From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 12977CFC28B for ; Fri, 21 Nov 2025 14:54:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Content-Transfer-Encoding:Content-Type:In-Reply-To:References:Cc:To:Subject: From:MIME-Version:Date:Message-ID:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ETN4gl1iZbhJeLn6OCDI+9u79qwxOMAaoq4ImqB9HJI=; b=tR4AFvKYnUIxwaNHnSWCRJruLV KMHvxOSojEJvqakuZMTarpFEOyWDYaJr961ZlrltaoFzUwXWUjpLw00xKHYD5QqoucuvJmsiwynKz oZiehyJ04eFCuYDgzaHjPjwIVpUTkVc/K5QQS2BmzhUTbOJykpztgEetceU6GXQZXCOxCWGsBrCht 998Um1+sw3Oj1bY8QmPeA+riyVEAtJVpfFQM2vzOk+O+j2VeOK04RvAgl9oFUGEXLbn6KY+Dv7aaw jLDJKjGfN/LO1s95IifM2xI0I7OY2MzmtBPZTA/UrPu0RQusqGm1/Xiujo1dvtMuJbX8KKNCr+J9/ fP1jLlfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vMSWn-00000008YLZ-4ANS; Fri, 21 Nov 2025 14:54:25 +0000 Received: from mail-wm1-x32c.google.com ([2a00:1450:4864:20::32c]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vMSWj-00000008YJw-3O2B for linux-arm-kernel@lists.infradead.org; Fri, 21 Nov 2025 14:54:24 +0000 Received: by mail-wm1-x32c.google.com with SMTP id 5b1f17b1804b1-4779a4fc95aso21456465e9.1 for ; Fri, 21 Nov 2025 06:54:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1763736860; x=1764341660; darn=lists.infradead.org; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:subject:reply-to:from:user-agent :mime-version:date:message-id:from:to:cc:subject:date:message-id :reply-to; bh=ETN4gl1iZbhJeLn6OCDI+9u79qwxOMAaoq4ImqB9HJI=; b=el6fFxeBIhECIp1WdMk0ohsmkhZ41j6JsvgoYS+w9EFItT7+MoPauQgX0cnT0a1sKR 60NRyn42nuEWKTAIQogtJTWes+WN1onUH0jmHBLNZtQw5wSACzIRRVU5Uz9CJPqzh6X5 kd/SBzWqhnig4ZYD+TMLhN/qWdSvDP8payLl9Su1QdpluXXJfblp2HCYlh7YAlpYEbnJ eChNkTD2uxEKfOHoEWr9R2kywORrZTADUIfCPZLnHdRWfWSwQNiR+UH0Yv0V9TI6n+ge SmaSIuY3shiXNEtR3aNhMrXONW/3rVAbebGj/CEKgfrFq9b8WsqleVVUweffWcP5YkZi 46mA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763736860; x=1764341660; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:references:cc:to:subject:reply-to:from:user-agent :mime-version:date:message-id:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ETN4gl1iZbhJeLn6OCDI+9u79qwxOMAaoq4ImqB9HJI=; b=aXEr07iMAwHyLuekbOGheBsOFL2v0MhSurR3jQ/EiG0EtiP6Hup/qMhaNlDLE3Bfyb Qctzj4dLSHvk1HltLWdiKTK0ZDGyvlP64pdL19izx5vgY7UM+T6h0qObNWX0yHGF6Qvv BqFiR/2hE6ED0FJjORabh2y028Fwb2G9mUitgdz31u5ry9TXwMOxoRIHaDey5WBeG0f+ bVkJ5ME7cji3N7djJZICo2FBvEm90vegi+uROGfnYgX0exG62sVyLl/2FLwJgd8MIeDj FEIVnfn0YxzdVVkkO3ZUKpE8ksqp7RW/hzdb4nGRo5WB7KPsLrhbCjb4Cl8hehfPjzHn oYDQ== X-Forwarded-Encrypted: i=1; AJvYcCU32a4rbGhb1ovRT1mCeevD0j7bHKBgJmK/hDYv4FmS/GVEMoru75kgV+Kq7CP6QYTVI2VWuErlO/c90NGOk7Xy@lists.infradead.org X-Gm-Message-State: AOJu0YwJPX4oipnu6Th4ox3dAPJWmDKlS/RoiRIzbWAEW4UuCeOtYCQv uUoYar5pq1MnNPiH1KCjVprXWp33Y7G9I1WT9PZzAHiMSouC/myrGwYDY5zb1Od2avI= X-Gm-Gg: ASbGncuzIaENRbAUwZtzggC9YAL6IuryXw6epSobkh0vkicxzHgcJ+dYwb2DjrBnwS0 PLYjDE0pm9jm2MdcpUZMiq5uxuqluWaOTE80CpF5HES2p6Sb6MrQr8qgV4P8jjRxn216VY6ARLS iyzZ+55WqJQXpkeztIg2sILsQxaUd8k6VbpU8or7febw42NF/3G1sbwMqmW0KVtL5CvnU4VvCBo RczicMaGj01pnrakg26tanHV4TlHtk+gJvOF73Hbd4S2JKuaxU1avypBZHrg+Y97iLf2KK0u/Me lRA4N+CaqY+kN3zDIIp5UgXOLGJV2WA1OqFVrYYNESb4GXSh6+86dqkIh/PYuHatFvmW5dlarCr nKhX5VUOHKO8CUcvAuSkrxMsyDAtbzSZnmmQ6c4+pBsXgbxV7NcJKaY4/GAf2Fb6BjOYp2hJnti txo6Vb8B2c4EVnWAtZgLlxHEnbd638rxG0iYH3U2h+PqZ9oHig5F54hLc4Z+HzU5g= X-Google-Smtp-Source: AGHT+IEGzoj+G1XJyD7HRZUpDf/Nmo3R0LQETO+OA2bCF/axjJi8k5L8RSAIauSreqKt4GiwYJQXaA== X-Received: by 2002:a05:600c:1d14:b0:477:9d88:2da6 with SMTP id 5b1f17b1804b1-477c026ed62mr28503395e9.0.1763736859683; Fri, 21 Nov 2025 06:54:19 -0800 (PST) Received: from ?IPV6:2a01:e0a:3d9:2080:159f:1839:bb92:1eca? ([2a01:e0a:3d9:2080:159f:1839:bb92:1eca]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-42cb7f3635bsm11604067f8f.17.2025.11.21.06.54.