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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/i2c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild33
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c278
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c215
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h46
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c194
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c35
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c188
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c431
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c216
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c264
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h39
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c95
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c96
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c86
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c113
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c73
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c37
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c41
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c73
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c46
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c48
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c37
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c37
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c37
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c116
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h68
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c76
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c51
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c76
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c36
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c36
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c36
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h37
33 files changed, 3290 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild
new file mode 100644
index 000000000..819703913
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: MIT
+nvkm-y += nvkm/subdev/i2c/base.o
+nvkm-y += nvkm/subdev/i2c/nv04.o
+nvkm-y += nvkm/subdev/i2c/nv4e.o
+nvkm-y += nvkm/subdev/i2c/nv50.o
+nvkm-y += nvkm/subdev/i2c/g94.o
+nvkm-y += nvkm/subdev/i2c/gf117.o
+nvkm-y += nvkm/subdev/i2c/gf119.o
+nvkm-y += nvkm/subdev/i2c/gk104.o
+nvkm-y += nvkm/subdev/i2c/gk110.o
+nvkm-y += nvkm/subdev/i2c/gm200.o
+
+nvkm-y += nvkm/subdev/i2c/pad.o
+nvkm-y += nvkm/subdev/i2c/padnv04.o
+nvkm-y += nvkm/subdev/i2c/padnv4e.o
+nvkm-y += nvkm/subdev/i2c/padnv50.o
+nvkm-y += nvkm/subdev/i2c/padg94.o
+nvkm-y += nvkm/subdev/i2c/padgf119.o
+nvkm-y += nvkm/subdev/i2c/padgm200.o
+
+nvkm-y += nvkm/subdev/i2c/bus.o
+nvkm-y += nvkm/subdev/i2c/busnv04.o
+nvkm-y += nvkm/subdev/i2c/busnv4e.o
+nvkm-y += nvkm/subdev/i2c/busnv50.o
+nvkm-y += nvkm/subdev/i2c/busgf119.o
+nvkm-y += nvkm/subdev/i2c/bit.o
+
+nvkm-y += nvkm/subdev/i2c/aux.o
+nvkm-y += nvkm/subdev/i2c/auxg94.o
+nvkm-y += nvkm/subdev/i2c/auxgf119.o
+nvkm-y += nvkm/subdev/i2c/auxgm200.o
+
+nvkm-y += nvkm/subdev/i2c/anx9805.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c
new file mode 100644
index 000000000..dd391809f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2013 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define anx9805_pad(p) container_of((p), struct anx9805_pad, base)
+#define anx9805_bus(p) container_of((p), struct anx9805_bus, base)
+#define anx9805_aux(p) container_of((p), struct anx9805_aux, base)
+#include "aux.h"
+#include "bus.h"
+
+struct anx9805_pad {
+ struct nvkm_i2c_pad base;
+ struct nvkm_i2c_bus *bus;
+ u8 addr;
+};
+
+struct anx9805_bus {
+ struct nvkm_i2c_bus base;
+ struct anx9805_pad *pad;
+ u8 addr;
+};
+
+static int
+anx9805_bus_xfer(struct nvkm_i2c_bus *base, struct i2c_msg *msgs, int num)
+{
+ struct anx9805_bus *bus = anx9805_bus(base);
+ struct anx9805_pad *pad = bus->pad;
+ struct i2c_adapter *adap = &pad->bus->i2c;
+ struct i2c_msg *msg = msgs;
+ int ret = -ETIMEDOUT;
+ int i, j, cnt = num;
+ u8 seg = 0x00, off = 0x00, tmp;
+
+ tmp = nvkm_rdi2cr(adap, pad->addr, 0x07) & ~0x10;
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp | 0x10);
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp);
+ nvkm_wri2cr(adap, bus->addr, 0x43, 0x05);
+ mdelay(5);
+
+ while (cnt--) {
+ if ( (msg->flags & I2C_M_RD) && msg->addr == 0x50) {
+ nvkm_wri2cr(adap, bus->addr, 0x40, msg->addr << 1);
+ nvkm_wri2cr(adap, bus->addr, 0x41, seg);
+ nvkm_wri2cr(adap, bus->addr, 0x42, off);
+ nvkm_wri2cr(adap, bus->addr, 0x44, msg->len);
+ nvkm_wri2cr(adap, bus->addr, 0x45, 0x00);
+ nvkm_wri2cr(adap, bus->addr, 0x43, 0x01);
+ for (i = 0; i < msg->len; i++) {
+ j = 0;
+ while (nvkm_rdi2cr(adap, bus->addr, 0x46) & 0x10) {
+ mdelay(5);
+ if (j++ == 32)
+ goto done;
+ }
+ msg->buf[i] = nvkm_rdi2cr(adap, bus->addr, 0x47);
+ }
+ } else
+ if (!(msg->flags & I2C_M_RD)) {
+ if (msg->addr == 0x50 && msg->len == 0x01) {
+ off = msg->buf[0];
+ } else
+ if (msg->addr == 0x30 && msg->len == 0x01) {
+ seg = msg->buf[0];
+ } else
+ goto done;
+ } else {
+ goto done;
+ }
+ msg++;
+ }
+
+ ret = num;
+done:
+ nvkm_wri2cr(adap, bus->addr, 0x43, 0x00);
+ return ret;
+}
+
+static const struct nvkm_i2c_bus_func
+anx9805_bus_func = {
+ .xfer = anx9805_bus_xfer,
+};
+
+static int
+anx9805_bus_new(struct nvkm_i2c_pad *base, int id, u8 drive,
+ struct nvkm_i2c_bus **pbus)
+{
+ struct anx9805_pad *pad = anx9805_pad(base);
+ struct anx9805_bus *bus;
+ int ret;
+
+ if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &bus->base;
+ bus->pad = pad;
+
+ ret = nvkm_i2c_bus_ctor(&anx9805_bus_func, &pad->base, id, &bus->base);
+ if (ret)
+ return ret;
+
+ switch (pad->addr) {
+ case 0x39: bus->addr = 0x3d; break;
+ case 0x3b: bus->addr = 0x3f; break;
+ default:
+ return -ENOSYS;
+ }
+
+ return 0;
+}
+
+struct anx9805_aux {
+ struct nvkm_i2c_aux base;
+ struct anx9805_pad *pad;
+ u8 addr;
+};
+
+static int
+anx9805_aux_xfer(struct nvkm_i2c_aux *base, bool retry,
+ u8 type, u32 addr, u8 *data, u8 *size)
+{
+ struct anx9805_aux *aux = anx9805_aux(base);
+ struct anx9805_pad *pad = aux->pad;
+ struct i2c_adapter *adap = &pad->bus->i2c;
+ int i, ret = -ETIMEDOUT;
+ u8 buf[16] = {};
+ u8 tmp;
+
+ AUX_DBG(&aux->base, "%02x %05x %d", type, addr, *size);
+
+ tmp = nvkm_rdi2cr(adap, pad->addr, 0x07) & ~0x04;
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp | 0x04);
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp);
+ nvkm_wri2cr(adap, pad->addr, 0xf7, 0x01);
+
+ nvkm_wri2cr(adap, aux->addr, 0xe4, 0x80);
+ if (!(type & 1)) {
+ memcpy(buf, data, *size);
+ AUX_DBG(&aux->base, "%16ph", buf);
+ for (i = 0; i < *size; i++)
+ nvkm_wri2cr(adap, aux->addr, 0xf0 + i, buf[i]);
+ }
+ nvkm_wri2cr(adap, aux->addr, 0xe5, ((*size - 1) << 4) | type);
+ nvkm_wri2cr(adap, aux->addr, 0xe6, (addr & 0x000ff) >> 0);
+ nvkm_wri2cr(adap, aux->addr, 0xe7, (addr & 0x0ff00) >> 8);
+ nvkm_wri2cr(adap, aux->addr, 0xe8, (addr & 0xf0000) >> 16);
+ nvkm_wri2cr(adap, aux->addr, 0xe9, 0x01);
+
+ i = 0;
+ while ((tmp = nvkm_rdi2cr(adap, aux->addr, 0xe9)) & 0x01) {
+ mdelay(5);
+ if (i++ == 32)
+ goto done;
+ }
+
+ if ((tmp = nvkm_rdi2cr(adap, pad->addr, 0xf7)) & 0x01) {
+ ret = -EIO;
+ goto done;
+ }
+
+ if (type & 1) {
+ for (i = 0; i < *size; i++)
+ buf[i] = nvkm_rdi2cr(adap, aux->addr, 0xf0 + i);
+ AUX_DBG(&aux->base, "%16ph", buf);
+ memcpy(data, buf, *size);
+ }
+
+ ret = 0;
+done:
+ nvkm_wri2cr(adap, pad->addr, 0xf7, 0x01);
+ return ret;
+}
+
+static int
+anx9805_aux_lnk_ctl(struct nvkm_i2c_aux *base,
+ int link_nr, int link_bw, bool enh)
+{
+ struct anx9805_aux *aux = anx9805_aux(base);
+ struct anx9805_pad *pad = aux->pad;
+ struct i2c_adapter *adap = &pad->bus->i2c;
+ u8 tmp, i;
+
+ AUX_DBG(&aux->base, "ANX9805 train %d %02x %d",
+ link_nr, link_bw, enh);
+
+ nvkm_wri2cr(adap, aux->addr, 0xa0, link_bw);
+ nvkm_wri2cr(adap, aux->addr, 0xa1, link_nr | (enh ? 0x80 : 0x00));
+ nvkm_wri2cr(adap, aux->addr, 0xa2, 0x01);
+ nvkm_wri2cr(adap, aux->addr, 0xa8, 0x01);
+
+ i = 0;
+ while ((tmp = nvkm_rdi2cr(adap, aux->addr, 0xa8)) & 0x01) {
+ mdelay(5);
+ if (i++ == 100) {
+ AUX_ERR(&aux->base, "link training timeout");
+ return -ETIMEDOUT;
+ }
+ }
+
+ if (tmp & 0x70) {
+ AUX_ERR(&aux->base, "link training failed");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static const struct nvkm_i2c_aux_func
+anx9805_aux_func = {
+ .xfer = anx9805_aux_xfer,
+ .lnk_ctl = anx9805_aux_lnk_ctl,
+};
+
+static int
+anx9805_aux_new(struct nvkm_i2c_pad *base, int id, u8 drive,
+ struct nvkm_i2c_aux **pbus)
+{
+ struct anx9805_pad *pad = anx9805_pad(base);
+ struct anx9805_aux *aux;
+ int ret;
+
+ if (!(aux = kzalloc(sizeof(*aux), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &aux->base;
+ aux->pad = pad;
+
