[PATCH v5 02/10] mtd: spi-nor: core: Update name and description of micron_st_nor_set_4byte_addr_mode

From: Tudor Ambarus
Date: Fri Mar 31 2023 - 03:46:35 EST


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@xxxxxxxxxx>
---
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 d104c81f22c5..07be81afdc33 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 d5cb42245820..d8e3fd60d6ee 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -648,7 +648,8 @@ 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_prep_and_lock(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)
--
2.40.0.348.gf938b09366-goog