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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-05-23 23:18:40 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-05-23 23:18:40 +0100 |
| commit | fc05505b77f7900a1bb74fb3f3a4343dee4265a4 (patch) | |
| tree | 6517919cb60bd9465078512cacbefd8c77f94b76 /drivers/serial/nwpserial.c | |
| parent | a2ab67fae1ab9226679495a8d260f4e6555efc5f (diff) | |
| parent | 11c79740d3c03cb81f84e98cf2e2dbd8d9bb53cd (diff) | |
Merge branch 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into devel
Diffstat (limited to 'drivers/serial/nwpserial.c')
| -rw-r--r-- | drivers/serial/nwpserial.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/serial/nwpserial.c b/drivers/serial/nwpserial.c index 32f3eaf0d26..9e150b19d72 100644 --- a/drivers/serial/nwpserial.c +++ b/drivers/serial/nwpserial.c @@ -145,11 +145,13 @@ static irqreturn_t nwpserial_interrupt(int irq, void *dev_id) ch = dcr_read(up->dcr_host, UART_RX); if (up->port.ignore_status_mask != NWPSERIAL_STATUS_RXVALID) tty_insert_flip_char(tty, ch, TTY_NORMAL); - } while (dcr_read(up->dcr_host, UART_RX) & UART_LSR_DR); + } while (dcr_read(up->dcr_host, UART_LSR) & UART_LSR_DR); tty_flip_buffer_push(tty); ret = IRQ_HANDLED; + /* clear interrupt */ + dcr_write(up->dcr_host, UART_IIR, 1); out: spin_unlock(&up->port.lock); return ret; |