On Thu, May 07, 2020 at 11:06:40AM +0200, Thomas Zimmermann wrote:
Suspending failed because there's no mode if the CRTC is being disabled. Early-out in this case. This fixes runtime PM for ast.
v3:
- fixed commit message
v2:
- added Tested-by/Reported-by tags
- added Fixes tags and CC (Sam)
- improved comment
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Reported-by: Cary Garrett cogarre@gmail.com Tested-by: Cary Garrett cogarre@gmail.com Fixes: b48e1b6ffd28 ("drm/ast: Add CRTC helpers for atomic modesetting") Cc: Thomas Zimmermann tzimmermann@suse.de Cc: Gerd Hoffmann kraxel@redhat.com Cc: Dave Airlie airlied@redhat.com Cc: Daniel Vetter daniel.vetter@ffwll.ch Cc: Sam Ravnborg sam@ravnborg.org Cc: stable@vger.kernel.org # v5.6+
Yeah legacy crtc helpers just let you shut stuff off and no checks.
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch
drivers/gpu/drm/ast/ast_mode.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index 7a9f20a2fd303..0cbbb21edb4e1 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -801,6 +801,9 @@ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc, return -EINVAL; }
- if (!state->enable)
return 0; /* no mode checks if CRTC is being disabled */- ast_state = to_ast_crtc_state(state);
format = ast_state->format; -- 2.26.0