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From: Jonathan Cameron <jic23@kernel.org>
To: linux-iio@vger.kernel.org
Cc: Lars-Peter Clausen <lars@metafoo.de>,
	Michael Hennerich <Michael.Hennerich@analog.com>,
	song.bao.hua@hisilicon.com, robh+dt@kernel.org,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH 19/24] staging:iio:cdc:ad7150: Really basic regulator support.
Date: Sun,  7 Feb 2021 15:46:18 +0000	[thread overview]
Message-ID: <20210207154623.433442-20-jic23@kernel.org> (raw)
In-Reply-To: <20210207154623.433442-1-jic23@kernel.org>

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Given DT docs will include regulators, lets just turn them on and
off with driver probe() and remove().

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/staging/iio/cdc/ad7150.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index a2aae370c231..0bc8c7a99883 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -12,6 +12,7 @@
 #include <linux/i2c.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 
 #include <linux/iio/iio.h>
@@ -538,11 +539,19 @@ static const struct iio_info ad7150_info_no_irq = {
 	.read_raw = &ad7150_read_raw,
 };
 
+static void ad7150_reg_disable(void *data)
+{
+	struct regulator *reg = data;
+
+	regulator_disable(reg);
+}
+
 static int ad7150_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct ad7150_chip_info *chip;
 	struct iio_dev *indio_dev;
+	struct regulator *reg;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
@@ -557,6 +566,18 @@ static int ad7150_probe(struct i2c_client *client,
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
+	reg = devm_regulator_get(&client->dev, "vdd");
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	ret = regulator_enable(reg);
+	if (ret)
+		return ret;
+
+	ret = devm_add_action_or_reset(&client->dev, ad7150_reg_disable, reg);
+	if (ret)
+		return ret;
+
 	chip->interrupts[0] = fwnode_irq_get(dev_fwnode(&client->dev), 0);
 	if (chip->interrupts[0] < 0)
 		return chip->interrupts[0];
-- 
2.30.0


  parent reply	other threads:[~2021-02-07 15:50 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-07 15:45 [PATCH 00/24] staging:iio:cdc:ad7150: cleanup / fixup / graduate Jonathan Cameron
2021-02-07 15:46 ` [PATCH 01/24] staging:iio:cdc:ad7150: use swapped reads for i2c rather than open coding Jonathan Cameron
2021-02-07 15:46 ` [PATCH 02/24] staging:iio:cdc:ad7150: Remove magnitude adaptive events Jonathan Cameron
2021-02-07 15:46 ` [PATCH 03/24] staging:iio:cdc:ad7150: Refactor event parameter update Jonathan Cameron
2021-02-07 15:46 ` [PATCH 04/24] staging:iio:cdc:ad7150: Timeout register covers both directions so both need updating Jonathan Cameron
2021-02-07 15:46 ` [PATCH 05/24] staging:iio:cdc:ad7150: Drop platform data support Jonathan Cameron
2021-02-08  8:01   ` Song Bao Hua (Barry Song)
2021-02-08 11:12     ` Jonathan Cameron
2021-02-07 15:46 ` [PATCH 06/24] staging:iio:cdc:ad7150: Handle variation in chan_spec across device and irq present or not Jonathan Cameron
2021-02-07 15:46 ` [PATCH 07/24] staging:iio:cdc:ad7150: Simplify event handling by only using rising direction Jonathan Cameron
2021-02-07 15:46 ` [PATCH 08/24] staging:iio:cdc:ad7150: Drop noisy print in probe Jonathan Cameron
2021-02-08  8:02   ` Song Bao Hua (Barry Song)
2021-02-07 15:46 ` [PATCH 09/24] staging:iio:cdc:ad7150: Add sampling_frequency support Jonathan Cameron
2021-02-07 15:46 ` [PATCH 10/24] iio:event: Add timeout event info type Jonathan Cameron
2021-02-07 15:46 ` [PATCH 11/24] staging:iio:cdc:ad7150: Change timeout units to seconds and use core support Jonathan Cameron
2021-02-07 15:46 ` [PATCH 12/24] staging:iio:cdc:ad7150: Rework interrupt handling Jonathan Cameron
2021-02-07 15:46 ` [PATCH 13/24] staging:iio:cdc:ad7150: More consistent register and field naming Jonathan Cameron
2021-03-14 17:43   ` Jonathan Cameron
2021-03-16 10:16     ` Alexandru Ardelean
2021-02-07 15:46 ` [PATCH 14/24] staging:iio:cdc:ad7150: Reorganize headers Jonathan Cameron
2021-02-08  7:54   ` Song Bao Hua (Barry Song)
2021-02-07 15:46 ` [PATCH 15/24] staging:iio:cdc:ad7150: Tidy up local variable positioning Jonathan Cameron
2021-02-08  7:54   ` Song Bao Hua (Barry Song)
2021-03-14 17:46     ` Jonathan Cameron
2021-02-07 15:46 ` [PATCH 16/24] staging:iio:cdc:ad7150: Drop unnecessary block comments Jonathan Cameron
2021-02-08  7:52   ` Song Bao Hua (Barry Song)
2021-02-07 15:46 ` [PATCH 17/24] staging:iio:cdc:ad7150: Shift the _raw readings by 4 bits Jonathan Cameron
2021-02-07 15:46 ` [PATCH 18/24] staging:iio:cdc:ad7150: Add scale and offset to info_mask_shared_by_type Jonathan Cameron
2021-02-07 15:46 ` Jonathan Cameron [this message]
2021-02-07 15:46 ` [PATCH 20/24] staging:iio:cdc:ad7150: Add of_match_table Jonathan Cameron
2021-02-08  7:11   ` Alexandru Ardelean
2021-02-11 15:51     ` Jonathan Cameron
2021-02-08  7:50   ` Song Bao Hua (Barry Song)
2021-02-08  8:01     ` Alexandru Ardelean
2021-02-07 15:46 ` [PATCH 21/24] dt-bindings:iio:cdc:adi,ad7150 binding doc Jonathan Cameron
2021-02-07 16:00   ` Lars-Peter Clausen
2021-02-07 16:18     ` Jonathan Cameron
2021-02-08  8:12     ` Song Bao Hua (Barry Song)
2021-02-08 11:20       ` Jonathan Cameron
2021-02-21 15:59   ` Jonathan Cameron
2021-02-07 15:46 ` [PATCH 22/24] iio:Documentation:ABI Add missing elements as used by the adi,ad7150 Jonathan Cameron
2021-02-07 15:46 ` [PATCH 23/24] staging:iio:cdc:ad7150: Add copyright notice given substantial changes Jonathan Cameron
2021-02-07 15:46 ` [PATCH 24/24] iio:cdc:ad7150: Move driver out of staging Jonathan Cameron
2021-02-07 16:21   ` Jonathan Cameron
2021-02-07 16:12 ` [PATCH 00/24] staging:iio:cdc:ad7150: cleanup / fixup / graduate Jonathan Cameron
2021-02-08  7:20   ` Alexandru Ardelean

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