mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-08 10:31:43 +01:00
Marek Vasut
ebd267b2e3
Add missing pm_runtime_get_sync() into ltdc_crtc_atomic_enable() to
match pm_runtime_put_sync() in ltdc_crtc_atomic_disable(), otherwise
the LTDC might suspend via runtime PM, disable clock, and then fail
to resume later on.
The test which triggers it is roughly -- run qt5 application which
uses eglfs platform and etnaviv, stop the application, sleep for 15
minutes, run the application again. This leads to a timeout waiting
for vsync, because the LTDC has suspended, but did not resume.
Fixes: 35ab6cfbf2 ("drm/stm: support runtime power management")
Signed-off-by: Marek Vasut <[email protected]>
Cc: Yannick Fertré <[email protected]>
Cc: Philippe Cornu <[email protected]>
Cc: Benjamin Gaignard <[email protected]>
Cc: Vincent Abriou <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Cc: Alexandre Torgue <[email protected]>
To: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Philippe Cornu <[email protected]>
Tested-by: Yannick Fertre <[email protected]>
Signed-off-by: Benjamin Gaignard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]