On Sat, Mar 5, 2016 at 8:39 PM, Mario Kleiner mario.kleiner.de@gmail.com wrote:
As observed on Apple iMac10,1, DCE-3.2, RV-730, link rate of 2.7 Ghz is not selected, because the args.v1.ucConfig flag setting for 2.7 Ghz gets overwritten by a following assignment of the transmitter to use.
Move link rate setup a few lines down to fix this. In practice this didn't have any positive or negative effect on display setup on the tested iMac10,1 so i don't know if backporting to stable makes sense or not.
Signed-off-by: Mario Kleiner mario.kleiner.de@gmail.com
Applied, and yes, this should go to stable.
Thanks!
Alex
drivers/gpu/drm/radeon/atombios_encoders.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index a28377c..dc1e810 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -892,8 +892,6 @@ atombios_dig_encoder_setup2(struct drm_encoder *encoder, int action, int panel_m else args.v1.ucLaneNum = 4;
if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode) && (dp_clock == 270000))args.v1.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ; switch (radeon_encoder->encoder_id) { case ENCODER_OBJECT_ID_INTERNAL_UNIPHY: args.v1.ucConfig = ATOM_ENCODER_CONFIG_V2_TRANSMITTER1;@@ -910,6 +908,10 @@ atombios_dig_encoder_setup2(struct drm_encoder *encoder, int action, int panel_m args.v1.ucConfig |= ATOM_ENCODER_CONFIG_LINKB; else args.v1.ucConfig |= ATOM_ENCODER_CONFIG_LINKA;
if (ENCODER_MODE_IS_DP(args.v1.ucEncoderMode) && (dp_clock == 270000))args.v1.ucConfig |= ATOM_ENCODER_CONFIG_DPLINKRATE_2_70GHZ;break; case 2: case 3:-- 2.7.0
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