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drm/radeon: rework the backlight control to be an asic callback

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This cleans up the interface a bit as well.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2012-08-03 11:39:43 -04:00
parent e3a1592085
commit 37e9b6a62f
7 changed files with 84 additions and 33 deletions
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15
drivers/gpu/drm/radeon/atombios_encoders.c
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@@ -73,7 +73,7 @@ radeon_atom_set_backlight_level_to_reg(struct radeon_device *rdev,
}
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 @@ atombios_set_panel_brightness(struct radeon_encoder *radeon_encoder)
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 @@ static int radeon_atom_backlight_update_status(struct backlight_device *bd)
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;
}