linux-kernel - [PATCH v4 02/11] mtd: spi-nor: core: Update name and description of micron_st_nor_set_4byte_addr

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Message-Id: <20230322064033.2370483-3-tudor.ambarus@linaro.org>
Date:   Wed, 22 Mar 2023 06:40:24 +0000
From:   Tudor Ambarus <tudor.ambarus@...aro.org>
To:     michael@...le.cc, pratyush@...nel.org
Cc:     miquel.raynal@...tlin.com, richard@....at,
        Takahiro.Kuwano@...ineon.com, bacem.daassi@...ineon.com,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH v4 02/11] mtd: spi-nor: core: Update name and description of micron_st_nor_set_4byte_addr_mode

Rename method to spi_nor_set_4byte_addr_mode_wren_en4b_ex4b and extend
its description. This method is described in JESD216 BFPT[SFDP_DWORD(16)],
BIT(30) and BIT(22).

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
 drivers/mtd/spi-nor/core.c      | 7 ++++---
 drivers/mtd/spi-nor/core.h      | 3 ++-
 drivers/mtd/spi-nor/micron-st.c | 2 +-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 8d246b1b439a..2cb7425b3694 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -539,15 +539,16 @@ int spi_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable)
 }
 
 /**
- * micron_st_nor_set_4byte_addr_mode() - Set 4-byte address mode for ST and
- * Micron flashes.
+ * spi_nor_set_4byte_addr_mode_wren_en4b_ex4b() - Set 4-byte address mode using
+ * SPINOR_OP_WREN followed by SPINOR_OP_EN4B or SPINOR_OP_EX4B. Typically used
+ * by ST and Micron flashes.
  * @nor:	pointer to 'struct spi_nor'.
  * @enable:	true to enter the 4-byte address mode, false to exit the 4-byte
  *		address mode.
  *
  * Return: 0 on success, -errno otherwise.
  */
-int micron_st_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable)
+int spi_nor_set_4byte_addr_mode_wren_en4b_ex4b(struct spi_nor *nor, bool enable)
 {
 	int ret;
 
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index aa44474c042a..2fc08c26081f 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -635,7 +635,8 @@ void spi_nor_spimem_setup_op(const struct spi_nor *nor,
 int spi_nor_write_enable(struct spi_nor *nor);
 int spi_nor_write_disable(struct spi_nor *nor);
 int spi_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable);
-int micron_st_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable);
+int spi_nor_set_4byte_addr_mode_wren_en4b_ex4b(struct spi_nor *nor,
+					       bool enable);
 int spi_nor_wait_till_ready(struct spi_nor *nor);
 int spi_nor_global_block_unlock(struct spi_nor *nor);
 int spi_nor_lock_and_prep(struct spi_nor *nor);
diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 3bbf65234ebd..a75f0f4e1c38 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -425,7 +425,7 @@ static void micron_st_nor_default_init(struct spi_nor *nor)
 	nor->flags |= SNOR_F_HAS_LOCK;
 	nor->flags &= ~SNOR_F_HAS_16BIT_SR;
 	nor->params->quad_enable = NULL;
-	nor->params->set_4byte_addr_mode = micron_st_nor_set_4byte_addr_mode;
+	nor->params->set_4byte_addr_mode = spi_nor_set_4byte_addr_mode_wren_en4b_ex4b;
 }
 
 static void micron_st_nor_late_init(struct spi_nor *nor)
-- 
2.40.0.rc1.284.g88254d51c5-goog