diff options
| author | Kuogee Hsieh <khsieh@codeaurora.org> | 2020-09-11 20:36:42 +0000 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2020-09-15 10:54:34 -0700 |
| commit | 8ede2ecc3e5ee327923f6e3cfe52761ce73607d1 (patch) | |
| tree | 2c36060e4f032d16e90e1480f790c359b06f5350 /drivers/gpu/drm/msm/dp/dp_drm.c | |
| parent | 220b856a3d3742a22831cb6cd94e48133a58d30e (diff) | |
| download | linux-8ede2ecc3e5ee327923f6e3cfe52761ce73607d1.tar.gz | |
drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets
add event thread to execute events serially from event queue. Also
timeout mode is supported which allow an event be deferred to be
executed at later time. Both link and phy compliant tests had been
done successfully.
Changes in v2:
-- Fix potential deadlock by removing redundant connect_mutex
-- Check and enable link clock during modeset
-- Drop unused code and fix function prototypes.
-- set sink power to normal operation state (D0) before DPCD read
Changes in v3:
-- push idle pattern at main link before timing generator off
-- add timeout handles for both connect and disconnect
Changes in v4:
-- add ST_SUSPEND_PENDING to handles suspend/modeset test operations
-- clear dp phy aux interrupt status when ERR_DPPHY_AUX error
-- send segment addr during edid read
-- clear bpp depth before MISC register write
Changes in v5:
-- add ST_SUSPENDED to fix crash at resume
Changes in v6:
-- at msm_dp_display_enable() do not return until resume_done to avoid
kms commit timeout
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_drm.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_drm.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_drm.c b/drivers/gpu/drm/msm/dp/dp_drm.c index e58906f4ae1e..764f4b81017e 100644 --- a/drivers/gpu/drm/msm/dp/dp_drm.c +++ b/drivers/gpu/drm/msm/dp/dp_drm.c @@ -58,7 +58,6 @@ static int dp_connector_get_modes(struct drm_connector *connector) if (!dp_mode) return 0; - mutex_lock(&dp->connect_mutex); /* pluggable case assumes EDID is read when HPD */ if (dp->is_connected) { /* @@ -71,7 +70,6 @@ static int dp_connector_get_modes(struct drm_connector *connector) if (rc <= 0) { DRM_ERROR("failed to get DP sink modes, rc=%d\n", rc); kfree(dp_mode); - mutex_unlock(&dp->connect_mutex); return rc; } if (dp_mode->drm_mode.clock) { /* valid DP mode */ @@ -83,7 +81,6 @@ static int dp_connector_get_modes(struct drm_connector *connector) drm_mode.hdisplay, drm_mode.vdisplay); kfree(dp_mode); - mutex_unlock(&dp->connect_mutex); return 0; } drm_mode_probed_add(connector, m); @@ -91,7 +88,6 @@ static int dp_connector_get_modes(struct drm_connector *connector) } else { DRM_DEBUG_DP("No sink connected\n"); } - mutex_unlock(&dp->connect_mutex); kfree(dp_mode); return rc; } |