From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-02.galae.net (smtpout-02.galae.net [185.246.84.56]) (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 9BEBA3CF66A for ; Mon, 13 Apr 2026 13:59:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.246.84.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776088768; cv=none; b=AN8zWJJC3xPEOkOftHYYnb/uf+5EcEJteyJ96HDg5rPV6O+QhjbytSlFKT74KB702AJ1FRdW/OvzbvLofh8DkEP1gj6mn+x9Nvush8DYPpaJ4671nJPqVmLKIwtMoUFWzCgY135IziAOVyQqch15rpznTGiIcGt2af1k4CC85h4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776088768; c=relaxed/simple; bh=yhwpUYV3koxw222RhY6rinc0UmrhHUfn1wcZ7deS4zg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=l4YAHOgLhhfXu6vc6syb/HYbmtGvN++Un+FTPSFMY8TE82rfL6JLhkU00N3qCblO0Jd7nkuuzwfx76EEG3q7+CWuhQqX+aHMjteafZKQWJeIaxx/FhJIYqlEabJMG3cuIkAtKIZK0tyl7gl36dw4KfJiCCAO5Gxl0hgaYF5GL0I= 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=Ti7YMkxF; arc=none smtp.client-ip=185.246.84.56 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="Ti7YMkxF" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id 6A92B1A31E4; Mon, 13 Apr 2026 13:59:26 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 38E8F5FFB9; Mon, 13 Apr 2026 13:59:26 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 93ECC1045001B; Mon, 13 Apr 2026 15:59:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1776088764; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=sIWxbJQA95xivsskyZYf1bJ8TvAp33O/yOkG3w0+aXY=; b=Ti7YMkxFRGkaAZevJe/bTWTMUX50+gor3lckUgGvafM8UALQp47vTxyshFqarkfTP8/mwP XhGRxzV0sm69GiviHCEOTFE66HbMqHJeh2dP94arpTsOzAdB3amykKpre2w8mQmEdefnCN rTpEE6ZBjn0hpfRmCllYKUqW78tpiu5uowKDjbT+gvsOm4H7S5aNSyU5bqgt6KwW6f5QyK PpdWPZZKtapQP0GjqPCLlG89NuFAwc5IvelZ8qLlSpEC6xvtPU1+YHOCNMuRkaJ9GpkWWS 7LcXH4RThk77pup2JWWZnCfPhYD86Ps1PKCJk0UzL9qqXpRoAMBvTfmJ3ehZ0g== From: Luca Ceresoli Date: Mon, 13 Apr 2026 15:58:40 +0200 Subject: [PATCH 08/10] drm/bridge: lt8713sx: switch to of_drm_get_bridge_by_endpoint() 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: 7bit Message-Id: <20260413-drm-bridge-alloc-getput-panel_or_bridge-v1-8-acd01cd79a1f@bootlin.com> References: <20260413-drm-bridge-alloc-getput-panel_or_bridge-v1-0-acd01cd79a1f@bootlin.com> In-Reply-To: <20260413-drm-bridge-alloc-getput-panel_or_bridge-v1-0-acd01cd79a1f@bootlin.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Xinliang Liu , Tian Tao , Xinwei Kong , Sumit Semwal , Yongqin Liu , John Stultz , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Tomi Valkeinen , Michal Simek Cc: Hui Pu , Ian Ray , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Luca Ceresoli X-Mailer: b4 0.15.1 X-Last-TLS-Session-Version: TLSv1.3 This driver calls drm_of_find_panel_or_bridge() with a NULL pointer in the @panel parameter, thus using a reduced feature set of that function. Replace this call with the simpler of_drm_get_bridge_by_endpoint(). Since of_drm_get_bridge_by_endpoint() increases the refcount of the returned bridge, ensure it is put on removal. To achieve this, instead of adding an explicit drm_bridge_put(), migrate to the bridge::next_bridge pointer which is automatically put when the bridge is eventually freed. Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/bridge/lontium-lt8713sx.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt8713sx.c b/drivers/gpu/drm/bridge/lontium-lt8713sx.c index 18fac6a46db4..0bee147633a5 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8713sx.c +++ b/drivers/gpu/drm/bridge/lontium-lt8713sx.c @@ -32,7 +32,6 @@ DECLARE_CRC8_TABLE(lt8713sx_crc_table); struct lt8713sx { struct device *dev; struct drm_bridge bridge; - struct drm_bridge *next_bridge; struct regmap *regmap; /* Protects all accesses to registers by stopping the on-chip MCU */ @@ -458,7 +457,7 @@ static int lt8713sx_bridge_attach(struct drm_bridge *bridge, struct lt8713sx *lt8713sx = container_of(bridge, struct lt8713sx, bridge); return drm_bridge_attach(encoder, - lt8713sx->next_bridge, + lt8713sx->bridge.next_bridge, bridge, flags); } @@ -537,8 +536,8 @@ static int lt8713sx_probe(struct i2c_client *client) if (IS_ERR(lt8713sx->regmap)) return dev_err_probe(dev, PTR_ERR(lt8713sx->regmap), "regmap i2c init failed\n"); - ret = drm_of_find_panel_or_bridge(lt8713sx->dev->of_node, 1, -1, NULL, - <8713sx->next_bridge); + ret = of_drm_get_bridge_by_endpoint(lt8713sx->dev->of_node, 1, -1, + <8713sx->bridge.next_bridge); if (ret < 0) return ret; -- 2.53.0