[PATCH v3 1/2] mtd: spi-nor: spansion: Make RD_ANY_REG_OP macro take number of dummy bytes
tkuw584924 at gmail.com
tkuw584924 at gmail.com
Wed Mar 1 23:35:06 PST 2023
From: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>
Currently Read Any Register op is used to read volatile registers without
any dummy cycles, but the op requires dummy cycles depending on register
type (volatiler or non-volatile), device family, and device configuration.
Add 'ndummy' argument to RD_ANY_REG_OP macro to support other use cases.
Suggested-by: Tudor Ambarus <tudor.ambarus at linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>
---
drivers/mtd/spi-nor/spansion.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index 12a256c0ef4c..9faab29aba57 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -37,10 +37,10 @@
SPI_MEM_OP_NO_DUMMY, \
SPI_MEM_OP_DATA_OUT(ndata, buf, 0))
-#define CYPRESS_NOR_RD_ANY_REG_OP(naddr, addr, buf) \
+#define CYPRESS_NOR_RD_ANY_REG_OP(naddr, addr, ndummy, buf) \
SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RD_ANY_REG, 0), \
SPI_MEM_OP_ADDR(naddr, addr, 0), \
- SPI_MEM_OP_NO_DUMMY, \
+ SPI_MEM_OP_DUMMY(ndummy, 0), \
SPI_MEM_OP_DATA_IN(1, buf, 0))
#define SPANSION_CLSR_OP \
@@ -148,7 +148,7 @@ static int cypress_nor_quad_enable_volatile(struct spi_nor *nor)
op = (struct spi_mem_op)
CYPRESS_NOR_RD_ANY_REG_OP(addr_mode_nbytes,
- SPINOR_REG_CYPRESS_CFR1V,
+ SPINOR_REG_CYPRESS_CFR1V, 0,
nor->bouncebuf);
ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
@@ -173,7 +173,7 @@ static int cypress_nor_quad_enable_volatile(struct spi_nor *nor)
/* Read back and check it. */
op = (struct spi_mem_op)
CYPRESS_NOR_RD_ANY_REG_OP(addr_mode_nbytes,
- SPINOR_REG_CYPRESS_CFR1V,
+ SPINOR_REG_CYPRESS_CFR1V, 0,
nor->bouncebuf);
ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
if (ret)
@@ -202,7 +202,7 @@ static int cypress_nor_set_page_size(struct spi_nor *nor)
{
struct spi_mem_op op =
CYPRESS_NOR_RD_ANY_REG_OP(nor->params->addr_mode_nbytes,
- SPINOR_REG_CYPRESS_CFR3V,
+ SPINOR_REG_CYPRESS_CFR3V, 0,
nor->bouncebuf);
int ret;
--
2.25.1
More information about the linux-mtd
mailing list