asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

drm/tegra: sor - Enable only the necessary number of lanes

Browse source 
Instead of always enabling all four lanes, enable only the number probed
from the link.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2014-06-05 16:29:46 +02:00
parent 899451b787
commit 0c90a18466
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/tegra/sor.c
View file

@ -656,7 +656,7 @@ static int tegra_output_sor_enable(struct tegra_output *output)
value = tegra_sor_readl(sor, SOR_DP_LINKCTL_0);
value &= ~SOR_DP_LINKCTL_LANE_COUNT_MASK;
value |= SOR_DP_LINKCTL_LANE_COUNT(4);
value |= SOR_DP_LINKCTL_LANE_COUNT(link.num_lanes);
tegra_sor_writel(sor, value, SOR_DP_LINKCTL_0);
/* start lane sequencer */