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authorMika Kahola <mika.kahola@intel.com>2016-09-09 14:10:50 +0300
committerJani Nikula <jani.nikula@intel.com>2016-09-15 14:50:01 +0300
commit7529d6af1cd16b0ecd286a1bf6ceee5328ab9809 (patch)
treed20ab3af9417ae038fec481715d2e96f7c635157 /include/drm
parent1c29bd3d6011bed4cbae215571f6f4c25ab10012 (diff)
downloadlinux-7529d6af1cd16b0ecd286a1bf6ceee5328ab9809.tar.bz2
drm: Helper to read max bits per component
Helper routine to read out maximum supported bits per component for DisplayPort legay converters. v2: Return early if detailed port cap info is not available. Replace if-else ladder with switch-case (Ville) Reviewed-by: Jim Bride <jim.bride@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1473419458-17080-5-git-send-email-mika.kahola@intel.com
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_dp_helper.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 60dd9dca4ce2..f3d14240338e 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -817,6 +817,8 @@ int drm_dp_link_power_down(struct drm_dp_aux *aux, struct drm_dp_link *link);
int drm_dp_link_configure(struct drm_dp_aux *aux, struct drm_dp_link *link);
int drm_dp_downstream_max_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
const u8 port_cap[4]);
+int drm_dp_downstream_max_bpc(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+ const u8 port_cap[4]);
void drm_dp_aux_init(struct drm_dp_aux *aux);
int drm_dp_aux_register(struct drm_dp_aux *aux);