+ ret = nvkm_i2c_aux_ctor(&anx9805_aux_func, &pad->base, id, &aux->base);
+ if (ret)
+ return ret;
+
+ switch (pad->addr) {
+ case 0x39: aux->addr = 0x38; break;
+ case 0x3b: aux->addr = 0x3c; break;
+ default:
+ return -ENOSYS;
+ }
+
+ return 0;
+}
+
+static const struct nvkm_i2c_pad_func
+anx9805_pad_func = {
+ .bus_new_4 = anx9805_bus_new,
+ .aux_new_6 = anx9805_aux_new,
+};
+
+int
+anx9805_pad_new(struct nvkm_i2c_bus *bus, int id, u8 addr,
+ struct nvkm_i2c_pad **ppad)
+{
+ struct anx9805_pad *pad;
+
+ if (!(pad = kzalloc(sizeof(*pad), GFP_KERNEL)))
+ return -ENOMEM;
+ *ppad = &pad->base;
+
+ nvkm_i2c_pad_ctor(&anx9805_pad_func, bus->pad->i2c, id, &pad->base);
+ pad->bus = bus;
+ pad->addr = addr;
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
new file mode 100644
index 000000000..d063d0dc1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright 2009 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <linux/string_helpers.h>
+
+#include "aux.h"
+#include "pad.h"
+
+static int
+nvkm_i2c_aux_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+ struct nvkm_i2c_aux *aux = container_of(adap, typeof(*aux), i2c);
+ struct i2c_msg *msg = msgs;
+ int ret, mcnt = num;
+
+ ret = nvkm_i2c_aux_acquire(aux);
+ if (ret)
+ return ret;
+
+ while (mcnt--) {
+ u8 remaining = msg->len;
+ u8 *ptr = msg->buf;
+
+ while (remaining) {
+ u8 cnt, retries, cmd;
+
+ if (msg->flags & I2C_M_RD)
+ cmd = 1;
+ else
+ cmd = 0;
+
+ if (mcnt || remaining > 16)
+ cmd |= 4; /* MOT */
+
+ for (retries = 0, cnt = 0;
+ retries < 32 && !cnt;
+ retries++) {
+ cnt = min_t(u8, remaining, 16);
+ ret = aux->func->xfer(aux, true, cmd,
+ msg->addr, ptr, &cnt);
+ if (ret < 0)
+ goto out;
+ }
+ if (!cnt) {
+ AUX_TRACE(aux, "no data after 32 retries");
+ ret = -EIO;
+ goto out;
+ }
+
+ ptr += cnt;
+ remaining -= cnt;
+ }
+
+ msg++;
+ }
+
+ ret = num;
+out:
+ nvkm_i2c_aux_release(aux);
+ return ret;
+}
+
+static u32
+nvkm_i2c_aux_i2c_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm
+nvkm_i2c_aux_i2c_algo = {
+ .master_xfer = nvkm_i2c_aux_i2c_xfer,
+ .functionality = nvkm_i2c_aux_i2c_func
+};
+
+void
+nvkm_i2c_aux_monitor(struct nvkm_i2c_aux *aux, bool monitor)
+{
+ struct nvkm_i2c_pad *pad = aux->pad;
+ AUX_TRACE(aux, "monitor: %s", str_yes_no(monitor));
+ if (monitor)
+ nvkm_i2c_pad_mode(pad, NVKM_I2C_PAD_AUX);
+ else
+ nvkm_i2c_pad_mode(pad, NVKM_I2C_PAD_OFF);
+}
+
+void
+nvkm_i2c_aux_release(struct nvkm_i2c_aux *aux)
+{
+ struct nvkm_i2c_pad *pad = aux->pad;
+ AUX_TRACE(aux, "release");
+ nvkm_i2c_pad_release(pad);
+ mutex_unlock(&aux->mutex);
+}
+
+int
+nvkm_i2c_aux_acquire(struct nvkm_i2c_aux *aux)
+{
+ struct nvkm_i2c_pad *pad = aux->pad;
+ int ret;
+
+ AUX_TRACE(aux, "acquire");
+ mutex_lock(&aux->mutex);
+
+ if (aux->enabled)
+ ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX);
+ else
+ ret = -EIO;
+
+ if (ret)
+ mutex_unlock(&aux->mutex);
+ return ret;
+}
+
+int
+nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *aux, bool retry, u8 type,
+ u32 addr, u8 *data, u8 *size)
+{
+ if (!*size && !aux->func->address_only) {
+ AUX_ERR(aux, "address-only transaction dropped");
+ return -ENOSYS;
+ }
+ return aux->func->xfer(aux, retry, type, addr, data, size);
+}
+
+int
+nvkm_i2c_aux_lnk_ctl(struct nvkm_i2c_aux *aux, int nr, int bw, bool ef)
+{
+ if (aux->func->lnk_ctl)
+ return aux->func->lnk_ctl(aux, nr, bw, ef);
+ return -ENODEV;
+}
+
+void
+nvkm_i2c_aux_del(struct nvkm_i2c_aux **paux)
+{
+ struct nvkm_i2c_aux *aux = *paux;
+ if (aux && !WARN_ON(!aux->func)) {
+ AUX_TRACE(aux, "dtor");
+ list_del(&aux->head);
+ i2c_del_adapter(&aux->i2c);
+ kfree(*paux);
+ *paux = NULL;
+ }
+}
+
+void
+nvkm_i2c_aux_init(struct nvkm_i2c_aux *aux)
+{
+ AUX_TRACE(aux, "init");
+ mutex_lock(&aux->mutex);
+ aux->enabled = true;
+ mutex_unlock(&aux->mutex);
+}
+
+void
+nvkm_i2c_aux_fini(struct nvkm_i2c_aux *aux)
+{
+ AUX_TRACE(aux, "fini");
+ mutex_lock(&aux->mutex);
+ aux->enabled = false;
+ mutex_unlock(&aux->mutex);
+}
+
+int
+nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *func,
+ struct nvkm_i2c_pad *pad, int id,
+ struct nvkm_i2c_aux *aux)
+{
+ struct nvkm_device *device = pad->i2c->subdev.device;
+
+ aux->func = func;
+ aux->pad = pad;
+ aux->id = id;
+ mutex_init(&aux->mutex);
+ list_add_tail(&aux->head, &pad->i2c->aux);
+ AUX_TRACE(aux, "ctor");
+
+ snprintf(aux->i2c.name, sizeof(aux->i2c.name), "nvkm-%s-aux-%04x",
+ dev_name(device->dev), id);
+ aux->i2c.owner = THIS_MODULE;
+ aux->i2c.dev.parent = device->dev;
+ aux->i2c.algo = &nvkm_i2c_aux_i2c_algo;
+ return i2c_add_adapter(&aux->i2c);
+}
+
+int
+nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *func,
+ struct nvkm_i2c_pad *pad, int id,
+ struct nvkm_i2c_aux **paux)
+{
+ if (!(*paux = kzalloc(sizeof(**paux), GFP_KERNEL)))
+ return -ENOMEM;
+ return nvkm_i2c_aux_ctor(func, pad, id, *paux);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
new file mode 100644
index 000000000..f920eabf8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_I2C_AUX_H__
+#define __NVKM_I2C_AUX_H__
+#include "pad.h"
+
+static inline void
+nvkm_i2c_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable)
+{
+ if (i2c->func->aux_autodpcd)
+ i2c->func->aux_autodpcd(i2c, aux, false);
+}
+
+struct nvkm_i2c_aux_func {
+ bool address_only;
+ int (*xfer)(struct nvkm_i2c_aux *, bool retry, u8 type,
+ u32 addr, u8 *data, u8 *size);
+ int (*lnk_ctl)(struct nvkm_i2c_aux *, int link_nr, int link_bw,
+ bool enhanced_framing);
+};
+
+int nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
+ int id, struct nvkm_i2c_aux *);
+int nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
+ int id, struct nvkm_i2c_aux **);
+void nvkm_i2c_aux_del(struct nvkm_i2c_aux **);
+void nvkm_i2c_aux_init(struct nvkm_i2c_aux *);
+void nvkm_i2c_aux_fini(struct nvkm_i2c_aux *);
+int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type,
+ u32 addr, u8 *data, u8 *size);
+
+int g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
+ int, u8, struct nvkm_i2c_aux **);
+
+int g94_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
+int g94_i2c_aux_xfer(struct nvkm_i2c_aux *, bool, u8, u32, u8 *, u8 *);
+int gf119_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
+int gm200_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
+
+#define AUX_MSG(b,l,f,a...) do { \
+ struct nvkm_i2c_aux *_aux = (b); \
+ nvkm_##l(&_aux->pad->i2c->subdev, "aux %04x: "f"\n", _aux->id, ##a); \
+} while(0)
+#define AUX_ERR(b,f,a...) AUX_MSG((b), error, f, ##a)
+#define AUX_DBG(b,f,a...) AUX_MSG((b), debug, f, ##a)
+#define AUX_TRACE(b,f,a...) AUX_MSG((b), trace, f, ##a)
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
new file mode 100644
index 000000000..47068f6f9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define g94_i2c_aux(p) container_of((p), struct g94_i2c_aux, base)
+#include "aux.h"
+
+struct g94_i2c_aux {
+ struct nvkm_i2c_aux base;
+ int ch;
+};
+
+static void
+g94_i2c_aux_fini(struct g94_i2c_aux *aux)
+{
+ struct nvkm_device *device = aux->base.pad->i2c->subdev.device;
+ nvkm_mask(device, 0x00e4e4 + (aux->ch * 0x50), 0x00310000, 0x00000000);
+}
+
+static int
+g94_i2c_aux_init(struct g94_i2c_aux *aux)
+{
+ struct nvkm_device *device = aux->base.pad->i2c->subdev.device;
+ const u32 unksel = 1; /* nfi which to use, or if it matters.. */
+ const u32 ureq = unksel ? 0x00100000 : 0x00200000;
+ const u32 urep = unksel ? 0x01000000 : 0x02000000;
+ u32 ctrl, timeout;
+
+ /* wait up to 1ms for any previous transaction to be done... */
+ timeout = 1000;
+ do {
+ ctrl = nvkm_rd32(device, 0x00e4e4 + (aux->ch * 0x50));
+ udelay(1);
+ if (!timeout--) {
+ AUX_ERR(&aux->base, "begin idle timeout %08x", ctrl);
+ return -EBUSY;
+ }
+ } while (ctrl & 0x03010000);
+
+ /* set some magic, and wait up to 1ms for it to appear */
+ nvkm_mask(device, 0x00e4e4 + (aux->ch * 0x50), 0x00300000, ureq);
+ timeout = 1000;
+ do {
+ ctrl = nvkm_rd32(device, 0x00e4e4 + (aux->ch * 0x50));
+ udelay(1);
+ if (!timeout--) {
+ AUX_ERR(&aux->base, "magic wait %08x", ctrl);
+ g94_i2c_aux_fini(aux);
+ return -EBUSY;
+ }
+ } while ((ctrl & 0x03000000) != urep);
+
+ return 0;
+}
+
+int
+g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
+ u8 type, u32 addr, u8 *data, u8 *size)
+{
+ struct g94_i2c_aux *aux = g94_i2c_aux(obj);
+ struct nvkm_i2c *i2c = aux->base.pad->i2c;
+ struct nvkm_device *device = i2c->subdev.device;
+ const u32 base = aux->ch * 0x50;
+ u32 ctrl, stat, timeout, retries = 0;
+ u32 xbuf[4] = {};
+ int ret, i;
+
+ AUX_TRACE(&aux->base, "%d: %08x %d", type, addr, *size);
+
+ ret = g94_i2c_aux_init(aux);
+ if (ret < 0)
+ goto out;
+
+ stat = nvkm_rd32(device, 0x00e4e8 + base);
+ if (!(stat & 0x10000000)) {
+ AUX_TRACE(&aux->base, "sink not detected");
+ ret = -ENXIO;
+ goto out;
+ }
+
+ nvkm_i2c_aux_autodpcd(i2c, aux->ch, false);
+
+ if (!(type & 1)) {
+ memcpy(xbuf, data, *size);
+ for (i = 0; i < 16; i += 4) {
+ AUX_TRACE(&aux->base, "wr %08x", xbuf[i / 4]);
+ nvkm_wr32(device, 0x00e4c0 + base + i, xbuf[i / 4]);
+ }
+ }
+
+ ctrl = nvkm_rd32(device, 0x00e4e4 + base);
+ ctrl &= ~0x0001f1ff;
+ ctrl |= type << 12;
+ ctrl |= (*size ? (*size - 1) : 0x00000100);
+ nvkm_wr32(device, 0x00e4e0 + base, addr);
+
+ /* (maybe) retry transaction a number of times on failure... */
+ do {
+ /* reset, and delay a while if this is a retry */
+ nvkm_wr32(device, 0x00e4e4 + base, 0x80000000 | ctrl);
+ nvkm_wr32(device, 0x00e4e4 + base, 0x00000000 | ctrl);
+ if (retries)
+ udelay(400);
+
+ /* transaction request, wait up to 2ms for it to complete */
+ nvkm_wr32(device, 0x00e4e4 + base, 0x00010000 | ctrl);
+
+ timeout = 2000;
+ do {
+ ctrl = nvkm_rd32(device, 0x00e4e4 + base);
+ udelay(1);
+ if (!timeout--) {
+ AUX_ERR(&aux->base, "timeout %08x", ctrl);
+ ret = -EIO;
+ goto out_err;
+ }
+ } while (ctrl & 0x00010000);
+ ret = 0;
+
+ /* read status, and check if transaction completed ok */
+ stat = nvkm_mask(device, 0x00e4e8 + base, 0, 0);
+ if ((stat & 0x000f0000) == 0x00080000 ||
+ (stat & 0x000f0000) == 0x00020000)
+ ret = 1;
+ if ((stat & 0x00000100))
+ ret = -ETIMEDOUT;
+ if ((stat & 0x00000e00))
+ ret = -EIO;
+
+ AUX_TRACE(&aux->base, "%02d %08x %08x", retries, ctrl, stat);
+ } while (ret && retry && retries++ < 32);
+
+ if (type & 1) {
+ for (i = 0; i < 16; i += 4) {
+ xbuf[i / 4] = nvkm_rd32(device, 0x00e4d0 + base + i);
+ AUX_TRACE(&aux->base, "rd %08x", xbuf[i / 4]);
+ }
+ memcpy(data, xbuf, *size);
+ *size = stat & 0x0000001f;
+ }
+out_err:
+ nvkm_i2c_aux_autodpcd(i2c, aux->ch, true);
+out:
+ g94_i2c_aux_fini(aux);
+ return ret < 0 ? ret : (stat & 0x000f0000) >> 16;
+}
+
+int
+g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *func,
+ struct nvkm_i2c_pad *pad, int index, u8 drive,
+ struct nvkm_i2c_aux **paux)
+{
+ struct g94_i2c_aux *aux;
+
+ if (!(aux = kzalloc(sizeof(*aux), GFP_KERNEL)))
+ return -ENOMEM;
+ *paux = &aux->base;
+
+ nvkm_i2c_aux_ctor(func, pad, index, &aux->base);
+ aux->ch = drive;
+ aux->base.intr = 1 << aux->ch;
+ return 0;
+}
+
+static const struct nvkm_i2c_aux_func
+g94_i2c_aux = {
+ .xfer = g94_i2c_aux_xfer,
+};
+
+int
+g94_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
+ struct nvkm_i2c_aux **paux)
+{
+ return g94_i2c_aux_new_(&g94_i2c_aux, pad, index, drive, paux);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c
new file mode 100644
index 000000000..dab40cd8f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2017 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "aux.h"
+
+static const struct nvkm_i2c_aux_func
+gf119_i2c_aux = {
+ .address_only = true,
+ .xfer = g94_i2c_aux_xfer,
+};
+
+int
+gf119_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
+ struct nvkm_i2c_aux **paux)
+{
+ return g94_i2c_aux_new_(&gf119_i2c_aux, pad, index, drive, paux);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
new file mode 100644
index 000000000..8bd1d442e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c
@@ -0,0 +1,188 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define gm200_i2c_aux(p) container_of((p), struct gm200_i2c_aux, base)
+#include "aux.h"
+
+struct gm200_i2c_aux {
+ struct nvkm_i2c_aux base;
+ int ch;
+};
+
+static void
+gm200_i2c_aux_fini(struct gm200_i2c_aux *aux)
+{
+ struct nvkm_device *device = aux->base.pad->i2c->subdev.device;
+ nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00710000, 0x00000000);
+}
+
+static int
+gm200_i2c_aux_init(struct gm200_i2c_aux *aux)
+{
+ struct nvkm_device *device = aux->base.pad->i2c->subdev.device;
+ const u32 unksel = 1; /* nfi which to use, or if it matters.. */
+ const u32 ureq = unksel ? 0x00100000 : 0x00200000;
+ const u32 urep = unksel ? 0x01000000 : 0x02000000;
+ u32 ctrl, timeout;
+
+ /* wait up to 1ms for any previous transaction to be done... */
+ timeout = 1000;
+ do {
+ ctrl = nvkm_rd32(device, 0x00d954 + (aux->ch * 0x50));
+ udelay(1);
+ if (!timeout--) {
+ AUX_ERR(&aux->base, "begin idle timeout %08x", ctrl);
+ return -EBUSY;
+ }
+ } while (ctrl & 0x07010000);
+
+ /* set some magic, and wait up to 1ms for it to appear */
+ nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00700000, ureq);
+ timeout = 1000;
+ do {
+ ctrl = nvkm_rd32(device, 0x00d954 + (aux->ch * 0x50));
+ udelay(1);
+ if (!timeout--) {
+ AUX_ERR(&aux->base, "magic wait %08x", ctrl);
+ gm200_i2c_aux_fini(aux);
+ return -EBUSY;
+ }
+ } while ((ctrl & 0x07000000) != urep);
+
+ return 0;
+}
+
+static int
+gm200_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry,
+ u8 type, u32 addr, u8 *data, u8 *size)
+{
+ struct gm200_i2c_aux *aux = gm200_i2c_aux(obj);
+ struct nvkm_i2c *i2c = aux->base.pad->i2c;
+ struct nvkm_device *device = i2c->subdev.device;
+ const u32 base = aux->ch * 0x50;
+ u32 ctrl, stat, timeout, retries = 0;
+ u32 xbuf[4] = {};
+ int ret, i;
+
+ AUX_TRACE(&aux->base, "%d: %08x %d", type, addr, *size);
+
+ ret = gm200_i2c_aux_init(aux);
+ if (ret < 0)
+ goto out;
+
+ stat = nvkm_rd32(device, 0x00d958 + base);
+ if (!(stat & 0x10000000)) {
+ AUX_TRACE(&aux->base, "sink not detected");
+ ret = -ENXIO;
+ goto out;
+ }
+
+ nvkm_i2c_aux_autodpcd(i2c, aux->ch, false);
+
+ if (!(type & 1)) {
+ memcpy(xbuf, data, *size);
+ for (i = 0; i < 16; i += 4) {
+ AUX_TRACE(&aux->base, "wr %08x", xbuf[i / 4]);
+ nvkm_wr32(device, 0x00d930 + base + i, xbuf[i / 4]);
+ }
+ }
+
+ ctrl = nvkm_rd32(device, 0x00d954 + base);
+ ctrl &= ~0x0001f1ff;
+ ctrl |= type << 12;
+ ctrl |= (*size ? (*size - 1) : 0x00000100);
+ nvkm_wr32(device, 0x00d950 + base, addr);
+
+ /* (maybe) retry transaction a number of times on failure... */
+ do {
+ /* reset, and delay a while if this is a retry */
+ nvkm_wr32(device, 0x00d954 + base, 0x80000000 | ctrl);
+ nvkm_wr32(device, 0x00d954 + base, 0x00000000 | ctrl);
+ if (retries)
+ udelay(400);
+
+ /* transaction request, wait up to 2ms for it to complete */
+ nvkm_wr32(device, 0x00d954 + base, 0x00010000 | ctrl);
+
+ timeout = 2000;
+ do {
+ ctrl = nvkm_rd32(device, 0x00d954 + base);
+ udelay(1);
+ if (!timeout--) {
+ AUX_ERR(&aux->base, "timeout %08x", ctrl);
+ ret = -EIO;
+ goto out_err;
+ }
+ } while (ctrl & 0x00010000);
+ ret = 0;
+
+ /* read status, and check if transaction completed ok */
+ stat = nvkm_mask(device, 0x00d958 + base, 0, 0);
+ if ((stat & 0x000f0000) == 0x00080000 ||
+ (stat & 0x000f0000) == 0x00020000)
+ ret = 1;
+ if ((stat & 0x00000100))
+ ret = -ETIMEDOUT;
+ if ((stat & 0x00000e00))
+ ret = -EIO;
+
+ AUX_TRACE(&aux->base, "%02d %08x %08x", retries, ctrl, stat);
+ } while (ret && retry && retries++ < 32);
+
+ if (type & 1) {
+ for (i = 0; i < 16; i += 4) {
+ xbuf[i / 4] = nvkm_rd32(device, 0x00d940 + base + i);
+ AUX_TRACE(&aux->base, "rd %08x", xbuf[i / 4]);
+ }
+ memcpy(data, xbuf, *size);
+ *size = stat & 0x0000001f;
+ }
+
+out_err:
+ nvkm_i2c_aux_autodpcd(i2c, aux->ch, true);
+out:
+ gm200_i2c_aux_fini(aux);
+ return ret < 0 ? ret : (stat & 0x000f0000) >> 16;
+}
+
+static const struct nvkm_i2c_aux_func
+gm200_i2c_aux_func = {
+ .address_only = true,
+ .xfer = gm200_i2c_aux_xfer,
+};
+
+int
+gm200_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive,
+ struct nvkm_i2c_aux **paux)
+{
+ struct gm200_i2c_aux *aux;
+
+ if (!(aux = kzalloc(sizeof(*aux), GFP_KERNEL)))
+ return -ENOMEM;
+ *paux = &aux->base;
+
+ nvkm_i2c_aux_ctor(&gm200_i2c_aux_func, pad, index, &aux->base);
+ aux->ch = drive;
+ aux->base.intr = 1 << aux->ch;
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
new file mode 100644
index 000000000..cb5cb533d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
@@ -0,0 +1,431 @@
+/*
+ * Copyright 2013 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "aux.h"
+#include "bus.h"
+#include "pad.h"
+
+#include <core/notify.h>
+#include <core/option.h>
+#include <subdev/bios.h>
+#include <subdev/bios/dcb.h>
+#include <subdev/bios/i2c.h>
+
+static struct nvkm_i2c_pad *
+nvkm_i2c_pad_find(struct nvkm_i2c *i2c, int id)
+{
+ struct nvkm_i2c_pad *pad;
+
+ list_for_each_entry(pad, &i2c->pad, head) {
+ if (pad->id == id)
+ return pad;
+ }
+
+ return NULL;
+}
+
+struct nvkm_i2c_bus *
+nvkm_i2c_bus_find(struct nvkm_i2c *i2c, int id)
+{
+ struct nvkm_bios *bios = i2c->subdev.device->bios;
+ struct nvkm_i2c_bus *bus;
+
+ if (id == NVKM_I2C_BUS_PRI || id == NVKM_I2C_BUS_SEC) {
+ u8 ver, hdr, cnt, len;
+ u16 i2c = dcb_i2c_table(bios, &ver, &hdr, &cnt, &len);
+ if (i2c && ver >= 0x30) {
+ u8 auxidx = nvbios_rd08(bios, i2c + 4);
+ if (id == NVKM_I2C_BUS_PRI)
+ id = NVKM_I2C_BUS_CCB((auxidx & 0x0f) >> 0);
+ else
+ id = NVKM_I2C_BUS_CCB((auxidx & 0xf0) >> 4);
+ } else {
+ id = NVKM_I2C_BUS_CCB(2);
+ }
+ }
+
+ list_for_each_entry(bus, &i2c->bus, head) {
+ if (bus->id == id)
+ return bus;
+ }
+
+ return NULL;
+}
+
+struct nvkm_i2c_aux *
+nvkm_i2c_aux_find(struct nvkm_i2c *i2c, int id)
+{
+ struct nvkm_i2c_aux *aux;
+
+ list_for_each_entry(aux, &i2c->aux, head) {
+ if (aux->id == id)
+ return aux;
+ }
+
+ return NULL;
+}
+
+static void
+nvkm_i2c_intr_fini(struct nvkm_event *event, int type, int id)
+{
+ struct nvkm_i2c *i2c = container_of(event, typeof(*i2c), event);
+ struct nvkm_i2c_aux *aux = nvkm_i2c_aux_find(i2c, id);
+ if (aux)
+ i2c->func->aux_mask(i2c, type, aux->intr, 0);
+}
+
+static void
+nvkm_i2c_intr_init(struct nvkm_event *event, int type, int id)
+{
+ struct nvkm_i2c *i2c = container_of(event, typeof(*i2c), event);
+ struct nvkm_i2c_aux *aux = nvkm_i2c_aux_find(i2c, id);
+ if (aux)
+ i2c->func->aux_mask(i2c, type, aux->intr, aux->intr);
+}
+
+static int
+nvkm_i2c_intr_ctor(struct nvkm_object *object, void *data, u32 size,
+ struct nvkm_notify *notify)
+{
+ struct nvkm_i2c_ntfy_req *req = data;
+ if (!WARN_ON(size != sizeof(*req))) {
+ notify->size = sizeof(struct nvkm_i2c_ntfy_rep);
+ notify->types = req->mask;
+ notify->index = req->port;
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static const struct nvkm_event_func
+nvkm_i2c_intr_func = {
+ .ctor = nvkm_i2c_intr_ctor,
+ .init = nvkm_i2c_intr_init,
+ .fini = nvkm_i2c_intr_fini,
+};
+
+static void
+nvkm_i2c_intr(struct nvkm_subdev *subdev)
+{
+ struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+ struct nvkm_i2c_aux *aux;
+ u32 hi, lo, rq, tx;
+
+ if (!i2c->func->aux_stat)
+ return;
+
+ i2c->func->aux_stat(i2c, &hi, &lo, &rq, &tx);
+ if (!hi && !lo && !rq && !tx)
+ return;
+
+ list_for_each_entry(aux, &i2c->aux, head) {
+ u32 mask = 0;
+ if (hi & aux->intr) mask |= NVKM_I2C_PLUG;
+ if (lo & aux->intr) mask |= NVKM_I2C_UNPLUG;
+ if (rq & aux->intr) mask |= NVKM_I2C_IRQ;
+ if (tx & aux->intr) mask |= NVKM_I2C_DONE;
+ if (mask) {
+ struct nvkm_i2c_ntfy_rep rep = {
+ .mask = mask,
+ };
+ nvkm_event_send(&i2c->event, rep.mask, aux->id,
+ &rep, sizeof(rep));
+ }
+ }
+}
+
+static int
+nvkm_i2c_fini(struct nvkm_subdev *subdev, bool suspend)
+{
+ struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+ struct nvkm_i2c_pad *pad;
+ struct nvkm_i2c_bus *bus;
+ struct nvkm_i2c_aux *aux;
+ u32 mask;
+
+ list_for_each_entry(aux, &i2c->aux, head) {
+ nvkm_i2c_aux_fini(aux);
+ }
+
+ list_for_each_entry(bus, &i2c->bus, head) {
+ nvkm_i2c_bus_fini(bus);
+ }
+
+ if ((mask = (1 << i2c->func->aux) - 1), i2c->func->aux_stat) {
+ i2c->func->aux_mask(i2c, NVKM_I2C_ANY, mask, 0);
+ i2c->func->aux_stat(i2c, &mask, &mask, &mask, &mask);
+ }
+
+ list_for_each_entry(pad, &i2c->pad, head) {
+ nvkm_i2c_pad_fini(pad);
+ }
+
+ return 0;
+}
+
+static int
+nvkm_i2c_preinit(struct nvkm_subdev *subdev)
+{
+ struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+ struct nvkm_i2c_bus *bus;
+ struct nvkm_i2c_pad *pad;
+
+ /*
+ * We init our i2c busses as early as possible, since they may be
+ * needed by the vbios init scripts on some cards
+ */
+ list_for_each_entry(pad, &i2c->pad, head)
+ nvkm_i2c_pad_init(pad);
+ list_for_each_entry(bus, &i2c->bus, head)
+ nvkm_i2c_bus_init(bus);
+
+ return 0;
+}
+
+static int
+nvkm_i2c_init(struct nvkm_subdev *subdev)
+{
+ struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+ struct nvkm_i2c_bus *bus;
+ struct nvkm_i2c_pad *pad;
+ struct nvkm_i2c_aux *aux;
+
+ list_for_each_entry(pad, &i2c->pad, head) {
+ nvkm_i2c_pad_init(pad);
+ }
+
+ list_for_each_entry(bus, &i2c->bus, head) {
+ nvkm_i2c_bus_init(bus);
+ }
+
+ list_for_each_entry(aux, &i2c->aux, head) {
+ nvkm_i2c_aux_init(aux);
+ }
+
+ return 0;
+}
+
+static void *
+nvkm_i2c_dtor(struct nvkm_subdev *subdev)
+{
+ struct nvkm_i2c *i2c = nvkm_i2c(subdev);
+
+ nvkm_event_fini(&i2c->event);
+
+ while (!list_empty(&i2c->aux)) {
+ struct nvkm_i2c_aux *aux =
+ list_first_entry(&i2c->aux, typeof(*aux), head);
+ nvkm_i2c_aux_del(&aux);
+ }
+
+ while (!list_empty(&i2c->bus)) {
+ struct nvkm_i2c_bus *bus =
+ list_first_entry(&i2c->bus, typeof(*bus), head);
+ nvkm_i2c_bus_del(&bus);
+ }
+
+ while (!list_empty(&i2c->pad)) {
+ struct nvkm_i2c_pad *pad =
+ list_first_entry(&i2c->pad, typeof(*pad), head);
+ nvkm_i2c_pad_del(&pad);
+ }
+
+ return i2c;
+}
+
+static const struct nvkm_subdev_func
+nvkm_i2c = {
+ .dtor = nvkm_i2c_dtor,
+ .preinit = nvkm_i2c_preinit,
+ .init = nvkm_i2c_init,
+ .fini = nvkm_i2c_fini,
+ .intr = nvkm_i2c_intr,
+};
+
+static const struct nvkm_i2c_drv {
+ u8 bios;
+ u8 addr;
+ int (*pad_new)(struct nvkm_i2c_bus *, int id, u8 addr,
+ struct nvkm_i2c_pad **);
+}
+nvkm_i2c_drv[] = {
+ { 0x0d, 0x39, anx9805_pad_new },
+ { 0x0e, 0x3b, anx9805_pad_new },
+ {}
+};
+
+int
+nvkm_i2c_new_(const struct nvkm_i2c_func *func, struct nvkm_device *device,
+ enum nvkm_subdev_type type, int inst, struct nvkm_i2c **pi2c)
+{
+ struct nvkm_bios *bios = device->bios;
+ struct nvkm_i2c *i2c;
+ struct dcb_i2c_entry ccbE;
+ struct dcb_output dcbE;
+ u8 ver, hdr;
+ int ret, i;
+
+ if (!(i2c = *pi2c = kzalloc(sizeof(*i2c), GFP_KERNEL)))
+ return -ENOMEM;
+
+ nvkm_subdev_ctor(&nvkm_i2c, device, type, inst, &i2c->subdev);
+ i2c->func = func;
+ INIT_LIST_HEAD(&i2c->pad);
+ INIT_LIST_HEAD(&i2c->bus);
+ INIT_LIST_HEAD(&i2c->aux);
+
+ i = -1;
+ while (!dcb_i2c_parse(bios, ++i, &ccbE)) {
+ struct nvkm_i2c_pad *pad = NULL;
+ struct nvkm_i2c_bus *bus = NULL;
+ struct nvkm_i2c_aux *aux = NULL;
+
+ nvkm_debug(&i2c->subdev, "ccb %02x: type %02x drive %02x "
+ "sense %02x share %02x auxch %02x\n", i, ccbE.type,
+ ccbE.drive, ccbE.sense, ccbE.share, ccbE.auxch);
+
+ if (ccbE.share != DCB_I2C_UNUSED) {
+ const int id = NVKM_I2C_PAD_HYBRID(ccbE.share);
+ if (!(pad = nvkm_i2c_pad_find(i2c, id)))
+ ret = func->pad_s_new(i2c, id, &pad);
+ else
+ ret = 0;
+ } else {
+ ret = func->pad_x_new(i2c, NVKM_I2C_PAD_CCB(i), &pad);
+ }
+
+ if (ret) {
+ nvkm_error(&i2c->subdev, "ccb %02x pad, %d\n", i, ret);
+ nvkm_i2c_pad_del(&pad);
+ continue;
+ }
+
+ if (pad->func->bus_new_0 && ccbE.type == DCB_I2C_NV04_BIT) {
+ ret = pad->func->bus_new_0(pad, NVKM_I2C_BUS_CCB(i),
+ ccbE.drive,
+ ccbE.sense, &bus);
+ } else
+ if (pad->func->bus_new_4 &&
+ ( ccbE.type == DCB_I2C_NV4E_BIT ||
+ ccbE.type == DCB_I2C_NVIO_BIT ||
+ (ccbE.type == DCB_I2C_PMGR &&
+ ccbE.drive != DCB_I2C_UNUSED))) {
+ ret = pad->func->bus_new_4(pad, NVKM_I2C_BUS_CCB(i),
+ ccbE.drive, &bus);
+ }
+
+ if (ret) {
+ nvkm_error(&i2c->subdev, "ccb %02x bus, %d\n", i, ret);
+ nvkm_i2c_bus_del(&bus);
+ }
+
+ if (pad->func->aux_new_6 &&
+ ( ccbE.type == DCB_I2C_NVIO_AUX ||
+ (ccbE.type == DCB_I2C_PMGR &&
+ ccbE.auxch != DCB_I2C_UNUSED))) {
+ ret = pad->func->aux_new_6(pad, NVKM_I2C_BUS_CCB(i),
+ ccbE.auxch, &aux);
+ } else {
+ ret = 0;
+ }
+
+ if (ret) {
+ nvkm_error(&i2c->subdev, "ccb %02x aux, %d\n", i, ret);
+ nvkm_i2c_aux_del(&aux);
+ }
+
+ if (ccbE.type != DCB_I2C_UNUSED && !bus && !aux) {
+ nvkm_warn(&i2c->subdev, "ccb %02x was ignored\n", i);
+ continue;
+ }
+ }
+
+ i = -1;
+ while (dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE)) {
+ const struct nvkm_i2c_drv *drv = nvkm_i2c_drv;
+ struct nvkm_i2c_bus *bus;
+ struct nvkm_i2c_pad *pad;
+
+ /* internal outputs handled by native i2c busses (above) */
+ if (!dcbE.location)
+ continue;
+
+ /* we need an i2c bus to talk to the external encoder */
+ bus = nvkm_i2c_bus_find(i2c, dcbE.i2c_index);
+ if (!bus) {
+ nvkm_debug(&i2c->subdev, "dcb %02x no bus\n", i);
+ continue;
+ }
+
+ /* ... and a driver for it */
+ while (drv->pad_new) {
+ if (drv->bios == dcbE.extdev)
+ break;
+ drv++;
+ }
+
+ if (!drv->pad_new) {
+ nvkm_debug(&i2c->subdev, "dcb %02x drv %02x unknown\n",
+ i, dcbE.extdev);
+ continue;
+ }
+
+ /* find/create an instance of the driver */
+ pad = nvkm_i2c_pad_find(i2c, NVKM_I2C_PAD_EXT(dcbE.extdev));
+ if (!pad) {
+ const int id = NVKM_I2C_PAD_EXT(dcbE.extdev);
+ ret = drv->pad_new(bus, id, drv->addr, &pad);
+ if (ret) {
+ nvkm_error(&i2c->subdev, "dcb %02x pad, %d\n",
+ i, ret);
+ nvkm_i2c_pad_del(&pad);
+ continue;
+ }
+ }
+
+ /* create any i2c bus / aux channel required by the output */
+ if (pad->func->aux_new_6 && dcbE.type == DCB_OUTPUT_DP) {
+ const int id = NVKM_I2C_AUX_EXT(dcbE.extdev);
+ struct nvkm_i2c_aux *aux = NULL;
+ ret = pad->func->aux_new_6(pad, id, 0, &aux);
+ if (ret) {
+ nvkm_error(&i2c->subdev, "dcb %02x aux, %d\n",
+ i, ret);
+ nvkm_i2c_aux_del(&aux);
+ }
+ } else
+ if (pad->func->bus_new_4) {
+ const int id = NVKM_I2C_BUS_EXT(dcbE.extdev);
+ struct nvkm_i2c_bus *bus = NULL;
+ ret = pad->func->bus_new_4(pad, id, 0, &bus);
+ if (ret) {
+ nvkm_error(&i2c->subdev, "dcb %02x bus, %d\n",
+ i, ret);
+ nvkm_i2c_bus_del(&bus);
+ }
+ }
+ }
+
+ return nvkm_event_init(&nvkm_i2c_intr_func, 4, i, &i2c->event);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c
new file mode 100644
index 000000000..cdce11bba
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "bus.h"
+
+#ifdef CONFIG_NOUVEAU_I2C_INTERNAL
+#define T_TIMEOUT 2200000
+#define T_RISEFALL 1000
+#define T_HOLD 5000
+
+static inline void
+nvkm_i2c_drive_scl(struct nvkm_i2c_bus *bus, int state)
+{
+ bus->func->drive_scl(bus, state);
+}
+
+static inline void
+nvkm_i2c_drive_sda(struct nvkm_i2c_bus *bus, int state)
+{
+ bus->func->drive_sda(bus, state);
+}
+
+static inline int
+nvkm_i2c_sense_scl(struct nvkm_i2c_bus *bus)
+{
+ return bus->func->sense_scl(bus);
+}
+
+static inline int
+nvkm_i2c_sense_sda(struct nvkm_i2c_bus *bus)
+{
+ return bus->func->sense_sda(bus);
+}
+
+static void
+nvkm_i2c_delay(struct nvkm_i2c_bus *bus, u32 nsec)
+{
+ udelay((nsec + 500) / 1000);
+}
+
+static bool
+nvkm_i2c_raise_scl(struct nvkm_i2c_bus *bus)
+{
+ u32 timeout = T_TIMEOUT / T_RISEFALL;
+
+ nvkm_i2c_drive_scl(bus, 1);
+ do {
+ nvkm_i2c_delay(bus, T_RISEFALL);
+ } while (!nvkm_i2c_sense_scl(bus) && --timeout);
+
+ return timeout != 0;
+}
+
+static int
+i2c_start(struct nvkm_i2c_bus *bus)
+{
+ int ret = 0;
+
+ if (!nvkm_i2c_sense_scl(bus) ||
+ !nvkm_i2c_sense_sda(bus)) {
+ nvkm_i2c_drive_scl(bus, 0);
+ nvkm_i2c_drive_sda(bus, 1);
+ if (!nvkm_i2c_raise_scl(bus))
+ ret = -EBUSY;
+ }
+
+ nvkm_i2c_drive_sda(bus, 0);
+ nvkm_i2c_delay(bus, T_HOLD);
+ nvkm_i2c_drive_scl(bus, 0);
+ nvkm_i2c_delay(bus, T_HOLD);
+ return ret;
+}
+
+static void
+i2c_stop(struct nvkm_i2c_bus *bus)
+{
+ nvkm_i2c_drive_scl(bus, 0);
+ nvkm_i2c_drive_sda(bus, 0);
+ nvkm_i2c_delay(bus, T_RISEFALL);
+
+ nvkm_i2c_drive_scl(bus, 1);
+ nvkm_i2c_delay(bus, T_HOLD);
+ nvkm_i2c_drive_sda(bus, 1);
+ nvkm_i2c_delay(bus, T_HOLD);
+}
+
+static int
+i2c_bitw(struct nvkm_i2c_bus *bus, int sda)
+{
+ nvkm_i2c_drive_sda(bus, sda);
+ nvkm_i2c_delay(bus, T_RISEFALL);
+
+ if (!nvkm_i2c_raise_scl(bus))
+ return -ETIMEDOUT;
+ nvkm_i2c_delay(bus, T_HOLD);
+
+ nvkm_i2c_drive_scl(bus, 0);
+ nvkm_i2c_delay(bus, T_HOLD);
+ return 0;
+}
+
+static int
+i2c_bitr(struct nvkm_i2c_bus *bus)
+{
+ int sda;
+
+ nvkm_i2c_drive_sda(bus, 1);
+ nvkm_i2c_delay(bus, T_RISEFALL);
+
+ if (!nvkm_i2c_raise_scl(bus))
+ return -ETIMEDOUT;
+ nvkm_i2c_delay(bus, T_HOLD);
+
+ sda = nvkm_i2c_sense_sda(bus);
+
+ nvkm_i2c_drive_scl(bus, 0);
+ nvkm_i2c_delay(bus, T_HOLD);
+ return sda;
+}
+
+static int
+nvkm_i2c_get_byte(struct nvkm_i2c_bus *bus, u8 *byte, bool last)
+{
+ int i, bit;
+
+ *byte = 0;
+ for (i = 7; i >= 0; i--) {
+ bit = i2c_bitr(bus);
+ if (bit < 0)
+ return bit;
+ *byte |= bit << i;
+ }
+
+ return i2c_bitw(bus, last ? 1 : 0);
+}
+
+static int
+nvkm_i2c_put_byte(struct nvkm_i2c_bus *bus, u8 byte)
+{
+ int i, ret;
+ for (i = 7; i >= 0; i--) {
+ ret = i2c_bitw(bus, !!(byte & (1 << i)));
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = i2c_bitr(bus);
+ if (ret == 1) /* nack */
+ ret = -EIO;
+ return ret;
+}
+
+static int
+i2c_addr(struct nvkm_i2c_bus *bus, struct i2c_msg *msg)
+{
+ u32 addr = msg->addr << 1;
+ if (msg->flags & I2C_M_RD)
+ addr |= 1;
+ return nvkm_i2c_put_byte(bus, addr);
+}
+
+int
+nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *bus, struct i2c_msg *msgs, int num)
+{
+ struct i2c_msg *msg = msgs;
+ int ret = 0, mcnt = num;
+
+ while (!ret && mcnt--) {
+ u8 remaining = msg->len;
+ u8 *ptr = msg->buf;
+
+ ret = i2c_start(bus);
+ if (ret == 0)
+ ret = i2c_addr(bus, msg);
+
+ if (msg->flags & I2C_M_RD) {
+ while (!ret && remaining--)
+ ret = nvkm_i2c_get_byte(bus, ptr++, !remaining);
+ } else {
+ while (!ret && remaining--)
+ ret = nvkm_i2c_put_byte(bus, *ptr++);
+ }
+
+ msg++;
+ }
+
+ i2c_stop(bus);
+ return (ret < 0) ? ret : num;
+}
+#else
+int
+nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *bus, struct i2c_msg *msgs, int num)
+{
+ return -ENODEV;
+}
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c
new file mode 100644
index 000000000..ed50cc373
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "bus.h"
+#include "pad.h"
+
+#include <core/option.h>
+
+/*******************************************************************************
+ * i2c-algo-bit
+ ******************************************************************************/
+static int
+nvkm_i2c_bus_pre_xfer(struct i2c_adapter *adap)
+{
+ struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c);
+ return nvkm_i2c_bus_acquire(bus);
+}
+
+static void
+nvkm_i2c_bus_post_xfer(struct i2c_adapter *adap)
+{
+ struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c);
+ return nvkm_i2c_bus_release(bus);
+}
+
+static void
+nvkm_i2c_bus_setscl(void *data, int state)
+{
+ struct nvkm_i2c_bus *bus = data;
+ bus->func->drive_scl(bus, state);
+}
+
+static void
+nvkm_i2c_bus_setsda(void *data, int state)
+{
+ struct nvkm_i2c_bus *bus = data;
+ bus->func->drive_sda(bus, state);
+}
+
+static int
+nvkm_i2c_bus_getscl(void *data)
+{
+ struct nvkm_i2c_bus *bus = data;
+ return bus->func->sense_scl(bus);
+}
+
+static int
+nvkm_i2c_bus_getsda(void *data)
+{
+ struct nvkm_i2c_bus *bus = data;
+ return bus->func->sense_sda(bus);
+}
+
+/*******************************************************************************
+ * !i2c-algo-bit (off-chip i2c bus / hw i2c / internal bit-banging algo)
+ ******************************************************************************/
+static int
+nvkm_i2c_bus_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+ struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c);
+ int ret;
+
+ ret = nvkm_i2c_bus_acquire(bus);
+ if (ret)
+ return ret;
+
+ ret = bus->func->xfer(bus, msgs, num);
+ nvkm_i2c_bus_release(bus);
+ return ret;
+}
+
+static u32
+nvkm_i2c_bus_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm
+nvkm_i2c_bus_algo = {
+ .master_xfer = nvkm_i2c_bus_xfer,
+ .functionality = nvkm_i2c_bus_func,
+};
+
+/*******************************************************************************
+ * nvkm_i2c_bus base
+ ******************************************************************************/
+void
+nvkm_i2c_bus_init(struct nvkm_i2c_bus *bus)
+{
+ BUS_TRACE(bus, "init");
+ if (bus->func->init)
+ bus->func->init(bus);
+
+ mutex_lock(&bus->mutex);
+ bus->enabled = true;
+ mutex_unlock(&bus->mutex);
+}
+
+void
+nvkm_i2c_bus_fini(struct nvkm_i2c_bus *bus)
+{
+ BUS_TRACE(bus, "fini");
+ mutex_lock(&bus->mutex);
+ bus->enabled = false;
+ mutex_unlock(&bus->mutex);
+}
+
+void
+nvkm_i2c_bus_release(struct nvkm_i2c_bus *bus)
+{
+ struct nvkm_i2c_pad *pad = bus->pad;
+ BUS_TRACE(bus, "release");
+ nvkm_i2c_pad_release(pad);
+ mutex_unlock(&bus->mutex);
+}
+
+int
+nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *bus)
+{
+ struct nvkm_i2c_pad *pad = bus->pad;
+ int ret;
+
+ BUS_TRACE(bus, "acquire");
+ mutex_lock(&bus->mutex);
+
+ if (bus->enabled)
+ ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C);
+ else
+ ret = -EIO;
+
+ if (ret)
+ mutex_unlock(&bus->mutex);
+ return ret;
+}
+
+int
+nvkm_i2c_bus_probe(struct nvkm_i2c_bus *bus, const char *what,
+ struct nvkm_i2c_bus_probe *info,
+ bool (*match)(struct nvkm_i2c_bus *,
+ struct i2c_board_info *, void *), void *data)
+{
+ int i;
+
+ BUS_DBG(bus, "probing %ss", what);
+ for (i = 0; info[i].dev.addr; i++) {
+ u8 orig_udelay = 0;
+
+ if ((bus->i2c.algo == &i2c_bit_algo) && (info[i].udelay != 0)) {
+ struct i2c_algo_bit_data *algo = bus->i2c.algo_data;
+ BUS_DBG(bus, "%dms delay instead of %dms",
+ info[i].udelay, algo->udelay);
+ orig_udelay = algo->udelay;
+ algo->udelay = info[i].udelay;
+ }
+
+ if (nvkm_probe_i2c(&bus->i2c, info[i].dev.addr) &&
+ (!match || match(bus, &info[i].dev, data))) {
+ BUS_DBG(bus, "detected %s: %s",
+ what, info[i].dev.type);
+ return i;
+ }
+
+ if (orig_udelay) {
+ struct i2c_algo_bit_data *algo = bus->i2c.algo_data;
+ algo->udelay = orig_udelay;
+ }
+ }
+
+ BUS_DBG(bus, "no devices found.");
+ return -ENODEV;
+}
+
+void
+nvkm_i2c_bus_del(struct nvkm_i2c_bus **pbus)
+{
+ struct nvkm_i2c_bus *bus = *pbus;
+ if (bus && !WARN_ON(!bus->func)) {
+ BUS_TRACE(bus, "dtor");
+ list_del(&bus->head);
+ i2c_del_adapter(&bus->i2c);
+ kfree(bus->i2c.algo_data);
+ kfree(*pbus);
+ *pbus = NULL;
+ }
+}
+
+int
+nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *func,
+ struct nvkm_i2c_pad *pad, int id,
+ struct nvkm_i2c_bus *bus)
+{
+ struct nvkm_device *device = pad->i2c->subdev.device;
+ struct i2c_algo_bit_data *bit;
+#ifndef CONFIG_NOUVEAU_I2C_INTERNAL_DEFAULT
+ const bool internal = false;
+#else
+ const bool internal = true;
+#endif
+ int ret;
+
+ bus->func = func;
+ bus->pad = pad;
+ bus->id = id;
+ mutex_init(&bus->mutex);
+ list_add_tail(&bus->head, &pad->i2c->bus);
+ BUS_TRACE(bus, "ctor");
+
+ snprintf(bus->i2c.name, sizeof(bus->i2c.name), "nvkm-%s-bus-%04x",
+ dev_name(device->dev), id);
+ bus->i2c.owner = THIS_MODULE;
+ bus->i2c.dev.parent = device->dev;
+
+ if ( bus->func->drive_scl &&
+ !nvkm_boolopt(device->cfgopt, "NvI2C", internal)) {
+ if (!(bit = kzalloc(sizeof(*bit), GFP_KERNEL)))
+ return -ENOMEM;
+ bit->udelay = 10;
+ bit->timeout = usecs_to_jiffies(2200);
+ bit->data = bus;
+ bit->pre_xfer = nvkm_i2c_bus_pre_xfer;
+ bit->post_xfer = nvkm_i2c_bus_post_xfer;
+ bit->setscl = nvkm_i2c_bus_setscl;
+ bit->setsda = nvkm_i2c_bus_setsda;
+ bit->getscl = nvkm_i2c_bus_getscl;
+ bit->getsda = nvkm_i2c_bus_getsda;
+ bus->i2c.algo_data = bit;
+ ret = i2c_bit_add_bus(&bus->i2c);
+ } else {
+ bus->i2c.algo = &nvkm_i2c_bus_algo;
+ ret = i2c_add_adapter(&bus->i2c);
