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From: Lothar Rubusch <l.rubusch@gmail.com>
To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org,
	robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, eraretuya@gmail.com,
	l.rubusch@gmail.com
Subject: [PATCH v3 2/6] iio: accel: adxl345: Make data_range obsolete
Date: Sat, 23 Mar 2024 12:20:26 +0000	[thread overview]
Message-ID: <20240323122030.21800-3-l.rubusch@gmail.com> (raw)
In-Reply-To: <20240323122030.21800-1-l.rubusch@gmail.com>

Replace write() data_format by regmap_update_bits(), because
bus specific pre-configuration may have happened before on
the same register. Changes then need to be masked.

Remove the data_range field from the struct adxl345_data,
because it is not used anymore.

Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
---
 drivers/iio/accel/adxl345_core.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index ae12836b5..33424edca 100644
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -42,13 +42,13 @@
 #define ADXL345_DATA_FORMAT_4G		1
 #define ADXL345_DATA_FORMAT_8G		2
 #define ADXL345_DATA_FORMAT_16G		3
+#define ADXL345_DATA_FORMAT_MSK		~((u8) BIT(6)) /* ignore spi-3wire */
 
 #define ADXL345_DEVID			0xE5
 
 struct adxl345_data {
 	const struct adxl345_chip_info *info;
 	struct regmap *regmap;
-	u8 data_range;
 };
 
 #define ADXL345_CHANNEL(index, axis) {					\
@@ -227,14 +227,13 @@ int adxl345_core_probe(struct device *dev, struct regmap *regmap,
 	data = iio_priv(indio_dev);
 	data->regmap = regmap;
 	/* Enable full-resolution mode */
-	data->data_range = ADXL345_DATA_FORMAT_FULL_RES;
 	data->info = device_get_match_data(dev);
 	if (!data->info)
 		return -ENODEV;
 
-	ret = regmap_write(data->regmap, ADXL345_REG_DATA_FORMAT,
-			   data->data_range);
-	if (ret < 0)
+	ret = regmap_update_bits(regmap, ADXL345_REG_DATA_FORMAT,
+				 ADXL345_DATA_FORMAT_MSK, ADXL345_DATA_FORMAT_FULL_RES);
+	if (ret)
 		return dev_err_probe(dev, ret, "Failed to set data range\n");
 
 	indio_dev->name = data->info->name;
-- 
2.25.1


  parent reply	other threads:[~2024-03-23 12:20 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-23 12:20 [PATCH v3 0/6] iio: accel: adxl345: Add spi-3wire feature Lothar Rubusch
2024-03-23 12:20 ` [PATCH v3 1/6] iio: accel: adxl345: Pass function pointer to core Lothar Rubusch
2024-03-23 12:20 ` Lothar Rubusch [this message]
2024-03-23 12:20 ` [PATCH v3 3/6] iio: accel: adxl345: Add spi-3wire option Lothar Rubusch
2024-03-24 13:32   ` Jonathan Cameron
2024-03-24 18:59     ` Lothar Rubusch
2024-03-25 14:46       ` Jonathan Cameron
2024-03-23 12:20 ` [PATCH v3 4/6] iio: accel: adxl345: Remove single info instances Lothar Rubusch
2024-03-24 13:35   ` Jonathan Cameron
2024-03-24 19:06     ` Lothar Rubusch
2024-03-25 14:48       ` Jonathan Cameron
2024-03-23 12:20 ` [PATCH v3 5/6] iio: accel: adxl345: Group bus configuration Lothar Rubusch
2024-03-24 13:37   ` Jonathan Cameron
2024-03-23 12:20 ` [PATCH v3 6/6] dt-bindings: iio: accel: adxl345: Add spi-3wire Lothar Rubusch
2024-03-23 14:28   ` Krzysztof Kozlowski
2024-03-24 13:39 ` [PATCH v3 0/6] iio: accel: adxl345: Add spi-3wire feature Jonathan Cameron
2024-03-24 19:20   ` Lothar Rubusch
2024-03-25 14:51     ` Jonathan Cameron

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