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Commit 08de1014 authored by Jingchang Lu's avatar Jingchang Lu Committed by Greg Kroah-Hartman
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serial: fsl-lpuart: add lpuart32 power management support 



This adds 32-bit register lpuart32 power management support,
this also updates the 8-bit register lpuart resume function.

Signed-off-by: default avatarJingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5483c10e

drivers/tty/serial/fsl_lpuart.c

+14 −0
Original line number Diff line number Diff line
@@ -1862,6 +1862,20 @@ static int lpuart_suspend(struct device *dev) 
static int lpuart_resume(struct device *dev)

{

	struct lpuart_port *sport = dev_get_drvdata(dev);

	unsigned long temp;



	if (sport->lpuart32) {

		lpuart32_setup_watermark(sport);

		temp = lpuart32_read(sport->port.membase + UARTCTRL);

		temp |= (UARTCTRL_RIE | UARTCTRL_TIE | UARTCTRL_RE |

			 UARTCTRL_TE | UARTCTRL_ILIE);

		lpuart32_write(temp, sport->port.membase + UARTCTRL);

	} else {

		lpuart_setup_watermark(sport);

		temp = readb(sport->port.membase + UARTCR2);

		temp |= (UARTCR2_RIE | UARTCR2_TIE | UARTCR2_RE | UARTCR2_TE);

		writeb(temp, sport->port.membase + UARTCR2);

	}



	uart_resume_port(&lpuart_reg, &sport->port);