| Message ID | 20230319163241.226984-1-robh@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | video: ARM CLCD: Use of_address_to_resource() | expand |
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@kernel.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)
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)
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@kernel.org> --- drivers/video/fbdev/amba-clcd.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-)