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path: root/drivers/spi/spi-bfin5xx.c
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Diffstat (limited to 'drivers/spi/spi-bfin5xx.c')
-rw-r--r--drivers/spi/spi-bfin5xx.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c
index 3b83ff8b1e2b..9bb4d4af8547 100644
--- a/drivers/spi/spi-bfin5xx.c
+++ b/drivers/spi/spi-bfin5xx.c
@@ -396,7 +396,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id)
/* last read */
if (drv_data->rx) {
dev_dbg(&drv_data->pdev->dev, "last read\n");
- if (n_bytes % 2) {
+ if (!(n_bytes % 2)) {
u16 *buf = (u16 *)drv_data->rx;
for (loop = 0; loop < n_bytes / 2; loop++)
*buf++ = bfin_read(&drv_data->regs->rdbr);
@@ -424,7 +424,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id)
if (drv_data->rx && drv_data->tx) {
/* duplex */
dev_dbg(&drv_data->pdev->dev, "duplex: write_TDBR\n");
- if (n_bytes % 2) {
+ if (!(n_bytes % 2)) {
u16 *buf = (u16 *)drv_data->rx;
u16 *buf2 = (u16 *)drv_data->tx;
for (loop = 0; loop < n_bytes / 2; loop++) {
@@ -442,7 +442,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id)
} else if (drv_data->rx) {
/* read */
dev_dbg(&drv_data->pdev->dev, "read: write_TDBR\n");
- if (n_bytes % 2) {
+ if (!(n_bytes % 2)) {
u16 *buf = (u16 *)drv_data->rx;
for (loop = 0; loop < n_bytes / 2; loop++) {
*buf++ = bfin_read(&drv_data->regs->rdbr);
@@ -458,7 +458,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id)
} else if (drv_data->tx) {
/* write */
dev_dbg(&drv_data->pdev->dev, "write: write_TDBR\n");
- if (n_bytes % 2) {
+ if (!(n_bytes % 2)) {
u16 *buf = (u16 *)drv_data->tx;
for (loop = 0; loop < n_bytes / 2; loop++) {
bfin_read(&drv_data->regs->rdbr);
@@ -587,6 +587,7 @@ static void bfin_spi_pump_transfers(unsigned long data)
if (message->state == DONE_STATE) {
dev_dbg(&drv_data->pdev->dev, "transfer: all done!\n");
message->status = 0;
+ bfin_spi_flush(drv_data);
bfin_spi_giveback(drv_data);
return;
}
@@ -870,8 +871,10 @@ static void bfin_spi_pump_transfers(unsigned long data)
message->actual_length += drv_data->len_in_bytes;
/* Move to next transfer of this msg */
message->state = bfin_spi_next_transfer(drv_data);
- if (drv_data->cs_change)
+ if (drv_data->cs_change && message->state != DONE_STATE) {
+ bfin_spi_flush(drv_data);
bfin_spi_cs_deactive(drv_data, chip);
+ }
}
/* Schedule next transfer tasklet */
@@ -1026,7 +1029,6 @@ static int bfin_spi_setup(struct spi_device *spi)
chip->cs_chg_udelay = chip_info->cs_chg_udelay;
chip->idle_tx_val = chip_info->idle_tx_val;
chip->pio_interrupt = chip_info->pio_interrupt;
- spi->bits_per_word = chip_info->bits_per_word;
} else {
/* force a default base state */
chip->ctl_reg &= bfin_ctl_reg;