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| author | Nava kishore Manne <nava.manne@xilinx.com> | 2018-12-18 13:18:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-09 17:14:51 +0100 |
| commit | 5110d0b4c2319e9cc300271525b197af201df2bf (patch) | |
| tree | 527c7690a9dac9f70603fdaaa398167a19748d4a /drivers/tty/serial | |
| parent | c5e4022f25d05429c53cafe84701b5136e628663 (diff) | |
| download | linux-stable-5110d0b4c2319e9cc300271525b197af201df2bf.tar.gz linux-stable-5110d0b4c2319e9cc300271525b197af201df2bf.tar.bz2 linux-stable-5110d0b4c2319e9cc300271525b197af201df2bf.zip | |
serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
commit 260683137ab5276113fc322fdbbc578024185fee upstream.
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.manne@xilinx.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/xilinx_uartps.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 21c35ad72b99..897b1c515d00 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -130,7 +130,7 @@ MODULE_PARM_DESC(rx_timeout, "Rx timeout, 1-255"); #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 @@ -366,7 +366,7 @@ 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); |