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 <ihad...@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;
--
1.7.7
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