drm/sun4i: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210831135740.4826-1-caihuoqing@baidu.com

drivers/gpu/drm/sun4i/sun4i_backend.c

@@ -782,7 +782,6 @@ static int sun4i_backend_bind(struct device *dev, struct device *master,
 	struct sun4i_drv *drv = drm->dev_private;
 	struct sun4i_backend *backend;
 	const struct sun4i_backend_quirks *quirks;
-	struct resource *res;
 	void __iomem *regs;
 	int i, ret;
 
@@ -815,8 +814,7 @@ static int sun4i_backend_bind(struct device *dev, struct device *master,
 	if (IS_ERR(backend->frontend))
 		dev_warn(dev, "Couldn't find matching frontend, frontend features disabled\n");
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 

drivers/gpu/drm/sun4i/sun4i_frontend.c

@@ -561,7 +561,6 @@ static int sun4i_frontend_bind(struct device *dev, struct device *master,
 	struct sun4i_frontend *frontend;
 	struct drm_device *drm = data;
 	struct sun4i_drv *drv = drm->dev_private;
-	struct resource *res;
 	void __iomem *regs;
 
 	frontend = devm_kzalloc(dev, sizeof(*frontend), GFP_KERNEL);
@@ -576,8 +575,7 @@ static int sun4i_frontend_bind(struct device *dev, struct device *master,
 	if (!frontend->data)
 		return -ENODEV;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 

drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c

@@ -489,7 +489,6 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
 	struct cec_connector_info conn_info;
 	struct sun4i_drv *drv = drm->dev_private;
 	struct sun4i_hdmi *hdmi;
-	struct resource *res;
 	u32 reg;
 	int ret;
 
@@ -504,8 +503,7 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
 	if (!hdmi->variant)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hdmi->base = devm_ioremap_resource(dev, res);
+	hdmi->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hdmi->base)) {
 		dev_err(dev, "Couldn't map the HDMI encoder registers\n");
 		return PTR_ERR(hdmi->base);

drivers/gpu/drm/sun4i/sun4i_tcon.c

@@ -841,11 +841,9 @@ static int sun4i_tcon_init_regmap(struct device *dev,
 				  struct sun4i_tcon *tcon)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct resource *res;
 	void __iomem *regs;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 

drivers/gpu/drm/sun4i/sun4i_tv.c

@@ -538,7 +538,6 @@ static int sun4i_tv_bind(struct device *dev, struct device *master,
 	struct drm_device *drm = data;
 	struct sun4i_drv *drv = drm->dev_private;
 	struct sun4i_tv *tv;
-	struct resource *res;
 	void __iomem *regs;
 	int ret;
 
@@ -548,8 +547,7 @@ static int sun4i_tv_bind(struct device *dev, struct device *master,
 	tv->drv = drv;
 	dev_set_drvdata(dev, tv);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs)) {
 		dev_err(dev, "Couldn't map the TV encoder registers\n");
 		return PTR_ERR(regs);

drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c

@@ -1104,7 +1104,6 @@ static int sun6i_dsi_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	const char *bus_clk_name = NULL;
 	struct sun6i_dsi *dsi;
-	struct resource *res;
 	void __iomem *base;
 	int ret;
 
@@ -1120,8 +1119,7 @@ static int sun6i_dsi_probe(struct platform_device *pdev)
 				    "allwinner,sun6i-a31-mipi-dsi"))
 		bus_clk_name = "bus";
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base)) {
 		dev_err(dev, "Couldn't map the DSI encoder registers\n");
 		return PTR_ERR(base);

drivers/gpu/drm/sun4i/sun8i_mixer.c

@@ -337,7 +337,6 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
 	struct drm_device *drm = data;
 	struct sun4i_drv *drv = drm->dev_private;
 	struct sun8i_mixer *mixer;
-	struct resource *res;
 	void __iomem *regs;
 	unsigned int base;
 	int plane_cnt;
@@ -390,8 +389,7 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
 	if (!mixer->cfg)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
 

drivers/gpu/drm/sun4i/sun8i_tcon_top.c

@@ -128,7 +128,6 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master,
 	struct clk_hw_onecell_data *clk_data;
 	struct sun8i_tcon_top *tcon_top;
 	const struct sun8i_tcon_top_quirks *quirks;
-	struct resource *res;
 	void __iomem *regs;
 	int ret, i;
 
@@ -158,8 +157,7 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master,
 		return PTR_ERR(tcon_top->bus);
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	regs = devm_ioremap_resource(dev, res);
+	regs = devm_platform_ioremap_resource(pdev, 0);
 	tcon_top->regs = regs;
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);