From 5d82d1a785155fe4ff65628a88b677cfacea863b Mon Sep 17 00:00:00 2001 From: Mark Yao Date: Wed, 1 Apr 2015 13:48:53 +0800 Subject: [PATCH] drm/rockchip: vop: add vop power domain support Reference the power domain incase vop power down when in use. Signed-off-by: Mark Yao --- 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 6115898efe6b..ccb0ce073ef2 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); } /*