[PATCH v3 4/4] drm/rockchip: dsi: Disable PLL clock on bind error

[Brian Norris]

Fix some error handling here noticed in review of other changes.

Fixes: 2d4f7bdafd70 ("drm/rockchip: dsi: migrate to use dw-mipi-dsi bridge 
driver")
Signed-off-by: Brian Norris <briannor...@chromium.org>
Reported-by: Chen-Yu Tsai <we...@chromium.org>
Reviewed-by: Chen-Yu Tsai <we...@chromium.org>
---

Changes in v3:
- Add Fixes, Reviewed-by

Changes in v2:
- New

 drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c 
b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 8ea852880d1c..59c3d8ef6bf9 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -945,7 +945,7 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
        ret = clk_prepare_enable(dsi->grf_clk);
        if (ret) {
                DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
-               goto out_pm_runtime;
+               goto out_pll_clk;
        }
 
        dw_mipi_dsi_rockchip_config(dsi);
@@ -957,19 +957,21 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
        ret = rockchip_dsi_drm_create_encoder(dsi, drm_dev);
        if (ret) {
                DRM_DEV_ERROR(dev, "Failed to create drm encoder\n");
-               goto out_pm_runtime;
+               goto out_pll_clk;
        }
 
        ret = dw_mipi_dsi_bind(dsi->dmd, &dsi->encoder);
        if (ret) {
                DRM_DEV_ERROR(dev, "Failed to bind: %d\n", ret);
-               goto out_pm_runtime;
+               goto out_pll_clk;
        }
 
        dsi->dsi_bound = true;
 
        return 0;
 
+out_pll_clk:
+       clk_disable_unprepare(dsi->pllref_clk);
 out_pm_runtime:
        pm_runtime_put(dsi->dev);
        if (dsi->slave)
-- 
2.33.0.685.g46640cef36-goog