[PATCH 5/9] drm/rockchip: vop: Enable pm domain when resetting vop

[Jeffy Chen]

Signed-off-by: Jeffy Chen <jeffy.c...@rock-chips.com>
---

 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 31 +++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c 
b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 76c79ac..1d85319 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1365,6 +1365,12 @@ static int vop_initial(struct vop *vop)
                return ret;
        }
 
+       ret = pm_runtime_get_sync(vop->dev);
+       if (ret < 0) {
+               dev_err(vop->dev, "failed to get pm runtime: %d\n", ret);
+               goto err_put_pm_runtime;
+       }
+
        /* Enable both the hclk and aclk to setup the vop */
        ret = clk_prepare_enable(vop->hclk);
        if (ret < 0) {
@@ -1422,6 +1428,8 @@ static int vop_initial(struct vop *vop)
 
        vop->is_enabled = false;
 
+       pm_runtime_put_sync(vop->dev);
+
        return 0;
 
 err_disable_aclk:
@@ -1430,6 +1438,8 @@ static int vop_initial(struct vop *vop)
        clk_disable_unprepare(vop->hclk);
 err_unprepare_dclk:
        clk_unprepare(vop->dclk);
+err_put_pm_runtime:
+       pm_runtime_put_sync(vop->dev);
        return ret;
 }
 
@@ -1530,12 +1540,6 @@ static int vop_bind(struct device *dev, struct device 
*master, void *data)
        if (!vop->regsbak)
                return -ENOMEM;
 
-       ret = vop_initial(vop);
-       if (ret < 0) {
-               dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret);
-               return ret;
-       }
-
        irq = platform_get_irq(pdev, 0);
        if (irq < 0) {
                dev_err(dev, "cannot find irq for vop\n");
@@ -1556,15 +1560,22 @@ static int vop_bind(struct device *dev, struct device 
*master, void *data)
        /* IRQ is initially disabled; it gets enabled in power_on */
        disable_irq(vop->irq);
 
+       pm_runtime_enable(&pdev->dev);
+
+       ret = vop_initial(vop);
+       if (ret < 0) {
+               dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret);
+               goto err_disable_pm_runtime;
+       }
+
        ret = vop_create_crtc(vop);
        if (ret)
-               goto err_enable_irq;
-
-       pm_runtime_enable(&pdev->dev);
+               goto err_disable_pm_runtime;
 
        return 0;
 
-err_enable_irq:
+err_disable_pm_runtime:
+       pm_runtime_disable(&pdev->dev);
        enable_irq(vop->irq); /* To balance out the disable_irq above */
        return ret;
 }
-- 
2.1.4