From nobody Thu Nov 28 14:00:34 2024 Received: from mail-wr1-f46.google.com (mail-wr1-f46.google.com [209.85.221.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C21C51CF5DD; Tue, 1 Oct 2024 22:20:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.46 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727821245; cv=none; b=OutVdappPiFsAXVo7iKmk6+6lmsOfzAgQWBZtGWh0AehNenF7EbLz5sb6j+9jlvxCMNQKcahi8oKYxeUxNh+riHBMNuepYHFTVuZv95ZpidhyJVgW4YzGfNATdDmUpqvo7FI3tHG6VFfidO+i5hAwtL8xjTwnzeIlNe5BkThopk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727821245; c=relaxed/simple; bh=uFj2dvFYNBFuFJirSb+yihT/EV1akv6TTLSHucJpP6E=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gg1FnhugrBfr0LGgVw9qvxYmr+cVJNR4GJq/BPjH04/7qbJf4vM1nLUlVEPfWpCJx4C5ee+62bzwn8R1/1g0Y37UcVEJBljrIz0Mqt9OV7HK6P5A47ldE0v/zFZi1OEUQuoTCXpxssI0e93s7Tv7Wr4YqmH63d2pUBmNyMp9RDA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Nm1WOQ9S; arc=none smtp.client-ip=209.85.221.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Nm1WOQ9S" Received: by mail-wr1-f46.google.com with SMTP id ffacd0b85a97d-37cc810ce73so3503705f8f.1; Tue, 01 Oct 2024 15:20:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1727821242; x=1728426042; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=UvkeCfAFF2+TrOZNYfnjZ9TAqZKaKEt38PpwPlqvY1M=; b=Nm1WOQ9SgslqM8QNzwdi1DjVJkoHlE0e9LmeKdRHfjts3+fs1Z8I5eeUQkdHdDzaXy 6VRUqzMUsORpb9BMyk2+TZRdmry+EA26oakcK64t0CsLq+85Kjj1NpgS192PbhMrclXH rqd443zFwG8SJI2iCP0LZRK0/+r9z2vFdWXeAQWd0+SvNXjfM3tvUq8tNELMVL4IPt7X ZKTXqx3rGhEmb9PdExJCeuKE12KvQRubKtPWReRTQJnwtq8SmLAl/MBTa+5wLWgtOT/z tuRk2FfRHFsDx8dv4ZTUDDskIkIkfFD9pI8ImN9RPVNNXQZBXBPwg06uI8M2tEulIYXV DgAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727821242; x=1728426042; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UvkeCfAFF2+TrOZNYfnjZ9TAqZKaKEt38PpwPlqvY1M=; b=ulIxoi4rfTiLK/l0DQO7f0UGLVqmS/AmxD/UQj1Ao2tBisWfr5iZJxog2xfUrbZaSv GjNhcCaouym+qkQsli7/tesc4HrYL7MLMtQQ3lTnjyBE3Z7n1fmiAOF2OYTBO4cYd1vE fronrp2yF4H+IYT1OOFsBdRSF4DhhnzKx/3TUVSPY2MmfEiMAvcF/mmVKCaLsiV5Rtu9 tB13yX+ux8X2EisyPRTjZUimnyYYqbsWRtNXe5wssJWyS3JxG6lXIi38M5VXADvf654S b9ykxC8My5JGsrctQu+aUHSFfBuyjf8ybtAvkFj33GGoWlXG4L9m0klitPbgyGzKZoZ9 nHGg== X-Forwarded-Encrypted: i=1; AJvYcCV9UvND8BtfQJnbkChv9Xfk1cVzwBscRHHhO23ku08oXgGHI0tLQnE5AW9bydwPwh/pBYBt1a6YhQiH@vger.kernel.org, AJvYcCVsZmUnT3nwNpfyFGwW7gva99UzaRDln35rtLuW0PnUJb2CiSQvj5Cua43d1z4xLzgs/8dTynr58OY+@vger.kernel.org, AJvYcCWhODZzERSnSQxjL3BG4fKzLpm8UhrOu+IvOe166WWwQHGp3OMPGQeavMQ7Odu6IedjfM7wtlPhuBiAGz0=@vger.kernel.org, AJvYcCX+LDbE2D0esO68aKNlSLo2P6+iYb/3N67RpzURIPRCs0qULxFZ90V1+tS9Fh06qox/+XWrs5Q6P1s+QLWW@vger.kernel.org, AJvYcCXeaXKvz+edRlz0/EUAFh0y4+6LKSTSQuKTGaVd6F8/3DDyTbIxnLKBxSyc6JdUOjbYU5AKUU2UJviT@vger.kernel.org X-Gm-Message-State: AOJu0YyPV/9+RM3bZ9OL6saLMXFSqbpU0NbJPz1D80bXU5+Xfx6qyOlu F/IKOhFsdd5n71e/GEJAyPelOCs74Amh/NiJ5hDI2osa0YuyD16S X-Google-Smtp-Source: AGHT+IGdzj7eGjtzUH2e4oHAiqm3ikbyp7r4ZRQP5cTIPq03W/eHfzzj9TqfTqlU00uAZm44bq5y4A== X-Received: by 2002:adf:f98f:0:b0:371:8688:1660 with SMTP id ffacd0b85a97d-37cfba08fd6mr566868f8f.51.1727821241723; Tue, 01 Oct 2024 15:20:41 -0700 (PDT) Received: from localhost.localdomain (93-34-90-105.ip49.fastwebnet.it. [93.34.90.105]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-37cd57427fbsm12677089f8f.100.2024.10.01.15.20.