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Jyri Sarha authored
commit ce99f720 upstream. We need the total frame refresh time to check if we are too close to vertical sync when updating the two framebuffer DMA registers and risk a collision. This new method is more accurate that the previous that based on mode's vrefresh value, which itself is inaccurate or may not even be initialized. Reported-by: Kevin Hao <kexin.hao@windriver.com> Fixes: 11abbc9f ("drm/tilcdc: Set framebuffer DMA address to HW only if CRTC is enabled") Signed-off-by: Jyri Sarha <jsarha@ti.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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