diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 15070bff27fa..e5efae695559 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3415,22 +3415,37 @@ static int amdgpu_dm_backlight_update_status(struct backlight_device *bd) { struct amdgpu_display_manager *dm = bl_get_data(bd); struct amdgpu_dm_backlight_caps caps; - struct dc_link *link = NULL; + struct dc_link *link[AMDGPU_DM_MAX_NUM_EDP]; u32 brightness; bool rc; + int i; amdgpu_dm_update_backlight_caps(dm); caps = dm->backlight_caps; - link = (struct dc_link *)dm->backlight_link; + for (i = 0; i < dm->num_of_edps; i++) + link[i] = (struct dc_link *)dm->backlight_link[i]; brightness = convert_brightness_from_user(&caps, bd->props.brightness); // Change brightness based on AUX property - if (caps.aux_support) - rc = dc_link_set_backlight_level_nits(link, true, brightness, - AUX_BL_DEFAULT_TRANSITION_TIME_MS); - else - rc = dc_link_set_backlight_level(dm->backlight_link, brightness, 0); + if (caps.aux_support) { + for (i = 0; i < dm->num_of_edps; i++) { + rc = dc_link_set_backlight_level_nits(link[i], true, brightness, + AUX_BL_DEFAULT_TRANSITION_TIME_MS); + if (!rc) { + DRM_ERROR("DM: Failed to update backlight via AUX on eDP[%d]\n", i); + break; + } + } + } else { + for (i = 0; i < dm->num_of_edps; i++) { + rc = dc_link_set_backlight_level(dm->backlight_link[i], brightness, 0); + if (!rc) { + DRM_ERROR("DM: Failed to update backlight on eDP[%d]\n", i); + break; + } + } + } return rc ? 0 : 1; } @@ -3444,7 +3459,7 @@ static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd) caps = dm->backlight_caps; if (caps.aux_support) { - struct dc_link *link = (struct dc_link *)dm->backlight_link; + struct dc_link *link = (struct dc_link *)dm->backlight_link[0]; u32 avg, peak; bool rc; @@ -3453,7 +3468,7 @@ static int amdgpu_dm_backlight_get_brightness(struct backlight_device *bd) return bd->props.brightness; return convert_brightness_to_user(&caps, avg); } else { - int ret = dc_link_get_backlight_level(dm->backlight_link); + int ret = dc_link_get_backlight_level(dm->backlight_link[0]); if (ret == DC_ERROR_UNEXPECTED) return bd->props.brightness; @@ -3550,10 +3565,13 @@ static void register_backlight_device(struct amdgpu_display_manager *dm, * DM initialization because not having a backlight control * is better then a black screen. */ - amdgpu_dm_register_backlight_device(dm); + if (!dm->backlight_dev) + amdgpu_dm_register_backlight_device(dm); - if (dm->backlight_dev) - dm->backlight_link = link; + if (dm->backlight_dev) { + dm->backlight_link[dm->num_of_edps] = link; + dm->num_of_edps++; + } } #endif } |