diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-05-28 00:40:51 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-02 18:25:15 +0400 |
| commit | 642528355c694f5ed68f6bff9ff520326a249f99 (patch) | |
| tree | dcd172736f3bb967238cf08786b31e13644b98d9 /drivers/gpu | |
| parent | 3d7938faf3d7a792c11fcd11abbffdb18dfd6ee2 (diff) | |
| download | linux-642528355c694f5ed68f6bff9ff520326a249f99.tar.xz | |
drm/radeon/atom: fix dithering on certain panels
We need to specify the encoder mode as LVDS for eDP
when using the Crtc_Source atom table in order to properly
set up the FMT hardware.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73911
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_encoders.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index e6eb5097597f..2b2908440644 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1884,8 +1884,11 @@ atombios_set_encoder_crtc_source(struct drm_encoder *encoder) args.v2.ucEncodeMode = ATOM_ENCODER_MODE_CRT; else args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder); - } else + } else if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { + args.v2.ucEncodeMode = ATOM_ENCODER_MODE_LVDS; + } else { args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder); + } switch (radeon_encoder->encoder_id) { case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1: |