+ }
+
+ return ret;
+}
+
+int
+nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *func,
+ struct nvkm_i2c_pad *pad, int id,
+ struct nvkm_i2c_bus **pbus)
+{
+ if (!(*pbus = kzalloc(sizeof(**pbus), GFP_KERNEL)))
+ return -ENOMEM;
+ return nvkm_i2c_bus_ctor(func, pad, id, *pbus);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
new file mode 100644
index 000000000..4c236ab34
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_I2C_BUS_H__
+#define __NVKM_I2C_BUS_H__
+#include "pad.h"
+
+struct nvkm_i2c_bus_func {
+ void (*init)(struct nvkm_i2c_bus *);
+ void (*drive_scl)(struct nvkm_i2c_bus *, int state);
+ void (*drive_sda)(struct nvkm_i2c_bus *, int state);
+ int (*sense_scl)(struct nvkm_i2c_bus *);
+ int (*sense_sda)(struct nvkm_i2c_bus *);
+ int (*xfer)(struct nvkm_i2c_bus *, struct i2c_msg *, int num);
+};
+
+int nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *,
+ int id, struct nvkm_i2c_bus *);
+int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *,
+ int id, struct nvkm_i2c_bus **);
+void nvkm_i2c_bus_del(struct nvkm_i2c_bus **);
+void nvkm_i2c_bus_init(struct nvkm_i2c_bus *);
+void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *);
+
+int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int);
+
+int nv04_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, u8,
+ struct nvkm_i2c_bus **);
+
+int nv4e_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **);
+int nv50_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **);
+int gf119_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **);
+
+#define BUS_MSG(b,l,f,a...) do { \
+ struct nvkm_i2c_bus *_bus = (b); \
+ nvkm_##l(&_bus->pad->i2c->subdev, "bus %04x: "f"\n", _bus->id, ##a); \
+} while(0)
+#define BUS_ERR(b,f,a...) BUS_MSG((b), error, f, ##a)
+#define BUS_DBG(b,f,a...) BUS_MSG((b), debug, f, ##a)
+#define BUS_TRACE(b,f,a...) BUS_MSG((b), trace, f, ##a)
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c
new file mode 100644
index 000000000..96bbdda0f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define gf119_i2c_bus(p) container_of((p), struct gf119_i2c_bus, base)
+#include "bus.h"
+
+struct gf119_i2c_bus {
+ struct nvkm_i2c_bus base;
+ u32 addr;
+};
+
+static void
+gf119_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state)
+{
+ struct gf119_i2c_bus *bus = gf119_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ nvkm_mask(device, bus->addr, 0x00000001, state ? 0x00000001 : 0);
+}
+
+static void
+gf119_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state)
+{
+ struct gf119_i2c_bus *bus = gf119_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ nvkm_mask(device, bus->addr, 0x00000002, state ? 0x00000002 : 0);
+}
+
+static int
+gf119_i2c_bus_sense_scl(struct nvkm_i2c_bus *base)
+{
+ struct gf119_i2c_bus *bus = gf119_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rd32(device, bus->addr) & 0x00000010);
+}
+
+static int
+gf119_i2c_bus_sense_sda(struct nvkm_i2c_bus *base)
+{
+ struct gf119_i2c_bus *bus = gf119_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rd32(device, bus->addr) & 0x00000020);
+}
+
+static void
+gf119_i2c_bus_init(struct nvkm_i2c_bus *base)
+{
+ struct gf119_i2c_bus *bus = gf119_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ nvkm_wr32(device, bus->addr, 0x00000007);
+}
+
+static const struct nvkm_i2c_bus_func
+gf119_i2c_bus_func = {
+ .init = gf119_i2c_bus_init,
+ .drive_scl = gf119_i2c_bus_drive_scl,
+ .drive_sda = gf119_i2c_bus_drive_sda,
+ .sense_scl = gf119_i2c_bus_sense_scl,
+ .sense_sda = gf119_i2c_bus_sense_sda,
+ .xfer = nvkm_i2c_bit_xfer,
+};
+
+int
+gf119_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive,
+ struct nvkm_i2c_bus **pbus)
+{
+ struct gf119_i2c_bus *bus;
+
+ if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &bus->base;
+
+ nvkm_i2c_bus_ctor(&gf119_i2c_bus_func, pad, id, &bus->base);
+ bus->addr = 0x00d014 + (drive * 0x20);
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c
new file mode 100644
index 000000000..a58db1592
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define nv04_i2c_bus(p) container_of((p), struct nv04_i2c_bus, base)
+#include "bus.h"
+
+#include <subdev/vga.h>
+
+struct nv04_i2c_bus {
+ struct nvkm_i2c_bus base;
+ u8 drive;
+ u8 sense;
+};
+
+static void
+nv04_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state)
+{
+ struct nv04_i2c_bus *bus = nv04_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ u8 val = nvkm_rdvgac(device, 0, bus->drive);
+ if (state) val |= 0x20;
+ else val &= 0xdf;
+ nvkm_wrvgac(device, 0, bus->drive, val | 0x01);
+}
+
+static void
+nv04_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state)
+{
+ struct nv04_i2c_bus *bus = nv04_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ u8 val = nvkm_rdvgac(device, 0, bus->drive);
+ if (state) val |= 0x10;
+ else val &= 0xef;
+ nvkm_wrvgac(device, 0, bus->drive, val | 0x01);
+}
+
+static int
+nv04_i2c_bus_sense_scl(struct nvkm_i2c_bus *base)
+{
+ struct nv04_i2c_bus *bus = nv04_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rdvgac(device, 0, bus->sense) & 0x04);
+}
+
+static int
+nv04_i2c_bus_sense_sda(struct nvkm_i2c_bus *base)
+{
+ struct nv04_i2c_bus *bus = nv04_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rdvgac(device, 0, bus->sense) & 0x08);
+}
+
+static const struct nvkm_i2c_bus_func
+nv04_i2c_bus_func = {
+ .drive_scl = nv04_i2c_bus_drive_scl,
+ .drive_sda = nv04_i2c_bus_drive_sda,
+ .sense_scl = nv04_i2c_bus_sense_scl,
+ .sense_sda = nv04_i2c_bus_sense_sda,
+ .xfer = nvkm_i2c_bit_xfer,
+};
+
+int
+nv04_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive, u8 sense,
+ struct nvkm_i2c_bus **pbus)
+{
+ struct nv04_i2c_bus *bus;
+
+ if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &bus->base;
+
+ nvkm_i2c_bus_ctor(&nv04_i2c_bus_func, pad, id, &bus->base);
+ bus->drive = drive;
+ bus->sense = sense;
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c
new file mode 100644
index 000000000..cdd73dcb1
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define nv4e_i2c_bus(p) container_of((p), struct nv4e_i2c_bus, base)
+#include "bus.h"
+
+struct nv4e_i2c_bus {
+ struct nvkm_i2c_bus base;
+ u32 addr;
+};
+
+static void
+nv4e_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state)
+{
+ struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ nvkm_mask(device, bus->addr, 0x2f, state ? 0x21 : 0x01);
+}
+
+static void
+nv4e_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state)
+{
+ struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ nvkm_mask(device, bus->addr, 0x1f, state ? 0x11 : 0x01);
+}
+
+static int
+nv4e_i2c_bus_sense_scl(struct nvkm_i2c_bus *base)
+{
+ struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rd32(device, bus->addr) & 0x00040000);
+}
+
+static int
+nv4e_i2c_bus_sense_sda(struct nvkm_i2c_bus *base)
+{
+ struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rd32(device, bus->addr) & 0x00080000);
+}
+
+static const struct nvkm_i2c_bus_func
+nv4e_i2c_bus_func = {
+ .drive_scl = nv4e_i2c_bus_drive_scl,
+ .drive_sda = nv4e_i2c_bus_drive_sda,
+ .sense_scl = nv4e_i2c_bus_sense_scl,
+ .sense_sda = nv4e_i2c_bus_sense_sda,
+ .xfer = nvkm_i2c_bit_xfer,
+};
+
+int
+nv4e_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive,
+ struct nvkm_i2c_bus **pbus)
+{
+ struct nv4e_i2c_bus *bus;
+
+ if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &bus->base;
+
+ nvkm_i2c_bus_ctor(&nv4e_i2c_bus_func, pad, id, &bus->base);
+ bus->addr = 0x600800 + drive;
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c
new file mode 100644
index 000000000..8db839938
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial busions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#define nv50_i2c_bus(p) container_of((p), struct nv50_i2c_bus, base)
+#include "bus.h"
+
+#include <subdev/vga.h>
+
+struct nv50_i2c_bus {
+ struct nvkm_i2c_bus base;
+ u32 addr;
+ u32 data;
+};
+
+static void
+nv50_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state)
+{
+ struct nv50_i2c_bus *bus = nv50_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ if (state) bus->data |= 0x01;
+ else bus->data &= 0xfe;
+ nvkm_wr32(device, bus->addr, bus->data);
+}
+
+static void
+nv50_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state)
+{
+ struct nv50_i2c_bus *bus = nv50_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ if (state) bus->data |= 0x02;
+ else bus->data &= 0xfd;
+ nvkm_wr32(device, bus->addr, bus->data);
+}
+
+static int
+nv50_i2c_bus_sense_scl(struct nvkm_i2c_bus *base)
+{
+ struct nv50_i2c_bus *bus = nv50_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rd32(device, bus->addr) & 0x00000001);
+}
+
+static int
+nv50_i2c_bus_sense_sda(struct nvkm_i2c_bus *base)
+{
+ struct nv50_i2c_bus *bus = nv50_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ return !!(nvkm_rd32(device, bus->addr) & 0x00000002);
+}
+
+static void
+nv50_i2c_bus_init(struct nvkm_i2c_bus *base)
