diff options
Diffstat (limited to 'drivers/spi/spi-bfin5xx.c')
-rw-r--r-- | drivers/spi/spi-bfin5xx.c | 14 |
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) | |||
396 | /* last read */ | 396 | /* last read */ |
397 | if (drv_data->rx) { | 397 | if (drv_data->rx) { |
398 | dev_dbg(&drv_data->pdev->dev, "last read\n"); | 398 | dev_dbg(&drv_data->pdev->dev, "last read\n"); |
399 | if (n_bytes % 2) { | 399 | if (!(n_bytes % 2)) { |
400 | u16 *buf = (u16 *)drv_data->rx; | 400 | u16 *buf = (u16 *)drv_data->rx; |
401 | for (loop = 0; loop < n_bytes / 2; loop++) | 401 | for (loop = 0; loop < n_bytes / 2; loop++) |
402 | *buf++ = bfin_read(&drv_data->regs->rdbr); | 402 | *buf++ = bfin_read(&drv_data->regs->rdbr); |
@@ -424,7 +424,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id) | |||
424 | if (drv_data->rx && drv_data->tx) { | 424 | if (drv_data->rx && drv_data->tx) { |
425 | /* duplex */ | 425 | /* duplex */ |
426 | dev_dbg(&drv_data->pdev->dev, "duplex: write_TDBR\n"); | 426 | dev_dbg(&drv_data->pdev->dev, "duplex: write_TDBR\n"); |
427 | if (n_bytes % 2) { | 427 | if (!(n_bytes % 2)) { |
428 | u16 *buf = (u16 *)drv_data->rx; | 428 | u16 *buf = (u16 *)drv_data->rx; |
429 | u16 *buf2 = (u16 *)drv_data->tx; | 429 | u16 *buf2 = (u16 *)drv_data->tx; |
430 | for (loop = 0; loop < n_bytes / 2; loop++) { | 430 | 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) | |||
442 | } else if (drv_data->rx) { | 442 | } else if (drv_data->rx) { |
443 | /* read */ | 443 | /* read */ |
444 | dev_dbg(&drv_data->pdev->dev, "read: write_TDBR\n"); | 444 | dev_dbg(&drv_data->pdev->dev, "read: write_TDBR\n"); |
445 | if (n_bytes % 2) { | 445 | if (!(n_bytes % 2)) { |
446 | u16 *buf = (u16 *)drv_data->rx; | 446 | u16 *buf = (u16 *)drv_data->rx; |
447 | for (loop = 0; loop < n_bytes / 2; loop++) { | 447 | for (loop = 0; loop < n_bytes / 2; loop++) { |
448 | *buf++ = bfin_read(&drv_data->regs->rdbr); | 448 | *buf++ = bfin_read(&drv_data->regs->rdbr); |
@@ -458,7 +458,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id) | |||
458 | } else if (drv_data->tx) { | 458 | } else if (drv_data->tx) { |
459 | /* write */ | 459 | /* write */ |
460 | dev_dbg(&drv_data->pdev->dev, "write: write_TDBR\n"); | 460 | dev_dbg(&drv_data->pdev->dev, "write: write_TDBR\n"); |
461 | if (n_bytes % 2) { | 461 | if (!(n_bytes % 2)) { |
462 | u16 *buf = (u16 *)drv_data->tx; | 462 | u16 *buf = (u16 *)drv_data->tx; |
463 | for (loop = 0; loop < n_bytes / 2; loop++) { | 463 | for (loop = 0; loop < n_bytes / 2; loop++) { |
464 | bfin_read(&drv_data->regs->rdbr); | 464 | bfin_read(&drv_data->regs->rdbr); |
@@ -587,6 +587,7 @@ static void bfin_spi_pump_transfers(unsigned long data) | |||
587 | if (message->state == DONE_STATE) { | 587 | if (message->state == DONE_STATE) { |
588 | dev_dbg(&drv_data->pdev->dev, "transfer: all done!\n"); | 588 | dev_dbg(&drv_data->pdev->dev, "transfer: all done!\n"); |
589 | message->status = 0; | 589 | message->status = 0; |
590 | bfin_spi_flush(drv_data); | ||
590 | bfin_spi_giveback(drv_data); | 591 | bfin_spi_giveback(drv_data); |
591 | return; | 592 | return; |
592 | } | 593 | } |
@@ -870,8 +871,10 @@ static void bfin_spi_pump_transfers(unsigned long data) | |||
870 | message->actual_length += drv_data->len_in_bytes; | 871 | message->actual_length += drv_data->len_in_bytes; |
871 | /* Move to next transfer of this msg */ | 872 | /* Move to next transfer of this msg */ |
872 | message->state = bfin_spi_next_transfer(drv_data); | 873 | message->state = bfin_spi_next_transfer(drv_data); |
873 | if (drv_data->cs_change) | 874 | if (drv_data->cs_change && message->state != DONE_STATE) { |
875 | bfin_spi_flush(drv_data); | ||
874 | bfin_spi_cs_deactive(drv_data, chip); | 876 | bfin_spi_cs_deactive(drv_data, chip); |
877 | } | ||
875 | } | 878 | } |
876 | 879 | ||
877 | /* Schedule next transfer tasklet */ | 880 | /* Schedule next transfer tasklet */ |
@@ -1026,7 +1029,6 @@ static int bfin_spi_setup(struct spi_device *spi) | |||
1026 | chip->cs_chg_udelay = chip_info->cs_chg_udelay; | 1029 | chip->cs_chg_udelay = chip_info->cs_chg_udelay; |
1027 | chip->idle_tx_val = chip_info->idle_tx_val; | 1030 | chip->idle_tx_val = chip_info->idle_tx_val; |
1028 | chip->pio_interrupt = chip_info->pio_interrupt; | 1031 | chip->pio_interrupt = chip_info->pio_interrupt; |
1029 | spi->bits_per_word = chip_info->bits_per_word; | ||
1030 | } else { | 1032 | } else { |
1031 | /* force a default base state */ | 1033 | /* force a default base state */ |
1032 | chip->ctl_reg &= bfin_ctl_reg; | 1034 | chip->ctl_reg &= bfin_ctl_reg; |