diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2017-08-08 23:51:28 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-08-09 19:53:00 +0300 |
| commit | ac8d06df9a1f40a9feb759dd7ef5664328ae7694 (patch) | |
| tree | 0e36c55beb7ef965fc3b0b79daaed10847339d98 /drivers/spi/spi-ep93xx.c | |
| parent | 16779622be1c8959d6a665e2b6886bb33885fcb1 (diff) | |
| download | linux-ac8d06df9a1f40a9feb759dd7ef5664328ae7694.tar.xz | |
spi: spi-ep93xx: absorb the interrupt enable/disable helpers
These are each only called once. Just absorb them into the callers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
[chris: use u32 instead of unsigned int]
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-ep93xx.c')
| -rw-r--r-- | drivers/spi/spi-ep93xx.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c index ce6ec164f2f2..041842e0d028 100644 --- a/drivers/spi/spi-ep93xx.c +++ b/drivers/spi/spi-ep93xx.c @@ -111,24 +111,6 @@ struct ep93xx_spi { /* converts bits per word to CR0.DSS value */ #define bits_per_word_to_dss(bpw) ((bpw) - 1) -static void ep93xx_spi_enable_interrupts(const struct ep93xx_spi *espi) -{ - u32 val; - - val = readl(espi->mmio + SSPCR1); - val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE); - writel(val, espi->mmio + SSPCR1); -} - -static void ep93xx_spi_disable_interrupts(const struct ep93xx_spi *espi) -{ - u32 val; - - val = readl(espi->mmio + SSPCR1); - val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE); - writel(val, espi->mmio + SSPCR1); -} - /** * ep93xx_spi_calc_divisors() - calculates SPI clock divisors * @espi: ep93xx SPI controller struct @@ -282,7 +264,12 @@ static void ep93xx_spi_pio_transfer(struct ep93xx_spi *espi) * FIFO, enable interrupts, and wait for the transfer to complete. */ if (ep93xx_spi_read_write(espi)) { - ep93xx_spi_enable_interrupts(espi); + u32 val; + + val = readl(espi->mmio + SSPCR1); + val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE); + writel(val, espi->mmio + SSPCR1); + wait_for_completion(&espi->wait); } } @@ -604,6 +591,7 @@ static int ep93xx_spi_transfer_one_message(struct spi_master *master, static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id) { struct ep93xx_spi *espi = dev_id; + u32 val; /* * If we got ROR (receive overrun) interrupt we know that something is @@ -635,8 +623,12 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id) * any case we disable interrupts and notify the worker to handle * any post-processing of the message. */ - ep93xx_spi_disable_interrupts(espi); + val = readl(espi->mmio + SSPCR1); + val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE); + writel(val, espi->mmio + SSPCR1); + complete(&espi->wait); + return IRQ_HANDLED; } |