[RFC PATCH v2 1/4] drm: dw-hdmi: make it easy to recovery the platform data for platform driver

[Yakir Yang]

Signed-off-by: Yakir Yang <ykk at rock-chips.com>
---
Changes in v2: None

 drivers/gpu/drm/imx/dw_hdmi-imx.c           | 7 ++++---
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 7 ++++---
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c 
b/drivers/gpu/drm/imx/dw_hdmi-imx.c
index 063825f..0968610 100644
--- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
+++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -26,6 +26,7 @@ struct imx_hdmi {
        struct device *dev;
        struct drm_encoder encoder;
        struct regmap *regmap;
+       struct dw_hdmi_plat_data plat_data;
 };

 static const struct dw_hdmi_mpll_config imx_mpll_cfg[] = {
@@ -204,7 +205,6 @@ static int dw_hdmi_imx_bind(struct device *dev, struct 
device *master,
                            void *data)
 {
        struct platform_device *pdev = to_platform_device(dev);
-       const struct dw_hdmi_plat_data *plat_data;
        const struct of_device_id *match;
        struct drm_device *drm = data;
        struct drm_encoder *encoder;
@@ -221,7 +221,7 @@ static int dw_hdmi_imx_bind(struct device *dev, struct 
device *master,
                return -ENOMEM;

        match = of_match_node(dw_hdmi_imx_dt_ids, pdev->dev.of_node);
-       plat_data = match->data;
+       hdmi->plat_data = *(const struct dw_hdmi_plat_data *)match->data;
        hdmi->dev = &pdev->dev;
        encoder = &hdmi->encoder;

@@ -253,7 +253,8 @@ static int dw_hdmi_imx_bind(struct device *dev, struct 
device *master,
        drm_encoder_init(drm, encoder, &dw_hdmi_imx_encoder_funcs,
                         DRM_MODE_ENCODER_TMDS, NULL);

-       return dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
+       return dw_hdmi_bind(dev, master, data, encoder, iores, irq,
+                           &hdmi->plat_data);
 }

 static void dw_hdmi_imx_unbind(struct device *dev, struct device *master,
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c 
b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index c65ce8c..d5816b3 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -28,6 +28,7 @@ struct rockchip_hdmi {
        struct device *dev;
        struct regmap *regmap;
        struct drm_encoder encoder;
+       struct dw_hdmi_plat_data plat_data;
 };

 #define to_rockchip_hdmi(x)    container_of(x, struct rockchip_hdmi, x)
@@ -242,7 +243,6 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct 
device *master,
                                 void *data)
 {
        struct platform_device *pdev = to_platform_device(dev);
-       const struct dw_hdmi_plat_data *plat_data;
        const struct of_device_id *match;
        struct drm_device *drm = data;
        struct drm_encoder *encoder;
@@ -259,7 +259,7 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct 
device *master,
                return -ENOMEM;

        match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node);
-       plat_data = match->data;
+       hdmi->plat_data = *(const struct dw_hdmi_plat_data *)match->data;
        hdmi->dev = &pdev->dev;
        encoder = &hdmi->encoder;

@@ -293,7 +293,8 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct 
device *master,
        drm_encoder_init(drm, encoder, &dw_hdmi_rockchip_encoder_funcs,
                         DRM_MODE_ENCODER_TMDS, NULL);

-       return dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
+       return dw_hdmi_bind(dev, master, data, encoder, iores, irq,
+                           &hdmi->plat_data);
 }

 static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,
-- 
2.1.2