Am Donnerstag, dem 19.05.2022 um 01:36 +0200 schrieb Marek Vasut:
> Handle empty data-lanes = < >; property, which translates to
> dsi_lanes = 0 as invalid.
>
I'm having a hard time imagining a situation where on would add a empty
data-lanes property to the DT. But then 0 DSI lanes is clearly a broken
configuration, so:
Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Fixes: bbfd3190b6562 ("drm/bridge: tc358767: Add DSI-to-DPI mode support")
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Jonas Karlman <jonas@xxxxxxxxx>
> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Cc: Marek Vasut <marex@xxxxxxx>
> Cc: Maxime Ripard <maxime@xxxxxxxxxx>
> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> Cc: Robert Foss <robert.foss@xxxxxxxxxx>
> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/bridge/tc358767.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
> index 7366968dd7b21..84e6b5aa8dd1f 100644
> --- a/drivers/gpu/drm/bridge/tc358767.c
> +++ b/drivers/gpu/drm/bridge/tc358767.c
> @@ -1902,7 +1902,7 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc)
> of_node_put(host_node);
> of_node_put(endpoint);
>
> - if (dsi_lanes < 0 || dsi_lanes > 4)
> + if (dsi_lanes <= 0 || dsi_lanes > 4)
> return -EINVAL;
>
> if (!host)
