2011/8/12 Sonic Zhang <[email protected]>: > From: Sonic Zhang <[email protected]> > > 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]>
Acked-by: Barry Song <[email protected]> it is actually making sure the last message is finished. > --- > drivers/spi/spi-bfin5xx.c | 5 ++++- > 1 files changed, 4 insertions(+), 1 deletions(-) > > diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c > index b8d25f2..7e03e7d 100644 > --- a/drivers/spi/spi-bfin5xx.c > +++ b/drivers/spi/spi-bfin5xx.c > @@ -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) { > + bfin_spi_flush(drv_data); > bfin_spi_cs_deactive(drv_data, chip); > + } > } > > /* Schedule next transfer tasklet */ > -- > 1.7.0.4 > > > _______________________________________________ > Uclinux-dist-devel mailing list > [email protected] > https://blackfin.uclinux.org/mailman/listinfo/uclinux-dist-devel ------------------------------------------------------------------------------ Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
