| Message ID | 20230119185342.2093323-5-amit.kumar-mahapatra@amd.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | spi: Add support for stacked/parallel memories | expand |
On Fri, 20 Jan 2023 00:23:33 +0530 Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> 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> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> > --- > drivers/iio/imu/adis16400.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c > index c02fc35dceb4..3eda32e12a53 100644 > --- a/drivers/iio/imu/adis16400.c > +++ b/drivers/iio/imu/adis16400.c > @@ -466,7 +466,7 @@ static int adis16400_initial_setup(struct iio_dev *indio_dev) > > dev_info(&indio_dev->dev, "%s: prod_id 0x%04x at CS%d (irq %d)\n", > indio_dev->name, prod_id, > - st->adis.spi->chip_select, st->adis.spi->irq); > + spi_get_chipselect(st->adis.spi, 0), st->adis.spi->irq); > } > /* use high spi speed if possible */ > if (st->variant->flags & ADIS16400_HAS_SLOW_MODE) {
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/iio/imu/adis16400.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c > index c02fc35dceb4..3eda32e12a53 100644 > --- a/drivers/iio/imu/adis16400.c > +++ b/drivers/iio/imu/adis16400.c > @@ -466,7 +466,7 @@ static int adis16400_initial_setup(struct iio_dev *indio_dev) > > dev_info(&indio_dev->dev, "%s: prod_id 0x%04x at CS%d (irq %d)\n", > indio_dev->name, prod_id, > - st->adis.spi->chip_select, st->adis.spi->irq); > + spi_get_chipselect(st->adis.spi, 0), st->adis.spi->irq); > } > /* use high spi speed if possible */ > if (st->variant->flags & ADIS16400_HAS_SLOW_MODE) { Reviewed-by: Michal Simek <michal.simek@amd.com> Thanks, Michal
diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c index c02fc35dceb4..3eda32e12a53 100644 --- a/drivers/iio/imu/adis16400.c +++ b/drivers/iio/imu/adis16400.c @@ -466,7 +466,7 @@ static int adis16400_initial_setup(struct iio_dev *indio_dev) dev_info(&indio_dev->dev, "%s: prod_id 0x%04x at CS%d (irq %d)\n", indio_dev->name, prod_id, - st->adis.spi->chip_select, st->adis.spi->irq); + spi_get_chipselect(st->adis.spi, 0), st->adis.spi->irq); } /* use high spi speed if possible */ if (st->variant->flags & ADIS16400_HAS_SLOW_MODE) {
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/iio/imu/adis16400.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)