[v4,07/15] powerpc/83xx/mpc832x_rdb: Replace all spi->chip_select references with function call
Message ID | 20230210193647.4159467-8-amit.kumar-mahapatra@amd.com |
---|---|
State | New |
Headers |
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spi: Add support for stacked/parallel memories
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Commit Message
Mahapatra, Amit Kumar
Feb. 10, 2023, 7:36 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>
---
arch/powerpc/platforms/83xx/mpc832x_rdb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Comments
Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> writes: > 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> > --- > arch/powerpc/platforms/83xx/mpc832x_rdb.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c > index caa96edf0e72..4ab1d48cd229 100644 > --- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c > +++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c > @@ -144,7 +144,7 @@ static int __init fsl_spi_init(struct spi_board_info *board_infos, > > static void mpc83xx_spi_cs_control(struct spi_device *spi, bool on) > { > - pr_debug("%s %d %d\n", __func__, spi->chip_select, on); > + pr_debug("%s %d %d\n", __func__, spi_get_chipselect(spi, 0), on); > par_io_data_set(3, 13, on); > } Better to just delete the pr_debug(), it's disabled by default and I doubt anyone will ever enable it again in code that old. cheers
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c index caa96edf0e72..4ab1d48cd229 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c @@ -144,7 +144,7 @@ static int __init fsl_spi_init(struct spi_board_info *board_infos, static void mpc83xx_spi_cs_control(struct spi_device *spi, bool on) { - pr_debug("%s %d %d\n", __func__, spi->chip_select, on); + pr_debug("%s %d %d\n", __func__, spi_get_chipselect(spi, 0), on); par_io_data_set(3, 13, on); }