[PATCH] serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
From: Michal Simek <hidden>
Date: 2018-12-05 13:21:35
Also in:
linux-serial, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
From: Nava kishore Manne <redacted>
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 <redacted>
Signed-off-by: Michal Simek <redacted>
---
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
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