[PATCH v2 11/14] spi: pxa2xx: Extract clear_SSCR1_bits() helper

Andy Shevchenko
2021-04-23T18:25:24Z

There are few places that repeat the logic of "clear some bits in SSCR1".
Extract clear_SSCR1_bits() helper to deduplicate that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/spi/spi-pxa2xx-dma.c | 4 +---
drivers/spi/spi-pxa2xx.c | 7 ++-----
drivers/spi/spi-pxa2xx.h | 5 +++++
3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c
index 5ca01ad7f460..e581027e99f9 100644
--- a/drivers/spi/spi-pxa2xx-dma.c
+++ b/drivers/spi/spi-pxa2xx-dma.c
@@ -41,9 +41,7 @@ static void pxa2xx_spi_dma_transfer_complete(struct driver_data *drv_data,
}

/* Clear status & disable interrupts */
- pxa2xx_spi_write(drv_data, SSCR1,
- pxa2xx_spi_read(drv_data, SSCR1)
- & ~drv_data->dma_cr1);
+ clear_SSCR1_bits(drv_data, drv_data->dma_cr1);
write_SSSR_CS(drv_data, drv_data->clear_sr);
if (!pxa25x_ssp_comp(drv_data))
pxa2xx_spi_write(drv_data, SSTO, 0);
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 4b3237f14ead..58178ba704dc 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -733,8 +733,7 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data)
static void handle_bad_msg(struct driver_data *drv_data)
{
pxa2xx_spi_off(drv_data);
- pxa2xx_spi_write(drv_data, SSCR1,
- pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1);
+ clear_SSCR1_bits(drv_data, drv_data->int_cr1);
if (!pxa25x_ssp_comp(drv_data))
pxa2xx_spi_write(drv_data, SSTO, 0);
write_SSSR_CS(drv_data, drv_data->clear_sr);
@@ -1161,9 +1160,7 @@ static void pxa2xx_spi_handle_err(struct spi_controller *controller,
pxa2xx_spi_off(drv_data);
/* Clear and disable interrupts and service requests */
write_SSSR_CS(drv_data, drv_data->clear_sr);
- pxa2xx_spi_write(drv_data, SSCR1,
- pxa2xx_spi_read(drv_data, SSCR1)
- & ~(drv_data->int_cr1 | drv_data->dma_cr1));
+ clear_SSCR1_bits(drv_data, drv_data->int_cr1 | drv_data->dma_cr1);
if (!pxa25x_ssp_comp(drv_data))
pxa2xx_spi_write(drv_data, SSTO, 0);

diff --git a/drivers/spi/spi-pxa2xx.h b/drivers/spi/spi-pxa2xx.h
index 739e264feaa6..ed63f7165cd8 100644
--- a/drivers/spi/spi-pxa2xx.h
+++ b/drivers/spi/spi-pxa2xx.h
@@ -105,6 +105,11 @@ static inline int pxa25x_ssp_comp(struct driver_data *drv_data)
}
}

+static inline void clear_SSCR1_bits(const struct driver_data *drv_data, u32 bits)
+{
+ pxa2xx_spi_write(drv_data, SSCR1, pxa2xx_spi_read(drv_data, SSCR1) & ~bits);
+}
+
static inline void write_SSSR_CS(struct driver_data *drv_data, u32 val)
{
if (drv_data->ssp_type == CE4100_SSP ||
--
2.30.2