Commit a40c0e81 authored by Amit Barzilai's avatar Amit Barzilai Committed by Helge Deller
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fbdev: clps711x-fb: Request memory region for MMIO 



Use devm_platform_get_and_ioremap_resource() for resource 0 (the MMIO
control register range) instead of open-coding platform_get_resource()
and devm_ioremap() separately. The helper requests the memory region
before mapping it, which registers the range in /proc/iomem and prevents
another driver from mapping the same registers.

This makes resource 0 consistent with resource 1 (the framebuffer),
which already uses devm_platform_get_and_ioremap_resource().

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: default avatarAmit Barzilai <amit.barzilai22@gmail.com>
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent d2386d9e

drivers/video/fbdev/clps711x-fb.c

+3 −6
Original line number Diff line number Diff line
@@ -216,12 +216,9 @@ static int clps711x_fb_probe(struct platform_device *pdev) 
	cfb = info->par;

	platform_set_drvdata(pdev, info);



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res)

		goto out_fb_release;

	cfb->base = devm_ioremap(dev, res->start, resource_size(res));

	if (!cfb->base) {

		ret = -ENOMEM;

	cfb->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);

	if (IS_ERR(cfb->base)) {

		ret = PTR_ERR(cfb->base);

		goto out_fb_release;

	}