diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-07-06 16:34:42 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-07 10:41:40 +0100 |
| commit | 4e7390e997af380e20c5979a9963b521e62b4a58 (patch) | |
| tree | 1b25b5cb2769992c24af7683d2e7269966dfe9db /drivers/spi/spi-sun6i.c | |
| parent | e4e8ca3f43f97c82dbaef30e018acc4fd1ededf0 (diff) | |
spi: spi-sun6i: sun6i_spi_transfer_one(): collate write to Interrupt Control Register
In sun6i_spi_transfer_one() the Interrupt Control Register is written three
times. This patch collates the three writes into one.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20200706143443.9855-10-mkl@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-sun6i.c')
| -rw-r--r-- | drivers/spi/spi-sun6i.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c index 2442006c4229..bba9843c40c5 100644 --- a/drivers/spi/spi-sun6i.c +++ b/drivers/spi/spi-sun6i.c @@ -119,14 +119,6 @@ static inline u32 sun6i_spi_get_tx_fifo_count(struct sun6i_spi *sspi) return FIELD_GET(SUN6I_FIFO_STA_TF_CNT_MASK, reg); } -static inline void sun6i_spi_enable_interrupt(struct sun6i_spi *sspi, u32 mask) -{ - u32 reg = sun6i_spi_read(sspi, SUN6I_INT_CTL_REG); - - reg |= mask; - sun6i_spi_write(sspi, SUN6I_INT_CTL_REG, reg); -} - static inline void sun6i_spi_disable_interrupt(struct sun6i_spi *sspi, u32 mask) { u32 reg = sun6i_spi_read(sspi, SUN6I_INT_CTL_REG); @@ -310,11 +302,12 @@ static int sun6i_spi_transfer_one(struct spi_master *master, sun6i_spi_fill_fifo(sspi); /* Enable the interrupts */ - sun6i_spi_write(sspi, SUN6I_INT_CTL_REG, SUN6I_INT_CTL_TC); - sun6i_spi_enable_interrupt(sspi, SUN6I_INT_CTL_TC | - SUN6I_INT_CTL_RF_RDY); + reg = SUN6I_INT_CTL_TC | SUN6I_INT_CTL_RF_RDY; + if (tx_len > sspi->fifo_depth) - sun6i_spi_enable_interrupt(sspi, SUN6I_INT_CTL_TF_ERQ); + reg |= SUN6I_INT_CTL_TF_ERQ; + + sun6i_spi_write(sspi, SUN6I_INT_CTL_REG, reg); /* Start the transfer */ reg = sun6i_spi_read(sspi, SUN6I_TFR_CTL_REG); |