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[PATCH] Input: ti_am335x_tsc - Mark IRQ as wakeup capable

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  [PATCH] Input: ti_am335x_tsc - Mark IRQ as wakeup capable Vignesh R <vigneshr@ti.com> - 2016-05-06 12:20 +0200
    Re: [PATCH] Input: ti_am335x_tsc - Mark IRQ as wakeup capable "R, Vignesh" <vigneshr@ti.com> - 2016-05-06 18:00 +0200

#1395757 — [PATCH] Input: ti_am335x_tsc - Mark IRQ as wakeup capable

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 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 8b3f15ca7725..423f275ffab8 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>
 
@@ -432,6 +433,12 @@ static int titsc_probe(struct platform_device *pdev)
 		goto err_free_mem;
 	}
 
+	if (device_may_wakeup(tscadc_dev->dev)) {
+		err = dev_pm_set_wake_irq(tscadc_dev->dev, ts_dev->irq);
+		if (err)
+			dev_err(&pdev->dev, "irq wake enable failed.\n");
+	}
+
 	titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO0THRES);
 	titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_EOS);
 	err = titsc_config_wires(ts_dev);
-- 
2.8.2

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#1395952

On 5/6/2016 3:46 PM, Vignesh R wrote:
> 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 | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
> index 8b3f15ca7725..423f275ffab8 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>
>  
> @@ -432,6 +433,12 @@ static int titsc_probe(struct platform_device *pdev)
>  		goto err_free_mem;
>  	}
>  
> +	if (device_may_wakeup(tscadc_dev->dev)) {
> +		err = dev_pm_set_wake_irq(tscadc_dev->dev, ts_dev->irq);
> +		if (err)
> +			dev_err(&pdev->dev, "irq wake enable failed.\n");
> +	}
> +

I forgot dev_pm_clear_wake_irq() here. Will repost, sorry for the noise.

Regards
Vignesh

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