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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2023-03-30 14:46:41 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2023-04-05 11:54:37 +0200 |
| commit | 9190f984ec2cd0fee523a7be640672c8202bdf51 (patch) | |
| tree | 9bb5d1eb8c7dceed5d4a5d2082200ef28412969d | |
| parent | 28e00cb53bf2d5f7bf80a84156202fa2ab8fadd7 (diff) | |
| download | barebox-9190f984ec2cd0fee523a7be640672c8202bdf51.tar.gz | |
video: Add of_get_display_timing
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@pengutronix.de>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20230330124643.3562397-2-p.zabel@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/video/of_display_timing.c | 22 | ||||
| -rw-r--r-- | include/fb.h | 2 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c index 6fe1e1b08b..6082d45493 100644 --- a/drivers/video/of_display_timing.c +++ b/drivers/video/of_display_timing.c @@ -99,6 +99,28 @@ static int of_parse_display_timing(const struct device_node *np, } /** + * 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 bf5f688342..15bb74b995 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 *); |