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([2a04:ee41:82:7577:ea8a:93ec:a066:eb25]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-385faec0c9dsm832609f8f.20.2024.12.02.11.23.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2024 11:23:44 -0800 (PST) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, u.kleine-koenig@pengutronix.de, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski Subject: [PATCH v5 1/3] dt-bindings: iio: bosch,bme680: Move from trivial-devices and add supplies Date: Mon, 2 Dec 2024 20:23:39 +0100 Message-ID: <20241202192341.33187-2-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241202192341.33187-1-vassilisamir@gmail.com> References: <20241202192341.33187-1-vassilisamir@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" Move dt-binding for BME680 out of trivial-devices.yaml and extend it by adding the missing supplies. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Vasileios Amoiridis --- .../bindings/iio/chemical/bosch,bme680.yaml | 62 +++++++++++++++++++ .../devicetree/bindings/trivial-devices.yaml | 2 - 2 files changed, 62 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/chemical/bosch,bm= e680.yaml diff --git a/Documentation/devicetree/bindings/iio/chemical/bosch,bme680.ya= ml b/Documentation/devicetree/bindings/iio/chemical/bosch,bme680.yaml new file mode 100644 index 000000000000..fe98ec44f081 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/chemical/bosch,bme680.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/chemical/bosch,bme680.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bosch BME680 Gas sensor + +maintainers: + - Vasileios Amoiridis + +description: > + BME680 is a gas sensor which combines relative humidity, barometric pres= sure, + ambient temperature and gas (VOC - Volatile Organic Compounds) measureme= nts. + + https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheet= s/bst-bme680-ds001.pdf + +properties: + compatible: + const: bosch,bme680 + + reg: + maxItems: 1 + + vdd-supply: true + vddio-supply: true + +required: + - compatible + - reg + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + co2-sensor@77 { + compatible =3D "bosch,bme680"; + reg =3D <0x77>; + vddio-supply =3D <&vddio>; + vdd-supply =3D <&vdd>; + }; + }; + - | + spi { + #address-cells =3D <1>; + #size-cells =3D <0>; + + co2-sensor@0 { + compatible =3D "bosch,bme680"; + reg =3D <0>; + spi-max-frequency =3D <500000>; + vddio-supply =3D <&vddio>; + vdd-supply =3D <&vdd>; + }; + }; diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Docum= entation/devicetree/bindings/trivial-devices.yaml index 9bf0fb17a05e..b651826e2d21 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -55,8 +55,6 @@ properties: - atmel,atsha204a # BPA-RS600: Power Supply - blutek,bpa-rs600 - # Bosch Sensortec pressure, temperature, humididty and VOC sen= sor - - bosch,bme680 # CM32181: Ambient Light Sensor - capella,cm32181 # CM3232: Ambient Light Sensor --=20 2.43.0 From nobody Wed Dec 4 18:53:33 2024 Received: from mail-wr1-f45.google.com (mail-wr1-f45.google.com [209.85.221.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C20BD1DE4DB; 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([2a04:ee41:82:7577:ea8a:93ec:a066:eb25]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-385faec0c9dsm832609f8f.20.2024.12.02.11.23.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2024 11:23:45 -0800 (PST) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, u.kleine-koenig@pengutronix.de, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 2/3] iio: chemical: bme680: add regulators Date: Mon, 2 Dec 2024 20:23:40 +0100 Message-ID: <20241202192341.33187-3-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241202192341.33187-1-vassilisamir@gmail.com> References: <20241202192341.33187-1-vassilisamir@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 support for the regulators described in the dt-binding. Reviewed-by: Andy Shevchenko Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 9783953e64e0..bcf84c0a1a59 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -15,6 +15,7 @@ #include #include #include +#include =20 #include #include @@ -111,6 +112,8 @@ enum bme680_scan { BME680_GAS, }; =20 +static const char *const bme680_supply_names[] =3D { "vdd", "vddio" }; + struct bme680_data { struct regmap *regmap; struct bme680_calib bme680; @@ -1114,6 +1117,14 @@ int bme680_core_probe(struct device *dev, struct reg= map *regmap, data->heater_dur =3D 150; /* milliseconds */ data->preheat_curr_mA =3D 0; =20 + ret =3D devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(bme680_supply_name= s), + bme680_supply_names); + if (ret) + return dev_err_probe(dev, ret, + "failed to get and enable supplies.\n"); 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([2a04:ee41:82:7577:ea8a:93ec:a066:eb25]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-385faec0c9dsm832609f8f.20.2024.12.02.11.23.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Dec 2024 11:23:46 -0800 (PST) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, u.kleine-koenig@pengutronix.de, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 3/3] iio: chemical: bme680: add power management Date: Mon, 2 Dec 2024 20:23:41 +0100 Message-ID: <20241202192341.33187-4-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241202192341.33187-1-vassilisamir@gmail.com> References: <20241202192341.33187-1-vassilisamir@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 runtime power management to the device. