diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c | 30 |
2 files changed, 31 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 3f74b2726cf2..d036cdc45201 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h @@ -7,6 +7,7 @@ enum dcb_gpio_func_name { DCB_GPIO_TVDAC0 = 0x0c, DCB_GPIO_TVDAC1 = 0x2d, DCB_GPIO_FAN_SENSE = 0x3d, + DCB_GPIO_EXT_POWER_LOW = 0x79, DCB_GPIO_LOGO_LED_PWM = 0x84, DCB_GPIO_UNUSED = 0xff, DCB_GPIO_VID0 = 0x04, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c index 1399d923d446..1337a110c0e3 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c @@ -23,6 +23,7 @@ */ #include "priv.h" +#include <core/option.h> #include <core/notify.h> static int @@ -182,12 +183,41 @@ static const struct dmi_system_id gpio_reset_ids[] = { { } }; +static enum dcb_gpio_func_name power_checks[] = { + DCB_GPIO_EXT_POWER_LOW, +}; + static int nvkm_gpio_init(struct nvkm_subdev *subdev) { struct nvkm_gpio *gpio = nvkm_gpio(subdev); + struct dcb_gpio_func func; + int ret; + int i; + if (dmi_check_system(gpio_reset_ids)) nvkm_gpio_reset(gpio, DCB_GPIO_UNUSED); + + if (nvkm_boolopt(subdev->device->cfgopt, "NvPowerChecks", true)) { + for (i = 0; i < ARRAY_SIZE(power_checks); ++i) { + ret = nvkm_gpio_find(gpio, 0, power_checks[i], + DCB_GPIO_UNUSED, &func); + if (ret) + continue; + + ret = nvkm_gpio_get(gpio, 0, func.func, func.line); + if (!ret) + continue; + + nvkm_error(&gpio->subdev, + "GPU is missing power, check its power " + "cables. Boot with " + "nouveau.config=NvPowerChecks=0 to " + "disable.\n"); + return -EINVAL; + } + } + return 0; } |
