From nobody Sun Feb 8 05:27:01 2026 Received: from out-184.mta0.migadu.com (out-184.mta0.migadu.com [91.218.175.184]) (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 3632118B15 for ; Mon, 11 Mar 2024 08:58:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710147506; cv=none; b=YDhlduS2B0Yd/jvtEPWlFAQVKyM6vNfrfXmnNSVcOoaVOppFf3kj/Ri7MQi+6/91lfgrboojZ8yTcRW1rd5a9S5oW1Y61t23C9UnxXJD+SdCRXfrLTyE+eL+gkUu7/foQyzA8yTzS98Z50N2b/fEVNqgf3RudJm+WdVM5AafjLg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710147506; c=relaxed/simple; bh=g2uyYKP3fTMNqz1inMg+JCYrTWQJzGEy4xF64bwHe0Q=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=sA3CBo8UiKWayNGCPWSumWvkTBq+B3e6leVn2DtddnWGYL+GQGUAh/Ah9G1GsItcDopIxu9uX8WJuBclvczQuygEZWz7F+NkgkuQSh8IuqJjFo7brOb5+dNzD820FoEm0eipKxklLItP7grDZ3daaJxsYKUbnjRHYzGsnWJwDXk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Ywxh3D3S; arc=none smtp.client-ip=91.218.175.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Ywxh3D3S" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1710147503; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AdzVq0hSo8fS18z5xoeY8+4STJ0X8hxCUiiSMI/5/9M=; b=Ywxh3D3SbrIHx8AEv7gkKxSf5+SpuEuijnz6eh4LyUC/DpETfJQ2PqNRZK5hpW4G+2gp2d cMpUqMBV16jezAgqshRIwG7EJiTvGdCgMlwVkKHQZgzxitnpjeaJYKXhsByZCQJg8ODzsf niiBVJt6/TS1cdn8urUBCRGpIq2Ng6Q= From: Sui Jingfeng To: Andrzej Hajda Cc: Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Phong LE , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Sui Jingfeng Subject: [PATCH v3 2/5] drm/bridge: simple-bridge: Use fwnode API to acquire device properties Date: Mon, 11 Mar 2024 16:56:56 +0800 Message-Id: <20240311085659.244043-3-sui.jingfeng@linux.dev> In-Reply-To: <20240311085659.244043-1-sui.jingfeng@linux.dev> References: <20240311085659.244043-1-sui.jingfeng@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" Make this driver less DT-dependent by calling the freshly created helpers, should be no functional changes for DT based systems. But open the door for otherwise use cases. Even though there is no user emerged yet, this still do no harms. Signed-off-by: Sui Jingfeng --- drivers/gpu/drm/bridge/simple-bridge.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/bridge/simple-bridge.c b/drivers/gpu/drm/bridg= e/simple-bridge.c index 5813a2c4fc5e..3b09bdd5ad4d 100644 --- a/drivers/gpu/drm/bridge/simple-bridge.c +++ b/drivers/gpu/drm/bridge/simple-bridge.c @@ -9,7 +9,6 @@ #include #include #include -#include #include #include =20 @@ -169,33 +168,32 @@ static const struct drm_bridge_funcs simple_bridge_br= idge_funcs =3D { =20 static int simple_bridge_probe(struct platform_device *pdev) { + struct fwnode_handle *fwnode =3D dev_fwnode(&pdev->dev); struct simple_bridge *sbridge; - struct device_node *remote; + int ret; =20 sbridge =3D devm_kzalloc(&pdev->dev, sizeof(*sbridge), GFP_KERNEL); if (!sbridge) return -ENOMEM; platform_set_drvdata(pdev, sbridge); =20 - sbridge->info =3D of_device_get_match_data(&pdev->dev); + sbridge->info =3D device_get_match_data(&pdev->dev); =20 /* Get the next bridge in the pipeline. */ - remote =3D of_graph_get_remote_node(pdev->dev.of_node, 1, -1); - if (!remote) - return -EINVAL; - - sbridge->next_bridge =3D of_drm_find_bridge(remote); - of_node_put(remote); - + sbridge->next_bridge =3D drm_bridge_find_next_bridge_by_fwnode(fwnode, 1); if (!sbridge->next_bridge) { dev_dbg(&pdev->dev, "Next bridge not found, deferring probe\n"); return -EPROBE_DEFER; + } else if (IS_ERR(sbridge->next_bridge)) { + ret =3D PTR_ERR(sbridge->next_bridge); + dev_err(&pdev->dev, "Error on finding the next bridge: %d\n", ret); + return ret; } =20 /* Get the regulator and GPIO resources. */ sbridge->vdd =3D devm_regulator_get_optional(&pdev->dev, "vdd"); if (IS_ERR(sbridge->vdd)) { - int ret =3D PTR_ERR(sbridge->vdd); + ret =3D PTR_ERR(sbridge->vdd); if (ret =3D=3D -EPROBE_DEFER) return -EPROBE_DEFER; sbridge->vdd =3D NULL; @@ -210,9 +208,9 @@ static int simple_bridge_probe(struct platform_device *= pdev) =20 /* Register the bridge. */ sbridge->bridge.funcs =3D &simple_bridge_bridge_funcs; - sbridge->bridge.of_node =3D pdev->dev.of_node; sbridge->bridge.timings =3D sbridge->info->timings; =20 + drm_bridge_set_node(&sbridge->bridge, fwnode); drm_bridge_add(&sbridge->bridge); =20 return 0; --=20 2.34.1