diff options
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 38d2245..b66636b 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1322,11 +1322,13 @@ static irqreturn_t pl011_int(int irq, void *dev_id) struct uart_amba_port *uap = dev_id; unsigned long flags; unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT; + u16 imsc; int handled = 0; unsigned int dummy_read; spin_lock_irqsave(&uap->port.lock, flags); - status = readw(uap->port.membase + UART011_MIS); + imsc = readw(uap->port.membase + UART011_IMSC); + status = readw(uap->port.membase + UART011_RIS) & imsc; if (status) { do { if (uap->vendor->cts_event_workaround) { @@ -1361,7 +1363,7 @@ static irqreturn_t pl011_int(int irq, void *dev_id) if (pass_counter-- == 0) break; - status = readw(uap->port.membase + UART011_MIS); + status = readw(uap->port.membase + UART011_RIS) & imsc; } while (status != 0); handled = 1; } |
