Commits
Peter Griffin committed a2f04243078
drm/hisilicon: Ensure LDI regs are properly configured. This patch fixes the following soft lockup: BUG: soft lockup - CPU#0 stuck for 23s! [weston:307] On weston idle-timeout the IP is powered down and reset asserted. On weston resume we get a massive vblank IRQ storm due to the LDI registers having lost some state. This state loss is caused by ade_crtc_atomic_begin() not calling ade_ldi_set_mode(). With this patch applied resuming from Weston idle-timeout works well. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Tested-by: John Stultz <john.stultz@linaro.org> Cc: stable@vger.kernel.org Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>