linux-kernel - Re: [PATCH 01/26] drm/bridge: add drm_of_find

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Message-ID: <pv56bl4p7lfflloocozxaeufd6udkk3jhehrtne65cidrvlfwn@wvrkw6mjmhwp>
Date: Mon, 24 Nov 2025 11:15:04 +0100
From: Maxime Ripard <mripard@...nel.org>
To: Luca Ceresoli <luca.ceresoli@...tlin.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>, 
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Subject: Re: [PATCH 01/26] drm/bridge: add drm_of_find_bridge()

Hi,

On Wed, Nov 19, 2025 at 02:05:32PM +0100, Luca Ceresoli wrote:
>  #ifdef CONFIG_OF
> +/**
> + * drm_of_find_bridge - find the bridge corresponding to the device node in
> + *			the global bridge list
> + * @np: device node
> + *
> + * The refcount of the returned bridge is incremented. Use drm_bridge_put()
> + * when done with it.
> + *
> + * RETURNS:
> + * drm_bridge control struct on success, NULL on failure
> + */
> +struct drm_bridge *drm_of_find_bridge(struct device_node *np)

So the convention we've mostly had was that the first argument would
define the prefix, ie. if we pass a drm_* pointer, the prefix is drm, if
we pass a device_node pointer, then the prefix is of.

Considering that convention, of_drm_find_bridge would be the ideal
candidate, but we can't use that obviously. What about
of_drm_find_and_get_bridge, or of_drm_get_bridge?

Maxime

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