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Date: Sun, 19 Mar 2023 18:27:49 +0100 From: Helge Deller <deller@....de> To: Rob Herring <robh@...nel.org>, Russell King <linux@...linux.org.uk> Cc: linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] video: ARM CLCD: Use of_address_to_resource() On 3/19/23 17:32, Rob Herring wrote: > Replace of_get_address() and of_translate_address() with single call > to of_address_to_resource(). With this, use ioremap() instead of > of_iomap() which would parse "reg" a second time. > > Signed-off-by: Rob Herring <robh@...nel.org> applied. Thanks! Helge > --- > drivers/video/fbdev/amba-clcd.c | 24 +++++++++++++----------- > 1 file changed, 13 insertions(+), 11 deletions(-) > > diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c > index f65c96d1394d..1289bfe6e872 100644 > --- a/drivers/video/fbdev/amba-clcd.c > +++ b/drivers/video/fbdev/amba-clcd.c > @@ -759,7 +759,7 @@ static int clcdfb_of_vram_setup(struct clcd_fb *fb) > { > int err; > struct device_node *memory; > - u64 size; > + struct resource res; > > err = clcdfb_of_init_display(fb); > if (err) > @@ -769,18 +769,20 @@ static int clcdfb_of_vram_setup(struct clcd_fb *fb) > if (!memory) > return -ENODEV; > > - fb->fb.screen_base = of_iomap(memory, 0); > - if (!fb->fb.screen_base) { > - of_node_put(memory); > - return -ENOMEM; > - } > > - fb->fb.fix.smem_start = of_translate_address(memory, > - of_get_address(memory, 0, &size, NULL)); > - fb->fb.fix.smem_len = size; > - of_node_put(memory); > + err = of_address_to_resource(memory, 0, &res); > + if (err) > + goto out; > > - return 0; > + fb->fb.screen_base = ioremap(res.start, resource_size(&res)); > + if (!fb->fb.screen_base) > + goto out; > + > + fb->fb.fix.smem_start = res.start; > + fb->fb.fix.smem_len = resource_size(&res); > +out: > + of_node_put(memory); > + return err; > } > > static int clcdfb_of_vram_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
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