Bridge drivers/helpers shouldn't be clobbering the drvdata, since a
parent driver might need to own this. Instead, let's return our
'dw_mipi_dsi' object and have callers pass that back to us for removal.
So adjust it.

Signed-off-by: Nickey Yang <nickey.y...@rock-chips.com>
---
 drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c 
b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
index e5b6310..80f9950 100644
--- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
+++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
@@ -66,6 +66,7 @@ enum dsi_color {
 struct dw_mipi_dsi_stm {
        void __iomem *base;
        struct clk *pllref_clk;
+       struct dw_mipi_dsi *dmd;
 };
 
 static inline void dsi_write(struct dw_mipi_dsi_stm *dsi, u32 reg, u32 val)
@@ -318,10 +319,11 @@ static int dw_mipi_dsi_stm_probe(struct platform_device 
*pdev)
        dw_mipi_dsi_stm_plat_data.base = dsi->base;
        dw_mipi_dsi_stm_plat_data.priv_data = dsi;
 
-       ret = dw_mipi_dsi_probe(pdev, &dw_mipi_dsi_stm_plat_data);
-       if (ret) {
+       dsi->dmd = dw_mipi_dsi_probe(pdev, &dw_mipi_dsi_stm_plat_data);
+       if (IS_ERR(dsi->dmd)) {
                DRM_ERROR("Failed to initialize mipi dsi host\n");
                clk_disable_unprepare(dsi->pllref_clk);
+               return PTR_ERR(dsi->dmd);
        }
 
        return ret;
@@ -332,7 +334,7 @@ static int dw_mipi_dsi_stm_remove(struct platform_device 
*pdev)
        struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
 
        clk_disable_unprepare(dsi->pllref_clk);
-       dw_mipi_dsi_remove(pdev);
+       dw_mipi_dsi_remove(dsi->dmd);
 
        return 0;
 }
-- 
1.9.1

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