From nobody Tue Feb 10 05:41:23 2026 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 242EE2F6910 for ; Fri, 9 Jan 2026 07:32:13 +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=1767943934; cv=none; b=UuG9PYXOl71jx8aHfbwkxU1RrAWnq9xjBowm2YF3aFcRLLSinLRSSf3Tvyjcw2/h6n30j53+vhZPLdZn80ElDIvYN+IJe+uiVpw5bFGvC4gbn/tJFy11NzkbNcdwHxXFBko8N3TkgHlFQCKn63dqliian9+eKvnJ/2EV1HjH2j0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767943934; c=relaxed/simple; bh=MugQDuFuK5JOnrxc5w6SX22Xm2uYlCfAP1WuWo+fTG8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=uypqvLaTNMWKoyXc+nxSV6QyF1lKm/3UGrBdKeHqBU36D4n6qLmderlhTW+KKfnI71LGEpTbILZMH3ZreCCu9ZUMjG+R3s2wAisCqlXga/YlBjo3HTLRaHlpch83P46XqXyblnkniwcKjSgkcgLzb84KJfot/6qYINEdJiK6ygE= 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=XRC/D36U; 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="XRC/D36U" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-02.galae.net (Postfix) with ESMTPS id ED8511A273A; Fri, 9 Jan 2026 07:32:11 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id C18C260734; Fri, 9 Jan 2026 07:32:11 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 4C144103C87F9; Fri, 9 Jan 2026 08:32:07 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1767943930; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=mRT58lzEzd+gLCQT0DaHvPwQU+Zbax+UmuJHfDra6JM=; b=XRC/D36UGx21h9ZgVCVfwREKXJPrX7XxTKk0lpFMtj8GPfDjB8N+YAtS5MxP/Em+bsvFdb 6+EIa7mzQ2QgdHHL/P3aRzbeT+Nxh8JWcN1Iq9Dr7Zl1wSovDssC4GjE+uyONBtJEpSaEI sXvsQVvuTvp0+B+kOoBUI9CgM9ICtcCTfRDybNsqVtj09FrpPYnYZHVdSWQSSAoOl3pH3I qlHUp96T9k4SP8Pw3AnBpPqlAm1NBHKxg074dLyUPx7sFXITMCW8IKHc3qic3JXYzvgEsj u/gvOVrM4OqVf+di3o2h7rQcGxN4aZ2GiZkdkOLnX2ElBJOzN/6hLeqCPPKN+Q== From: Luca Ceresoli Date: Fri, 09 Jan 2026 08:31:38 +0100 Subject: [PATCH v2 07/12] drm/bridge: lt8912b: convert to of_drm_find_and_get_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: <20260109-drm-bridge-alloc-getput-drm_of_find_bridge-2-v2-7-8bad3ef90b9f@bootlin.com> References: <20260109-drm-bridge-alloc-getput-drm_of_find_bridge-2-v2-0-8bad3ef90b9f@bootlin.com> In-Reply-To: <20260109-drm-bridge-alloc-getput-drm_of_find_bridge-2-v2-0-8bad3ef90b9f@bootlin.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Philippe Cornu , benjamin.gaignard@linaro.org, Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Adrien Grassein , Liu Ying , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Inki Dae , Jagan Teki , Marek Szyprowski Cc: Hui Pu , Thomas Petazzoni , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Luca Ceresoli X-Mailer: b4 0.14.3 X-Last-TLS-Session-Version: TLSv1.3 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 by using the drm_bridge::next_bridge pointer. Acked-by: Maxime Ripard Signed-off-by: Luca Ceresoli --- drivers/gpu/drm/bridge/lontium-lt8912b.c | 31 +++++++++++++++-------------= --- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bri= dge/lontium-lt8912b.c index 342374cb8fc6..8a0b48efca58 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -35,7 +35,6 @@ struct lt8912 { struct regmap *regmap[I2C_MAX_IDX]; =20 struct device_node *host_node; - struct drm_bridge *hdmi_port; =20 struct mipi_dsi_device *dsi; =20 @@ -407,8 +406,8 @@ lt8912_connector_detect(struct drm_connector *connector= , bool force) { struct lt8912 *lt =3D connector_to_lt8912(connector); =20 - if (lt->hdmi_port->ops & DRM_BRIDGE_OP_DETECT) - return drm_bridge_detect(lt->hdmi_port, connector); + if (lt->bridge.next_bridge->ops & DRM_BRIDGE_OP_DETECT) + return drm_bridge_detect(lt->bridge.next_bridge, connector); =20 return lt8912_check_cable_status(lt); } @@ -429,7 +428,7 @@ static int lt8912_connector_get_modes(struct drm_connec= tor *connector) u32 bus_format =3D MEDIA_BUS_FMT_RGB888_1X24; int ret, num; =20 - drm_edid =3D drm_bridge_edid_read(lt->hdmi_port, connector); + drm_edid =3D drm_bridge_edid_read(lt->bridge.next_bridge, connector); drm_edid_connector_update(connector, drm_edid); if (!drm_edid) return 0; @@ -519,8 +518,8 @@ static int lt8912_bridge_connector_init(struct drm_brid= ge *bridge) struct lt8912 *lt =3D bridge_to_lt8912(bridge); struct drm_connector *connector =3D <->connector; =20 - if (lt->hdmi_port->ops & DRM_BRIDGE_OP_HPD) { - drm_bridge_hpd_enable(lt->hdmi_port, lt8912_bridge_hpd_cb, lt); + if (lt->bridge.next_bridge->ops & DRM_BRIDGE_OP_HPD) { + drm_bridge_hpd_enable(lt->bridge.next_bridge, lt8912_bridge_hpd_cb, lt); connector->polled =3D DRM_CONNECTOR_POLL_HPD; } else { connector->polled =3D DRM_CONNECTOR_POLL_CONNECT | @@ -529,7 +528,7 @@ static int lt8912_bridge_connector_init(struct drm_brid= ge *bridge) =20 ret =3D drm_connector_init(bridge->dev, connector, <8912_connector_funcs, - lt->hdmi_port->type); + lt->bridge.next_bridge->type); if (ret) goto exit; =20 @@ -549,7 +548,7 @@ static int lt8912_bridge_attach(struct drm_bridge *brid= ge, struct lt8912 *lt =3D bridge_to_lt8912(bridge); int ret; =20 - ret =3D drm_bridge_attach(encoder, lt->hdmi_port, bridge, + ret =3D drm_bridge_attach(encoder, lt->bridge.next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); if (ret < 0) { dev_err(lt->dev, "Failed to attach next bridge (%d)\n", ret); @@ -585,8 +584,8 @@ static void lt8912_bridge_detach(struct drm_bridge *bri= dge) =20 lt8912_hard_power_off(lt); =20 - if (lt->connector.dev && lt->hdmi_port->ops & DRM_BRIDGE_OP_HPD) - drm_bridge_hpd_disable(lt->hdmi_port); + if (lt->connector.dev && lt->bridge.next_bridge->ops & DRM_BRIDGE_OP_HPD) + drm_bridge_hpd_disable(lt->bridge.next_bridge); } =20 static enum drm_mode_status @@ -611,8 +610,8 @@ lt8912_bridge_detect(struct drm_bridge *bridge, struct = drm_connector *connector) { struct lt8912 *lt =3D bridge_to_lt8912(bridge); =20 - if (lt->hdmi_port->ops & DRM_BRIDGE_OP_DETECT) - return drm_bridge_detect(lt->hdmi_port, connector); + if (lt->bridge.next_bridge->ops & DRM_BRIDGE_OP_DETECT) + return drm_bridge_detect(lt->bridge.next_bridge, connector); =20 return lt8912_check_cable_status(lt); } @@ -626,8 +625,8 @@ static const struct drm_edid *lt8912_bridge_edid_read(s= truct drm_bridge *bridge, * edid must be read through the ddc bus but it must be * given to the hdmi connector node. */ - if (lt->hdmi_port->ops & DRM_BRIDGE_OP_EDID) - return drm_bridge_edid_read(lt->hdmi_port, connector); + if (lt->bridge.next_bridge->ops & DRM_BRIDGE_OP_EDID) + return drm_bridge_edid_read(lt->bridge.next_bridge, connector); =20 dev_warn(lt->dev, "The connected bridge does not supports DRM_BRIDGE_OP_E= DID\n"); return NULL; @@ -723,8 +722,8 @@ static int lt8912_parse_dt(struct lt8912 *lt) goto err_free_host_node; } =20 - lt->hdmi_port =3D of_drm_find_bridge(port_node); - if (!lt->hdmi_port) { + lt->bridge.next_bridge =3D of_drm_find_and_get_bridge(port_node); + if (!lt->bridge.next_bridge) { ret =3D -EPROBE_DEFER; dev_err_probe(lt->dev, ret, "%s: Failed to get hdmi port\n", __func__); goto err_free_host_node; --=20 2.52.0