Re: [PATCH] drm: of: Fix drm_of_get_data_lanes_count_ep() return value documentation

[Maxime Ripard <mripard@kernel.org>]

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On Thu, Jan 15, 2026 at 03:45:53AM +0100, Marek Vasut wrote:
> Update drm_of_get_data_lanes_count_ep() return value documentation
> to match the drm_of_get_data_lanes_count() return value documentation.
> The drm_of_get_data_lanes_count_ep() is only a wrapper around the
> drm_of_get_data_lanes_count() and therefore returns the same error
> codes.
> 
> Fixes: fc801750b197 ("drm: of: Add drm_of_get_data_lanes_count and drm_of_get_data_lanes_ep")
> Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
> ---
> Cc: David Airlie <airlied@gmail.com>
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Simona Vetter <simona@ffwll.ch>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: dri-devel@lists.freedesktop.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-renesas-soc@vger.kernel.org
> ---
>  drivers/gpu/drm/drm_of.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
> index 4f65ce729a473..cfd0518174de8 100644
> --- a/drivers/gpu/drm/drm_of.c
> +++ b/drivers/gpu/drm/drm_of.c
> @@ -539,8 +539,8 @@ EXPORT_SYMBOL_GPL(drm_of_get_data_lanes_count);
>   *
>   * Return:
>   * * min..max - positive integer count of "data-lanes" elements
> - * * -EINVAL - the "data-mapping" property is unsupported
> - * * -ENODEV - the "data-mapping" property is missing
> + * * -ve - the "data-lanes" property is missing or invalid

I have no idea what "ve" means in that context. We should rephrase or
pick something more obvious.

Maxime

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