[PATCH] drm/rockchip: lvds: do not print error message when deferring probe

[Quentin Schulz]

Hi Fabio,

On 11/17/23 20:27, Fabio Estevam wrote:
> Hi Quentin,
> 
> On Fri, Nov 17, 2023 at 3:31 PM Quentin Schulz <foss+kernel at 0leil.net> wrote:
>>
>> From: Quentin Schulz <quentin.schulz at theobroma-systems.com>
>>
>> This scary message may happen if the panel or bridge is not probed
>> before the LVDS controller is, resulting in some head scratching because
>> the LVDS panel is actually working, since a later try will eventually
>> find the panel or bridge.
>>
>> Therefore let's demote this error message into a debug message to not
>> scare users unnecessarily.
> ...
> 
>> diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c
>> index f0f47e9abf5a..52e2ce2a61a8 100644
>> --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c
>> +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c
>> @@ -577,7 +577,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master,
>>                  ret = -EINVAL;
>>                  goto err_put_port;
>>          } else if (ret) {
>> -               DRM_DEV_ERROR(dev, "failed to find panel and bridge node\n");
>> +               DRM_DEV_DEBUG(dev, "failed to find panel and bridge node\n");
>>                  ret = -EPROBE_DEFER;
> 
> What about using dev_err_probe() instead?

Either is fine by me, will send a v2 and DRM maintainers can decide for 
themselves before merging :)

Cheers,
Quentin