spi: omap2-mcspi: Add calls for pinctrl state select
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 <pascal.huerst@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 1f8903d..02aa1d0 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>
@@ -1536,14 +1537,23 @@
}
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,
};