diff options
| author | Gao Pan <gaopan@freescale.com> | 2015-06-04 16:57:47 +0800 |
|---|---|---|
| committer | Gao Pan <pandy.gao@nxp.com> | 2016-02-26 16:04:32 +0800 |
| commit | 107ea037b85a15187a3e683076a885540bcf90a7 (patch) | |
| tree | 406dcaa75214fc847297cbe5d3c7e2a6f845b34b | |
| parent | a2eb2786d72a15af3fab1856787e20af20f58385 (diff) | |
MLK-11405 spi: imx : sets spi IOMUX to default state
SPI IOMUX is changed into reset state in LPSR mode. As a result,
spi can't work again.
This patch sets spi IOMUX to default state.
(cherry-picked from commit 2c8603c31831bb355f6be5b015377fb8fbd89844)
Signed-off-by: Gao Pan <b54642@freescale.com>
| -rw-r--r-- | drivers/spi/spi-imx.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 3e10ca8a50ef..8c0e0ccff1de 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -1315,11 +1315,31 @@ static int spi_imx_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int spi_imx_suspend(struct device *dev) +{ + pinctrl_pm_select_sleep_state(dev); + return 0; +} + +static int spi_imx_resume(struct device *dev) +{ + pinctrl_pm_select_default_state(dev); + return 0; +} + +static SIMPLE_DEV_PM_OPS(imx_spi_pm, spi_imx_suspend, spi_imx_resume); +#define IMX_SPI_PM (&imx_spi_pm) +#else +#define IMX_SPI_PM NULL +#endif + static struct platform_driver spi_imx_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = spi_imx_dt_ids, - }, + .pm = IMX_SPI_PM, + }, .id_table = spi_imx_devtype, .probe = spi_imx_probe, .remove = spi_imx_remove, |