diff mbox series

[v2,07/13] platform/x86: serial-multi-instantiate: Replace all spi->chip_select and spi->cs_gpiod references with function call

Message ID 20230119185342.2093323-8-amit.kumar-mahapatra@amd.com
State New
Headers
Series spi: Add support for stacked/parallel memories |

Commit Message

Mahapatra, Amit Kumar Jan. 19, 2023, 6:53 p.m. UTC 
  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/platform/x86/serial-multi-instantiate.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Michal Simek Jan. 23, 2023, 12:48 p.m. UTC | #1 
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/platform/x86/serial-multi-instantiate.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c
> index 5362f1a7b77c..270a4700d25d 100644
> --- a/drivers/platform/x86/serial-multi-instantiate.c
> +++ b/drivers/platform/x86/serial-multi-instantiate.c
> @@ -139,7 +139,8 @@ static int smi_spi_probe(struct platform_device *pdev, struct smi *smi,
>   			goto error;
>   		}
>   
> -		dev_dbg(dev, "SPI device %s using chip select %u", name, spi_dev->chip_select);
> +		dev_dbg(dev, "SPI device %s using chip select %u", name,
> +			spi_get_chipselect(spi_dev, 0));
>   
>   		smi->spi_devs[i] = spi_dev;
>   		smi->spi_num++;

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

Thanks,
Michal
diff mbox series

Patch

diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c
index 5362f1a7b77c..270a4700d25d 100644
--- a/drivers/platform/x86/serial-multi-instantiate.c
+++ b/drivers/platform/x86/serial-multi-instantiate.c
@@ -139,7 +139,8 @@  static int smi_spi_probe(struct platform_device *pdev, struct smi *smi,
 			goto error;
 		}
 
-		dev_dbg(dev, "SPI device %s using chip select %u", name, spi_dev->chip_select);
+		dev_dbg(dev, "SPI device %s using chip select %u", name,
+			spi_get_chipselect(spi_dev, 0));
 
 		smi->spi_devs[i] = spi_dev;
 		smi->spi_num++;