spi: omap2-mcspi: Add calls for pinctrl state select
PATCH v2 1/1 spi: omap2-mcspi: Add calls for pinctrl state select
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(-)
drivers/spi/spi-omap2-mcspi.c +11 -1
@@ -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, };
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2.4.3
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