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Oct 2024 15:20:41 -0700 (PDT) From: Christian Marangi To: Jens Axboe , Jonathan Corbet , Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Christian Marangi , INAGAKI Hiroshi , Daniel Golle , Christian Brauner , Al Viro , Ming Lei , Jan Kara , Li Lingfeng , Christian Heusel , Avri Altman , Adrian Hunter , Linus Walleij , Mikko Rapeli , Riyan Dhiman , Jorge Ramirez-Ortiz , Dominique Martinet , Jens Wiklander , Christophe JAILLET , Li Zhijian , linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, Lorenzo Bianconi , Miquel Raynal , upstream@airoha.com Subject: [PATCH v5 3/6] block: introduce device_add_of_disk() Date: Wed, 2 Oct 2024 00:18:55 +0200 Message-ID: <20241001221931.9309-4-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241001221931.9309-1-ansuelsmth@gmail.com> References: <20241001221931.9309-1-ansuelsmth@gmail.com> 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 Content-Type: text/plain; charset="utf-8" Introduce device_add_of_disk() as a variant of device_add_disk() that permits to pass and attach a fwnode to disk dev. This variant can be useful for eMMC that might have the partition table for the disk defined in DT. A parser can later make use of the attached fwnode to parse the related table and init the hardcoded partition for the disk. Signed-off-by: Christian Marangi --- block/genhd.c | 21 +++++++++++++++++++-- include/linux/blkdev.h | 3 +++ 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 1c05dd4c6980..0fc595895f1d 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -391,8 +391,9 @@ int disk_scan_partitions(struct gendisk *disk, blk_mode= _t mode) * This function registers the partitioning information in @disk * with the kernel. */ -int __must_check device_add_disk(struct device *parent, struct gendisk *di= sk, - const struct attribute_group **groups) +static int __device_add_disk(struct device *parent, struct gendisk *disk, + const struct attribute_group **groups, + struct fwnode_handle *fwnode) =20 { struct device *ddev =3D disk_to_dev(disk); @@ -452,6 +453,8 @@ int __must_check device_add_disk(struct device *parent,= struct gendisk *disk, ddev->parent =3D parent; ddev->groups =3D groups; dev_set_name(ddev, "%s", disk->disk_name); + if (fwnode) + device_set_node(ddev, fwnode); if (!(disk->flags & GENHD_FL_HIDDEN)) ddev->devt =3D MKDEV(disk->major, disk->first_minor); ret =3D device_add(ddev); @@ -553,8 +556,22 @@ int __must_check device_add_disk(struct device *parent= , struct gendisk *disk, elevator_exit(disk->queue); return ret; } + +int __must_check device_add_disk(struct device *parent, struct gendisk *di= sk, + const struct attribute_group **groups) +{ + return __device_add_disk(parent, disk, groups, NULL); +} EXPORT_SYMBOL(device_add_disk); =20 +int __must_check device_add_of_disk(struct device *parent, struct gendisk = *disk, + const struct attribute_group **groups, + struct fwnode_handle *fwnode) +{ + return __device_add_disk(parent, disk, groups, fwnode); +} +EXPORT_SYMBOL(device_add_of_disk); + static void blk_report_disk_dead(struct gendisk *disk, bool surprise) { struct block_device *bdev; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index bf1aa951fda2..7d41f35f1065 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -725,6 +725,9 @@ static inline unsigned int blk_queue_depth(struct reque= st_queue *q) #define for_each_bio(_bio) \ for (; _bio; _bio =3D _bio->bi_next) =20 +int __must_check device_add_of_disk(struct device *parent, struct gendisk = *disk, + const struct attribute_group **groups, + struct fwnode_handle *fwnode); int __must_check device_add_disk(struct device *parent, struct gendisk *di= sk, const struct attribute_group **groups); static inline int __must_check add_disk(struct gendisk *disk) --=20 2.45.2