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[81.182.220.224]) by smtp.gmail.com with ESMTPSA id h11-20020a05600c314b00b00418f72d9027sm15050957wmo.18.2024.05.04.22.37.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 May 2024 22:37:21 -0700 (PDT) From: =?utf-8?b?QmFybmFiw6FzIEN6w6ltw6Fu?= Date: Sun, 05 May 2024 07:36:54 +0200 Subject: [PATCH v3 1/2] iio: imu: bmi160: add support for bmi120 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240505-bmi120-v3-1-15cee3d0b2ef@gmail.com> References: <20240505-bmi120-v3-0-15cee3d0b2ef@gmail.com> In-Reply-To: <20240505-bmi120-v3-0-15cee3d0b2ef@gmail.com> To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?b?QmFybmFiw6FzIEN6w6ltw6Fu?= , Danila Tikhonov X-Mailer: b4 0.13.0 From: Danila Tikhonov Add support for bmi120 low power variant of bmi160. Signed-off-by: Danila Tikhonov Co-developed-by: Barnabás Czémán Signed-off-by: Barnabás Czémán --- drivers/iio/imu/bmi160/bmi160_core.c | 26 ++++++++++++++++++++------ drivers/iio/imu/bmi160/bmi160_i2c.c | 3 +++ drivers/iio/imu/bmi160/bmi160_spi.c | 3 +++ 3 files changed, 26 insertions(+), 6 deletions(-) diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c index a77f1a8348ff..90aa04d94da5 100644 --- a/drivers/iio/imu/bmi160/bmi160_core.c +++ b/drivers/iio/imu/bmi160/bmi160_core.c @@ -26,6 +26,7 @@ #include "bmi160.h" #define BMI160_REG_CHIP_ID 0x00 +#define BMI120_CHIP_ID_VAL 0xD3 #define BMI160_CHIP_ID_VAL 0xD1 #define BMI160_REG_PMU_STATUS 0x03 @@ -112,6 +113,11 @@ .ext_info = bmi160_ext_info, \ } +static const u8 bmi_chip_ids[] = { + BMI120_CHIP_ID_VAL, + BMI160_CHIP_ID_VAL, +}; + /* scan indexes follow DATA register order */ enum bmi160_scan_axis { BMI160_SCAN_EXT_MAGN_X = 0, @@ -704,6 +710,16 @@ static int bmi160_setup_irq(struct iio_dev *indio_dev, int irq, return bmi160_probe_trigger(indio_dev, irq, irq_type); } +static int bmi160_check_chip_id(const u8 chip_id) +{ + for (int i = 0; i < ARRAY_SIZE(bmi_chip_ids); i++) { + if (chip_id == bmi_chip_ids[i]) + return 0; + } + + return -ENODEV; +} + static int bmi160_chip_init(struct bmi160_data *data, bool use_spi) { int ret; @@ -737,12 +753,10 @@ static int bmi160_chip_init(struct bmi160_data *data, bool use_spi) dev_err(dev, "Error reading chip id\n"); goto disable_regulator; } - if (val != BMI160_CHIP_ID_VAL) { - dev_err(dev, "Wrong chip id, got %x expected %x\n", - val, BMI160_CHIP_ID_VAL); - ret = -ENODEV; - goto disable_regulator; - } + + ret = bmi160_check_chip_id(val); + if (ret) + dev_warn(dev, "Chip id not found: %x\n", val); ret = bmi160_set_mode(data, BMI160_ACCEL, true); if (ret) diff --git a/drivers/iio/imu/bmi160/bmi160_i2c.c b/drivers/iio/imu/bmi160/bmi160_i2c.c index a081305254db..d0ec5301ad9a 100644 --- a/drivers/iio/imu/bmi160/bmi160_i2c.c +++ b/drivers/iio/imu/bmi160/bmi160_i2c.c @@ -37,6 +37,7 @@ static int bmi160_i2c_probe(struct i2c_client *client) } static const struct i2c_device_id bmi160_i2c_id[] = { + {"bmi120", 0}, {"bmi160", 0}, {} }; @@ -52,12 +53,14 @@ static const struct acpi_device_id bmi160_acpi_match[] = { * the affected devices are from 2021/2022. */ {"10EC5280", 0}, + {"BMI0120", 0}, {"BMI0160", 0}, { }, }; MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); static const struct of_device_id bmi160_of_match[] = { + { .compatible = "bosch,bmi120" }, { .compatible = "bosch,bmi160" }, { }, }; diff --git a/drivers/iio/imu/bmi160/bmi160_spi.c b/drivers/iio/imu/bmi160/bmi160_spi.c index 8b573ea99af2..9f40500132f7 100644 --- a/drivers/iio/imu/bmi160/bmi160_spi.c +++ b/drivers/iio/imu/bmi160/bmi160_spi.c @@ -34,18 +34,21 @@ static int bmi160_spi_probe(struct spi_device *spi) } static const struct spi_device_id bmi160_spi_id[] = { + {"bmi120", 0}, {"bmi160", 0}, {} }; MODULE_DEVICE_TABLE(spi, bmi160_spi_id); static const struct acpi_device_id bmi160_acpi_match[] = { + {"BMI0120", 0}, {"BMI0160", 0}, { }, }; MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); static const struct of_device_id bmi160_of_match[] = { + { .compatible = "bosch,bmi120" }, { .compatible = "bosch,bmi160" }, { }, }; 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[81.182.220.224]) by smtp.gmail.com with ESMTPSA id h11-20020a05600c314b00b00418f72d9027sm15050957wmo.18.2024.05.04.22.37.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 May 2024 22:37:22 -0700 (PDT) From: =?utf-8?b?QmFybmFiw6FzIEN6w6ltw6Fu?= Date: Sun, 05 May 2024 07:36:55 +0200 Subject: [PATCH v3 2/2] dt-bindings: iio: imu: bmi160: add bmi120 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240505-bmi120-v3-2-15cee3d0b2ef@gmail.com> References: <20240505-bmi120-v3-0-15cee3d0b2ef@gmail.com> In-Reply-To: <20240505-bmi120-v3-0-15cee3d0b2ef@gmail.com> To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?b?QmFybmFiw6FzIEN6w6ltw6Fu?= , Danila Tikhonov X-Mailer: b4 0.13.0 From: Danila Tikhonov Document bosch,bmi120 compatible. Signed-off-by: Danila Tikhonov Signed-off-by: Barnbás Czémán Acked-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml b/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml index 47cfba939ca6..3b0a2d8b2e91 100644 --- a/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml +++ b/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml @@ -16,7 +16,11 @@ description: | properties: compatible: - const: bosch,bmi160 + oneOf: + - const: bosch,bmi160 + - items: + - const: bosch,bmi120 + - const: bosch,bmi160 reg: maxItems: 1