+{
+ struct nv50_i2c_bus *bus = nv50_i2c_bus(base);
+ struct nvkm_device *device = bus->base.pad->i2c->subdev.device;
+ nvkm_wr32(device, bus->addr, (bus->data = 0x00000007));
+}
+
+static const struct nvkm_i2c_bus_func
+nv50_i2c_bus_func = {
+ .init = nv50_i2c_bus_init,
+ .drive_scl = nv50_i2c_bus_drive_scl,
+ .drive_sda = nv50_i2c_bus_drive_sda,
+ .sense_scl = nv50_i2c_bus_sense_scl,
+ .sense_sda = nv50_i2c_bus_sense_sda,
+ .xfer = nvkm_i2c_bit_xfer,
+};
+
+int
+nv50_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive,
+ struct nvkm_i2c_bus **pbus)
+{
+ static const u32 addr[] = {
+ 0x00e138, 0x00e150, 0x00e168, 0x00e180,
+ 0x00e254, 0x00e274, 0x00e764, 0x00e780,
+ 0x00e79c, 0x00e7b8
+ };
+ struct nv50_i2c_bus *bus;
+
+ if (drive >= ARRAY_SIZE(addr)) {
+ nvkm_warn(&pad->i2c->subdev, "bus %d unknown\n", drive);
+ return -ENODEV;
+ }
+
+ if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &bus->base;
+
+ nvkm_i2c_bus_ctor(&nv50_i2c_bus_func, pad, id, &bus->base);
+ bus->addr = addr[drive];
+ bus->data = 0x00000007;
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c
new file mode 100644
index 000000000..e5bad085c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+void
+g94_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx)
+{
+ struct nvkm_device *device = i2c->subdev.device;
+ u32 intr = nvkm_rd32(device, 0x00e06c);
+ u32 stat = nvkm_rd32(device, 0x00e068) & intr, i;
+ for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) {
+ if ((stat & (1 << (i * 4)))) *hi |= 1 << i;
+ if ((stat & (2 << (i * 4)))) *lo |= 1 << i;
+ if ((stat & (4 << (i * 4)))) *rq |= 1 << i;
+ if ((stat & (8 << (i * 4)))) *tx |= 1 << i;
+ }
+ nvkm_wr32(device, 0x00e06c, intr);
+}
+
+void
+g94_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data)
+{
+ struct nvkm_device *device = i2c->subdev.device;
+ u32 temp = nvkm_rd32(device, 0x00e068), i;
+ for (i = 0; i < 8; i++) {
+ if (mask & (1 << i)) {
+ if (!(data & (1 << i))) {
+ temp &= ~(type << (i * 4));
+ continue;
+ }
+ temp |= type << (i * 4);
+ }
+ }
+ nvkm_wr32(device, 0x00e068, temp);
+}
+
+static const struct nvkm_i2c_func
+g94_i2c = {
+ .pad_x_new = g94_i2c_pad_x_new,
+ .pad_s_new = g94_i2c_pad_s_new,
+ .aux = 4,
+ .aux_stat = g94_aux_stat,
+ .aux_mask = g94_aux_mask,
+};
+
+int
+g94_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&g94_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c
new file mode 100644
index 000000000..cda30ee67
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+static const struct nvkm_i2c_func
+gf117_i2c = {
+ .pad_x_new = gf119_i2c_pad_x_new,
+};
+
+int
+gf117_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&gf117_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c
new file mode 100644
index 000000000..e9c6a6cca
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+static const struct nvkm_i2c_func
+gf119_i2c = {
+ .pad_x_new = gf119_i2c_pad_x_new,
+ .pad_s_new = gf119_i2c_pad_s_new,
+ .aux = 4,
+ .aux_stat = g94_aux_stat,
+ .aux_mask = g94_aux_mask,
+};
+
+int
+gf119_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&gf119_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c
new file mode 100644
index 000000000..d35aa6fe3
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+void
+gk104_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx)
+{
+ struct nvkm_device *device = i2c->subdev.device;
+ u32 intr = nvkm_rd32(device, 0x00dc60);
+ u32 stat = nvkm_rd32(device, 0x00dc68) & intr, i;
+ for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) {
+ if ((stat & (1 << (i * 4)))) *hi |= 1 << i;
+ if ((stat & (2 << (i * 4)))) *lo |= 1 << i;
+ if ((stat & (4 << (i * 4)))) *rq |= 1 << i;
+ if ((stat & (8 << (i * 4)))) *tx |= 1 << i;
+ }
+ nvkm_wr32(device, 0x00dc60, intr);
+}
+
+void
+gk104_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data)
+{
+ struct nvkm_device *device = i2c->subdev.device;
+ u32 temp = nvkm_rd32(device, 0x00dc68), i;
+ for (i = 0; i < 8; i++) {
+ if (mask & (1 << i)) {
+ if (!(data & (1 << i))) {
+ temp &= ~(type << (i * 4));
+ continue;
+ }
+ temp |= type << (i * 4);
+ }
+ }
+ nvkm_wr32(device, 0x00dc68, temp);
+}
+
+static const struct nvkm_i2c_func
+gk104_i2c = {
+ .pad_x_new = gf119_i2c_pad_x_new,
+ .pad_s_new = gf119_i2c_pad_s_new,
+ .aux = 4,
+ .aux_stat = gk104_aux_stat,
+ .aux_mask = gk104_aux_mask,
+};
+
+int
+gk104_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&gk104_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c
new file mode 100644
index 000000000..9fec6af56
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2021 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "priv.h"
+#include "pad.h"
+
+static void
+gk110_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable)
+{
+ nvkm_mask(i2c->subdev.device, 0x00e4f8 + (aux * 0x50), 0x00010000, enable << 16);
+}
+
+static const struct nvkm_i2c_func
+gk110_i2c = {
+ .pad_x_new = gf119_i2c_pad_x_new,
+ .pad_s_new = gf119_i2c_pad_s_new,
+ .aux = 4,
+ .aux_stat = gk104_aux_stat,
+ .aux_mask = gk104_aux_mask,
+ .aux_autodpcd = gk110_aux_autodpcd,
+};
+
+int
+gk110_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&gk110_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c
new file mode 100644
index 000000000..46917eb60
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+static void
+gm200_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable)
+{
+ nvkm_mask(i2c->subdev.device, 0x00d968 + (aux * 0x50), 0x00010000, enable << 16);
+}
+
+static const struct nvkm_i2c_func
+gm200_i2c = {
+ .pad_x_new = gf119_i2c_pad_x_new,
+ .pad_s_new = gm200_i2c_pad_s_new,
+ .aux = 8,
+ .aux_stat = gk104_aux_stat,
+ .aux_mask = gk104_aux_mask,
+ .aux_autodpcd = gm200_aux_autodpcd,
+};
+
+int
+gm200_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&gm200_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c
new file mode 100644
index 000000000..ecfcf147c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+static const struct nvkm_i2c_func
+nv04_i2c = {
+ .pad_x_new = nv04_i2c_pad_new,
+};
+
+int
+nv04_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&nv04_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c
new file mode 100644
index 000000000..ad1d3fd2b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+static const struct nvkm_i2c_func
+nv4e_i2c = {
+ .pad_x_new = nv4e_i2c_pad_new,
+};
+
+int
+nv4e_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&nv4e_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c
new file mode 100644
index 000000000..2f94bed2c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "pad.h"
+
+static const struct nvkm_i2c_func
+nv50_i2c = {
+ .pad_x_new = nv50_i2c_pad_new,
+};
+
+int
+nv50_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+ struct nvkm_i2c **pi2c)
+{
+ return nvkm_i2c_new_(&nv50_i2c, device, type, inst, pi2c);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c
new file mode 100644
index 000000000..2c5fcb9c5
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "pad.h"
+
+static void
+nvkm_i2c_pad_mode_locked(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode)
+{
+ PAD_TRACE(pad, "-> %s", (mode == NVKM_I2C_PAD_AUX) ? "aux" :
+ (mode == NVKM_I2C_PAD_I2C) ? "i2c" : "off");
+ if (pad->func->mode)
+ pad->func->mode(pad, mode);
+}
+
+void
+nvkm_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode)
+{
+ PAD_TRACE(pad, "mode %d", mode);
+ mutex_lock(&pad->mutex);
+ nvkm_i2c_pad_mode_locked(pad, mode);
+ pad->mode = mode;
+ mutex_unlock(&pad->mutex);
+}
+
+void
+nvkm_i2c_pad_release(struct nvkm_i2c_pad *pad)
+{
+ PAD_TRACE(pad, "release");
+ if (pad->mode == NVKM_I2C_PAD_OFF)
+ nvkm_i2c_pad_mode_locked(pad, pad->mode);
+ mutex_unlock(&pad->mutex);
+}
+
+int
+nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode)
+{
+ PAD_TRACE(pad, "acquire");
+ mutex_lock(&pad->mutex);
+ if (pad->mode != mode) {
+ if (pad->mode != NVKM_I2C_PAD_OFF) {
+ mutex_unlock(&pad->mutex);
+ return -EBUSY;
+ }
+ nvkm_i2c_pad_mode_locked(pad, mode);
+ }
+ return 0;
+}
+
+void
+nvkm_i2c_pad_fini(struct nvkm_i2c_pad *pad)
+{
+ PAD_TRACE(pad, "fini");
+ nvkm_i2c_pad_mode_locked(pad, NVKM_I2C_PAD_OFF);
+}
+
+void
+nvkm_i2c_pad_init(struct nvkm_i2c_pad *pad)
+{
+ PAD_TRACE(pad, "init");
+ nvkm_i2c_pad_mode_locked(pad, pad->mode);
+}
+
+void
+nvkm_i2c_pad_del(struct nvkm_i2c_pad **ppad)
+{
+ struct nvkm_i2c_pad *pad = *ppad;
+ if (pad) {
+ PAD_TRACE(pad, "dtor");
+ list_del(&pad->head);
+ kfree(pad);
+ pad = NULL;
+ }
+}
+
+void
+nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *func, struct nvkm_i2c *i2c,
+ int id, struct nvkm_i2c_pad *pad)
+{
+ pad->func = func;
+ pad->i2c = i2c;
+ pad->id = id;
+ pad->mode = NVKM_I2C_PAD_OFF;
+ mutex_init(&pad->mutex);
+ list_add_tail(&pad->head, &i2c->pad);
+ PAD_TRACE(pad, "ctor");
+}
+
+int
+nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *func, struct nvkm_i2c *i2c,
+ int id, struct nvkm_i2c_pad **ppad)
+{
