diff options
| author | Gregory CLEMENT <gregory.clement@bootlin.com> | 2019-10-17 16:18:43 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-10-18 19:33:19 +0200 |
| commit | 60086e23e64f7b3b60d957471cfd10948e25648e (patch) | |
| tree | fe890d0fe72323da2d7e3c4216c4ba7819139fce | |
| parent | spi: atmel: Configure GPIO per CS instead of by controller (diff) | |
| download | linux-60086e23e64f7b3b60d957471cfd10948e25648e.tar.xz linux-60086e23e64f7b3b60d957471cfd10948e25648e.zip | |
spi: atmel: Remove useless private field
Since the conversion to GPIO descriptor, the GPIO used as chip select,
can be directly access from the spi_device struct. So there is no need
to keep the field npcs_pin.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20191017141846.7523-5-gregory.clement@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi-atmel.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index b511df6a4846..19600de40422 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -284,7 +284,6 @@ struct atmel_spi { /* Controller-specific per-slave state */ struct atmel_spi_device { - struct gpio_desc *npcs_pin; u32 csr; }; @@ -347,8 +346,8 @@ static void cs_activate(struct atmel_spi *as, struct spi_device *spi) } mr = spi_readl(as, MR); - if (asd->npcs_pin) - gpiod_set_value(asd->npcs_pin, 1); + if (spi->cs_gpiod) + gpiod_set_value(spi->cs_gpiod, 1); } else { u32 cpol = (spi->mode & SPI_CPOL) ? SPI_BIT(CPOL) : 0; int i; @@ -364,8 +363,8 @@ static void cs_activate(struct atmel_spi *as, struct spi_device *spi) mr = spi_readl(as, MR); mr = SPI_BFINS(PCS, ~(1 << spi->chip_select), mr); - if (asd->npcs_pin && spi->chip_select != 0) - gpiod_set_value(asd->npcs_pin, 1); + if (spi->cs_gpiod && spi->chip_select != 0) + gpiod_set_value(spi->cs_gpiod, 1); spi_writel(as, MR, mr); } @@ -374,7 +373,6 @@ static void cs_activate(struct atmel_spi *as, struct spi_device *spi) static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi) { - struct atmel_spi_device *asd = spi->controller_state; u32 mr; /* only deactivate *this* device; sometimes transfers to @@ -388,10 +386,10 @@ static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi) dev_dbg(&spi->dev, "DEactivate NPCS, mr %08x\n", mr); - if (!asd->npcs_pin) + if (!spi->cs_gpiod) spi_writel(as, CR, SPI_BIT(LASTXFER)); else if (atmel_spi_is_v2(as) || spi->chip_select != 0) - gpiod_set_value(asd->npcs_pin, 0); + gpiod_set_value(spi->cs_gpiod, 0); } static void atmel_spi_lock(struct atmel_spi *as) __acquires(&as->lock) @@ -1205,9 +1203,6 @@ static int atmel_spi_setup(struct spi_device *spi) if (!asd) return -ENOMEM; - if (spi->cs_gpiod) - asd->npcs_pin = spi->cs_gpiod; - spi->controller_state = asd; } |