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[08/12] drm/dp: add max number of lanes supported

Message ID 1530612152-27555-9-git-send-email-dkos@cadence.com (mailing list archive)
State New, archived
Headers show

Commit Message

Damian Kos July 3, 2018, 10:02 a.m. UTC 
From: Quentin Schulz <quentin.schulz@free-electrons.com>

Currently, a maximum of 4 lanes is supported in DP.

It can be useful to add this maximum so that we can e.g. create arrays
in drivers that can store data for several lanes (e.g.
DP_TRAINING_LANEx_SET).

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Damian Kos <dkos@cadence.com>
---
 include/drm/drm_dp_helper.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index a63a548..accefbb 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -69,6 +69,7 @@ 
 
 #define DP_MAX_LANE_COUNT                   0x002
 # define DP_MAX_LANE_COUNT_MASK		    0x1f
+# define DP_MAX_NUM_LANES		    4
 # define DP_TPS3_SUPPORTED		    (1 << 6) /* 1.2 */
 # define DP_ENHANCED_FRAME_CAP		    (1 << 7)