linux-kernel - [PATCH v4 19/32] mtd: spi-nor: export more function to be used in vendor modules

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Date:   Mon, 21 Feb 2022 13:07:56 +0100
From:   Michael Walle <michael@...le.cc>
To:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <p.yadav@...com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        yaliang.wang@...driver.com, Michael Walle <michael@...le.cc>
Subject: [PATCH v4 19/32] mtd: spi-nor: export more function to be used in vendor modules

We will move vendor specific code into the vendor modules and thus we
will have to export these functions so they can be called.

Signed-off-by: Michael Walle <michael@...le.cc>
Reviewed-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
Reviewed-by: Pratyush Yadav <p.yadav@...com>
---
 drivers/mtd/spi-nor/core.c | 10 +++++-----
 drivers/mtd/spi-nor/core.h |  6 ++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 390a9ab413b7..8481272533a3 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -157,8 +157,8 @@ static int spi_nor_spimem_exec_op(struct spi_nor *nor, struct spi_mem_op *op)
 	return spi_mem_exec_op(nor->spimem, op);
 }
 
-static int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
-					   u8 *buf, size_t len)
+int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
+				    u8 *buf, size_t len)
 {
 	if (spi_nor_protocol_is_dtr(nor->reg_proto))
 		return -EOPNOTSUPP;
@@ -166,8 +166,8 @@ static int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
 	return nor->controller_ops->read_reg(nor, opcode, buf, len);
 }
 
-static int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
-					    const u8 *buf, size_t len)
+int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
+				     const u8 *buf, size_t len)
 {
 	if (spi_nor_protocol_is_dtr(nor->reg_proto))
 		return -EOPNOTSUPP;
@@ -683,7 +683,7 @@ static void spi_nor_clear_sr(struct spi_nor *nor)
  *
  * Return: 1 if ready, 0 if not ready, -errno on errors.
  */
-static int spi_nor_sr_ready(struct spi_nor *nor)
+int spi_nor_sr_ready(struct spi_nor *nor)
 {
 	int ret = spi_nor_read_sr(nor, nor->bouncebuf);
 
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index fdc8c0f31f5c..446218b0e017 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -558,6 +558,7 @@ int spi_nor_sr1_bit6_quad_enable(struct spi_nor *nor);
 int spi_nor_sr2_bit1_quad_enable(struct spi_nor *nor);
 int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor);
 int spi_nor_read_sr(struct spi_nor *nor, u8 *sr);
+int spi_nor_sr_ready(struct spi_nor *nor);
 int spi_nor_read_cr(struct spi_nor *nor, u8 *cr);
 int spi_nor_write_sr(struct spi_nor *nor, const u8 *sr, size_t len);
 int spi_nor_write_sr_and_check(struct spi_nor *nor, u8 sr1);
@@ -603,6 +604,11 @@ void spi_nor_try_unlock_all(struct spi_nor *nor);
 void spi_nor_set_mtd_locking_ops(struct spi_nor *nor);
 void spi_nor_set_mtd_otp_ops(struct spi_nor *nor);
 
+int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
+				    u8 *buf, size_t len);
+int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
+				     const u8 *buf, size_t len);
+
 static inline struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)
 {
 	return container_of(mtd, struct spi_nor, mtd);
-- 
2.30.2