[PATCH v2 4/4] serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly

[Michal Simek]

From: Nava kishore Manne <nava.ma...@xilinx.com>

This patch Correct the RX interrupt mask value to handle the
RX interrupts properly.

Fixes: c8dbdc842d30 ("serial: xuartps: Rewrite the interrupt handling logic")
Signed-off-by: Nava kishore Manne <nava.ma...@xilinx.com>
Signed-off-by: Michal Simek <michal.si...@xilinx.com>
---

Changes in v2:
- Fix Nava's email address to align with patch email address

 drivers/tty/serial/xilinx_uartps.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c 
b/drivers/tty/serial/xilinx_uartps.c
index c6d38617d622..094f2958cb2b 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -123,7 +123,7 @@
 #define CDNS_UART_IXR_RXTRIG   0x00000001 /* RX FIFO trigger interrupt */
 #define CDNS_UART_IXR_RXFULL   0x00000004 /* RX FIFO full interrupt. */
 #define CDNS_UART_IXR_RXEMPTY  0x00000002 /* RX FIFO empty interrupt. */
-#define CDNS_UART_IXR_MASK     0x00001FFF /* Valid bit mask */
+#define CDNS_UART_IXR_RXMASK   0x000021e7 /* Valid RX bit mask */
 
        /*
         * Do not enable parity error interrupt for the following
@@ -364,7 +364,7 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id)
                cdns_uart_handle_tx(dev_id);
                isrstatus &= ~CDNS_UART_IXR_TXEMPTY;
        }
-       if (isrstatus & CDNS_UART_IXR_MASK)
+       if (isrstatus & CDNS_UART_IXR_RXMASK)
                cdns_uart_handle_rx(dev_id, isrstatus);
 
        spin_unlock(&port->lock);
-- 
1.9.1