[2/3] dt-bindings: iio: Add cros ec proximity yaml doc

Commit Message

Stephen Boyd Jan. 22, 2021, 10:54 p.m. UTC

Some cros ECs support a front proximity MKBP event via
'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
a node that is a child of the main cros_ec device node. Devices that
have this ability will describe this in firmware.

Cc: Dmitry Torokhov <[e-mail]>
Cc: Benson Leung <[e-mail]>
Cc: Guenter Roeck <[e-mail]>
Cc: Douglas Anderson <[e-mail]>
Cc: Gwendal Grignou <[e-mail]>
Cc: <[e-mail]>
Cc: Rob Herring <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
---
 .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml

Comments

Jonathan Cameron Jan. 24, 2021, 5:27 p.m. UTC | #1

On Fri, 22 Jan 2021 14:54:42 -0800
Stephen Boyd <[e-mail]> wrote:

> Some cros ECs support a front proximity MKBP event via
> 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
> a node that is a child of the main cros_ec device node. Devices that
> have this ability will describe this in firmware.
> 
> Cc: Dmitry Torokhov <[e-mail]>
> Cc: Benson Leung <[e-mail]>
> Cc: Guenter Roeck <[e-mail]>
> Cc: Douglas Anderson <[e-mail]>
> Cc: Gwendal Grignou <[e-mail]>
> Cc: <[e-mail]>
> Cc: Rob Herring <[e-mail]>
> Signed-off-by: Stephen Boyd <[e-mail]>
> ---
>  .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> new file mode 100644
> index 000000000000..c0a34bdfe4fd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> @@ -0,0 +1,37 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +
> +$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-proximity.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ChromeOS EC MKBP Proximity Sensor
> +
> +maintainers:
> +  - Stephen Boyd <[e-mail]>
> +  - Benson Leung <[e-mail]>
> +  - Enric Balletbo i Serra <[e-mail]>
> +
> +description: |
> +  Google's ChromeOS EC sometimes has the ability to detect user proximity.
> +  This is implemented on the EC as near/far logic and exposed to the OS
> +  via an MKBP switch bit.
> +
> +properties:
> +  compatible:
> +    const: google,cros-ec-proximity
> +
> +  label:
> +    description: Name for proximity sensor
> +
> +required:
> +  - compatible
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    proximity {

Can we at least have the example making it clear this is a child of the
cros_ec device?

> +        compatible = "google,cros-ec-proximity";
> +        label = "proximity-wifi-lte";
> +    };

Gwendal Grignou Jan. 24, 2021, 8:42 p.m. UTC | #2

On Sun, Jan 24, 2021 at 9:28 AM Jonathan Cameron <[e-mail]> wrote:
>
> On Fri, 22 Jan 2021 14:54:42 -0800
> Stephen Boyd <[e-mail]> wrote:
>
> > Some cros ECs support a front proximity MKBP event via
> > 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
> > a node that is a child of the main cros_ec device node. Devices that
> > have this ability will describe this in firmware.
> >
> > Cc: Dmitry Torokhov <[e-mail]>
> > Cc: Benson Leung <[e-mail]>
> > Cc: Guenter Roeck <[e-mail]>
> > Cc: Douglas Anderson <[e-mail]>
> > Cc: Gwendal Grignou <[e-mail]>
> > Cc: <[e-mail]>
> > Cc: Rob Herring <[e-mail]>
> > Signed-off-by: Stephen Boyd <[e-mail]>
> > ---
> >  .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
> >  1 file changed, 37 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > new file mode 100644
> > index 000000000000..c0a34bdfe4fd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > @@ -0,0 +1,37 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +
> > +$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-proximity.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ChromeOS EC MKBP Proximity Sensor
> > +
> > +maintainers:
> > +  - Stephen Boyd <[e-mail]>
> > +  - Benson Leung <[e-mail]>
> > +  - Enric Balletbo i Serra <[e-mail]>
> > +
> > +description: |
> > +  Google's ChromeOS EC sometimes has the ability to detect user proximity.
> > +  This is implemented on the EC as near/far logic and exposed to the OS
> > +  via an MKBP switch bit.
> > +
> > +properties:
> > +  compatible:
> > +    const: google,cros-ec-proximity
Given we have proximity detection in cros_ec via specific sensor (si
1141) or algorithm (on-body/off-body via
MOTIONSENSE_ACTIVITY_BODY_DETECTION), can we name the property
cros-ec-mkbp-proximity?
> > +
> > +  label:
> > +    description: Name for proximity sensor
> > +
> > +required:
> > +  - compatible
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    proximity {
>
> Can we at least have the example making it clear this is a child of the
> cros_ec device?
>
> > +        compatible = "google,cros-ec-proximity";
> > +        label = "proximity-wifi-lte";
> > +    };
>

