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* mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
@ 2022-06-29 13:30 patrice.chotard
  2022-07-05  7:36 ` Pratyush Yadav
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: patrice.chotard @ 2022-06-29 13:30 UTC (permalink / raw)
  To: Tudor Ambarus, Pratyush Yadav, Miquel Raynal, Richard Weinberger,
	Vignesh Raghavendra, linux-mtd, inux-kernel
  Cc: patrice.chotard, christophe.kerello

From: Patrice Chotard <patrice.chotard@foss.st.com>

For erase operations, reg_proto must be used as indicated in
struct spi_nor description in spi-nor.h.

This issue was found when DT property spi-tx-bus-width is set to 4.
In this case the spi_mem_op->addr.buswidth is set to 4 for erase command
which is not correct.

Tested on stm32mp157c-ev1 board with mx66l51235f spi-nor.

Fixes: 0e30f47232ab ("mtd: spi-nor: add support for DTR protocol")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
 drivers/mtd/spi-nor/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 502967c76c5f..61027330848f 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -972,7 +972,7 @@ static int spi_nor_erase_chip(struct spi_nor *nor)
 	if (nor->spimem) {
 		struct spi_mem_op op = SPI_NOR_CHIP_ERASE_OP;
 
-		spi_nor_spimem_setup_op(nor, &op, nor->write_proto);
+		spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
 
 		ret = spi_mem_exec_op(nor->spimem, &op);
 	} else {
@@ -1115,7 +1115,7 @@ int spi_nor_erase_sector(struct spi_nor *nor, u32 addr)
 			SPI_NOR_SECTOR_ERASE_OP(nor->erase_opcode,
 						nor->addr_width, addr);
 
-		spi_nor_spimem_setup_op(nor, &op, nor->write_proto);
+		spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
 
 		return spi_mem_exec_op(nor->spimem, &op);
 	} else if (nor->controller_ops->erase) {
-- 
2.25.1


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end of thread, other threads:[~2022-07-28  2:48 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-06-29 13:30 mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}() patrice.chotard
2022-07-05  7:36 ` Pratyush Yadav
2022-07-18 16:47 ` Tudor.Ambarus
2022-07-25 14:50 ` Alexander Sverdlin
2022-07-28  2:38 ` Tudor Ambarus
2022-07-28  2:47   ` Tudor.Ambarus

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