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>

diff --git a/drivers/spi/spi-sun6i.c b/drivers/spi/spi-sun6i.c
index 2442006..bba9843 100644 (file)
--- 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);