Rob Herring Jan. 24, 2021, 10:33 p.m. UTC | #3

On Fri, 22 Jan 2021 14:54:42 -0800, Stephen Boyd wrote:
> Some cros ECs support a front proximity MKBP event via
> 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
> a node that is a child of the main cros_ec device node. Devices that
> have this ability will describe this in firmware.
> 
> Cc: Dmitry Torokhov <[e-mail]>
> Cc: Benson Leung <[e-mail]>
> Cc: Guenter Roeck <[e-mail]>
> Cc: Douglas Anderson <[e-mail]>
> Cc: Gwendal Grignou <[e-mail]>
> Cc: <[e-mail]>
> Cc: Rob Herring <[e-mail]>
> Signed-off-by: Stephen Boyd <[e-mail]>
> ---
>  .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml: 'additionalProperties' is a required property
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml: ignoring, error in schema: 
warning: no schema found in file: ./Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml

See https://patchwork.ozlabs.org/patch/1430611

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.

Rob Herring Jan. 25, 2021, 3:02 p.m. UTC | #4

On Sun, Jan 24, 2021 at 05:27:56PM +0000, Jonathan Cameron wrote:
> On Fri, 22 Jan 2021 14:54:42 -0800
> Stephen Boyd <[e-mail]> wrote:
> 
> > Some cros ECs support a front proximity MKBP event via
> > 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
> > a node that is a child of the main cros_ec device node. Devices that
> > have this ability will describe this in firmware.
> > 
> > Cc: Dmitry Torokhov <[e-mail]>
> > Cc: Benson Leung <[e-mail]>
> > Cc: Guenter Roeck <[e-mail]>
> > Cc: Douglas Anderson <[e-mail]>
> > Cc: Gwendal Grignou <[e-mail]>
> > Cc: <[e-mail]>
> > Cc: Rob Herring <[e-mail]>
> > Signed-off-by: Stephen Boyd <[e-mail]>
> > ---
> >  .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
> >  1 file changed, 37 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > new file mode 100644
> > index 000000000000..c0a34bdfe4fd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > @@ -0,0 +1,37 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +
> > +$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-proximity.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ChromeOS EC MKBP Proximity Sensor
> > +
> > +maintainers:
> > +  - Stephen Boyd <[e-mail]>
> > +  - Benson Leung <[e-mail]>
> > +  - Enric Balletbo i Serra <[e-mail]>
> > +
> > +description: |
> > +  Google's ChromeOS EC sometimes has the ability to detect user proximity.
> > +  This is implemented on the EC as near/far logic and exposed to the OS
> > +  via an MKBP switch bit.
> > +
> > +properties:
> > +  compatible:
> > +    const: google,cros-ec-proximity
> > +
> > +  label:
> > +    description: Name for proximity sensor
> > +
> > +required:
> > +  - compatible
> > +
> > +unevaluatedProperties: false

additionalProperties: false

> > +
> > +examples:
> > +  - |
> > +    proximity {
> 
> Can we at least have the example making it clear this is a child of the
> cros_ec device?

Move this to the core Cros EC binding. The core binding needs to define 
'proximity' and reference this binding ($ref).

