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drm/omap: fix plane check when crtc is disabled

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I sometimes see:

[drm:drm_framebuffer_remove [drm]] *ERROR* failed to reset crtc ed2a6c00
when fb was deleted: -22

which comes from drm_framebuffer_remove() when it's disabling the crtc
with zeroed drm_mode_set.

The problem in omap_plane_atomic_check() is that it will use those
zeroed fields to verify if the setup is correct.

This patch makes omap_plane_atomic_check() return 0 if the crtc is
disabled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2016-06-10 12:50:39 +03:00
parent fb422950c6
commit aaf7642e98
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/omapdrm/omap_plane.c
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@ -164,6 +164,9 @@ static int omap_plane_atomic_check(struct drm_plane *plane,
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
if (!crtc_state->enable)
return 0;
if (state->crtc_x < 0 || state->crtc_y < 0)
return -EINVAL;