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drm/rockchip: vop: add vop power domain support
author
Mark Yao
<yzq@rock-chips.com>
Wed, 1 Apr 2015 05:48:53 +0000
(13:48 +0800)
committer
Mark Yao
<mark.yao@rock-chips.com>
Fri, 3 Apr 2015 06:23:36 +0000
(14:23 +0800)
Reference the power domain incase vop power down when
in use.
Signed-off-by: Mark Yao <yzq@rock-chips.com>
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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diff --git
a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index
6115898
..
ccb0ce0
100644
(file)
--- a/
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@
-421,6
+421,12
@@
static void vop_enable(struct drm_crtc *crtc)
if (vop->is_enabled)
return;
+ ret = pm_runtime_get_sync(vop->dev);
+ if (ret < 0) {
+ dev_err(vop->dev, "failed to get pm runtime: %d\n", ret);
+ return;
+ }
+
ret = clk_enable(vop->hclk);
if (ret < 0) {
dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
@@
-517,6
+523,7
@@
static void vop_disable(struct drm_crtc *crtc)
clk_disable(vop->dclk);
clk_disable(vop->aclk);
clk_disable(vop->hclk);
+ pm_runtime_put(vop->dev);
}
/*