diff options
| author | Kuogee Hsieh <[email protected]> | 2020-11-03 14:53:35 -0800 |
|---|---|---|
| committer | Rob Clark <[email protected]> | 2020-11-10 12:38:58 -0800 |
| commit | 19e52bcb27c2ba140699d2230d722366d7d048a1 (patch) | |
| tree | 741330813c3d0430d1ff706d4c20b772e1aa5e33 /lib/test_fortify/write_overflow-strcpy.c | |
| parent | 5771de5d5b3bfaf279e5c262a113d4b6fbe54355 (diff) | |
drm/msm/dp: return correct connection status after suspend
During suspend, dp host controller and hpd block are disabled due to
both ahb and aux clock are disabled. Therefore hpd plug/unplug interrupts
will not be generated. At dp_pm_resume(), reinitialize both dp host
controller and hpd block so that hpd plug/unplug interrupts will be
generated and handled by driver so that hpd connection state is updated
correctly. This patch will fix link training flaky issues.
Changes in v2:
-- use container_of to cast correct dp_display_private pointer
at both dp_pm_suspend() and dp_pm_resume().
Changes in v3:
-- replace hpd_state atomic_t with u32
Changes in v4
-- call dp_display_host_deinit() at dp_pm_suspend()
-- call dp_display_host_init() at msm_dp_display_enable()
-- fix phy->init_count unbalance which causes link training failed
Changes in v5
-- add Fixes tag
Fixes: 8ede2ecc3e5e (drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets)
Tested-by: Stephen Boyd <[email protected]>
Signed-off-by: Kuogee Hsieh <[email protected]>
Signed-off-by: Rob Clark <[email protected]>
Diffstat (limited to 'lib/test_fortify/write_overflow-strcpy.c')
0 files changed, 0 insertions, 0 deletions