Commit 80a955da authored Jul 29, 2022 by Shubhrajyoti Datta Committed by Greg Kroah-Hartman Oct 26, 2022

tty: xilinx_uartps: Fix the ignore_status



[ Upstream commit b8a6c3b3d4654fba19881cc77da61eac29f57cae ]

Currently the ignore_status is not considered in the isr.
Add a check to add the ignore_status.

Fixes: 61ec9016 ("tty/serial: add support for Xilinx PS UART")
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/20220729114748.18332-5-shubhrajyoti.datta@xilinx.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 3e77ac46

drivers/tty/serial/xilinx_uartps.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -369,6 +369,8 @@ 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.