MLK-11403: I2C: imx: restore pin setting for i2c

restore pin setting for i2c in suspend/resume

Signed-off-by: Gao Pan <gaopan@freescale.com>

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index d8ad358..17c319c 100644 (file)
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1209,6 +1209,7 @@ static int i2c_imx_runtime_suspend(struct device *dev)
        struct imx_i2c_struct *i2c_imx = dev_get_drvdata(dev);
 
        clk_disable_unprepare(i2c_imx->clk);
+       pinctrl_pm_select_sleep_state(dev);
 
        return 0;
 }
@@ -1218,6 +1219,7 @@ static int i2c_imx_runtime_resume(struct device *dev)
        struct imx_i2c_struct *i2c_imx = dev_get_drvdata(dev);
        int ret;
 
+       pinctrl_pm_select_default_state(dev);
        ret = clk_prepare_enable(i2c_imx->clk);
        if (ret)
                dev_err(dev, "can't enable I2C clock, ret=%d\n", ret);