On 29.03.23 12:56, Philipp Zabel wrote:
> Add a port of the kernel of_get_display_timing() that writes a
> struct fb_videomode instead of struct display_timing, which we
> don't have.
>
> Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Reviewed-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> ---
> drivers/video/of_display_timing.c | 22 ++++++++++++++++++++++
> include/fb.h | 2 ++
> 2 files changed, 24 insertions(+)
>
> diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c
> index 6fe1e1b08b6a..6082d454932d 100644
> --- a/drivers/video/of_display_timing.c
> +++ b/drivers/video/of_display_timing.c
> @@ -98,6 +98,28 @@ static int of_parse_display_timing(const struct device_node *np,
> return 0;
> }
>
> +/**
> + * of_get_display_timing - parse a display_timing entry
> + * @np: device_node with the timing subnode
> + * @name: name of the timing node
> + * @mode: fb_videomode struct to fill
> + **/
> +int of_get_display_timing(const struct device_node *np, const char *name,
> + struct fb_videomode *mode)
> +{
> + struct device_node *timing_np;
> +
> + if (!np)
> + return -EINVAL;
> +
> + timing_np = of_get_child_by_name(np, name);
> + if (!timing_np)
> + return -ENOENT;
> +
> + return of_parse_display_timing(timing_np, mode);
> +}
> +EXPORT_SYMBOL_GPL(of_get_display_timing);
> +
> /**
> * of_get_display_timings - parse all display_timing entries from a device_node
> * @np: device_node with the subnodes
> diff --git a/include/fb.h b/include/fb.h
> index bf5f688342fd..15bb74b99576 100644
> --- a/include/fb.h
> +++ b/include/fb.h
> @@ -147,6 +147,8 @@ struct fb_info {
> int shadowfb;
> };
>
> +int of_get_display_timing(const struct device_node *np, const char *name,
> + struct fb_videomode *mode);
> struct display_timings *of_get_display_timings(struct device_node *np);
> void display_timings_release(struct display_timings *);
>
--
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