linux-kernel - Re: [PATCH v2 3/9] drm/bridge: imx93-mipi-dsi: use drm_bridge_chain_get_last

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Message-ID: <d8d3d252-1050-4040-9260-281123c15a09@nxp.com>
Date: Mon, 4 Aug 2025 11:42:14 +0800
From: Liu Ying <victor.liu@....com>
To: Luca Ceresoli <luca.ceresoli@...tlin.com>,
 Andrzej Hajda <andrzej.hajda@...el.com>,
 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>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>,
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
 Philipp Zabel <p.zabel@...gutronix.de>
Cc: Hui Pu <Hui.Pu@...ealthcare.com>,
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
 linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 3/9] drm/bridge: imx93-mipi-dsi: use
 drm_bridge_chain_get_last_bridge()

On 08/01/2025, Luca Ceresoli wrote:
> Use drm_bridge_chain_get_last_bridge() instead of open coding a loop with
> two invocations of drm_bridge_get_next_bridge() per iteration.
> 
> Besides being cleaner and more efficient, this change is necessary in
> preparation for drm_bridge_get_next_bridge() to get a reference to the
> returned bridge.
> 
> Reviewed-by: Maxime Ripard <mripard@...nel.org>
> Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> ---
>  drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)

Reviewed-by: Liu Ying <victor.liu@....com>