spi: spi-sun6i: sun6i_spi_transfer_one(): remove not needed masking of transfer length

In sun6i_spi_transfer_one() the driver ensures that the length of the transfer
is smaller or equal to SUN6I_MAX_XFER_SIZE. This means the masking of the
length to SUN6I_MAX_XFER_SIZE can be skipped when writing the transfer length
into the registers.

This patch removes the useless masking of the transfer length to
SUN6I_MAX_XFER_SIZE.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20200706143443.9855-5-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 955be89..8824927 100644 (file)
--- a/drivers/spi/spi-sun6i.c
+++ b/drivers/spi/spi-sun6i.c
@@ -73,13 +73,10 @@
 #define SUN6I_MAX_XFER_SIZE            0xffffff
 
 #define SUN6I_BURST_CNT_REG            0x30
-#define SUN6I_BURST_CNT(cnt)                   ((cnt) & SUN6I_MAX_XFER_SIZE)
 
 #define SUN6I_XMIT_CNT_REG             0x34
-#define SUN6I_XMIT_CNT(cnt)                    ((cnt) & SUN6I_MAX_XFER_SIZE)
 
 #define SUN6I_BURST_CTL_CNT_REG                0x38
-#define SUN6I_BURST_CTL_CNT_STC(cnt)           ((cnt) & SUN6I_MAX_XFER_SIZE)
 
 #define SUN6I_TXDATA_REG               0x200
 #define SUN6I_RXDATA_REG               0x300
@@ -305,10 +302,9 @@ static int sun6i_spi_transfer_one(struct spi_master *master,
                tx_len = tfr->len;
 
        /* Setup the counters */
-       sun6i_spi_write(sspi, SUN6I_BURST_CNT_REG, SUN6I_BURST_CNT(tfr->len));
-       sun6i_spi_write(sspi, SUN6I_XMIT_CNT_REG, SUN6I_XMIT_CNT(tx_len));
-       sun6i_spi_write(sspi, SUN6I_BURST_CTL_CNT_REG,
-                       SUN6I_BURST_CTL_CNT_STC(tx_len));
+       sun6i_spi_write(sspi, SUN6I_BURST_CNT_REG, tfr->len);
+       sun6i_spi_write(sspi, SUN6I_XMIT_CNT_REG, tx_len);
+       sun6i_spi_write(sspi, SUN6I_BURST_CTL_CNT_REG, tx_len);
 
        /* Fill the TX FIFO */
        sun6i_spi_fill_fifo(sspi, sspi->fifo_depth);