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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2014-12-09 13:19:10 +0200
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2014-12-23 12:01:52 +0200
commit3dbf11e42108d2c8a497923df959eb82388131f8 (patch)
treeebc4e469f6284e564141275a36791e9f6a89c695 /drivers/gpu/drm/rcar-du/rcar_du_encoder.c
parent2d60762adebfa9fabca69fc2f2f2d51d4cfd7af5 (diff)
downloadop-kernel-dev-3dbf11e42108d2c8a497923df959eb82388131f8.zip
op-kernel-dev-3dbf11e42108d2c8a497923df959eb82388131f8.tar.gz
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_encoder.c')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_encoder.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
index 243aba8..279167f 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
@@ -46,6 +46,9 @@ static void rcar_du_encoder_dpms(struct drm_encoder *encoder, int mode)
{
struct rcar_du_encoder *renc = to_rcar_encoder(encoder);
+ if (mode != DRM_MODE_DPMS_ON)
+ mode = DRM_MODE_DPMS_OFF;
+
if (renc->lvds)
rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc, mode);
}
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