+ if (!(*ppad = kzalloc(sizeof(**ppad), GFP_KERNEL)))
+ return -ENOMEM;
+ nvkm_i2c_pad_ctor(func, i2c, id, *ppad);
+ return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h
new file mode 100644
index 000000000..44b7bb7d4
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_I2C_PAD_H__
+#define __NVKM_I2C_PAD_H__
+#include "priv.h"
+
+struct nvkm_i2c_pad {
+ const struct nvkm_i2c_pad_func *func;
+ struct nvkm_i2c *i2c;
+#define NVKM_I2C_PAD_HYBRID(n) /* 'n' is hw pad index */ (n)
+#define NVKM_I2C_PAD_CCB(n) /* 'n' is ccb index */ ((n) + 0x100)
+#define NVKM_I2C_PAD_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x200)
+ int id;
+
+ enum nvkm_i2c_pad_mode {
+ NVKM_I2C_PAD_OFF,
+ NVKM_I2C_PAD_I2C,
+ NVKM_I2C_PAD_AUX,
+ } mode;
+ struct mutex mutex;
+ struct list_head head;
+};
+
+struct nvkm_i2c_pad_func {
+ int (*bus_new_0)(struct nvkm_i2c_pad *, int id, u8 drive, u8 sense,
+ struct nvkm_i2c_bus **);
+ int (*bus_new_4)(struct nvkm_i2c_pad *, int id, u8 drive,
+ struct nvkm_i2c_bus **);
+
+ int (*aux_new_6)(struct nvkm_i2c_pad *, int id, u8 drive,
+ struct nvkm_i2c_aux **);
+
+ void (*mode)(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
+};
+
+void nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
+ int id, struct nvkm_i2c_pad *);
+int nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *,
+ int id, struct nvkm_i2c_pad **);
+void nvkm_i2c_pad_del(struct nvkm_i2c_pad **);
+void nvkm_i2c_pad_init(struct nvkm_i2c_pad *);
+void nvkm_i2c_pad_fini(struct nvkm_i2c_pad *);
+void nvkm_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
+int nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
+void nvkm_i2c_pad_release(struct nvkm_i2c_pad *);
+
+void g94_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode);
+
+int nv04_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int nv4e_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int nv50_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int g94_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int gf119_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int gm200_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+
+int g94_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int gf119_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+int gm200_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **);
+
+int anx9805_pad_new(struct nvkm_i2c_bus *, int, u8, struct nvkm_i2c_pad **);
+
+#define PAD_MSG(p,l,f,a...) do { \
+ struct nvkm_i2c_pad *_pad = (p); \
+ nvkm_##l(&_pad->i2c->subdev, "pad %04x: "f"\n", _pad->id, ##a); \
+} while(0)
+#define PAD_ERR(p,f,a...) PAD_MSG((p), error, f, ##a)
+#define PAD_DBG(p,f,a...) PAD_MSG((p), debug, f, ##a)
+#define PAD_TRACE(p,f,a...) PAD_MSG((p), trace, f, ##a)
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c
new file mode 100644
index 000000000..5904bc5f2
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+#include "aux.h"
+#include "bus.h"
+
+void
+g94_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode)
+{
+ struct nvkm_subdev *subdev = &pad->i2c->subdev;
+ struct nvkm_device *device = subdev->device;
+ const u32 base = (pad->id - NVKM_I2C_PAD_HYBRID(0)) * 0x50;
+
+ switch (mode) {
+ case NVKM_I2C_PAD_OFF:
+ nvkm_mask(device, 0x00e50c + base, 0x00000001, 0x00000001);
+ break;
+ case NVKM_I2C_PAD_I2C:
+ nvkm_mask(device, 0x00e500 + base, 0x0000c003, 0x0000c001);
+ nvkm_mask(device, 0x00e50c + base, 0x00000001, 0x00000000);
+ break;
+ case NVKM_I2C_PAD_AUX:
+ nvkm_mask(device, 0x00e500 + base, 0x0000c003, 0x00000002);
+ nvkm_mask(device, 0x00e50c + base, 0x00000001, 0x00000000);
+ break;
+ default:
+ WARN_ON(1);
+ break;
+ }
+}
+
+static const struct nvkm_i2c_pad_func
+g94_i2c_pad_s_func = {
+ .bus_new_4 = nv50_i2c_bus_new,
+ .aux_new_6 = g94_i2c_aux_new,
+ .mode = g94_i2c_pad_mode,
+};
+
+int
+g94_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&g94_i2c_pad_s_func, i2c, id, ppad);
+}
+
+static const struct nvkm_i2c_pad_func
+g94_i2c_pad_x_func = {
+ .bus_new_4 = nv50_i2c_bus_new,
+ .aux_new_6 = g94_i2c_aux_new,
+};
+
+int
+g94_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&g94_i2c_pad_x_func, i2c, id, ppad);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c
new file mode 100644
index 000000000..3bc4d0310
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+#include "aux.h"
+#include "bus.h"
+
+static const struct nvkm_i2c_pad_func
+gf119_i2c_pad_s_func = {
+ .bus_new_4 = gf119_i2c_bus_new,
+ .aux_new_6 = gf119_i2c_aux_new,
+ .mode = g94_i2c_pad_mode,
+};
+
+int
+gf119_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&gf119_i2c_pad_s_func, i2c, id, ppad);
+}
+
+static const struct nvkm_i2c_pad_func
+gf119_i2c_pad_x_func = {
+ .bus_new_4 = gf119_i2c_bus_new,
+ .aux_new_6 = gf119_i2c_aux_new,
+};
+
+int
+gf119_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&gf119_i2c_pad_x_func, i2c, id, ppad);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c
new file mode 100644
index 000000000..7d417f6a8
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+#include "aux.h"
+#include "bus.h"
+
+static void
+gm200_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode)
+{
+ struct nvkm_subdev *subdev = &pad->i2c->subdev;
+ struct nvkm_device *device = subdev->device;
+ const u32 base = (pad->id - NVKM_I2C_PAD_HYBRID(0)) * 0x50;
+
+ switch (mode) {
+ case NVKM_I2C_PAD_OFF:
+ nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000001);
+ break;
+ case NVKM_I2C_PAD_I2C:
+ nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x0000c001);
+ nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000);
+ break;
+ case NVKM_I2C_PAD_AUX:
+ nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x00000002);
+ nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000);
+ break;
+ default:
+ WARN_ON(1);
+ break;
+ }
+}
+
+static const struct nvkm_i2c_pad_func
+gm200_i2c_pad_s_func = {
+ .bus_new_4 = gf119_i2c_bus_new,
+ .aux_new_6 = gm200_i2c_aux_new,
+ .mode = gm200_i2c_pad_mode,
+};
+
+int
+gm200_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&gm200_i2c_pad_s_func, i2c, id, ppad);
+}
+
+static const struct nvkm_i2c_pad_func
+gm200_i2c_pad_x_func = {
+ .bus_new_4 = gf119_i2c_bus_new,
+ .aux_new_6 = gm200_i2c_aux_new,
+};
+
+int
+gm200_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&gm200_i2c_pad_x_func, i2c, id, ppad);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c
new file mode 100644
index 000000000..310046ad9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+#include "bus.h"
+
+static const struct nvkm_i2c_pad_func
+nv04_i2c_pad_func = {
+ .bus_new_0 = nv04_i2c_bus_new,
+};
+
+int
+nv04_i2c_pad_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&nv04_i2c_pad_func, i2c, id, ppad);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c
new file mode 100644
index 000000000..dda6fc0b0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+#include "bus.h"
+
+static const struct nvkm_i2c_pad_func
+nv4e_i2c_pad_func = {
+ .bus_new_4 = nv4e_i2c_bus_new,
+};
+
+int
+nv4e_i2c_pad_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&nv4e_i2c_pad_func, i2c, id, ppad);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c
new file mode 100644
index 000000000..a03f25b19
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "pad.h"
+#include "bus.h"
+
+static const struct nvkm_i2c_pad_func
+nv50_i2c_pad_func = {
+ .bus_new_4 = nv50_i2c_bus_new,
+};
+
+int
+nv50_i2c_pad_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad)
+{
+ return nvkm_i2c_pad_new_(&nv50_i2c_pad_func, i2c, id, ppad);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h
new file mode 100644
index 000000000..f9d79f72f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NVKM_I2C_PRIV_H__
+#define __NVKM_I2C_PRIV_H__
+#define nvkm_i2c(p) container_of((p), struct nvkm_i2c, subdev)
+#include <subdev/i2c.h>
+
+int nvkm_i2c_new_(const struct nvkm_i2c_func *, struct nvkm_device *, enum nvkm_subdev_type, int,
+ struct nvkm_i2c **);
+
+struct nvkm_i2c_func {
+ int (*pad_x_new)(struct nvkm_i2c *, int id, struct nvkm_i2c_pad **);
+ int (*pad_s_new)(struct nvkm_i2c *, int id, struct nvkm_i2c_pad **);
+
+ /* number of native dp aux channels present */
+ int aux;
+
+ /* read and ack pending interrupts, returning only data
+ * for ports that have not been masked off, while still
+ * performing the ack for anything that was pending.
+ */
+ void (*aux_stat)(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *);
+
+ /* mask on/off interrupt types for a given set of auxch
+ */
+ void (*aux_mask)(struct nvkm_i2c *, u32, u32, u32);
+
+ /* enable/disable HW-initiated DPCD reads
+ */
+ void (*aux_autodpcd)(struct nvkm_i2c *, int aux, bool enable);
+};
+
+void g94_aux_stat(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *);
+void g94_aux_mask(struct nvkm_i2c *, u32, u32, u32);
+
+void gk104_aux_stat(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *);
+void gk104_aux_mask(struct nvkm_i2c *, u32, u32, u32);
+#endif