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| author | Alex Deucher <alexander.deucher@amd.com> | 2015-10-27 10:56:44 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-10-29 11:13:40 -0400 |
| commit | ae93580ee59c02395c1711d3e6b90546b8137b86 (patch) | |
| tree | 027cda0bac22dfd80c2f865f225d5c297ae387c0 | |
| parent | 4cee6a9057d5e13911f0cb6e143d11dc1a3245dd (diff) | |
| download | linux-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.c | 18 |
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; |