aboutsummaryrefslogtreecommitdiff
path: root/drivers/spi/spi-bfin-sport.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2012-05-07 23:35:40 -0400
committerDavid S. Miller <davem@davemloft.net>2012-05-07 23:35:40 -0400
commit0d6c4a2e4641bbc556dd74d3aa158c413a972492 (patch)
treeda944af17682659bb433dc2282dcb48380c14cd1 /drivers/spi/spi-bfin-sport.c
parent6e06c0e2347ec79d0bd5702b2438fe883f784545 (diff)
parent1c430a727fa512500a422ffe4712166c550ea06a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/intel/e1000e/param.c drivers/net/wireless/iwlwifi/iwl-agn-rx.c drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c drivers/net/wireless/iwlwifi/iwl-trans.h Resolved the iwlwifi conflict with mainline using 3-way diff posted by John Linville and Stephen Rothwell. In 'net' we added a bug fix to make iwlwifi report a more accurate skb->truesize but this conflicted with RX path changes that happened meanwhile in net-next. In e1000e a conflict arose in the validation code for settings of adapter->itr. 'net-next' had more sophisticated logic so that logic was used. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/spi/spi-bfin-sport.c')
-rw-r--r--drivers/spi/spi-bfin-sport.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c
index 248a2cc671a..1fe51198a62 100644
--- a/drivers/spi/spi-bfin-sport.c
+++ b/drivers/spi/spi-bfin-sport.c
@@ -252,19 +252,15 @@ static void
bfin_sport_spi_restore_state(struct bfin_sport_spi_master_data *drv_data)
{
struct bfin_sport_spi_slave_data *chip = drv_data->cur_chip;
- unsigned int bits = (drv_data->ops == &bfin_sport_transfer_ops_u8 ? 7 : 15);
bfin_sport_spi_disable(drv_data);
dev_dbg(drv_data->dev, "restoring spi ctl state\n");
bfin_write(&drv_data->regs->tcr1, chip->ctl_reg);
- bfin_write(&drv_data->regs->tcr2, bits);
bfin_write(&drv_data->regs->tclkdiv, chip->baud);
- bfin_write(&drv_data->regs->tfsdiv, bits);
SSYNC();
bfin_write(&drv_data->regs->rcr1, chip->ctl_reg & ~(ITCLK | ITFS));
- bfin_write(&drv_data->regs->rcr2, bits);
SSYNC();
bfin_sport_spi_cs_active(chip);
@@ -420,11 +416,15 @@ bfin_sport_spi_pump_transfers(unsigned long data)
drv_data->cs_change = transfer->cs_change;
/* Bits per word setup */
- bits_per_word = transfer->bits_per_word ? : message->spi->bits_per_word;
- if (bits_per_word == 8)
- drv_data->ops = &bfin_sport_transfer_ops_u8;
- else
+ bits_per_word = transfer->bits_per_word ? :
+ message->spi->bits_per_word ? : 8;
+ if (bits_per_word % 16 == 0)
drv_data->ops = &bfin_sport_transfer_ops_u16;
+ else
+ drv_data->ops = &bfin_sport_transfer_ops_u8;
+ bfin_write(&drv_data->regs->tcr2, bits_per_word - 1);
+ bfin_write(&drv_data->regs->tfsdiv, bits_per_word - 1);
+ bfin_write(&drv_data->regs->rcr2, bits_per_word - 1);
drv_data->state = RUNNING_STATE;
@@ -598,11 +598,12 @@ bfin_sport_spi_setup(struct spi_device *spi)
}
chip->cs_chg_udelay = chip_info->cs_chg_udelay;
chip->idle_tx_val = chip_info->idle_tx_val;
- spi->bits_per_word = chip_info->bits_per_word;
}
}
- if (spi->bits_per_word != 8 && spi->bits_per_word != 16) {
+ if (spi->bits_per_word % 8) {
+ dev_err(&spi->dev, "%d bits_per_word is not supported\n",
+ spi->bits_per_word);
ret = -EINVAL;
goto error;
}