From mboxrd@z Thu Jan 1 00:00:00 1970 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 2272A3CE4B5; Mon, 13 Apr 2026 13:59:12 +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=1776088754; cv=none; b=VfdgU6IXvAM64cS517LQewqsHJiC86LqVucl2NiApCWjf2YzQgScoMsaI144prEPxUR03ZiOWAJc78NDkhtO1UfFplnc6p3C7JCd2EqU3QtSuJ/RL+bTrvzD75FesHxkLxTsLYhvlcq4+3B6jtr2oFhqhW1/45uQCyJvDdkqUHc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776088754; c=relaxed/simple; bh=ZcGCXfwrorhXgjZHNbCjB/zUMwa9+029VAnWv2IkT4Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=mpZygnxAKoR60TW7k7vn5nwHXCnGj+/r/eaXhu6Z+PosPyfSGuYsJed8KFNC5+Mw5KX/9S7UPghaTUqwKDC74gQdMbkcBTAbiBJ6Tw0CCXncutPQzWpP29qbfMno/8MwQV/gPG2qN8eAOzb6Uls4ATgAfT1xhXcQBoaGN10C+60= 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=cY6og8rZ; 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="cY6og8rZ" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 6AB3DC5B1B7; Mon, 13 Apr 2026 13:59:48 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id CD7B65FFB9; Mon, 13 Apr 2026 13:59:11 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id B9E6A104513FE; Mon, 13 Apr 2026 15:59:05 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1776088750; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=bgJ6xvzwuq+SIrlbxp8JEF3JrKIocmxiifUktAKXeiM=; b=cY6og8rZBn863RkECXKB6Z9MXvEnG1wRHcpeX+aP6B3AysR5gKH9UzMDO0aaIbR/Ue0pDd BF6Xff0tJ44iHCK0hC0AUxD7k3Qxe83HWICwsAP0+y3pxW6EzB4oJzme7zbSiP3YNDvb6D zRDSG+LEcKpj5o7k1RjTIE88FER8GxyhEUzGfeBdADigPDot0pA5XFRXI60KZ5ZlYrNPYU YzSWbW+R3DrAAs6oYi2nDyn4M+2773vDzocRiVpEpvRtEWDaW40E/HjQGd3dubCFv0FgI9 TNr+K+APByNAjXASLTO96o3PFO0fxjYD2UmRK0rKuIF6+J3LFLbnPGcucopD7A== From: Luca Ceresoli Date: Mon, 13 Apr 2026 15:58:37 +0200 Subject: [PATCH 05/10] drm/bridge: lontium-lt9611uxc: 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-v1-5-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-lt9611uxc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c index 11aab07d88df..55b80a488c33 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -35,7 +35,6 @@ struct lt9611uxc { 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 */ @@ -284,7 +283,7 @@ static int lt9611uxc_bridge_attach(struct drm_bridge *bridge, { struct lt9611uxc *lt9611uxc = bridge_to_lt9611uxc(bridge); - return drm_bridge_attach(encoder, lt9611uxc->next_bridge, + return drm_bridge_attach(encoder, lt9611uxc->bridge.next_bridge, bridge, flags); } @@ -487,7 +486,7 @@ static int lt9611uxc_parse_dt(struct device *dev, lt9611uxc->dsi1_node = of_graph_get_remote_node(dev->of_node, 1, -1); - return drm_of_find_panel_or_bridge(dev->of_node, 2, -1, NULL, <9611uxc->next_bridge); + return of_drm_get_bridge_by_endpoint(dev->of_node, 2, -1, <9611uxc->bridge.next_bridge); } static int lt9611uxc_gpio_init(struct lt9611uxc *lt9611uxc) -- 2.53.0