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[84.72.156.211]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a35ca4d1dfsm9287446f8f.18.2025.05.18.04.13.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 May 2025 04:13:39 -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 Cc: linux-iio@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Lothar Rubusch Subject: [PATCH v1 05/12] iio: accel: adxl313: add function to enable measurement Date: Sun, 18 May 2025 11:13:14 +0000 Message-Id: <20250518111321.75226-6-l.rubusch@gmail.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250518111321.75226-1-l.rubusch@gmail.com> References: <20250518111321.75226-1-l.rubusch@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 -#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 #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_core.c index 6e0c5704e333..244fb2ec0b79 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, unsigned int reg) } EXPORT_SYMBOL_NS_GPL(adxl313_is_volatile_reg, "IIO_ADXL313"); +static int adxl313_set_measure_en(struct adxl313_data *data, bool en) +{ + unsigned int val = 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 adxl313_data *data, } /* 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); } /** -- 2.39.5