drm/radeon: rework the backlight control to be an asic callback
This cleans up the interface a bit as well.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 370b2c4..f9910f0 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -73,7 +73,7 @@
}
void
-atombios_set_panel_brightness(struct radeon_encoder *radeon_encoder)
+atombios_set_backlight_level(struct radeon_encoder *radeon_encoder, u8 level)
{
struct drm_encoder *encoder = &radeon_encoder->base;
struct drm_device *dev = radeon_encoder->base.dev;
@@ -82,8 +82,13 @@
DISPLAY_DEVICE_OUTPUT_CONTROL_PS_ALLOCATION args;
int index;
- if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
+ if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU))
+ return;
+
+ if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) &&
+ radeon_encoder->enc_priv) {
dig = radeon_encoder->enc_priv;
+ dig->backlight_level = level;
radeon_atom_set_backlight_level_to_reg(rdev, dig->backlight_level);
switch (radeon_encoder->encoder_id) {
@@ -137,11 +142,7 @@
struct radeon_backlight_privdata *pdata = bl_get_data(bd);
struct radeon_encoder *radeon_encoder = pdata->encoder;
- if (radeon_encoder->enc_priv) {
- struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
- dig->backlight_level = radeon_atom_bl_level(bd);
- atombios_set_panel_brightness(radeon_encoder);
- }
+ atombios_set_backlight_level(radeon_encoder, radeon_atom_bl_level(bd));
return 0;
}