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authorMark Menzynski <mmenzyns@redhat.com>2019-07-18 11:07:41 +0300
committerBen Skeggs <bskeggs@redhat.com>2019-08-23 05:55:34 +0300
commit3c978f73959c295ac737b917795926534a7aea01 (patch)
tree48021cb0b45cbc8705176636b59e446d0227a8c2 /drivers/gpu/drm/nouveau
parent940794b3dd343ba86a4c50f7e6db285c0a9c8776 (diff)
downloadlinux-3c978f73959c295ac737b917795926534a7aea01.tar.xz
drm/nouveau/gpio: check function 76 in the power check as well
Added GPIO is "Power Alert". It's uncertain if this GPIO is set on GPU initialization or only if a change is detected by the GPU at runtime. This GPIO can be found on Tesla and sometimes on Fermi GPUs. Untested, wrote according to documentation. Signed-off-by: Mark Menzynski <mmenzyns@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h1
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h
index f454bbd29a7a..3f785f29dfac 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h
@@ -8,6 +8,7 @@ enum dcb_gpio_func_name {
DCB_GPIO_THERM_EXT_POWER_EVENT = 0x10,
DCB_GPIO_TVDAC1 = 0x2d,
DCB_GPIO_FAN_SENSE = 0x3d,
+ DCB_GPIO_POWER_ALERT = 0x4c,
DCB_GPIO_EXT_POWER_LOW = 0x79,
DCB_GPIO_LOGO_LED_PWM = 0x84,
DCB_GPIO_UNUSED = 0xff,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
index 2aa809ce7ff3..914276410ef8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
@@ -185,6 +185,7 @@ static const struct dmi_system_id gpio_reset_ids[] = {
static enum dcb_gpio_func_name power_checks[] = {
DCB_GPIO_THERM_EXT_POWER_EVENT,
+ DCB_GPIO_POWER_ALERT,
DCB_GPIO_EXT_POWER_LOW,
};