linux-kernel - Re: [v1,2/3] drm/panel: ili9341: Respect deferred probe

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Date: Wed, 1 May 2024 00:50:20 +0800
From: Sui Jingfeng <sui.jingfeng@...ux.dev>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Randy Dunlap <rdunlap@...radead.org>, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org
Cc: Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg
 <sam@...nborg.org>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>
Subject: Re: [v1,2/3] drm/panel: ili9341: Respect deferred probe

Hi,


On 2024/4/25 22:26, Andy Shevchenko wrote:
> GPIO controller might not be available when driver is being probed.
> There are plenty of reasons why, one of which is deferred probe.
>
> Since GPIOs are optional, return any error code we got to the upper
> layer, including deferred probe. With that in mind, use dev_err_probe()
> in order to avoid spamming the logs.
>
> Fixes: 5a04227326b0 ("drm/panel: Add ilitek ili9341 panel driver")
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>


Reviewed-by: Sui Jingfeng <sui.jingfeng@...ux.dev>

-- 
Best regards,
Sui