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authorAlex Deucher <alexander.deucher@amd.com>2015-10-27 10:56:44 -0400
committerAlex Deucher <alexander.deucher@amd.com>2015-10-29 11:13:40 -0400
commitae93580ee59c02395c1711d3e6b90546b8137b86 (patch)
tree027cda0bac22dfd80c2f865f225d5c297ae387c0
parent4cee6a9057d5e13911f0cb6e143d11dc1a3245dd (diff)
downloadlinux-stericsson-ae93580ee59c02395c1711d3e6b90546b8137b86.tar.gz
drm/radeon: fix dpms when driver backlight control is disabled
If driver backlight control is disabled, either by driver parameter or default per-asic setting, revert to the old behavior. Fixes a regression in commit: 4281f46ef839050d2ef60348f661eb463c21cc2e Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
-rw-r--r--drivers/gpu/drm/radeon/atombios_encoders.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 933fd1bc849b..bb292143997e 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1625,9 +1625,14 @@ radeon_atom_encoder_dpms_avivo(struct drm_encoder *encoder, int mode)
} else
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
- struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+ if (rdev->mode_info.bl_encoder) {
+ struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
- atombios_set_backlight_level(radeon_encoder, dig->backlight_level);
+ atombios_set_backlight_level(radeon_encoder, dig->backlight_level);
+ } else {
+ args.ucAction = ATOM_LCD_BLON;
+ atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+ }
}
break;
case DRM_MODE_DPMS_STANDBY:
@@ -1707,8 +1712,13 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
if (ASIC_IS_DCE4(rdev))
atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_ON, 0);
}
- if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
- atombios_set_backlight_level(radeon_encoder, dig->backlight_level);
+ if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
+ if (rdev->mode_info.bl_encoder)
+ atombios_set_backlight_level(radeon_encoder, dig->backlight_level);
+ else
+ atombios_dig_transmitter_setup(encoder,
+ ATOM_TRANSMITTER_ACTION_LCD_BLON, 0, 0);
+ }
if (ext_encoder)
atombios_external_encoder_setup(encoder, ext_encoder, ATOM_ENABLE);
break;