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-rw-r--r--drivers/gpu/drm/rockchip/rockchip_drm_vop.c36
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 5d8ae5e49c44..48719df70419 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1575,32 +1575,25 @@ static int vop_initial(struct vop *vop)
return PTR_ERR(vop->dclk);
}
- ret = clk_prepare(vop->hclk);
- if (ret < 0) {
- dev_err(vop->dev, "failed to prepare hclk\n");
- return ret;
- }
-
ret = clk_prepare(vop->dclk);
if (ret < 0) {
dev_err(vop->dev, "failed to prepare dclk\n");
- goto err_unprepare_hclk;
+ return ret;
}
- ret = clk_prepare(vop->aclk);
+ /* Enable both the hclk and aclk to setup the vop */
+ ret = clk_prepare_enable(vop->hclk);
if (ret < 0) {
- dev_err(vop->dev, "failed to prepare aclk\n");
+ dev_err(vop->dev, "failed to prepare/enable hclk\n");
goto err_unprepare_dclk;
}
- /*
- * enable hclk, so that we can config vop register.
- */
- ret = clk_enable(vop->hclk);
+ ret = clk_prepare_enable(vop->aclk);
if (ret < 0) {
- dev_err(vop->dev, "failed to prepare aclk\n");
- goto err_unprepare_aclk;
+ dev_err(vop->dev, "failed to prepare/enable aclk\n");
+ goto err_disable_hclk;
}
+
/*
* do hclk_reset, reset all vop registers.
*/
@@ -1608,7 +1601,7 @@ static int vop_initial(struct vop *vop)
if (IS_ERR(ahb_rst)) {
dev_err(vop->dev, "failed to get ahb reset\n");
ret = PTR_ERR(ahb_rst);
- goto err_disable_hclk;
+ goto err_disable_aclk;
}
reset_control_assert(ahb_rst);
usleep_range(10, 20);
@@ -1634,26 +1627,25 @@ static int vop_initial(struct vop *vop)
if (IS_ERR(vop->dclk_rst)) {
dev_err(vop->dev, "failed to get dclk reset\n");
ret = PTR_ERR(vop->dclk_rst);
- goto err_unprepare_aclk;
+ goto err_disable_aclk;
}
reset_control_assert(vop->dclk_rst);
usleep_range(10, 20);
reset_control_deassert(vop->dclk_rst);
clk_disable(vop->hclk);
+ clk_disable(vop->aclk);
vop->is_enabled = false;
return 0;
+err_disable_aclk:
+ clk_disable_unprepare(vop->aclk);
err_disable_hclk:
- clk_disable(vop->hclk);
-err_unprepare_aclk:
- clk_unprepare(vop->aclk);
+ clk_disable_unprepare(vop->hclk);
err_unprepare_dclk:
clk_unprepare(vop->dclk);
-err_unprepare_hclk:
- clk_unprepare(vop->hclk);
return ret;
}