linux-kernel - [PATCH] fbdev: imxfb: Convert to devm_platform_ioremap

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Date:   Tue,  4 Jul 2023 17:36:52 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Helge Deller <deller@....de>, Shawn Guo <shawnguo@...nel.org>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Cc:     Yangtao Li <frank.li@...o.com>, linux-fbdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] fbdev: imxfb: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.

Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 drivers/video/fbdev/imxfb.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index adf36690c342..517eb65bbaa6 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -868,7 +868,6 @@ static int imxfb_probe(struct platform_device *pdev)
 	struct imxfb_info *fbi;
 	struct lcd_device *lcd;
 	struct fb_info *info;
-	struct resource *res;
 	struct imx_fb_videomode *m;
 	const struct of_device_id *of_id;
 	struct device_node *display_np;
@@ -885,10 +884,6 @@ static int imxfb_probe(struct platform_device *pdev)
 	if (of_id)
 		pdev->id_entry = of_id->data;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
-
 	info = framebuffer_alloc(sizeof(struct imxfb_info), &pdev->dev);
 	if (!info)
 		return -ENOMEM;
@@ -970,7 +965,7 @@ static int imxfb_probe(struct platform_device *pdev)
 		goto failed_getclock;
 	}
 
-	fbi->regs = devm_ioremap_resource(&pdev->dev, res);
+	fbi->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(fbi->regs)) {
 		ret = PTR_ERR(fbi->regs);
 		goto failed_ioremap;
@@ -1043,7 +1038,6 @@ static int imxfb_probe(struct platform_device *pdev)
 failed_map:
 failed_ioremap:
 failed_getclock:
-	release_mem_region(res->start, resource_size(res));
 failed_of_parse:
 	kfree(info->pseudo_palette);
 failed_init:
-- 
2.39.0