From: Pascal Huerst <[email protected]> This adds calls to pinctrl subsystem in order to switch pin states on suspend/resume if you provide a "sleep" state in DT.
If no "sleep" state is provided in DT, these calls turn to NOPs. Signed-off-by: Pascal Huerst <[email protected]> --- drivers/spi/spi-omap2-mcspi.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 3d09e0b..2c099c5 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -24,6 +24,7 @@ #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/omap-dma.h> +#include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> #include <linux/err.h> #include <linux/clk.h> @@ -1508,14 +1509,23 @@ static int omap2_mcspi_resume(struct device *dev) } pm_runtime_mark_last_busy(mcspi->dev); pm_runtime_put_autosuspend(mcspi->dev); - return 0; + + return pinctrl_pm_select_default_state(dev); +} + +static int omap2_mcspi_suspend(struct device *dev) +{ + return pinctrl_pm_select_sleep_state(dev); } + #else +#define omap2_mcspi_suspend NULL #define omap2_mcspi_resume NULL #endif static const struct dev_pm_ops omap2_mcspi_pm_ops = { .resume = omap2_mcspi_resume, + .suspend = omap2_mcspi_suspend, .runtime_resume = omap_mcspi_runtime_resume, }; -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
