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[84.72.156.211]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a35ca4d105sm18101588f8f.11.2025.05.20.15.50.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 May 2025 15:50:41 -0700 (PDT) From: Lothar Rubusch To: jic23@kernel.org, dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org, corbet@lwn.net, lucas.p.stankus@gmail.com, lars@metafoo.de, Michael.Hennerich@analog.com, l.rubusch@gmail.com Cc: linux-iio@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 05/12] iio: accel: adxl313: add function to enable measurement Date: Tue, 20 May 2025 22:50:00 +0000 Message-Id: <20250520225007.10990-6-l.rubusch@gmail.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250520225007.10990-1-l.rubusch@gmail.com> References: <20250520225007.10990-1-l.rubusch@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: quoted-printable Content-Type: text/plain; charset="utf-8" Add a function to enable measurement. The data-sheet recomments turning of measurement while modifying certain config registers. This is a preparatory step. Signed-off-by: Lothar Rubusch --- drivers/iio/accel/adxl313.h | 3 ++- drivers/iio/accel/adxl313_core.c | 12 +++++++++--- 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/iio/accel/adxl313.h b/drivers/iio/accel/adxl313.h index fc937bdf83b6..ba5b5d53a0ea 100644 --- a/drivers/iio/accel/adxl313.h +++ b/drivers/iio/accel/adxl313.h @@ -36,8 +36,9 @@ #define ADXL313_RATE_MSK GENMASK(3, 0) #define ADXL313_RATE_BASE 6 =20 -#define ADXL313_POWER_CTL_MSK GENMASK(3, 2) +#define ADXL313_POWER_CTL_MSK BIT(3) #define ADXL313_MEASUREMENT_MODE BIT(3) +#define ADXL313_MEASUREMENT_STANDBY 0x00 =20 #define ADXL313_RANGE_MSK GENMASK(1, 0) #define ADXL313_RANGE_MAX 3 diff --git a/drivers/iio/accel/adxl313_core.c b/drivers/iio/accel/adxl313_c= ore.c index 0c893c286017..6c9d99650fc2 100644 --- a/drivers/iio/accel/adxl313_core.c +++ b/drivers/iio/accel/adxl313_core.c @@ -63,6 +63,14 @@ bool adxl313_is_volatile_reg(struct device *dev, unsigne= d int reg) } EXPORT_SYMBOL_NS_GPL(adxl313_is_volatile_reg, "IIO_ADXL313"); =20 +static int adxl313_set_measure_en(struct adxl313_data *data, bool en) +{ + unsigned int val =3D en ? ADXL313_MEASUREMENT_MODE : ADXL313_MEASUREMENT_= STANDBY; + + return regmap_update_bits(data->regmap, ADXL313_REG_POWER_CTL, + ADXL313_POWER_CTL_MSK, val); +} + static int adxl312_check_id(struct device *dev, struct adxl313_data *data) { @@ -410,9 +418,7 @@ static int adxl313_setup(struct device *dev, struct adx= l313_data *data, } =20 /* Enables measurement mode */ - return regmap_update_bits(data->regmap, ADXL313_REG_POWER_CTL, - ADXL313_POWER_CTL_MSK, - ADXL313_MEASUREMENT_MODE); + return adxl313_set_measure_en(data, true); } =20 /** --=20 2.39.5