commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=eef1d671843f85ee476ef34e259b29b00b74696d branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/2010R1
Poll the FIFO till it is empty before deassert SSEL in pump_transfers in soft irq mode. No polling is necessary in interrupt mode and error handling. Signed-off-by: Sonic Zhang <[email protected]> --- drivers/spi/spi_bfin5xx.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 3971d9c..6ad1d8d 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -870,8 +870,10 @@ 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 && message->state != DONE_STATE) + 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 */
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