From nobody Fri Dec 19 07:20:10 2025 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D5A7C3195F0 for ; Tue, 16 Dec 2025 18:00:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765908002; cv=none; b=Bh7CNc8c3RhK4uE/JW+vwMs6O2+pXjaW/bYfhQPr+B+bm8YKpowe92fAS0pIFy+r3a+8pL+JGh1VoCJGA+q6fa6Fq0EpueXlEDLpbUgjHMGfNuM0Q9GFBZQiGp0IIvTJcjRq74Y/6CRv3h7rPsZu3jg0j6eI+L3BuW8k77soOsg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765908002; c=relaxed/simple; bh=UuH4n7fnC1ntL8K6yhE/4dzmBLTpArEV3BFoZaY9HgI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=AAZ/E/nJImthdup4nqoAlR4mn4WCmD/I5T7b6nUd8k2/Vz+X/BbtE5lh7xs92geOogfUStIGn8ZxcCxbUARXm78wHjh/2Uw52aJzCmkA2izfF3AzfZj7AN+Zmr+ifXq6+mXPd3sGfJZE7niZ8iAwcVQSsRekHI+Hhb6Fj5pfFc8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=Yj4JB5Qj; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="Yj4JB5Qj" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id B9218C1A583; Tue, 16 Dec 2025 17:59:34 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id B6D5A6072F; Tue, 16 Dec 2025 17:59:54 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 3A5C2119A97E8; Tue, 16 Dec 2025 18:59:48 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1765907991; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=w07+z7x1px2/5P0sD/KMZgJOKOJk0feHbjhM11jcOSE=; b=Yj4JB5QjxEBsSUUmh/Tyl7o/8qHKSKegodrvvuWZHLUQhO4pBv/ziIOd/jn42KqNj0Mycc JHcGScdowUu9Fs3i3vJr1S8XYxhw8//xtQMQCT4v5qnlzyoXA+HjZgORReIbup5bUbmnwV S2FEN9KrdPMPEUIa5ymnnAMic/E11FQ7McV1OH0CrGamPVt6fmx/kQRD4uJ31xZ8jqd9Di Z4GpR3XfSHYlSlz8V5hBiSz98f2Q9Vd3tK3P4VNdz6KoMsqiSVyjVixpGOV381uuKSKAcl HpblAmiTtrxMovBRTbvqomw+dJeYXiixSn5PvTwMevz0psjPxrbf2xMgFEn80w== From: Luca Ceresoli Date: Tue, 16 Dec 2025 18:58:40 +0100 Subject: [PATCH v3 07/22] drm/bridge: ite-it66121: get/put the next bridge Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251216-drm-bridge-alloc-getput-drm_of_find_bridge-v3-7-b5165fab8058@bootlin.com> References: <20251216-drm-bridge-alloc-getput-drm_of_find_bridge-v3-0-b5165fab8058@bootlin.com> In-Reply-To: <20251216-drm-bridge-alloc-getput-drm_of_find_bridge-v3-0-b5165fab8058@bootlin.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jonathan Corbet , Alexey Brodkin , Phong LE , Liu Ying , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Kevin Hilman , Jerome Brunet , Martin Blumenstingl Cc: Hui Pu , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, Luca Ceresoli X-Mailer: b4 0.14.3 X-Last-TLS-Session-Version: TLSv1.3 This driver obtains a bridge pointer from of_drm_find_bridge() in the probe function and stores it until driver removal. of_drm_find_bridge() is deprecated. Move to of_drm_find_and_get_bridge() for the bridge to be refcounted and use bridge->next_bridge to put the reference on deallocation. Signed-off-by: Luca Ceresoli Reviewed-by: Maxime Ripard --- drivers/gpu/drm/bridge/ite-it66121.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/= ite-it66121.c index 0185f61e6e59..9246e9c15a6e 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -298,7 +298,6 @@ struct it66121_chip_info { struct it66121_ctx { struct regmap *regmap; struct drm_bridge bridge; - struct drm_bridge *next_bridge; struct drm_connector *connector; struct device *dev; struct gpio_desc *gpio_reset; @@ -596,7 +595,7 @@ static int it66121_bridge_attach(struct drm_bridge *bri= dge, if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) return -EINVAL; =20 - ret =3D drm_bridge_attach(encoder, ctx->next_bridge, bridge, flags); + ret =3D drm_bridge_attach(encoder, ctx->bridge.next_bridge, bridge, flags= ); if (ret) return ret; =20 @@ -1543,9 +1542,9 @@ static int it66121_probe(struct i2c_client *client) return -EINVAL; } =20 - ctx->next_bridge =3D of_drm_find_bridge(ep); + ctx->bridge.next_bridge =3D of_drm_find_and_get_bridge(ep); of_node_put(ep); - if (!ctx->next_bridge) { + if (!ctx->bridge.next_bridge) { dev_dbg(ctx->dev, "Next bridge not found, deferring probe\n"); return -EPROBE_DEFER; } --=20 2.52.0