drm/rockchip: add mutex vop lock

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Add a lock to vop to avoid disabling the crtc while waiting for a line
flag while enabling psr. If we disable in the middle of waiting for the
line flag, we'll end up timing out or worse.

Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180309222327.18689-5-enric.balletbo@collabora.com

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zain wang 2018-03-09 23:22:55 +01:00 • committed by Heiko Stuebner

parent f9d5680596

commit e334d48b2c

1 changed files with 24 additions and 6 deletions

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drivers/gpu/drm/rockchip/rockchip_drm_vop.c

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