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[87.92.218.151]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-393f60db4dasm17810681fa.20.2026.05.10.01.26.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 May 2026 01:26:06 -0700 (PDT) From: Md Shofiqul Islam To: jic23@kernel.org Cc: lars@metafoo.de, Michael.Hennerich@analog.com, dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Md Shofiqul Islam Subject: [PATCH 3/5] iio: accel: adxl367: Add timestamp to FIFO data Date: Sun, 10 May 2026 11:25:54 +0300 Message-ID: <20260510082556.3867-4-shofiqtest@gmail.com> X-Mailer: git-send-email 2.54.0.windows.1 In-Reply-To: <20260510082556.3867-1-shofiqtest@gmail.com> References: <20260510082556.3867-1-shofiqtest@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The driver pushes FIFO samples using iio_push_to_buffers() which does not attach a hardware timestamp to the data. Add a scan buffer struct with an aligned_s64 timestamp field to the driver state, capture a single timestamp per IRQ with iio_get_time_ns() in the IRQ handler, and pass it into adxl367_push_fifo_data() (whose signature gains a s64 ts parameter) to switch the FIFO push loop to iio_push_to_buffers_with_timestamp(). Signed-off-by: Md Shofiqul Islam --- drivers/iio/accel/adxl367.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/iio/accel/adxl367.c b/drivers/iio/accel/adxl367.c index 0c04b2bb7e..2852f2fdfa 100644 --- a/drivers/iio/accel/adxl367.c +++ b/drivers/iio/accel/adxl367.c @@ -179,6 +179,10 @@ struct adxl367_state { __be16 fifo_buf[ADXL367_FIFO_SIZE] __aligned(IIO_DMA_MINALIGN); __be16 sample_buf; + struct { + __be16 channels[4]; + aligned_s64 ts; + } scan; u8 act_threshold_buf[2]; u8 inact_time_buf[2]; u8 status_buf[3]; @@ -779,7 +783,7 @@ static bool adxl367_push_event(struct iio_dev *indio_dev, u8 status) } static bool adxl367_push_fifo_data(struct iio_dev *indio_dev, u8 status, - u16 fifo_entries) + u16 fifo_entries, s64 ts) { struct adxl367_state *st = iio_priv(indio_dev); int ret; @@ -796,8 +800,11 @@ static bool adxl367_push_fifo_data(struct iio_dev *indio_dev, u8 status, return true; } - for (i = 0; i < fifo_entries; i += st->fifo_set_size) - iio_push_to_buffers(indio_dev, &st->fifo_buf[i]); + for (i = 0; i < fifo_entries; i += st->fifo_set_size) { + memcpy(st->scan.channels, &st->fifo_buf[i], + st->fifo_set_size * sizeof(__be16)); + iio_push_to_buffers_with_timestamp(indio_dev, &st->scan, ts); + } return true; } @@ -809,14 +816,16 @@ static irqreturn_t adxl367_irq_handler(int irq, void *private) u16 fifo_entries; bool handled; u8 status; + s64 ts; int ret; ret = adxl367_get_status(st, &status, &fifo_entries); if (ret) return IRQ_NONE; + ts = iio_get_time_ns(indio_dev); handled = adxl367_push_event(indio_dev, status); - handled |= adxl367_push_fifo_data(indio_dev, status, fifo_entries); + handled |= adxl367_push_fifo_data(indio_dev, status, fifo_entries, ts); return handled ? IRQ_HANDLED : IRQ_NONE; } -- 2.54.0.windows.1