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SubjectRe: [PATCH 5/5] Input: ti_am335x_tsc: Mark IRQ as wakeup capable
On Sat, Jun 30, 2018 at 04:03:18PM +0530, 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>

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.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
>

--
Dmitry

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