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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>
This commit is contained in:
Marc Kleine-Budde 2020-07-06 16:34:42 +02:00 committed by Mark Brown
parent e4e8ca3f43
commit 4e7390e997
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 12 deletions
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17
drivers/spi/spi-sun6i.c
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@ -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);