Commit d2386d9e authored by Amit Barzilai's avatar Amit Barzilai Committed by Helge Deller
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fbdev: cobalt_lcdfb: Request memory region 



Use devm_platform_get_and_ioremap_resource() 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.

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 b1aaf111

drivers/video/fbdev/cobalt_lcdfb.c

+3 −9
Original line number Diff line number Diff line
@@ -295,19 +295,13 @@ static int cobalt_lcdfb_probe(struct platform_device *dev) 
	if (!info)

		return -ENOMEM;



	res = platform_get_resource(dev, IORESOURCE_MEM, 0);

	if (!res) {

	info->screen_base = devm_platform_get_and_ioremap_resource(dev, 0, &res);

	if (IS_ERR(info->screen_base)) {

		framebuffer_release(info);

		return -EBUSY;

		return PTR_ERR(info->screen_base);

	}



	info->screen_size = resource_size(res);

	info->screen_base = devm_ioremap(&dev->dev, res->start,

					 info->screen_size);

	if (!info->screen_base) {

		framebuffer_release(info);

		return -ENOMEM;

	}



	info->fbops = &cobalt_lcd_fbops;

	info->fix = cobalt_lcdfb_fix;