mbox series

[0/3] fix dp link training failed at irq_hpd request

Message ID 20201103204902.11899-1-khsieh@codeaurora.org
Headers show
Series fix dp link training failed at irq_hpd request | expand

Message

Kuogee Hsieh Nov. 3, 2020, 8:48 p.m. UTC 
Some dongle require link training be done at irq_hpd request. This serial
patches address the issues so that DP/HDMI display can be lit up properlly.
This serial Patch also fixes clock stuck at "off" state error caused by
previous link training failed.

Kuogee Hsieh (3):
  drm/msm/dp: deinitialize mainlink if link training failed
  drm/msm/dp: skip checking LINK_STATUS_UPDATED bit
  drm/msm/dp: promote irq_hpd handle to handle link training correctly

 drivers/gpu/drm/msm/dp/dp_catalog.c |  2 +-
 drivers/gpu/drm/msm/dp/dp_catalog.h |  2 +-
 drivers/gpu/drm/msm/dp/dp_ctrl.c    | 60 +++++++++++++++++++++--------
 drivers/gpu/drm/msm/dp/dp_display.c | 40 ++++++++++++++++---
 drivers/gpu/drm/msm/dp/dp_link.c    | 29 +++++++-------
 drivers/gpu/drm/msm/dp/dp_panel.c   |  2 +-
 6 files changed, 96 insertions(+), 39 deletions(-)

Comments

Stephen Boyd Nov. 5, 2020, 3:06 a.m. UTC | #1 
Quoting Kuogee Hsieh (2020-11-03 12:49:02)
> Some dongles require link training done at irq_hpd request instead
> of plugin request. This patch promote irq_hpd handler to handle link
> training and setup hpd_state correctly.
> 
>  Fixes: fdaf9a5e3c15 (drm/msm/dp: fixes wrong connection state caused by failure of link training)

This fixes tag has a space before it incorrectly. Also, it should have
quotes.

Fixes: fdaf9a5e3c15 ("drm/msm/dp: fixes wrong connection state caused by failure of link training")

> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> ---