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spi/spi-bfin5xx: Fix flush of last bit after each spi transfer

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This patch ensures that the last bit of a transfer gets correctly
flushed out of the register.

Signed-off-by: Scott Jiang <[email protected]>
Signed-off-by: Grant Likely <[email protected]>
This commit is contained in:
Scott Jiang 2012-04-23 18:18:13 -04:00 • committed by Grant Likely
commit 2431a81546
1 changed files with 4 additions and 1 deletions
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5
drivers/spi/spi-bfin5xx.c
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@ -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 */