Unverified Commit d628783c authored by Takahiro Kuwano's avatar Takahiro Kuwano Committed by Tudor Ambarus
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mtd: spi-nor: spansion: Make RD_ANY_REG_OP macro take number of dummy bytes 



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: default avatarTudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: default avatarTakahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/03756e9e3ac41d2016a71d2afb702398dd0b19ed.1677557525.git.Takahiro.Kuwano@infineon.com


Signed-off-by: default avatarTudor Ambarus <tudor.ambarus@linaro.org>
parent eeac8ede

drivers/mtd/spi-nor/spansion.c

+5 −5
Original line number Diff line number Diff line
@@ -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;