diff options
| author | Tomeu Vizoso <tomeu.vizoso@collabora.com> | 2016-09-23 16:06:40 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-10-04 08:23:17 +0200 |
| commit | 0546d685f07cc4fc5748fd36e57d167877c2842d (patch) | |
| tree | 56b229e308a2efaae292b3bb0d0d8308a39ef518 /init/do_mounts.c | |
| parent | drm/bridge: analogix_dp: Add analogix_dp_psr_supported (diff) | |
| download | linux-0546d685f07cc4fc5748fd36e57d167877c2842d.tar.xz linux-0546d685f07cc4fc5748fd36e57d167877c2842d.zip | |
drm/rockchip: analogix_dp: Refuse to enable PSR if panel doesn't support it
There's no point in enabling PSR when the panel doesn't support it.
This also avoids a problem when PSR gets enabled when a CRTC is being
disabled, because sometimes in that situation the DSP_HOLD_VALID_INTR
interrupt on which we wait will never arrive. This was observed on
RK3288 with a panel without PSR (veyron-jaq Chromebook).
It's very easy to reproduce by running the kms_rmfb test in IGT a few
times.
Cc: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1474639600-30090-2-git-send-email-tomeu.vizoso@collabora.com
Diffstat (limited to 'init/do_mounts.c')
0 files changed, 0 insertions, 0 deletions