From: Mark Yao <y...@rock-chips.com>
Reference the power domain incase vop power down when
in use.
Signed-off-by: Mark Yao <y...@rock-chips.com>
---
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index d041921..7a61c8e 100644
--- 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);
}
/*
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
