From: Vignesh R <vigneshr@ti.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Vignesh R <vigneshr@ti.com>,
Grygorii Strashko <grygorii.strashko@ti.com>,
<linux-input@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-omap@vger.kernel.org>, Tony Lindgren <tony@atomide.com>
Subject: [PATCH v2 1/3] Input: ti_am335x_tsc - Mark IRQ as wakeup capable
Date: Sat, 14 Apr 2018 15:21:51 +0530 [thread overview]
Message-ID: <20180414095153.32060-2-vigneshr@ti.com> (raw)
In-Reply-To: <20180414095153.32060-1-vigneshr@ti.com>
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>
---
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
next prev parent reply other threads:[~2018-04-14 9:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-14 9:51 [PATCH v2 0/3] ti_am335x_tsc: Fix suspend/resume Vignesh R
2018-04-14 9:51 ` Vignesh R [this message]
2018-04-16 17:45 ` [PATCH v2 1/3] Input: ti_am335x_tsc - Mark IRQ as wakeup capable Dmitry Torokhov
2018-04-17 8:20 ` Vignesh R
2018-04-14 9:51 ` [PATCH v2 2/3] Input: ti_am335x_tsc - Ack pending IRQs at probe and before suspend Vignesh R
2018-04-16 17:59 ` Dmitry Torokhov
2018-04-17 8:19 ` Vignesh R
2018-04-14 9:51 ` [PATCH v2 3/3] Input: ti_am335x_tsc - Prevent system suspend when TSC is in use Vignesh R
2018-04-16 18:01 ` Dmitry Torokhov
2018-04-17 8:19 ` Vignesh R
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