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path: root/drivers/spi/mpc52xx_psc_spi.c
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Diffstat (limited to 'drivers/spi/mpc52xx_psc_spi.c')
-rw-r--r--drivers/spi/mpc52xx_psc_spi.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index 604e5f0..25eda71 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -148,7 +148,6 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
unsigned rfalarm;
unsigned send_at_once = MPC52xx_PSC_BUFSIZE;
unsigned recv_at_once;
- unsigned bpw = mps->bits_per_word / 8;
if (!t->tx_buf && !t->rx_buf && t->len)
return -EINVAL;
@@ -164,22 +163,15 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
}
dev_dbg(&spi->dev, "send %d bytes...\n", send_at_once);
- if (tx_buf) {
- for (; send_at_once; sb++, send_at_once--) {
- /* set EOF flag */
- if (mps->bits_per_word
- && (sb + 1) % bpw == 0)
- out_8(&psc->ircr2, 0x01);
+ for (; send_at_once; sb++, send_at_once--) {
+ /* set EOF flag before the last word is sent */
+ if (send_at_once == 1)
+ out_8(&psc->ircr2, 0x01);
+
+ if (tx_buf)
out_8(&psc->mpc52xx_psc_buffer_8, tx_buf[sb]);
- }
- } else {
- for (; send_at_once; sb++, send_at_once--) {
- /* set EOF flag */
- if (mps->bits_per_word
- && ((sb + 1) % bpw) == 0)
- out_8(&psc->ircr2, 0x01);
+ else
out_8(&psc->mpc52xx_psc_buffer_8, 0);
- }
}
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