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680.h | 2 + drivers/iio/chemical/bme680_core.c | 114 +++++++++++++++++++++++++++-- drivers/iio/chemical/bme680_i2c.c | 1 + drivers/iio/chemical/bme680_spi.c | 1 + 4 files changed, 111 insertions(+), 7 deletions(-) diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h index 00ab89b3138b..7d86ed8b02e6 100644 --- a/drivers/iio/chemical/bme680.h +++ b/drivers/iio/chemical/bme680.h @@ -2,6 +2,7 @@ #ifndef BME680_H_ #define BME680_H_ =20 +#include #include =20 #define BME680_REG_CHIP_ID 0xD0 @@ -80,6 +81,7 @@ #define BME680_CALIB_RANGE_3_LEN 5 =20 extern const struct regmap_config bme680_regmap_config; +extern const struct dev_pm_ops bme680_dev_pm_ops; =20 int bme680_core_probe(struct device *dev, struct regmap *regmap, const char *name); diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index bcf84c0a1a59..f5f22a83ad5b 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include =20 @@ -820,9 +822,9 @@ static int bme680_read_gas(struct bme680_data *data, in= t *comp_gas_res) return 0; } =20 -static int bme680_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, int *val2, long mask) +static int __bme680_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) { struct bme680_data *data =3D iio_priv(indio_dev); int chan_val, ret; @@ -935,14 +937,33 @@ static int bme680_read_raw(struct iio_dev *indio_dev, } } =20 +static int bme680_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + int ret; + + ret =3D pm_runtime_resume_and_get(dev); + if (ret) + return ret; + + ret =3D __bme680_read_raw(indio_dev, chan, val, val2, mask); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + + return ret; +} + static bool bme680_is_valid_oversampling(int rate) { return (rate > 0 && rate <=3D 16 && is_power_of_2(rate)); } =20 -static int bme680_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, int val2, long mask) +static int __bme680_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) { struct bme680_data *data =3D iio_priv(indio_dev); =20 @@ -987,6 +1008,25 @@ static int bme680_write_raw(struct iio_dev *indio_dev, } } =20 +static int bme680_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + int ret; + + ret =3D pm_runtime_resume_and_get(dev); + if (ret) + return ret; + + ret =3D __bme680_write_raw(indio_dev, chan, val, val2, mask); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + + return ret; +} + static const char bme680_oversampling_ratio_show[] =3D "1 2 4 8 16"; =20 static IIO_CONST_ATTR(oversampling_ratio_available, @@ -1087,6 +1127,34 @@ static irqreturn_t bme680_trigger_handler(int irq, v= oid *p) return IRQ_HANDLED; } =20 +static int bme680_buffer_preenable(struct iio_dev *indio_dev) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + int ret; + + ret =3D pm_runtime_resume_and_get(dev); + if (ret) + return ret; + + return 0; +} + +static int bme680_buffer_postdisable(struct iio_dev *indio_dev) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + return 0; +} + +static const struct iio_buffer_setup_ops bme680_buffer_setup_ops =3D { + .preenable =3D bme680_buffer_preenable, + .postdisable =3D bme680_buffer_postdisable, +}; + int bme680_core_probe(struct device *dev, struct regmap *regmap, const char *name) { @@ -1160,15 +1228,47 @@ int bme680_core_probe(struct device *dev, struct re= gmap *regmap, ret =3D devm_iio_triggered_buffer_setup(dev, indio_dev, iio_pollfunc_store_time, bme680_trigger_handler, - NULL); + &bme680_buffer_setup_ops); if (ret) return dev_err_probe(dev, ret, "iio triggered buffer setup failed\n"); =20 + /* Enable runtime PM */ + pm_runtime_set_autosuspend_delay(dev, BME680_STARTUP_TIME_US); + pm_runtime_use_autosuspend(dev); + pm_runtime_set_active(dev); + ret =3D devm_pm_runtime_enable(dev); + if (ret) + return ret; + return devm_iio_device_register(dev, indio_dev); } EXPORT_SYMBOL_NS_GPL(bme680_core_probe, IIO_BME680); =20 +static int bme680_runtime_suspend(struct device *dev) +{ + struct iio_dev *indio_dev =3D dev_get_drvdata(dev); + struct bme680_data *data =3D iio_priv(indio_dev); + + return bme680_set_mode(data, BME680_MODE_SLEEP); +} + +static int bme680_runtime_resume(struct device *dev) +{ + struct iio_dev *indio_dev =3D dev_get_drvdata(dev); + struct bme680_data *data =3D iio_priv(indio_dev); + int ret; + + ret =3D bme680_chip_config(data); + if (ret) + return ret; + + return bme680_gas_config(data); +} + +EXPORT_RUNTIME_DEV_PM_OPS(bme680_dev_pm_ops, bme680_runtime_suspend, + bme680_runtime_resume, NULL); + MODULE_AUTHOR("Himanshu Jha "); MODULE_DESCRIPTION("Bosch BME680 Driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/chemical/bme680_i2c.c b/drivers/iio/chemical/bme68= 0_i2c.c index 7c4224d75955..9998d7fa3e98 100644 --- a/drivers/iio/chemical/bme680_i2c.c +++ b/drivers/iio/chemical/bme680_i2c.c @@ -51,6 +51,7 @@ static struct i2c_driver bme680_i2c_driver =3D { .driver =3D { .name =3D "bme680_i2c", .of_match_table =3D bme680_of_i2c_match, + .pm =3D pm_ptr(&bme680_dev_pm_ops), }, .probe =3D bme680_i2c_probe, .id_table =3D bme680_i2c_id, diff --git a/drivers/iio/chemical/bme680_spi.c b/drivers/iio/chemical/bme68= 0_spi.c index 7c54bd17d4b0..43d59544d903 100644 --- a/drivers/iio/chemical/bme680_spi.c +++ b/drivers/iio/chemical/bme680_spi.c @@ -154,6 +154,7 @@ static struct spi_driver bme680_spi_driver =3D { .driver =3D { .name =3D "bme680_spi", .of_match_table =3D bme680_of_spi_match, + .pm =3D pm_ptr(&bme680_dev_pm_ops), }, .probe =3D bme680_spi_probe, .id_table =3D bme680_spi_id, --=20 2.43.0