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    Subject[PATCH 5/5] Input: ti_am335x_tsc: Mark IRQ as wakeup capable
    Date
    On AM335x, ti_am335x_tsc can wake up the system from suspend, mark the
    IRQ as wakeup capable, so that device irq is not disabled during system
    suspend.

    Signed-off-by: Vignesh R <vigneshr@ti.com>
    ---
    drivers/input/touchscreen/ti_am335x_tsc.c | 6 ++++++
    1 file changed, 6 insertions(+)

    diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
    index a4f25a915ffc..9e8684ab48f4 100644
    --- a/drivers/input/touchscreen/ti_am335x_tsc.c
    +++ b/drivers/input/touchscreen/ti_am335x_tsc.c
    @@ -27,6 +27,7 @@
    #include <linux/of.h>
    #include <linux/of_device.h>
    #include <linux/sort.h>
    +#include <linux/pm_wakeirq.h>

    #include <linux/mfd/ti_am335x_tscadc.h>

    @@ -439,6 +440,9 @@ static int titsc_probe(struct platform_device *pdev)
    }

    device_init_wakeup(&pdev->dev, true);
    + err = dev_pm_set_wake_irq(&pdev->dev, ts_dev->irq);
    + if (err)
    + dev_err(&pdev->dev, "irq wake enable failed.\n");

    titsc_writel(ts_dev, REG_IRQSTATUS, TSC_IRQENB_MASK);
    titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO0THRES);
    @@ -471,6 +475,7 @@ static int titsc_probe(struct platform_device *pdev)
    return 0;

    err_free_irq:
    + dev_pm_clear_wake_irq(&pdev->dev);
    device_init_wakeup(&pdev->dev, false);
    free_irq(ts_dev->irq, ts_dev);
    err_free_mem:
    @@ -484,6 +489,7 @@ static int titsc_remove(struct platform_device *pdev)
    struct titsc *ts_dev = platform_get_drvdata(pdev);
    u32 steps;

    + dev_pm_clear_wake_irq(&pdev->dev);
    device_init_wakeup(&pdev->dev, false);
    free_irq(ts_dev->irq, ts_dev);

    --
    2.18.0
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