linux-kernel - Re: [PATCH 5/6] drm/exynos: hdmi: convert to of_drm_find_and_get

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Message-ID: <af154ebb-53b9-40eb-8ff9-089ed8bc3f04@samsung.com>
Date: Thu, 8 Jan 2026 10:51:15 +0100
From: Marek Szyprowski <m.szyprowski@...sung.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>, Kevin Hilman <khilman@...libre.com>, Jerome
	Brunet <jbrunet@...libre.com>, Martin Blumenstingl
	<martin.blumenstingl@...glemail.com>, Philipp Zabel
	<p.zabel@...gutronix.de>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer
	<s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Chun-Kuang Hu <chunkuang.hu@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Inki Dae <inki.dae@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>, Kyungmin Park
	<kyungmin.park@...sung.com>, Krzysztof Kozlowski <krzk@...nel.org>, Alim
	Akhtar <alim.akhtar@...sung.com>, Laurent Pinchart
	<laurent.pinchart+renesas@...asonboard.com>, Tomi Valkeinen
	<tomi.valkeinen+renesas@...asonboard.com>, Kieran Bingham
	<kieran.bingham+renesas@...asonboard.com>, Geert Uytterhoeven
	<geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>
Cc: Hui Pu <Hui.Pu@...ealthcare.com>, Thomas Petazzoni
	<thomas.petazzoni@...tlin.com>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev,
	linux-mediatek@...ts.infradead.org, linux-samsung-soc@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH 5/6] drm/exynos: hdmi: convert to
 of_drm_find_and_get_bridge()

On 07.01.2026 17:22, Luca Ceresoli wrote:
> of_drm_find_bridge() is deprecated. Move to its replacement
> of_drm_find_and_get_bridge() which gets a bridge reference, and ensure it
> is put when done.
>
> Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> ---
>   drivers/gpu/drm/exynos/exynos_hdmi.c | 4 +++-

Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>

>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 01813e11e6c6..bfcf2fa62fe1 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -1779,7 +1779,7 @@ static int hdmi_bridge_init(struct hdmi_context *hdata)
>   		return -EINVAL;
>   	}
>   
> -	hdata->bridge = of_drm_find_bridge(np);
> +	hdata->bridge = of_drm_find_and_get_bridge(np);
>   	of_node_put(np);
>   
>   	if (!hdata->bridge)
> @@ -2096,6 +2096,8 @@ static void hdmi_remove(struct platform_device *pdev)
>   
>   	put_device(&hdata->ddc_adpt->dev);
>   
> +	drm_bridge_put(hdata->bridge);
> +
>   	mutex_destroy(&hdata->mutex);
>   }
>   
>
Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland