On Thu, Jun 29, 2017 at 09:54:38PM +0100, Peter Griffin wrote: > 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@xxxxxxxxxx> > --- > drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 3 +++ > 1 file changed, 3 insertions(+) > <formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly. </formletter>