mirror of https://gitee.com/openkylin/linux.git
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:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| drv.c | ||
| dw_mipi_dsi-stm.c | ||
| ltdc.c | ||
| ltdc.h | ||