diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-07-26 19:32:03 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-09-20 21:10:35 +0400 |
| commit | f3728734ba78310525bf4a361c7787c7c6fa5d40 (patch) | |
| tree | 8bb27dccaa73799497bb430d6554929a825e2e06 /drivers/gpu/drm/radeon/radeon_encoders.c | |
| parent | 910308802c528f8afe864b694d5456fedd0bb18f (diff) | |
| download | linux-f3728734ba78310525bf4a361c7787c7c6fa5d40.tar.xz | |
drm/radeon: add backlight control for atom devices (v2)
On systems that use the build in GPU backlight controller,
we can use atom tables to change the brightness level.
v2: use firmware flags
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_encoders.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_encoders.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 74670696277d..93b0d64b3f6d 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -29,6 +29,14 @@ #include "radeon.h" #include "atom.h" +extern void +radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, + struct drm_connector *drm_connector); +extern void +radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder, + struct drm_connector *drm_connector); + + static uint32_t radeon_encoder_clones(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; @@ -153,6 +161,7 @@ radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device, uint8 void radeon_link_encoder_connector(struct drm_device *dev) { + struct radeon_device *rdev = dev->dev_private; struct drm_connector *connector; struct radeon_connector *radeon_connector; struct drm_encoder *encoder; @@ -163,8 +172,15 @@ radeon_link_encoder_connector(struct drm_device *dev) radeon_connector = to_radeon_connector(connector); list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { radeon_encoder = to_radeon_encoder(encoder); - if (radeon_encoder->devices & radeon_connector->devices) + if (radeon_encoder->devices & radeon_connector->devices) { drm_mode_connector_attach_encoder(connector, encoder); + if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { + if (rdev->is_atom_bios) + radeon_atom_backlight_init(radeon_encoder, connector); + else + radeon_legacy_backlight_init(radeon_encoder, connector); + } + } } } } |