linux-kernel - [RFC PATCH 04/10] mtd: mtdcore: Call mtd_execute_tuning during mtd

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Message-ID: <20250811193219.731851-5-s-k6@ti.com>
Date: Tue, 12 Aug 2025 01:02:13 +0530
From: Santhosh Kumar K <s-k6@...com>
To: <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <broonie@...nel.org>, <tudor.ambarus@...aro.org>,
        <pratyush@...nel.org>, <mwalle@...nel.org>, <p-mantena@...com>
CC: <linux-spi@...r.kernel.org>, <linux-mtd@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <s-k6@...com>, <a-dutta@...com>,
        <u-kumar1@...com>, <praneeth@...com>
Subject: [RFC PATCH 04/10] mtd: mtdcore: Call mtd_execute_tuning during mtd_register

Call mtd_execute_tuning() during the mtd_register() which redirects to
the flash specific tuning procedure to run at higher frequencies.

Signed-off-by: Santhosh Kumar K <s-k6@...com>
---
 drivers/mtd/mtdcore.c | 19 +++++++++++++++++++
 drivers/mtd/mtdcore.h |  1 +
 2 files changed, 20 insertions(+)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 5ba9a741f5ac..f50cebcdb670 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -1023,6 +1023,22 @@ static int mtd_otp_nvmem_add(struct mtd_info *mtd)
 	return dev_err_probe(dev, err, "Failed to register OTP NVMEM device\n");
 }
 
+int mtd_execute_tuning(struct mtd_info *mtd)
+{
+	struct mtd_part *part;
+
+	list_for_each_entry(part, &mtd->partitions, node) {
+		struct mtd_info *part_info =
+			container_of(part, struct mtd_info, part);
+		if (part_info->name &&
+		    !strcmp(part_info->name, "ospi.phypattern")) {
+			return mtd->_execute_tuning(mtd, part);
+		}
+	}
+
+	return -ENODEV;
+}
+
 /**
  * mtd_device_parse_register - parse partitions and register an MTD device.
  *
@@ -1087,6 +1103,9 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types,
 	if (ret)
 		goto out;
 
+	if (mtd_execute_tuning(mtd) == -ENODEV)
+		dev_info(&mtd->dev, "PHY pattern partition not found\n");
+
 	/*
 	 * FIXME: some drivers unfortunately call this function more than once.
 	 * So we have to check if we've already assigned the reboot notifier.
diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h
index b014861a06a6..04055fcd2df8 100644
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -13,6 +13,7 @@ int del_mtd_device(struct mtd_info *mtd);
 int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
 int del_mtd_partitions(struct mtd_info *);
 void release_mtd_partition(struct mtd_info *mtd);
+int mtd_execute_tuning(struct mtd_info *mtd);
 
 struct mtd_partitions;
 
-- 
2.34.1