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Message-Id: <20230921144400.62380-11-dlechner@baylibre.com>
Date: Thu, 21 Sep 2023 09:43:51 -0500
From: David Lechner <dlechner@...libre.com>
To: linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
linux-staging@...ts.linux.dev
Cc: linux-kernel@...r.kernel.org, Jonathan Cameron <jic23@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Michael Hennerich <Michael.Hennerich@...log.com>,
Nuno Sá <nuno.sa@...log.com>,
Axel Haslam <ahaslam@...libre.com>,
Philip Molloy <pmolloy@...libre.com>,
David Lechner <dlechner@...libre.com>
Subject: [PATCH v2 10/19] staging: iio: resolver: ad2s1210: add debugfs reg access
This add an implementation of debugfs_reg_access for the AD2S1210
driver.
Signed-off-by: David Lechner <dlechner@...libre.com>
---
drivers/staging/iio/resolver/ad2s1210.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index 3c81ee61b897..b99928394e3f 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -606,9 +606,29 @@ static int ad2s1210_initial(struct ad2s1210_state *st)
return ret;
}
+static int ad2s1210_debugfs_reg_access(struct iio_dev *indio_dev,
+ unsigned int reg, unsigned int writeval,
+ unsigned int *readval)
+{
+ struct ad2s1210_state *st = iio_priv(indio_dev);
+ int ret;
+
+ mutex_lock(&st->lock);
+
+ if (readval)
+ ret = regmap_read(st->regmap, reg, readval);
+ else
+ ret = regmap_write(st->regmap, reg, writeval);
+
+ mutex_unlock(&st->lock);
+
+ return ret;
+}
+
static const struct iio_info ad2s1210_info = {
.read_raw = ad2s1210_read_raw,
.attrs = &ad2s1210_attribute_group,
+ .debugfs_reg_access = &ad2s1210_debugfs_reg_access,
};
static int ad2s1210_setup_clocks(struct ad2s1210_state *st)
--
2.34.1
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