On Mon, Dec 02, 2013 at 01:52:20AM +0100, Laurent Pinchart wrote: [...] > diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c > b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c [...] > @@ -170,7 +178,9 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc > *scrtc) > return; > > /* Enable clocks before accessing the hardware. */ > - shmob_drm_clk_on(sdev); > + ret = shmob_drm_clk_on(sdev); > + if (ret < 0) > + return;
Perhaps this should be printing an error or using WARN_ON()? Otherwise it might be very difficult to diagnose what's going wrong. Thierry -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20131203/06d5c1b0/attachment.pgp>