summaryrefslogtreecommitdiff
path: root/include/drm
diff options
context:
space:
mode:
authorMika Kahola <mika.kahola@intel.com>2016-09-09 14:10:53 +0300
committerJani Nikula <jani.nikula@intel.com>2016-09-15 14:50:27 +0300
commit0e390a33a668f97ea3ffa7c6ceb4266e1b39450a (patch)
treecf9c192cf4f35952d10488b4a087d6bc5d07e1df /include/drm
parentb633958587ddd47fd9fe3d0d34d51f769b51d77b (diff)
drm/i915: Read DP branch device HW revision
HW revision is mandatory field for DisplayPort branch devices. This is defined in DPCD register field 0x509. v2: move drm_dp_ds_revision structure to be part of drm_dp_link structure (Daniel) v3: remove dependency to drm_dp_helper but instead parse DPCD and print HW revision info to dmesg (Ville) Reviewed-by: Jim Bride <jim.bride@linux.intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1473419458-17080-8-git-send-email-mika.kahola@intel.com
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_dp_helper.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index faea76bec514..19ac59984df0 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -446,6 +446,7 @@
#define DP_SINK_OUI 0x400
#define DP_BRANCH_OUI 0x500
#define DP_BRANCH_ID 0x503
+#define DP_BRANCH_HW_REV 0x509
#define DP_SET_POWER 0x600
# define DP_SET_POWER_D0 0x1