diff options
| author | Thierry Reding <thierry.reding@avionic-design.de> | 2013-03-18 14:09:13 +0400 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2013-05-25 14:32:48 +0400 |
| commit | 2678aeba5fe1a799788cce2a34003d8fa6ad7153 (patch) | |
| tree | 276a2558b679c8c01ce4596358d783a79adf182d /drivers/gpu/host1x | |
| parent | c7788792a5e7b0d5d7f96d0766b4cb6112d47d75 (diff) | |
| download | linux-2678aeba5fe1a799788cce2a34003d8fa6ad7153.tar.xz | |
drm/tegra: Don't disable unused planes
When a plane isn't in use it isn't attached to a CRTC and therefore the
DC registers aren't available for programming.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'drivers/gpu/host1x')
| -rw-r--r-- | drivers/gpu/host1x/drm/dc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/drm/dc.c b/drivers/gpu/host1x/drm/dc.c index 8c04943f82e3..98f60d827558 100644 --- a/drivers/gpu/host1x/drm/dc.c +++ b/drivers/gpu/host1x/drm/dc.c @@ -79,6 +79,9 @@ static int tegra_plane_disable(struct drm_plane *plane) struct tegra_plane *p = to_tegra_plane(plane); unsigned long value; + if (!plane->crtc) + return 0; + value = WINDOW_A_SELECT << p->index; tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); |