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Message-ID: <20180414095153.32060-2-vigneshr@ti.com> Date: Sat, 14 Apr 2018 15:21:51 +0530 From: Vignesh R <vigneshr@...com> To: Dmitry Torokhov <dmitry.torokhov@...il.com> CC: Vignesh R <vigneshr@...com>, Grygorii Strashko <grygorii.strashko@...com>, <linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>, Tony Lindgren <tony@...mide.com> Subject: [PATCH v2 1/3] 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@...com> --- v2: No changes drivers/input/touchscreen/ti_am335x_tsc.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index f1043ae71dcc..810e05c9c4f5 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); @@ -462,6 +469,7 @@ static int titsc_probe(struct platform_device *pdev) return 0; err_free_irq: + dev_pm_clear_wake_irq(tscadc_dev->dev); free_irq(ts_dev->irq, ts_dev); err_free_mem: input_free_device(input_dev); @@ -474,6 +482,7 @@ static int titsc_remove(struct platform_device *pdev) struct titsc *ts_dev = platform_get_drvdata(pdev); u32 steps; + dev_pm_clear_wake_irq(ts_dev->mfd_tscadc->dev); free_irq(ts_dev->irq, ts_dev); /* total steps followed by the enable mask */ -- 2.17.0
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