[PATCH v2 05/13] mtd: devices: Replace all spi->chip_select and spi->cs_gpiod references with function call

Amit Kumar Mahapatra posted 13 patches 1 year, 8 months ago
There is a newer version of this series
[PATCH v2 05/13] mtd: devices: Replace all spi->chip_select and spi->cs_gpiod references with function call
Posted by Amit Kumar Mahapatra 1 year, 8 months ago
Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod
members of struct spi_device to be an array. But changing the type of these
members to array would break the spi driver functionality. To make the
transition smoother introduced four new APIs to get/set the
spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and
spi->cs_gpiod references with get or set API calls.
While adding multi-cs support in further patches the chip_select & cs_gpiod
members of the spi_device structure would be converted to arrays & the
"idx" parameter of the APIs would be used as array index i.e.,
spi->chip_select[idx] & spi->cs_gpiod[idx] respectively.

Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
---
 drivers/mtd/devices/mtd_dataflash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 3bbaa590c768..1d3b2a94581f 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -639,7 +639,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
 
 	/* name must be usable with cmdlinepart */
 	sprintf(priv->name, "spi%d.%d-%s",
-			spi->master->bus_num, spi->chip_select,
+			spi->master->bus_num, spi_get_chipselect(spi, 0),
 			name);
 
 	device = &priv->mtd;
-- 
2.17.1
Re: [PATCH v2 05/13] mtd: devices: Replace all spi->chip_select and spi->cs_gpiod references with function call
Posted by Michal Simek 1 year, 8 months ago

On 1/19/23 19:53, Amit Kumar Mahapatra wrote:
> Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod
> members of struct spi_device to be an array. But changing the type of these
> members to array would break the spi driver functionality. To make the
> transition smoother introduced four new APIs to get/set the
> spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and
> spi->cs_gpiod references with get or set API calls.
> While adding multi-cs support in further patches the chip_select & cs_gpiod
> members of the spi_device structure would be converted to arrays & the
> "idx" parameter of the APIs would be used as array index i.e.,
> spi->chip_select[idx] & spi->cs_gpiod[idx] respectively.
> 
> Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
> ---
>   drivers/mtd/devices/mtd_dataflash.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
> index 3bbaa590c768..1d3b2a94581f 100644
> --- a/drivers/mtd/devices/mtd_dataflash.c
> +++ b/drivers/mtd/devices/mtd_dataflash.c
> @@ -639,7 +639,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages,
>   
>   	/* name must be usable with cmdlinepart */
>   	sprintf(priv->name, "spi%d.%d-%s",
> -			spi->master->bus_num, spi->chip_select,
> +			spi->master->bus_num, spi_get_chipselect(spi, 0),
>   			name);
>   
>   	device = &priv->mtd;


Reviewed-by: Michal Simek <michal.simek@amd.com>

Thanks,
Michal