On Sat, Mar 5, 2016 at 8:39 PM, Mario Kleiner
<mario.kleiner.de@xxxxxxxxx> 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@xxxxxxxxx>
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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