diff options
| author | Fugang Duan <b38611@freescale.com> | 2015-08-31 11:39:15 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@nxp.com> | 2016-01-14 11:00:10 -0600 |
| commit | e4732c0e9e04ff911fff088cbaf558cd9562067c (patch) | |
| tree | 8ee3e91067bb27110ed886e916cc6525c6252b7c /drivers/tty/serial/imx.c | |
| parent | 76aeb822f30fea7f2d01da7d6ca3da149af46fc1 (diff) | |
MLK-11456-01 tty: serial: imx: add pinctrl sleep mode support
For LPSR mode, UART iomux settings will be lost after resume,
so add pinctrl sleep mode support.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 3e6b173057a3..21acb74ff572 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1865,6 +1865,8 @@ static int serial_imx_suspend(struct platform_device *dev, pm_message_t state) sport->saved_reg[9] = readl(sport->port.membase + IMX21_UTS); clk_disable_unprepare(sport->clk_ipg); + pinctrl_pm_select_sleep_state(&dev->dev); + return 0; } @@ -1873,6 +1875,8 @@ static int serial_imx_resume(struct platform_device *dev) struct imx_port *sport = platform_get_drvdata(dev); unsigned int val; + pinctrl_pm_select_default_state(&dev->dev); + clk_prepare_enable(sport->clk_ipg); writel(sport->saved_reg[4], sport->port.membase + UFCR); writel(sport->saved_reg[5], sport->port.membase + UESC); |