gpu driver can specify the limit on the number of connectors that a given crtc can use. Add a check to make sure this limit is honored when building a list of connectors associated with a crtc.
Signed-off-by: Ilija Hadzic ihadzic@research.bell-labs.com --- drivers/gpu/drm/drm_fb_helper.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index feac888..19e28e9 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1333,6 +1333,11 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) modeset = &fb_crtc->mode_set;
if (mode && fb_crtc) { + if (modeset->num_connectors >= fb_helper->conn_limit) { + DRM_DEBUG("max number of connectors reached for crtc %d\n", + fb_crtc->crtc_id); + break; + } DRM_DEBUG_KMS("desired mode %s set on crtc %d\n", mode->name, fb_crtc->mode_set.crtc->base.id); fb_crtc->desired_mode = mode;