diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-12-09 14:19:10 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-12-23 13:01:52 +0300 |
| commit | 3dbf11e42108d2c8a497923df959eb82388131f8 (patch) | |
| tree | ebc4e469f6284e564141275a36791e9f6a89c695 /drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c | |
| parent | 2d60762adebfa9fabca69fc2f2f2d51d4cfd7af5 (diff) | |
| download | linux-3dbf11e42108d2c8a497923df959eb82388131f8.tar.xz | |
drm: rcar-du: Clamp DPMS states to on and off
The intermediate DPMS standby and suspend states are a thing from the
past. They only matter in practice for VGA CRT monitors, and are just a
power saving vs. resume time optimization. Given that they have never
been implemented properly in the rcar-du driver and that the Intel
driver has dropped them on the vga port years ago, it's safe to only
care about the on and off states.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c index 0d774a937e79..221f0a17fd6a 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmienc.c @@ -37,6 +37,9 @@ static void rcar_du_hdmienc_dpms(struct drm_encoder *encoder, int mode) struct rcar_du_hdmienc *hdmienc = to_rcar_hdmienc(encoder); struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder); + if (mode != DRM_MODE_DPMS_ON) + mode = DRM_MODE_DPMS_OFF; + if (hdmienc->dpms == mode) return; |