dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml

Commit Message

Shen Jianping (ME-SE/EAD2) July 24, 2024, 12:51 p.m. UTC

From: "Shen Jianping (ME-SE/EAD2)" <[e-mail]>

dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml
Signed-off-by: Shen Jianping (ME-SE/EAD2) <[e-mail]>
---
 .../bindings/iio/imu/bosch,smi240.yaml        | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml

Comments

Krzysztof Kozlowski July 24, 2024, 1:16 p.m. UTC | #1

On 24/07/2024 14:51, [e-mail] wrote:
> From: "Shen Jianping (ME-SE/EAD2)" <[e-mail]>
> 
> dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml

Something got corrupted here.

Anyway, please send bindings with driver in the same patchset.

Limited review follows:

> Signed-off-by: Shen Jianping (ME-SE/EAD2) <[e-mail]>
> ---

Missing changelog. That's v2, not v1? Provide changelog under --- and
version your patches correctly. b4 does it for you...


>  .../bindings/iio/imu/bosch,smi240.yaml        | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
> 
> 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..5e89d85d867
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
> @@ -0,0 +1,50 @@
> +# 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 IMU
> +
> +maintainers:
> +  - Jianping Shen <[e-mail]>
> +
> +description: |

Do not need '|' unless you need to preserve formatting.

> +  The SMI240 is a combined three axis angular rate and three axis acceleration sensor module
> +  with a measurement range of +/-300°/s and up to 16g. SMI240 does not support interrupt. 
> +  https://www.bosch-semiconductors.com/mems-sensors/highly-automated-driving/smi240/

This does not look like wrapped according to Linux Coding Style. See
Coding Style, so 80.

> +
> +properties:
> +  compatible:
> +    const: bosch,smi240
> +
> +  reg:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: provide VDD power to the sensor.
> +
> +  vddio-supply:
> +    description: provide VDD IO power to the sensor.
> +
> +required:
> +  - compatible
> +  - reg
> +
> +allOf:
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        spi@0 {

That's not a SPI controller. Your description suggests "imu".

Best regards,
Krzysztof

Shen Jianping (ME-SE/EAD2) July 24, 2024, 2:19 p.m. UTC | #2

Anyway, please send bindings with driver in the same patchset.

-> It's fine for us. Nevertheless according to the Devicetree (DT) binding submitting rules 1.1

" The Documentation/ and include/dt-bindings/ portion of the patch should be a separate patch." See -> https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters

Shall we still put the binding and driver in the same patch ?

Mit freundlichen Grüßen / Best regards

Jianping Shen

Mobility Electronics - Sensors, Engineering Advanced Development - MEMS Solutions Software (ME-SE/EAD2)
Robert Bosch GmbH | Postfach 13 42 | 72703 Reutlingen | GERMANY | www.bosch.com
Tel. [phone] | Telefax [phone] | [e-mail]

Sitz: Stuttgart, Registergericht: Amtsgericht Stuttgart, HRB 14000;
Aufsichtsratsvorsitzender: Prof. Dr. Stefan Asenkerschbaumer; 
Geschäftsführung: Dr. Stefan Hartung, Dr. Christian Fischer, Dr. Markus Forschner, 
Stefan Grosch, Dr. Markus Heyn, Dr. Frank Meyer, Dr. Tanja Rückert

-----Original Message-----
From: Krzysztof Kozlowski <[e-mail]> 
Sent: Wednesday, July 24, 2024 3:17 PM
To: Shen Jianping (ME-SE/EAD2) <[e-mail]>; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; Lorenz Christian (ME-SE/EAD2) <[e-mail]>; Frauendorf Ulrike (ME/PJ-SW3) <[e-mail]>; Dolde Kai (ME-SE/PAE-A3) <[e-mail]>
Subject: Re: [PATCH] dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml

On 24/07/2024 14:51, [e-mail] wrote:
> From: "Shen Jianping (ME-SE/EAD2)" 
> <[e-mail]>
> 
> dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml

Something got corrupted here.

Anyway, please send bindings with driver in the same patchset.

Limited review follows:

> Signed-off-by: Shen Jianping (ME-SE/EAD2) 
> <[e-mail]>
> ---

Missing changelog. That's v2, not v1? Provide changelog under --- and version your patches correctly. b4 does it for you...


>  .../bindings/iio/imu/bosch,smi240.yaml        | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
> 
> 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..5e89d85d867
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2
> +---
> +$id: 
> +https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> +cetree.org%2Fschemas%2Fiio%2Fimu%2Fbosch%2Csmi240.yaml%23&data=05%7C0
> +2%7CJianping.Shen%40de.bosch.com%7Ce4bd3cadbf5f4b17bf7308dcabe2e9b6%7
> +C0ae51e1907c84e4bbb6d648ee58410f4%7C0%7C0%7C638574238283264004%7CUnkn
> +own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWw
> +iLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=gbcSKWPDSDT0qTWo5L%2FUYxlQDunqNl2l
> +L7JAxwHhNJY%3D&reserved=0
> +$schema: 
> +https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C02%7CJianping.Shen
> +%40de.bosch.com%7Ce4bd3cadbf5f4b17bf7308dcabe2e9b6%7C0ae51e1907c84e4b
> +bb6d648ee58410f4%7C0%7C0%7C638574238283281959%7CUnknown%7CTWFpbGZsb3d
> +8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7
> +C0%7C%7C%7C&sdata=kW25MDdZz9c3ePA%2BUrGXSWsBWlDxb6UAKjOeLSnFEXU%3D&re
> +served=0
> +
> +title: Bosch SMI240 IMU
> +
> +maintainers:
> +  - Jianping Shen <[e-mail]>
> +
> +description: |

Do not need '|' unless you need to preserve formatting.

> +  The SMI240 is a combined three axis angular rate and three axis 
> + acceleration sensor module  with a measurement range of +/-300°/s and up to 16g. SMI240 does not support interrupt.
> +  
> + https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> + w.bosch-semiconductors.com%2Fmems-sensors%2Fhighly-automated-driving
> + %2Fsmi240%2F&data=05%7C02%7CJianping.Shen%40de.bosch.com%7Ce4bd3cadb
> + f5f4b17bf7308dcabe2e9b6%7C0ae51e1907c84e4bbb6d648ee58410f4%7C0%7C0%7
> + C638574238283298041%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQ
> + IjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=d2%2Bk
> + j8GzUms9o0Nbdu9QpTzZwujQnjJMp0GFp%2B5MrB0%3D&reserved=0

This does not look like wrapped according to Linux Coding Style. See Coding Style, so 80.

> +
> +properties:
> +  compatible:
> +    const: bosch,smi240
> +
> +  reg:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: provide VDD power to the sensor.
> +
> +  vddio-supply:
> +    description: provide VDD IO power to the sensor.
> +
> +required:
> +  - compatible
> +  - reg
> +
> +allOf:
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        spi@0 {

That's not a SPI controller. Your description suggests "imu".

Best regards,
Krzysztof

Conor Dooley July 24, 2024, 3:25 p.m. UTC | #3

On Wed, Jul 24, 2024 at 02:19:25PM +0000, Shen Jianping (ME-SE/EAD2) wrote:
> Anyway, please send bindings with driver in the same patchset.
> 
> -> It's fine for us. Nevertheless according to the Devicetree (DT) binding submitting rules 1.1
> 
> " The Documentation/ and include/dt-bindings/ portion of the patch should be a separate patch." See -> https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters
> 
> Shall we still put the binding and driver in the same patch ?

No, different patches please. Also, please fix your mail client so that
it quotes emails properly.

Thanks,
Conor.

