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