linux-kernel - Re: [PATCH v6 10/26] drm/bridge: add devm_drm_of_get_bridge_by

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Message-ID: <5izgpfrkxrcbcbzr7w5lpm6tidwl4lj66tmnm6l6xmncu6t3uk@2mswjcmi34el>
Date: Fri, 7 Feb 2025 04:53:32 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Luca Ceresoli <luca.ceresoli@...tlin.com>
Cc: Simona Vetter <simona@...ll.ch>, Inki Dae <inki.dae@...sung.com>, 
	Jagan Teki <jagan@...rulasolutions.com>, Marek Szyprowski <m.szyprowski@...sung.com>, 
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, Daniel Thompson <danielt@...nel.org>, 
	Andrzej Hajda <andrzej.hajda@...el.com>, Jonathan Corbet <corbet@....net>, 
	Sam Ravnborg <sam@...nborg.org>, Boris Brezillon <bbrezillon@...nel.org>, 
	Nicolas Ferre <nicolas.ferre@...rochip.com>, Alexandre Belloni <alexandre.belloni@...tlin.com>, 
	Claudiu Beznea <claudiu.beznea@...on.dev>, Jessica Zhang <quic_jesszhan@...cinc.com>, 
	Paul Kocialkowski <contact@...lk.fr>, Maxime Ripard <mripard@...nel.org>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Jonas Karlman <jonas@...boo.se>, 
	Jernej Skrabec <jernej.skrabec@...il.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, 
	Hervé Codina <herve.codina@...tlin.com>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-doc@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Subject: Re: [PATCH v6 10/26] drm/bridge: add devm_drm_of_get_bridge_by_node()

On Thu, Feb 06, 2025 at 07:14:25PM +0100, Luca Ceresoli wrote:
> devm_drm_of_get_bridge(), which is based on graph links, is the recommended
> function to get a pointer to the following bridge.
> 
> This is valid even for panels, for which the recommended device tree
> description is via graph links and not (or not only) panel subnodes of a
> panel controller (e.g. "dsi@...4" controller node with a "panel@0"
> subnode).
> 
> However there are drivers supporting the panel subnode description in

I'd say, name them here (at least the one which we looked upon).

> addition to the graph links. For those drivers add a _by_node variant that
> takes the node of the target node.
> 
> Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> 

-- 
With best wishes
Dmitry