linux-kernel - [PATCH v2 8/9] mmc: block: set fwnode of disk devices

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Date: Thu, 30 May 2024 03:15:36 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>, Jens Axboe <axboe@...nel.dk>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Daniel Golle <daniel@...rotopia.org>,
	Dave Chinner <dchinner@...hat.com>, Jan Kara <jack@...e.cz>,
	Christian Brauner <brauner@...nel.org>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	Al Viro <viro@...iv.linux.org.uk>,
	Li Lingfeng <lilingfeng3@...wei.com>,
	Christian Heusel <christian@...sel.eu>,
	Min Li <min15.li@...sung.com>, Avri Altman <avri.altman@....com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Hannes Reinecke <hare@...e.de>,
	Mikko Rapeli <mikko.rapeli@...aro.org>, Yeqi Fu <asuk4.q@...il.com>,
	Victor Shih <victor.shih@...esyslogic.com.tw>,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	Li Zhijian <lizhijian@...itsu.com>,
	"Ricardo B. Marliere" <ricardo@...liere.net>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org, linux-block@...r.kernel.org
Subject: [PATCH v2 8/9] mmc: block: set fwnode of disk devices

Set fwnode of disk devices to 'block', 'boot0' and 'boot1' subnodes of
the mmc-card. This is done in preparation for having the eMMC act as
NVMEM provider.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
 drivers/mmc/core/block.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 367509b5b646..cd3ee6d69aaa 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2463,6 +2463,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 					      int area_type,
 					      unsigned int part_type)
 {
+	struct fwnode_handle *fwnode;
 	struct mmc_blk_data *md;
 	int devidx, ret;
 	char cap_str[10];
@@ -2559,6 +2560,12 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 
 	blk_queue_write_cache(md->queue.queue, cache_enabled, fua_enabled);
 
+	fwnode = device_get_named_child_node(subname ? md->parent->parent :
+						       md->parent,
+					     subname ? subname : "block");
+	if (fwnode)
+		device_set_node(disk_to_dev(md->disk), fwnode);
+
 	string_get_size((u64)size, 512, STRING_UNITS_2,
 			cap_str, sizeof(cap_str));
 	pr_info("%s: %s %s %s%s\n",
-- 
2.45.1