linux-kernel - [PATCH -next 2/2] drm/arm/hdlcd: Use devm_platform_ioremap

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Date:   Tue, 14 Mar 2023 16:02:30 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     airlied@...il.com
Cc:     daniel@...ll.ch, liviu.dudau@....com, brian.starkey@....com,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH -next 2/2] drm/arm/hdlcd: Use devm_platform_ioremap_resource()

According to commit 7945f929f1a7 ("drivers: provide
devm_platform_ioremap_resource()"), convert platform_get_resource(),
devm_ioremap_resource() to a single call to Use
devm_platform_ioremap_resource(), as this is exactly what this function
does.

Since 'struct platform_device *pdev = to_platform_device(drm->dev)',
'drm->dev' is equivalent to 'pdev->deva'.

Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 drivers/gpu/drm/arm/hdlcd_drv.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
index e3507dd6f82a..a86b317c1312 100644
--- a/drivers/gpu/drm/arm/hdlcd_drv.c
+++ b/drivers/gpu/drm/arm/hdlcd_drv.c
@@ -100,7 +100,6 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags)
 {
 	struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm);
 	struct platform_device *pdev = to_platform_device(drm->dev);
-	struct resource *res;
 	u32 version;
 	int ret;
 
@@ -115,8 +114,7 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags)
 	atomic_set(&hdlcd->dma_end_count, 0);
 #endif
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hdlcd->mmio = devm_ioremap_resource(drm->dev, res);
+	hdlcd->mmio = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hdlcd->mmio)) {
 		DRM_ERROR("failed to map control registers area\n");
 		ret = PTR_ERR(hdlcd->mmio);
-- 
2.20.1.7.g153144c