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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c76
1 files changed, 76 insertions, 0 deletions
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);
+}