diff options
Diffstat (limited to 'drivers/ipack/devices')
| -rw-r--r-- | drivers/ipack/devices/ipoctal.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index 850f10506a7..f2875f0f14d 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c @@ -177,10 +177,6 @@ static void ipoctal_irq_tx(struct ipoctal_channel *channel) (*pointer_write)++; *pointer_write = *pointer_write % PAGE_SIZE; channel->nb_bytes--; - - if (channel->nb_bytes == 0 && - channel->board_id != IPACK1_DEVICE_ID_SBS_OCTAL_485) - iowrite8(CR_DISABLE_TX, &channel->regs->w.cr); } static void ipoctal_irq_channel(struct ipoctal_channel *channel) @@ -196,14 +192,14 @@ static void ipoctal_irq_channel(struct ipoctal_channel *channel) isr = ioread8(&channel->block_regs->r.isr); sr = ioread8(&channel->regs->r.sr); - /* In case of RS-485, change from TX to RX when finishing TX. - * Half-duplex. */ - if ((channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) && - (sr & SR_TX_EMPTY) && (channel->nb_bytes == 0)) { - iowrite8(CR_DISABLE_TX, &channel->regs->w.cr); - iowrite8(CR_CMD_NEGATE_RTSN, &channel->regs->w.cr); - iowrite8(CR_ENABLE_RX, &channel->regs->w.cr); + if ((sr & SR_TX_EMPTY) && (channel->nb_bytes == 0)) { iowrite8(CR_DISABLE_TX, &channel->regs->w.cr); + /* In case of RS-485, change from TX to RX when finishing TX. + * Half-duplex. */ + if (channel->board_id == IPACK1_DEVICE_ID_SBS_OCTAL_485) { + iowrite8(CR_CMD_NEGATE_RTSN, &channel->regs->w.cr); + iowrite8(CR_ENABLE_RX, &channel->regs->w.cr); + } } /* RX data */ |