From: Daniel Mack <daniel@zonque.org>
To: dmitry.torokhov@gmail.com, robh+dt@kernel.org,
mark.rutland@arm.com, shawnguo@kernel.org, kernel@pengutronix.de,
fabio.estevam@nxp.com
Cc: devicetree@vger.kernel.org, Daniel Mack <daniel@zonque.org>,
linux-arm-kernel@lists.infradead.org,
linux-input@vger.kernel.org
Subject: [PATCH 2/3] input: touchscreen: edt-ft5x06: assert reset during suspend
Date: Wed, 16 May 2018 14:28:28 +0200 [thread overview]
Message-ID: <20180516122829.23694-3-daniel@zonque.org> (raw)
In-Reply-To: <20180516122829.23694-1-daniel@zonque.org>
If the device is not configured as wakeup source, it can be put in reset
during suspend to save some power.
Signed-off-by: Daniel Mack <daniel@zonque.org>
---
drivers/input/touchscreen/edt-ft5x06.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 955f085627fa..c34a0b23f90a 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1036,9 +1036,12 @@ static int edt_ft5x06_ts_remove(struct i2c_client *client)
static int __maybe_unused edt_ft5x06_ts_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
+ struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
if (device_may_wakeup(dev))
enable_irq_wake(client->irq);
+ else if (tsdata->reset_gpio)
+ gpiod_set_value_cansleep(tsdata->reset_gpio, 1);
return 0;
}
@@ -1046,9 +1049,12 @@ static int __maybe_unused edt_ft5x06_ts_suspend(struct device *dev)
static int __maybe_unused edt_ft5x06_ts_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
+ struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
if (device_may_wakeup(dev))
disable_irq_wake(client->irq);
+ else if (tsdata->reset_gpio)
+ gpiod_set_value_cansleep(tsdata->reset_gpio, 0);
return 0;
}
--
2.14.3
next prev parent reply other threads:[~2018-05-16 12:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 12:28 [PATCH 0/3] input: touchscreen: edt-ft5x06: make wakeup source behavior configurable Daniel Mack
2018-05-16 12:28 ` [PATCH 1/3] " Daniel Mack
2018-05-16 17:03 ` Dmitry Torokhov
2018-05-17 8:48 ` Daniel Mack
2018-05-16 12:28 ` Daniel Mack [this message]
2018-05-16 17:05 ` [PATCH 2/3] input: touchscreen: edt-ft5x06: assert reset during suspend Dmitry Torokhov
2018-05-16 12:28 ` [PATCH 3/3] ARM: dts: imx28/imx53: enable edt-ft5x06 wakeup source Daniel Mack
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