Re: [PATCH] fbdev: imxfb: Convert to devm_platform_ioremap_resource()
From: Geert Uytterhoeven
Date: Mon Jul 10 2023 - 03:10:50 EST
Hi Yangtao,
On Tue, Jul 4, 2023 at 11:38 AM Yangtao Li <frank.li@xxxxxxxx> wrote:
> Use devm_platform_ioremap_resource() to simplify code.
>
> Signed-off-by: Yangtao Li <frank.li@xxxxxxxx>
Thanks for your patch, which is now commit c1cd7a7a231a26c6 ("fbdev:
imxfb: Convert to devm_platform_ioremap_resource()") in fbdev/for-next
> --- 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));
This part is not directly related, but a bug fix for commit
b083c22d51148f3d ("video: fbdev: imxfb: Convert request_mem_region +
ioremap to devm_ioremap_resource") in v6.0.
Please do not mix bug fixes with other changes.
The stable teams want to backport only bugfixes .
> failed_of_parse:
> kfree(info->pseudo_palette);
> failed_init:
> --
> 2.39.0
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds