On 18/07/2024 14:24, Jianping.Shen@xxxxxxxxxxxx wrote: > From: "Shen Jianping (ME-SE/EAD2)" <she2rt@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> > > Add Bosch SMI240 IMU IIO Driver to iio-for-6.10b What is "iio-for-6.10b"? How is it relevant to git history? This is supposed to say something about the driver and hardware. > > Signed-off-by: Shen Jianping (ME-SE/EAD2) <she2rt@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> > --- > .../bindings/iio/imu/bosch,smi240.yaml | 45 + > drivers/iio/imu/Kconfig | 2 + > drivers/iio/imu/Makefile | 1 + > drivers/iio/imu/smi240/Kconfig | 30 + > drivers/iio/imu/smi240/Makefile | 8 + > drivers/iio/imu/smi240/smi240.h | 31 + > drivers/iio/imu/smi240/smi240_core.c | 814 ++++++++++++++++++ > drivers/iio/imu/smi240/smi240_spi.c | 153 ++++ > 8 files changed, 1084 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml > create mode 100644 drivers/iio/imu/smi240/Kconfig > create mode 100644 drivers/iio/imu/smi240/Makefile > create mode 100644 drivers/iio/imu/smi240/smi240.h > create mode 100644 drivers/iio/imu/smi240/smi240_core.c > create mode 100644 drivers/iio/imu/smi240/smi240_spi.c > > diff --git a/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml b/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml > new file mode 100644 > index 00000000000..972819cacff > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml > @@ -0,0 +1,45 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/imu/bosch,smi240.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: BOSCH SMI240 Also: BOSCH or Bosch? > + > +maintainers: > + - unknown > + > +description: | > + Inertial Measurement Unit with Accelerometer, Gyroscope > + https://www.bosch-semiconductors.com/mems-sensors/highly-automated-driving/smi240/ > + > +properties: > + compatible: > + const: BOSCH,SMI240 > + > + reg: > + maxItems: 1 > + > +required: > + - compatible > + - spi-max-frequency > + - reg > + > +allOf: > + - $ref: /schemas/spi/spi-peripheral-props.yaml# > + > +unevaluatedProperties: false > + > +examples: > + - | > + // Example > + spi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + smi240@0 { > + compatible = "BOSCH,SMI240"; > + spi-max-frequency = <10000000>; > + reg = <0>; > + }; > + }; > diff --git a/drivers/iio/imu/Kconfig b/drivers/iio/imu/Kconfig > index 52a155ff325..2c348ad686a 100644 > --- a/drivers/iio/imu/Kconfig > +++ b/drivers/iio/imu/Kconfig > @@ -96,6 +96,8 @@ config KMX61 > > source "drivers/iio/imu/inv_icm42600/Kconfig" > source "drivers/iio/imu/inv_mpu6050/Kconfig" > +source "/home/she2rt/dev/smi240-linux-driver-iio/drivers/iio/imu/smi240/Kconfig" Yeah... this won't work, obviously. > +source "drivers/iio/imu/smi240/Kconfig" > source "drivers/iio/imu/st_lsm6dsx/Kconfig" > source "drivers/iio/imu/st_lsm9ds0/Kconfig" > > diff --git a/drivers/iio/imu/Makefile b/drivers/iio/imu/Makefile > index 7e2d7d5c3b7..b6f162ae4ed 100644 > --- a/drivers/iio/imu/Makefile > +++ b/drivers/iio/imu/Makefile > @@ -27,5 +27,6 @@ obj-y += inv_mpu6050/ > > obj-$(CONFIG_KMX61) += kmx61.o > > +obj-y += smi240/ > obj-y += st_lsm6dsx/ > obj-y += st_lsm9ds0/ > diff --git a/drivers/iio/imu/smi240/Kconfig b/drivers/iio/imu/smi240/Kconfig > new file mode 100644 > index 00000000000..7114c941cc3 > --- /dev/null > +++ b/drivers/iio/imu/smi240/Kconfig > @@ -0,0 +1,30 @@ Missing SPDX > +config SMI240 > + tristate "Bosch Sensor SMI240 Inertial Measurement Unit" > + depends on SPI_MASTER > + select IIO_BUFFER > + select IIO_TRIGGERED_BUFFER > + help > + Build driver > + for Bosch > + SMI240 6-axis IMU > + sensor. Ooh my... what's this style? Read coding style for Kconfig. > + > +config SMI240_MAX_BUFFER_LEN Drop, dead code. > + depends on SMI240 > + int "configue read buffer size" > + default "1024" > + help > + 1024 bytes are big > + enough for most cases. > + Do not change this value > + if not sure. > + > +config SMI240_UNIT_TEST Drop, dead code. > + tristate "Unit Test for SMI240" > + depends on KUNIT=y > + help > + Build Unit Test > + for Bosch > + SMI240 6-axis > + IMU sensor. > + > diff --git a/drivers/iio/imu/smi240/Makefile b/drivers/iio/imu/smi240/Makefile > new file mode 100644 > index 00000000000..394eaecf5f3 > --- /dev/null > +++ b/drivers/iio/imu/smi240/Makefile > @@ -0,0 +1,8 @@ > +# > +# Makefile for Bosch SMI240 Drop. It cannot be anything else. Do not say that "x" is a "x". You miss SPDX on the other hand. > +# > + > +obj-$(CONFIG_SMI240) += smi240.o > +smi240-objs := smi240_core.o Best regards, Krzysztof
