linux-kernel - [PATCH RFC 5/9] iio: consumer: Add new API iio_pollfunc_get

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Message-ID: <20250519-timestamp-v1-5-fcb4f6c2721c@gmail.com>
Date: Mon, 19 May 2025 23:25:57 +0900
From: Gyeyoung Baek <gye976@...il.com>
To: Jonathan Cameron <jic23@...nel.org>,
	David Lechner <dlechner@...libre.com>,
	Nuno Sá <nuno.sa@...log.com>,
	Andy Shevchenko <andy@...nel.org>
Cc: Gyeyoung Baek <gye976@...il.com>,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH RFC 5/9] iio: consumer: Add new API iio_pollfunc_get_timestamp()

As the timestamp is automatically grabbed,
the consumer can simply read it using this API.

Signed-off-by: Gyeyoung Baek <gye976@...il.com>
---
 drivers/iio/industrialio-trigger.c   | 6 ++++++
 include/linux/iio/trigger_consumer.h | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 1a7bab2741af..d6b0e1ec4153 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -398,6 +398,12 @@ int iio_trigger_detach_poll_func(struct iio_trigger *trig,
 	return ret;
 }
 
+s64 iio_pollfunc_get_timestamp(struct iio_poll_func *pf)
+{
+	return pf->timestamp;
+}
+EXPORT_SYMBOL(iio_pollfunc_get_timestamp);
+
 /*
  * Will be deprecated.
  * We do not need to set this as a top half manually to grab a timestamp.
diff --git a/include/linux/iio/trigger_consumer.h b/include/linux/iio/trigger_consumer.h
index 213cd8560518..279c88cae675 100644
--- a/include/linux/iio/trigger_consumer.h
+++ b/include/linux/iio/trigger_consumer.h
@@ -65,8 +65,11 @@ __printf(5, 6) struct iio_poll_func
 		    struct iio_dev *indio_dev,
 		    const char *fmt,
 		    ...);
+
 void iio_dealloc_pollfunc(struct iio_poll_func *pf);
+
 irqreturn_t iio_pollfunc_store_time(int irq, void *p);
+s64 iio_pollfunc_get_timestamp(struct iio_poll_func *pf);
 
 void iio_trigger_notify_done(struct iio_trigger *trig);
 

-- 
2.43.0