[RFC PATCH v4 3/8] drm/rockchip: dw-mipi-dsi: Fix error handling path

[Jeffy Chen]

Add missing pm_runtime_disable() in bind()'s error handling path.

Also cleanup encoder & connector in unbind().

Fixes: 80a9a059d4e4 ("drm/rockchip/dsi: add dw-mipi power domain support")
Signed-off-by: Jeffy Chen <jeffy.c...@rock-chips.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c 
b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index b15755b6129c..a17ff0f6f489 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -1282,7 +1282,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct 
device *master,
        ret = dw_mipi_dsi_register(drm, dsi);
        if (ret) {
                DRM_DEV_ERROR(dev, "Failed to register mipi_dsi: %d\n", ret);
-               goto err_pllref;
+               goto err_disable_pllref;
        }
 
        pm_runtime_enable(dev);
@@ -1292,23 +1292,24 @@ static int dw_mipi_dsi_bind(struct device *dev, struct 
device *master,
        ret = mipi_dsi_host_register(&dsi->dsi_host);
        if (ret) {
                DRM_DEV_ERROR(dev, "Failed to register MIPI host: %d\n", ret);
-               goto err_cleanup;
+               goto err_disable_pm_runtime;
        }
 
        if (!dsi->panel) {
                ret = -EPROBE_DEFER;
-               goto err_mipi_dsi_host;
+               goto err_unreg_mipi_dsi_host;
        }
 
        dev_set_drvdata(dev, dsi);
        return 0;
 
-err_mipi_dsi_host:
+err_unreg_mipi_dsi_host:
        mipi_dsi_host_unregister(&dsi->dsi_host);
-err_cleanup:
+err_disable_pm_runtime:
+       pm_runtime_disable(dev);
        drm_encoder_cleanup(&dsi->encoder);
        drm_connector_cleanup(&dsi->connector);
-err_pllref:
+err_disable_pllref:
        clk_disable_unprepare(dsi->pllref_clk);
        return ret;
 }
@@ -1320,6 +1321,10 @@ static void dw_mipi_dsi_unbind(struct device *dev, 
struct device *master,
 
        mipi_dsi_host_unregister(&dsi->dsi_host);
        pm_runtime_disable(dev);
+
+       dsi->connector.funcs->destroy(&dsi->connector);
+       dsi->encoder.funcs->destroy(&dsi->encoder);
+
        clk_disable_unprepare(dsi->pllref_clk);
 }
 
-- 
2.11.0