1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/g94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/g94.c
new file mode 100644
index 000000000..114728ccd
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/g94.c
@@ -0,0 +1,75 @@
+/*
+ * 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"
+
+void
+g94_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo)
+{
+	struct nvkm_device *device = gpio->subdev.device;
+	u32 intr0 = nvkm_rd32(device, 0x00e054);
+	u32 intr1 = nvkm_rd32(device, 0x00e074);
+	u32 stat0 = nvkm_rd32(device, 0x00e050) & intr0;
+	u32 stat1 = nvkm_rd32(device, 0x00e070) & intr1;
+	*lo = (stat1 & 0xffff0000) | (stat0 >> 16);
+	*hi = (stat1 << 16) | (stat0 & 0x0000ffff);
+	nvkm_wr32(device, 0x00e054, intr0);
+	nvkm_wr32(device, 0x00e074, intr1);
+}
+
+void
+g94_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data)
+{
+	struct nvkm_device *device = gpio->subdev.device;
+	u32 inte0 = nvkm_rd32(device, 0x00e050);
+	u32 inte1 = nvkm_rd32(device, 0x00e070);
+	if (type & NVKM_GPIO_LO)
+		inte0 = (inte0 & ~(mask << 16)) | (data << 16);
+	if (type & NVKM_GPIO_HI)
+		inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);
+	mask >>= 16;
+	data >>= 16;
+	if (type & NVKM_GPIO_LO)
+		inte1 = (inte1 & ~(mask << 16)) | (data << 16);
+	if (type & NVKM_GPIO_HI)
+		inte1 = (inte1 & ~mask) | data;
+	nvkm_wr32(device, 0x00e050, inte0);
+	nvkm_wr32(device, 0x00e070, inte1);
+}
+
+static const struct nvkm_gpio_func
+g94_gpio = {
+	.lines = 32,
+	.intr_stat = g94_gpio_intr_stat,
+	.intr_mask = g94_gpio_intr_mask,
+	.drive = nv50_gpio_drive,
+	.sense = nv50_gpio_sense,
+	.reset = nv50_gpio_reset,
+};
+
+int
+g94_gpio_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
+	     struct nvkm_gpio **pgpio)
+{
+	return nvkm_gpio_new_(&g94_gpio, device, type, inst, pgpio);
+}