From: Linus Walleij <linus.walleij@linaro.org>
To: Jonathan Cameron <jic23@kernel.org>, linux-iio@vger.kernel.org
Cc: Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH 2/2] iio: gyro: mpu3050: Store timestamp in poll function
Date: Mon, 30 Nov 2020 13:59:15 +0100 [thread overview]
Message-ID: <20201130125915.1315667-2-linus.walleij@linaro.org> (raw)
In-Reply-To: <20201130125915.1315667-1-linus.walleij@linaro.org>
If something other than the MPU3050 itself is using this
trigger, the timestamp needs to be stored in the poll
function.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/iio/gyro/mpu3050-core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index 0d0850945d3a..b892487394ea 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -457,7 +457,7 @@ static int mpu3050_write_raw(struct iio_dev *indio_dev,
static irqreturn_t mpu3050_trigger_handler(int irq, void *p)
{
- const struct iio_poll_func *pf = p;
+ struct iio_poll_func *pf = p;
struct iio_dev *indio_dev = pf->indio_dev;
struct mpu3050 *mpu3050 = iio_priv(indio_dev);
int ret;
@@ -482,6 +482,9 @@ static irqreturn_t mpu3050_trigger_handler(int irq, void *p)
else
timestamp = iio_get_time_ns(indio_dev);
+ /* Someone else may be using us as trigger */
+ pf->timestamp = timestamp;
+
mutex_lock(&mpu3050->lock);
/* Using the hardware IRQ trigger? Check the buffer then. */
--
2.26.2
next prev parent reply other threads:[~2020-11-30 13:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-30 12:59 [PATCH 1/2] iio: gyro: mpu3050: Use devm_ to set up buffer Linus Walleij
2020-11-30 12:59 ` Linus Walleij [this message]
2020-11-30 21:07 ` [PATCH 2/2] iio: gyro: mpu3050: Store timestamp in poll function Jonathan Cameron
2020-12-01 12:41 ` Linus Walleij
2020-11-30 20:51 ` [PATCH 1/2] iio: gyro: mpu3050: Use devm_ to set up buffer Jonathan Cameron
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