> 
> Mit freundlichen Grüßen / Best regards
> 
> Jianping Shen
> 
> Mobility Electronics - Sensors, Engineering Advanced Development - MEMS Solutions Software (ME-SE/EAD2)
> Robert Bosch GmbH | Postfach 13 42 | 72703 Reutlingen | GERMANY | www.bosch.com
> Tel. [phone] | Telefax [phone] | [e-mail]
> 
> Sitz: Stuttgart, Registergericht: Amtsgericht Stuttgart, HRB 14000;
> Aufsichtsratsvorsitzender: Prof. Dr. Stefan Asenkerschbaumer; 
> Geschäftsführung: Dr. Stefan Hartung, Dr. Christian Fischer, Dr. Markus Forschner, 
> Stefan Grosch, Dr. Markus Heyn, Dr. Frank Meyer, Dr. Tanja Rückert
> 
> -----Original Message-----
> From: Krzysztof Kozlowski <[e-mail]> 
> Sent: Wednesday, July 24, 2024 3:17 PM
> To: Shen Jianping (ME-SE/EAD2) <[e-mail]>; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; Lorenz Christian (ME-SE/EAD2) <[e-mail]>; Frauendorf Ulrike (ME/PJ-SW3) <[e-mail]>; Dolde Kai (ME-SE/PAE-A3) <[e-mail]>
> Subject: Re: [PATCH] dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml
> 
> On 24/07/2024 14:51, [e-mail] wrote:
> > From: "Shen Jianping (ME-SE/EAD2)" 
> > <[e-mail]>
> > 
> > dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml
> 
> Something got corrupted here.
> 
> Anyway, please send bindings with driver in the same patchset.
> 
> Limited review follows:
> 
> > Signed-off-by: Shen Jianping (ME-SE/EAD2) 
> > <[e-mail]>
> > ---
> 
> Missing changelog. That's v2, not v1? Provide changelog under --- and version your patches correctly. b4 does it for you...
> 
> 
> >  .../bindings/iio/imu/bosch,smi240.yaml        | 50 +++++++++++++++++++
> >  1 file changed, 50 insertions(+)
> >  create mode 100644 
> > Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
> > 
> > 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..5e89d85d867
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
> > @@ -0,0 +1,50 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id: 
> > +https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> > +cetree.org%2Fschemas%2Fiio%2Fimu%2Fbosch%2Csmi240.yaml%23&data=05%7C0
> > +2%7CJianping.Shen%40de.bosch.com%7Ce4bd3cadbf5f4b17bf7308dcabe2e9b6%7
> > +C0ae51e1907c84e4bbb6d648ee58410f4%7C0%7C0%7C638574238283264004%7CUnkn
> > +own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWw
> > +iLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=gbcSKWPDSDT0qTWo5L%2FUYxlQDunqNl2l
> > +L7JAxwHhNJY%3D&reserved=0
> > +$schema: 
> > +https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> > +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C02%7CJianping.Shen
> > +%40de.bosch.com%7Ce4bd3cadbf5f4b17bf7308dcabe2e9b6%7C0ae51e1907c84e4b
> > +bb6d648ee58410f4%7C0%7C0%7C638574238283281959%7CUnknown%7CTWFpbGZsb3d
> > +8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7
> > +C0%7C%7C%7C&sdata=kW25MDdZz9c3ePA%2BUrGXSWsBWlDxb6UAKjOeLSnFEXU%3D&re
> > +served=0
> > +
> > +title: Bosch SMI240 IMU
> > +
> > +maintainers:
> > +  - Jianping Shen <[e-mail]>
> > +
> > +description: |
> 
> Do not need '|' unless you need to preserve formatting.
> 
> > +  The SMI240 is a combined three axis angular rate and three axis 
> > + acceleration sensor module  with a measurement range of +/-300°/s and up to 16g. SMI240 does not support interrupt.
> > +  
> > + https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> > + w.bosch-semiconductors.com%2Fmems-sensors%2Fhighly-automated-driving
> > + %2Fsmi240%2F&data=05%7C02%7CJianping.Shen%40de.bosch.com%7Ce4bd3cadb
> > + f5f4b17bf7308dcabe2e9b6%7C0ae51e1907c84e4bbb6d648ee58410f4%7C0%7C0%7
> > + C638574238283298041%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQ
> > + IjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=d2%2Bk
> > + j8GzUms9o0Nbdu9QpTzZwujQnjJMp0GFp%2B5MrB0%3D&reserved=0
> 
> This does not look like wrapped according to Linux Coding Style. See Coding Style, so 80.
> 
> > +
> > +properties:
> > +  compatible:
> > +    const: bosch,smi240
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  vdd-supply:
> > +    description: provide VDD power to the sensor.
> > +
> > +  vddio-supply:
> > +    description: provide VDD IO power to the sensor.
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +allOf:
> > +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    spi {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        spi@0 {
> 
> That's not a SPI controller. Your description suggests "imu".
> 
> Best regards,
> Krzysztof
>

Krzysztof Kozlowski July 24, 2024, 3:48 p.m. UTC | #4

On 24/07/2024 16:19, Shen Jianping (ME-SE/EAD2) wrote:
> Anyway, please send bindings with driver in the same patchset.

Fix your quotes. That's my message, not yours.

> 
> -> It's fine for us. Nevertheless according to the Devicetree (DT) binding submitting rules 1.1
> 
> " The Documentation/ and include/dt-bindings/ portion of the patch should be a separate patch." See -> https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters

And what did I say? Patch or patchset?

> 
> Shall we still put the binding and driver in the same patch ?

I did not write "patch".

Please respond inline, instead of top-posting, because it makes your
emails hard to follow.
https://elixir.bootlin.com/linux/v6.8-rc7/source/Documentation/process/submitting-patches.rst#L340

Best regards,
Krzysztof

Jonathan Cameron July 27, 2024, 2 p.m. UTC | #5

On Wed, 24 Jul 2024 16:25:39 +0100
Conor Dooley <[e-mail]> wrote:

> On Wed, Jul 24, 2024 at 02:19:25PM +0000, Shen Jianping (ME-SE/EAD2) wrote:
> > Anyway, please send bindings with driver in the same patchset.
> >   
> > -> It's fine for us. Nevertheless according to the Devicetree (DT) binding submitting rules 1.1  
> > 
> > " The Documentation/ and include/dt-bindings/ portion of the patch should be a separate patch." See -> https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters
> > 
> > Shall we still put the binding and driver in the same patch ?  
> 
> No, different patches please. Also, please fix your mail client so that
> it quotes emails properly.
To add a little more detail.
We are looking for a cover letter and a pair of patches.
1st adds the dt-binding docs.
2nd provides the driver.

