Linux-IIO Archive on lore.kernel.org
 help / color / Atom feed
From: Sean Nyekjaer <sean@geanix.com>
To: linux-iio@vger.kernel.org, jic23@kernel.org,
	lorenzo.bianconi83@gmail.com
Cc: Sean Nyekjaer <sean@geanix.com>,
	denis.ciocca@st.com, mario.tesi@st.com, armando.visconti@st.com,
	martin@geanix.com
Subject: [PATCH v8 3/5] iio: imu: st_lsm6dsx: add wakeup-source option
Date: Fri, 13 Sep 2019 11:07:06 +0200
Message-ID: <20190913090708.1442057-4-sean@geanix.com> (raw)
In-Reply-To: <20190913090708.1442057-1-sean@geanix.com>

This add ways for the SoC to wake from accelerometer wake events.

In the suspend function we skip disabling the sensor if wakeup-source
and events are activated.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
---
Changes since v4:
 * More devices supports wakeup

Changes since v5:
 * None

Changes since v6:
 * None

Changes since v7:
 * Add check for hw->enable_event
 * Moved disable_irq_wake section so it's called
 * Removed not neeeded continue from disable_irq_wake section

 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 4198ba263d03..810807c52d5f 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -1858,6 +1858,9 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id,
 			return err;
 	}
 
+	if (dev->of_node && of_property_read_bool(dev->of_node, "wakeup-source"))
+		device_init_wakeup(dev, true);
+
 	return 0;
 }
 EXPORT_SYMBOL(st_lsm6dsx_probe);
@@ -1876,6 +1879,13 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev)
 		if (!(hw->enable_mask & BIT(sensor->id)))
 			continue;
 
+		if (device_may_wakeup(dev) && i == ST_LSM6DSX_ID_ACC &&
+		    hw->enable_event) {
+			/* Enable wake from IRQ */
+			enable_irq_wake(hw->irq);
+			continue;
+		}
+
 		if (sensor->id == ST_LSM6DSX_ID_EXT0 ||
 		    sensor->id == ST_LSM6DSX_ID_EXT1 ||
 		    sensor->id == ST_LSM6DSX_ID_EXT2)
@@ -1904,6 +1914,10 @@ static int __maybe_unused st_lsm6dsx_resume(struct device *dev)
 		if (!hw->iio_devs[i])
 			continue;
 
+		if (device_may_wakeup(dev) && i == ST_LSM6DSX_ID_ACC &&
+		    hw->enable_event)
+			disable_irq_wake(hw->irq);
+
 		sensor = iio_priv(hw->iio_devs[i]);
 		if (!(hw->suspend_mask & BIT(sensor->id)))
 			continue;
-- 
2.23.0


  parent reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-13  9:07 [PATCH v8 0/5] enable motion events for st_lsm6dsx Sean Nyekjaer
2019-09-13  9:07 ` [PATCH v8 1/5] iio: imu: st_lsm6dsx: move interrupt thread to core Sean Nyekjaer
2019-09-13  9:07 ` [PATCH v8 2/5] iio: imu: st_lsm6dsx: add motion events Sean Nyekjaer
2019-09-13  9:07 ` Sean Nyekjaer [this message]
2019-09-15 13:42   ` [PATCH v8 3/5] iio: imu: st_lsm6dsx: add wakeup-source option Lorenzo Bianconi
2019-09-13  9:07 ` [PATCH v8 4/5] iio: imu: st_lsm6dsx: always enter interrupt thread Sean Nyekjaer
2019-09-15 12:33   ` Jonathan Cameron
2019-09-15 12:48     ` Lorenzo Bianconi
2019-09-15 13:00       ` Jonathan Cameron
2019-09-15 13:07         ` Lorenzo Bianconi
2019-09-13  9:07 ` [PATCH v8 5/5] iio: imu: st_lsm6dsx: add motion report function and call from interrupt Sean Nyekjaer
2019-09-15 12:30   ` Jonathan Cameron
2019-09-15 13:05     ` Lorenzo Bianconi
2019-09-15 13:18       ` Jonathan Cameron
2019-09-15 13:22         ` Sean Nyekjaer
2019-09-15 13:35           ` Jonathan Cameron
2019-09-16  9:02             ` [RFC PATCH] iio: imu: st_lsm6dsx: filter motion events in driver Sean Nyekjaer
2019-09-16  9:16               ` Lorenzo Bianconi
2019-09-16 11:29                 ` Sean Nyekjaer
2019-09-16 11:55                   ` Lorenzo Bianconi
2019-09-16 12:09                     ` Sean Nyekjaer
2019-09-16 12:22                       ` Lorenzo Bianconi
2019-09-15 13:41         ` [PATCH v8 5/5] iio: imu: st_lsm6dsx: add motion report function and call from interrupt Lorenzo Bianconi

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190913090708.1442057-4-sean@geanix.com \
    --to=sean@geanix.com \
    --cc=armando.visconti@st.com \
    --cc=denis.ciocca@st.com \
    --cc=jic23@kernel.org \
    --cc=linux-iio@vger.kernel.org \
    --cc=lorenzo.bianconi83@gmail.com \
    --cc=mario.tesi@st.com \
    --cc=martin@geanix.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-IIO Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-iio/0 linux-iio/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-iio linux-iio/ https://lore.kernel.org/linux-iio \
		linux-iio@vger.kernel.org linux-iio@archiver.kernel.org
	public-inbox-index linux-iio


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-iio


AGPL code for this site: git clone https://public-inbox.org/ public-inbox