Messages in this thread Patch in this message | | | From | Soren Brinkmann <> | Subject | [PATH RESEND v2 04/10] tty: xuartps: Clear interrupt status register in shutdown | Date | Thu, 19 Nov 2015 12:02:18 -0800 |
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When shutting down the UART, clear the interrupt status register.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> --- drivers/tty/serial/xilinx_uartps.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index df6778d17949..b7fc30639292 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -825,6 +825,7 @@ static void cdns_uart_shutdown(struct uart_port *port) /* Disable interrupts */ status = readl(port->membase + CDNS_UART_IMR_OFFSET); writel(status, port->membase + CDNS_UART_IDR_OFFSET); + writel(0xffffffff, port->membase + CDNS_UART_ISR_OFFSET); /* Disable the TX and RX */ writel(CDNS_UART_CR_TX_DIS | CDNS_UART_CR_RX_DIS, -- 2.6.3.3.g9bb996a
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