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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-10-22 22:56:43 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-10-22 22:56:43 +0200 |
| commit | 397fe15715ef1457d89f52666d0e249eb5eae64c (patch) | |
| tree | 7948bc52fa7ac208ddf2d1261e5c485dbb25ae52 /include/drm | |
| parent | drm: extract dp link bw helpers (diff) | |
| download | linux-dev-397fe15715ef1457d89f52666d0e249eb5eae64c.tar.xz linux-dev-397fe15715ef1457d89f52666d0e249eb5eae64c.zip | |
drm: extract drm_dp_max_lane_count helper
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 455f8e05ca3f..c09d36741c94 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -346,4 +346,11 @@ drm_dp_max_link_rate(u8 dpcd[DP_RECEIVER_CAP_SIZE]) { return drm_dp_bw_code_to_link_rate(dpcd[DP_MAX_LINK_RATE]); } + +static inline u8 +drm_dp_max_lane_count(u8 dpcd[DP_RECEIVER_CAP_SIZE]) +{ + return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; +} + #endif /* _DRM_DP_HELPER_H_ */ |