> 
> > +        compatible = "google,cros-ec-proximity";
> > +        label = "proximity-wifi-lte";
> > +    };
>

Stephen Boyd Jan. 25, 2021, 6:33 p.m. UTC | #5

Quoting Gwendal Grignou (2021-01-24 12:42:56)
> On Sun, Jan 24, 2021 at 9:28 AM Jonathan Cameron <[e-mail]> wrote:
> > On Fri, 22 Jan 2021 14:54:42 -0800
> > Stephen Boyd <[e-mail]> wrote:
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: google,cros-ec-proximity
> Given we have proximity detection in cros_ec via specific sensor (si
> 1141) or algorithm (on-body/off-body via
> MOTIONSENSE_ACTIVITY_BODY_DETECTION), can we name the property
> cros-ec-mkbp-proximity?

Sure that works for me.

Stephen Boyd Jan. 25, 2021, 6:53 p.m. UTC | #6

Quoting Rob Herring (2021-01-25 07:02:03)
> On Sun, Jan 24, 2021 at 05:27:56PM +0000, Jonathan Cameron wrote:
> > On Fri, 22 Jan 2021 14:54:42 -0800
> > Stephen Boyd <[e-mail]> wrote:
> > 
> > > Some cros ECs support a front proximity MKBP event via
> > > 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
> > > a node that is a child of the main cros_ec device node. Devices that
> > > have this ability will describe this in firmware.
> > > 
> > > Cc: Dmitry Torokhov <[e-mail]>
> > > Cc: Benson Leung <[e-mail]>
> > > Cc: Guenter Roeck <[e-mail]>
> > > Cc: Douglas Anderson <[e-mail]>
> > > Cc: Gwendal Grignou <[e-mail]>
> > > Cc: <[e-mail]>
> > > Cc: Rob Herring <[e-mail]>
> > > Signed-off-by: Stephen Boyd <[e-mail]>
> > > ---
> > >  .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
> > >  1 file changed, 37 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > > 
> > > diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > > new file mode 100644
> > > index 000000000000..c0a34bdfe4fd
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > > @@ -0,0 +1,37 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +
> > > +$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-proximity.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: ChromeOS EC MKBP Proximity Sensor
> > > +
> > > +maintainers:
> > > +  - Stephen Boyd <[e-mail]>
> > > +  - Benson Leung <[e-mail]>
> > > +  - Enric Balletbo i Serra <[e-mail]>
> > > +
> > > +description: |
> > > +  Google's ChromeOS EC sometimes has the ability to detect user proximity.
> > > +  This is implemented on the EC as near/far logic and exposed to the OS
> > > +  via an MKBP switch bit.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: google,cros-ec-proximity
> > > +
> > > +  label:
> > > +    description: Name for proximity sensor
> > > +
> > > +required:
> > > +  - compatible
> > > +
> > > +unevaluatedProperties: false
> 
> additionalProperties: false
> 
> > > +
> > > +examples:
> > > +  - |
> > > +    proximity {
> > 
> > Can we at least have the example making it clear this is a child of the
> > cros_ec device?
> 
> Move this to the core Cros EC binding. The core binding needs to define 
> 'proximity' and reference this binding ($ref).

Will do.

Patch

diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
new file mode 100644
index 000000000000..c0a34bdfe4fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
@@ -0,0 +1,37 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-proximity.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChromeOS EC MKBP Proximity Sensor
+
+maintainers:
+  - Stephen Boyd <[e-mail]>
+  - Benson Leung <[e-mail]>
+  - Enric Balletbo i Serra <[e-mail]>
+
+description: |
+  Google's ChromeOS EC sometimes has the ability to detect user proximity.
+  This is implemented on the EC as near/far logic and exposed to the OS
+  via an MKBP switch bit.
+
+properties:
+  compatible:
+    const: google,cros-ec-proximity
+
+  label:
+    description: Name for proximity sensor
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    proximity {
+        compatible = "google,cros-ec-proximity";
+        label = "proximity-wifi-lte";
+    };