From: Nishant Malpani <nish.malpani25@gmail.com>
To: jic23@kernel.org, robh+dt@kernel.org
Cc: dragos.bogdan@analog.com, darius.berghe@analog.com,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
devicetree@vger.kernel.org, andy.shevchenko@gmail.com,
Nishant Malpani <nish.malpani25@gmail.com>
Subject: [PATCH v2 3/3] iio: gyro: adxrs290: Add debugfs register access support
Date: Thu, 3 Sep 2020 18:39:50 +0530 [thread overview]
Message-ID: <20200903130950.6274-4-nish.malpani25@gmail.com> (raw)
In-Reply-To: <20200903130950.6274-1-nish.malpani25@gmail.com>
Extend support to read/write byte data from/to the device using
debugfs iio interface.
Signed-off-by: Nishant Malpani <nish.malpani25@gmail.com>
---
No changes in v2
---
drivers/iio/gyro/adxrs290.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c
index 4099b8917d3e..132fd16789f0 100644
--- a/drivers/iio/gyro/adxrs290.c
+++ b/drivers/iio/gyro/adxrs290.c
@@ -434,6 +434,24 @@ static int adxrs290_read_avail(struct iio_dev *indio_dev,
}
}
+static int adxrs290_reg_access(struct iio_dev *indio_dev, unsigned int reg,
+ unsigned int writeval, unsigned int *readval)
+{
+ struct adxrs290_state *st = iio_priv(indio_dev);
+ int ret;
+
+ if (!readval)
+ return adxrs290_spi_write_reg(st->spi, reg, writeval);
+
+ ret = spi_w8r8(st->spi, ADXRS290_READ_REG(reg));
+ if (ret < 0)
+ return ret;
+
+ *readval = ret;
+
+ return 0;
+}
+
static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state)
{
struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
@@ -546,6 +564,7 @@ static const struct iio_info adxrs290_info = {
.read_raw = &adxrs290_read_raw,
.write_raw = &adxrs290_write_raw,
.read_avail = &adxrs290_read_avail,
+ .debugfs_reg_access = &adxrs290_reg_access,
};
static int adxrs290_probe_trigger(struct iio_dev *indio_dev)
--
2.20.1
next prev parent reply other threads:[~2020-09-03 15:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 13:09 [PATCH v2 0/3] iio: gyro: adxrs290: Add triggered buffer & debugfs support Nishant Malpani
2020-09-03 13:09 ` [PATCH v2 1/3] iio: gyro: adxrs290: Add triggered buffer support Nishant Malpani
2020-09-03 13:20 ` Andy Shevchenko
2020-09-03 13:46 ` Nishant Malpani
2020-09-06 14:59 ` Jonathan Cameron
2020-09-03 13:09 ` [PATCH v2 2/3] dt-bindings: iio: gyro: adxrs290: Add interrupts support Nishant Malpani
2020-09-06 15:01 ` Jonathan Cameron
2020-09-03 13:09 ` Nishant Malpani [this message]
2020-09-03 13:25 ` [PATCH v2 3/3] iio: gyro: adxrs290: Add debugfs register access support Andy Shevchenko
2020-09-03 13:56 ` Nishant Malpani
2020-09-03 13:59 ` Andy Shevchenko
2020-09-06 15:03 ` Jonathan Cameron
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