The cover letter provides a brief summary of the whole series and provides
a convenient name for tracking it as a whole.

Take a look at how other recent driver addition patch series have been
broken up.

Jonathan

Shen Jianping (ME-SE/EAD2) July 30, 2024, 9:54 a.m. UTC | #6

Hello Jonathan,

Thank you for the explanation !   We will construct the patch-set as you suggested. 

Since the rework of the driver still takes some time, we will send the new version once we finish it.

Mit freundlichen Grüßen / Best regards

Jianping Shen

Mobility Electronics - Sensors, Engineering Advanced Development - MEMS Solutions Software (ME-SE/EAD2)
Robert Bosch GmbH | Postfach 13 42 | 72703 Reutlingen | GERMANY | www.bosch.com
Tel. [phone] | Telefax [phone] | [e-mail]

Sitz: Stuttgart, Registergericht: Amtsgericht Stuttgart, HRB 14000;
Aufsichtsratsvorsitzender: Prof. Dr. Stefan Asenkerschbaumer; 
Geschäftsführung: Dr. Stefan Hartung, Dr. Christian Fischer, Dr. Markus Forschner, 
Stefan Grosch, Dr. Markus Heyn, Dr. Frank Meyer, Dr. Tanja Rückert

-----Original Message-----
From: Jonathan Cameron <[e-mail]> 
Sent: Saturday, July 27, 2024 4:00 PM
To: Conor Dooley <[e-mail]>
Cc: Shen Jianping (ME-SE/EAD2) <[e-mail]>; Krzysztof Kozlowski <[e-mail]>; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]; Lorenz Christian (ME-SE/EAD2) <[e-mail]>; Frauendorf Ulrike (ME/PJ-SW3) <[e-mail]>; Dolde Kai (ME-SE/PAE-A3) <[e-mail]>
Subject: Re: [PATCH] dt-bindings: iio: imu: SMI240: add bosch,smi240.yaml

On Wed, 24 Jul 2024 16:25:39 +0100
Conor Dooley <[e-mail]> wrote:

> On Wed, Jul 24, 2024 at 02:19:25PM +0000, Shen Jianping (ME-SE/EAD2) wrote:
> > Anyway, please send bindings with driver in the same patchset.
> >   
> > -> It's fine for us. Nevertheless according to the Devicetree (DT) 
> > -> binding submitting rules 1.1
> > 
> > " The Documentation/ and include/dt-bindings/ portion of the patch 
> > should be a separate patch." See -> 
> > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> > w.kernel.org%2Fdoc%2Fhtml%2Flatest%2Fdevicetree%2Fbindings%2Fsubmitt
> > ing-patches.html%23i-for-patch-submitters&data=05%7C02%7CJianping.Sh
> > en%40de.bosch.com%7C3d03781ae4564e7e3f7708dcae447463%7C0ae51e1907c84
> > e4bbb6d648ee58410f4%7C0%7C0%7C638576856248420833%7CUnknown%7CTWFpbGZ
> > sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0
> > %3D%7C0%7C%7C%7C&sdata=OEaFoGpb%2F7CVAN2gEpNwG9I1zGBlUNYdLUy%2F7w5Dh
> > b0%3D&reserved=0
> > 
> > Shall we still put the binding and driver in the same patch ?  
> 
> No, different patches please. Also, please fix your mail client so 
> that it quotes emails properly.
To add a little more detail.
We are looking for a cover letter and a pair of patches.
1st adds the dt-binding docs.
2nd provides the driver.

The cover letter provides a brief summary of the whole series and provides a convenient name for tracking it as a whole.

Take a look at how other recent driver addition patch series have been broken up.

Jonathan

Patch

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..5e89d85d867
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/bosch,smi240.yaml
@@ -0,0 +1,50 @@ 
+# 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 IMU
+
+maintainers:
+  - Jianping Shen <[e-mail]>
+
+description: |
+  The SMI240 is a combined three axis angular rate and three axis acceleration sensor module
+  with a measurement range of +/-300°/s and up to 16g. SMI240 does not support interrupt. 
+  https://www.bosch-semiconductors.com/mems-sensors/highly-automated-driving/smi240/
+
+properties:
+  compatible:
+    const: bosch,smi240
+
+  reg:
+    maxItems: 1
+
+  vdd-supply:
+    description: provide VDD power to the sensor.
+
+  vddio-supply:
+    description: provide VDD IO power to the sensor.
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        spi@0 {
+            compatible = "bosch,smi240";            
+            reg = <0>;
+            spi-max-frequency = <10000000>;
+        };
+    };