From: Liu Ying <victor.liu@nxp.com>
To: Marco Felsch <m.felsch@pengutronix.de>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>, Peng Fan <peng.fan@nxp.com>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
luca.ceresoli@bootlin.com, Frank Li <Frank.Li@nxp.com>
Cc: devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v11 2/3] drm/bridge: imx: Add i.MX93 parallel display format configuration support
Date: Tue, 10 Mar 2026 10:57:26 +0800 [thread overview]
Message-ID: <33e09cc9-69bd-468b-8361-b92a50686f74@nxp.com> (raw)
In-Reply-To: <20260303-v6-18-topic-imx93-parallel-display-v11-2-1b03733c8461@pengutronix.de>
Hi Marco, Luca,
On Tue, Mar 03, 2026 at 11:34:27AM +0100, Marco Felsch wrote:
[...]
> + next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0);
> + if (IS_ERR(next_bridge))
> + return dev_err_probe(dev, PTR_ERR(next_bridge),
> + "failed to get next bridge\n");
> + pdfc->dev = dev;
> + pdfc->bridge.of_node = dev->of_node;
> + pdfc->bridge.type = DRM_MODE_CONNECTOR_DPI;
> + pdfc->bridge.next_bridge = next_bridge;
When I was reviewing another patch[1], I was aware of the necessity of
calling drm_bridge_get() for next_bridge to balance the next bridge's
refcount put from __drm_bridge_free() for this bridge. I'd be good if
Luca may confirm this is correct. Sorry for bringing this up late.
[1] https://lore.kernel.org/all/5edd40f3-f83e-4a1b-99d4-1e595fc0e4cb@nxp.com/
--
Regards,
Liu Ying
next prev parent reply other threads:[~2026-03-10 2:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 10:34 [PATCH v11 0/3] Add i.MX91/93 parallel display support Marco Felsch
2026-03-03 10:34 ` [PATCH v11 1/3] dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode to schema and example Marco Felsch
2026-03-03 21:00 ` Frank Li
2026-03-04 15:48 ` Krzysztof Kozlowski
2026-03-04 15:49 ` Krzysztof Kozlowski
2026-03-04 17:04 ` Frank Li
2026-03-03 10:34 ` [PATCH v11 2/3] drm/bridge: imx: Add i.MX93 parallel display format configuration support Marco Felsch
2026-03-03 21:00 ` Frank Li
2026-03-03 21:22 ` Marco Felsch
2026-03-03 22:07 ` Frank Li
2026-03-03 22:20 ` Frank Li
2026-03-04 3:29 ` Liu Ying
2026-03-04 3:53 ` Frank Li
2026-03-04 3:32 ` Liu Ying
2026-03-05 14:37 ` Alexander Stein
2026-03-10 2:57 ` Liu Ying [this message]
2026-03-10 11:53 ` Luca Ceresoli
2026-03-11 3:15 ` Liu Ying
2026-03-11 19:45 ` Marco Felsch
2026-03-12 9:15 ` Liu Ying
2026-03-12 16:41 ` Luca Ceresoli
2026-03-03 10:34 ` [PATCH v11 3/3] arm64: dts: imx93: Add parallel display output nodes Marco Felsch
2026-03-03 10:42 ` Marco Felsch
2026-03-03 15:45 ` Frank Li
2026-03-03 15:50 ` Marco Felsch
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