mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

[patrice.chotard]

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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Re: mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

[Pratyush Yadav]

On 29/06/22 03:30PM, patrice.chotard@foss.st.com wrote:
> 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>

Reviewed-by: Pratyush Yadav <p.yadav@ti.com>

-- 
Regards,
Pratyush Yadav
Texas Instruments Inc.

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Re: mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

[Tudor.Ambarus]

On 6/29/22 16:30, patrice.chotard@foss.st.com wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> 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
> 

should you also update the following?

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index ce5d69317d46..23487e9a9282 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -177,7 +177,7 @@ int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
 
 static int spi_nor_controller_ops_erase(struct spi_nor *nor, loff_t offs)
 {
-       if (spi_nor_protocol_is_dtr(nor->write_proto))
+       if (spi_nor_protocol_is_dtr(nor->reg_proto))
                return -EOPNOTSUPP;
 
        return nor->controller_ops->erase(nor, offs);
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Re: mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

[Alexander Sverdlin]

Hello Patrice,

thanks for the patch!
It fixes mt25qu256a erase in my tests.

On 29/06/2022 15:30, patrice.chotard@foss.st.com wrote:
> 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>

Tested-by: Alexander Sverdlin <alexander.sverdlin@nokia.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) {

-- 
Best regards,
Alexander Sverdlin.

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Re: mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

[Tudor Ambarus]

On Wed, 29 Jun 2022 15:30:13 +0200, patrice.chotard@foss.st.com wrote:
> 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.
> 
> [...]

Used nor->reg_proto in spi_nor_controller_ops_erase() and applied to
spi-nor/next, thanks!

[1/1] mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
      https://git.kernel.org/mtd/c/7f5ee1a113a9

Best regards,
-- 
Tudor Ambarus <tudor.ambarus@microchip.com>

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Re: mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()

[Tudor.Ambarus]

On 7/28/22 05:38, Tudor Ambarus wrote:
> On Wed, 29 Jun 2022 15:30:13 +0200, patrice.chotard@foss.st.com wrote:
>> 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.
>>
>> [...]
> 
> Used nor->reg_proto in spi_nor_controller_ops_erase() and applied to
> spi-nor/next, thanks!
> 
> [1/1] mtd: spi-nor: fix spi_nor_spimem_setup_op() call in spi_nor_erase_{sector,chip}()
>       https://git.kernel.org/mtd/c/7f5ee1a113a9
here's the correct link to the patch:
https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git/commit/?h=spi-nor/next&id=f8cd9f632f4415b1e8838bdca8ab42cfb37a6584

> 
> Best regards,


-- 
Cheers,
ta
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