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disp: msm: dp: add dpcd/edid support to dp aux simulator

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Add dpcd/edid support to dp aux simulator to enable below features
as options:

  skip edid read
  skip link training
  skip dpcd read
  skip dpcd write
  skip hot plug
  skip sideband message

Also added debugfs support to update dpcd/edid and enable/disable
above features.

Change-Id: Ifa9153f2f00442f3cd5ee3db63fa93384ebc638f
Signed-off-by: Xiaowen Wu <wxiaowen@codeaurora.org>
Signed-off-by: Karim Henain <khenain@codeaurora.org>
Signed-off-by: Sudarsan Ramesh <sudarame@codeaurora.org>
This commit is contained in:
Xiaowen Wu
2020-02-04 18:09:05 -05:00
committed by Sudarsan Ramesh
parent 5908171576
commit 52edf46bbd
3 changed files with 1190 additions and 117 deletions
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15
msm/dp/dp_display.c
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@@ -3182,14 +3182,18 @@ end:
return rc;
}
static int dp_display_bridge_mst_attention(void *dev, bool hpd, bool hpd_irq)
static int dp_display_bridge_internal_hpd(void *dev, bool hpd, bool hpd_irq)
{
struct dp_display_private *dp = dev;
struct drm_device *drm_dev = dp->dp_display.drm_dev;
if (!hpd_irq)
return -EINVAL;
if (!drm_dev || !drm_dev->mode_config.poll_enabled)
return -EBUSY;
dp_display_mst_attention(dp);
if (hpd_irq)
dp_display_mst_attention(dp);
else
dp->hpd->simulate_connect(dp->hpd, hpd);
return 0;
}
@@ -3219,10 +3223,9 @@ static int dp_display_init_aux_bridge(struct dp_display_private *dp)
}
if (dp->aux_bridge->register_hpd &&
(dp->aux_bridge->flag & DP_AUX_BRIDGE_MST) &&
!(dp->aux_bridge->flag & DP_AUX_BRIDGE_HPD))
dp->aux_bridge->register_hpd(dp->aux_bridge,
dp_display_bridge_mst_attention, dp);
dp_display_bridge_internal_hpd, dp);
end:
return rc;