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 21 Nov 2025 06:54:19 -0800 (PST) Message-ID: Date: Fri, 21 Nov 2025 15:54:18 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Subject: Re: [PATCH v10 04/11] drm/bridge: aux: Add drm_aux_bridge_register_from_node() To: Chaoyi Chen , Heikki Krogerus , Greg Kroah-Hartman , Dmitry Baryshkov , Peter Chen , Luca Ceresoli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner , Sandy Huang , Andy Yan , Yubing Zhang , Frank Wang , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Amit Sunil Dhamne , Chaoyi Chen , Dragan Simic , Johan Jonker , Diederik de Haas , Peter Robinson Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org References: <20251120022343.250-1-kernel@airkyi.com> <20251120022343.250-5-kernel@airkyi.com> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20251120022343.250-5-kernel@airkyi.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251121_065421_910122_69405B44 X-CRM114-Status: GOOD ( 23.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Neil Armstrong Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 11/20/25 03:23, Chaoyi Chen wrote: > From: Chaoyi Chen > > The drm_aux_bridge_register() uses the device->of_node as the > bridge->of_node. > > This patch adds drm_aux_bridge_register_from_node() to allow > specifying the of_node corresponding to the bridge. > > Signed-off-by: Chaoyi Chen > --- > drivers/gpu/drm/bridge/aux-bridge.c | 24 ++++++++++++++++++++++-- > include/drm/bridge/aux-bridge.h | 6 ++++++ > 2 files changed, 28 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/aux-bridge.c b/drivers/gpu/drm/bridge/aux-bridge.c > index b3e4cdff61d6..52dff4601c2d 100644 > --- a/drivers/gpu/drm/bridge/aux-bridge.c > +++ b/drivers/gpu/drm/bridge/aux-bridge.c > @@ -35,6 +35,7 @@ static void drm_aux_bridge_unregister_adev(void *_adev) > /** > * drm_aux_bridge_register - Create a simple bridge device to link the chain > * @parent: device instance providing this bridge > + * @np: device node pointer corresponding to this bridge instance > * > * Creates a simple DRM bridge that doesn't implement any drm_bridge > * operations. Such bridges merely fill a place in the bridge chain linking > @@ -42,7 +43,7 @@ static void drm_aux_bridge_unregister_adev(void *_adev) > * > * Return: zero on success, negative error code on failure > */ > -int drm_aux_bridge_register(struct device *parent) > +int drm_aux_bridge_register_from_node(struct device *parent, struct device_node *np) > { > struct auxiliary_device *adev; > int ret; > @@ -62,7 +63,10 @@ int drm_aux_bridge_register(struct device *parent) > adev->dev.parent = parent; > adev->dev.release = drm_aux_bridge_release; > > - device_set_of_node_from_dev(&adev->dev, parent); > + if (np) > + device_set_node(&adev->dev, of_fwnode_handle(np)); > + else > + device_set_of_node_from_dev(&adev->dev, parent); > > ret = auxiliary_device_init(adev); > if (ret) { > @@ -80,6 +84,22 @@ int drm_aux_bridge_register(struct device *parent) > > return devm_add_action_or_reset(parent, drm_aux_bridge_unregister_adev, adev); > } > +EXPORT_SYMBOL_GPL(drm_aux_bridge_register_from_node); > + > +/** > + * drm_aux_bridge_register - Create a simple bridge device to link the chain > + * @parent: device instance providing this bridge > + * > + * Creates a simple DRM bridge that doesn't implement any drm_bridge > + * operations. Such bridges merely fill a place in the bridge chain linking > + * surrounding DRM bridges. > + * > + * Return: zero on success, negative error code on failure > + */ > +int drm_aux_bridge_register(struct device *parent) > +{ > + return drm_aux_bridge_register_from_node(parent, NULL); > +} > EXPORT_SYMBOL_GPL(drm_aux_bridge_register); > > struct drm_aux_bridge_data { > diff --git a/include/drm/bridge/aux-bridge.h b/include/drm/bridge/aux-bridge.h > index c2f5a855512f..7dd1f17a1354 100644 > --- a/include/drm/bridge/aux-bridge.h > +++ b/include/drm/bridge/aux-bridge.h > @@ -13,11 +13,17 @@ struct auxiliary_device; > > #if IS_ENABLED(CONFIG_DRM_AUX_BRIDGE) > int drm_aux_bridge_register(struct device *parent); > +int drm_aux_bridge_register_from_node(struct device *parent, struct device_node *np); > #else > static inline int drm_aux_bridge_register(struct device *parent) > { > return 0; > } > + > +static inline int drm_aux_bridge_register_from_node(struct device *parent, struct device_node *np) > +{ > + return 0; > +} > #endif > > #if IS_ENABLED(CONFIG_DRM_AUX_HPD_BRIDGE) Looks fine: Reviewed-by: Neil Armstrong