diff options
| author | Marek Vasut <marex@denx.de> | 2022-04-11 03:47:27 +0300 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2022-04-25 00:54:05 +0300 |
| commit | f470cfe40bd853d8175b098365b862037be83578 (patch) | |
| tree | a7388e89637729418d5bcccff3e5a7166034d44e | |
| parent | 4dd024d4ad6570815876726dedf176482dfdb31f (diff) | |
| download | linux-f470cfe40bd853d8175b098365b862037be83578.tar.xz | |
drm/modes: Make width-mm/height-mm check in of_get_drm_panel_display_mode() mandatory
All users of this function require width-mm/height-mm DT property to be
present per their DT bindings, make width-mm/height-mm check mandatory.
It is generally a good idea to specify panel dimensions, so userspace
can configure e.g. scaling accordingly.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dmitry Osipenko <digetx@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
To: dri-devel@lists.freedesktop.org
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220411004728.68203-1-marex@denx.de
| -rw-r--r-- | drivers/gpu/drm/drm_modes.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index e699950cc34d..14b746f7ba97 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -735,8 +735,8 @@ EXPORT_SYMBOL_GPL(of_get_drm_display_mode); * @dmode: will be set to the return value * @bus_flags: information about pixelclk, sync and DE polarity * - * The Device Tree properties width-mm and height-mm will be read and set on - * the display mode if they are present. + * The mandatory Device Tree properties width-mm and height-mm + * are read and set on the display mode. * * Returns: * Zero on success, negative error code on failure. @@ -761,11 +761,11 @@ int of_get_drm_panel_display_mode(struct device_node *np, drm_bus_flags_from_videomode(&vm, bus_flags); ret = of_property_read_u32(np, "width-mm", &width_mm); - if (ret && ret != -EINVAL) + if (ret) return ret; ret = of_property_read_u32(np, "height-mm", &height_mm); - if (ret && ret != -EINVAL) + if (ret) return ret; dmode->width_mm = width_mm; |