[PATCH 6/7] serial: uartps: Fix the ignore_status

From: Shubhrajyoti Datta
Date: Fri Apr 29 2022 - 04:15:07 EST


Currently the ignore_status is not considered in the isr.
Also the ignore_status is not updated in the set_termios.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
---
drivers/tty/serial/xilinx_uartps.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 289d70914956..81ba69c57716 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -375,6 +375,8 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id)
isrstatus &= ~CDNS_UART_IXR_TXEMPTY;
}

+ isrstatus &= port->read_status_mask;
+ isrstatus &= ~port->ignore_status_mask;
/*
* Skip RX processing if RX is disabled as RXEMPTY will never be set
* as read bytes will not be removed from the FIFO.
@@ -1583,6 +1585,8 @@ static int cdns_uart_probe(struct platform_device *pdev)
port->dev = &pdev->dev;
port->uartclk = clk_get_rate(cdns_uart_data->uartclk);
port->private_data = cdns_uart_data;
+ port->read_status_mask = CDNS_UART_IXR_TXEMPTY | CDNS_UART_IXR_RXTRIG |
+ CDNS_UART_IXR_OVERRUN | CDNS_UART_IXR_TOUT;
cdns_uart_data->port = port;
platform_set_drvdata(pdev, port);

--
2.25.1