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drm/tegra: dp: Read eDP version from DPCD

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If the sink supports eDP, read the eDP revision from it's DPCD.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2015-07-07 20:59:22 +02:00
parent 4ff9ba5674
commit 7aa3cc540d
2 changed files with 18 additions and 2 deletions
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2
drivers/gpu/drm/tegra/dp.h
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@@ -60,6 +60,7 @@ void drm_dp_link_caps_copy(struct drm_dp_link_caps *dest,
* @max_rate: maximum clock rate supported on the link
* @max_lanes: maximum number of lanes supported on the link
* @caps: capabilities supported on the link (see &drm_dp_link_caps)
* @edp: eDP revision (0x11: eDP 1.1, 0x12: eDP 1.2, ...)
* @rate: currently configured link rate
* @lanes: currently configured number of lanes
*/
@@ -69,6 +70,7 @@ struct drm_dp_link {
unsigned int max_lanes;
struct drm_dp_link_caps caps;
unsigned char edp;
unsigned int rate;
unsigned int lanes;