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Message-ID: <1446708079-1105-5-git-send-email-soren.brinkmann@xilinx.com> Date: Wed, 4 Nov 2015 23:21:13 -0800 From: Soren Brinkmann <soren.brinkmann@...inx.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.com> CC: Michal Simek <michal.simek@...inx.com>, <linux-serial@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, Soren Brinkmann <soren.brinkmann@...inx.com> Subject: [PATCH v2 04/10] tty: xuartps: Clear interrupt status register in shutdown When shutting down the UART, clear the interrupt status register. Signed-off-by: Soren Brinkmann <soren.brinkmann@...inx.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, -- 2.6.2.3.ga463a5b -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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