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Message-ID: <20250205-purge-debating-21273d3b0f40@spud>
Date: Wed, 5 Feb 2025 20:13:39 +0000
From: Conor Dooley <conor@...nel.org>
To: Naresh Solanki <naresh.solanki@...ements.com>
Cc: Guenter Roeck <linux@...ck-us.net>, broonie@...nel.org,
Jean Delvare <jdelvare@...e.com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>, linux-hwmon@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: hwmon: ir38060: Move & update dt binding
On Wed, Feb 05, 2025 at 03:51:25PM +0530, Naresh Solanki wrote:
> On Wed, 5 Feb 2025 at 00:52, Conor Dooley <conor@...nel.org> wrote:
> > On Tue, Feb 04, 2025 at 11:33:03PM +0530, Naresh Solanki wrote:
> > > Move dt binding under hwmon/pmbus & align accordingly.
> > >
> > > Signed-off-by: Naresh Solanki <naresh.solanki@...ements.com>
> > > ---
> > > .../hwmon/pmbus/infineon,ir38060.yaml | 61 +++++++++++++++++++
> > > .../bindings/regulator/infineon,ir38060.yaml | 45 --------------
> > > 2 files changed, 61 insertions(+), 45 deletions(-)
> > > create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/infineon,ir38060.yaml
> > > delete mode 100644 Documentation/devicetree/bindings/regulator/infineon,ir38060.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/infineon,ir38060.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/infineon,ir38060.yaml
> > > new file mode 100644
> > > index 000000000000..e1f683846a54
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/hwmon/pmbus/infineon,ir38060.yaml
> > > @@ -0,0 +1,61 @@
> > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/hwmon/pmbus/infineon,ir38060.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Infineon Buck Regulators with PMBUS interfaces
> > > +
> > > +maintainers:
> > > + - Not Me.
> >
> > How the hell did this get merged!
> >
> > > +
> > > +properties:
> > > + compatible:
> > > + enum:
> > > + - infineon,ir38060
> > > + - infineon,ir38064
> > > + - infineon,ir38164
> > > + - infineon,ir38263
> > > +
> > > + reg:
> > > + maxItems: 1
> > > +
> > > + regulators:
> > > + type: object
> > > + description:
> > > + list of regulators provided by this controller.
> >
> > Can you explain why this change is justified? Your commit message is
> > explaining what you're doing but not why it's okay to do.
> This is based on other similar dt-bindings under hwmon/pmbus.
Okay, but what I am looking for is an explanation of why it is okay to
change the node from
| regulator@34 {
| compatible = "infineon,ir38060";
| reg = <0x34>;
|
| regulator-min-microvolt = <437500>;
| regulator-max-microvolt = <1387500>;
| };
to
| regulator@34 {
| compatible = "infineon,ir38060";
| reg = <0x34>;
|
| regulators {
| vout {
| regulator-name = "p5v_aux";
| regulator-min-microvolt = <437500>;
| regulator-max-microvolt = <1387500>;
| };
| };
?
Will the driver handle both of these identically? Is backwards
compatibility with the old format maintained? Was the original format
wrong and does not work? Why is a list of regulators needed when the
device only provides one?
Cheers,
Conor.
> > > + properties:
> > > + vout:
> > > + $ref: /schemas/regulator/regulator.yaml#
> > > + type: object
> > > +
> > > + unevaluatedProperties: false
> > > +
> > > + additionalProperties: false
> > > +
> > > +required:
> > > + - compatible
> > > + - reg
> > > +
> > > +unevaluatedProperties: false
> > > +
> > > +examples:
> > > + - |
> > > + i2c {
> > > + #address-cells = <1>;
> > > + #size-cells = <0>;
> > > +
> > > + regulator@34 {
> > > + compatible = "infineon,ir38060";
> > > + reg = <0x34>;
> > > +
> > > + regulators {
> > > + vout {
> > > + regulator-name = "p5v_aux";
> > > + regulator-min-microvolt = <437500>;
> > > + regulator-max-microvolt = <1387500>;
> > > + };
> > > + };
> > > + };
> > > + };
> > > diff --git a/Documentation/devicetree/bindings/regulator/infineon,ir38060.yaml b/Documentation/devicetree/bindings/regulator/infineon,ir38060.yaml
> > > deleted file mode 100644
> > > index e6ffbc2a2298..000000000000
> > > --- a/Documentation/devicetree/bindings/regulator/infineon,ir38060.yaml
> > > +++ /dev/null
> > > @@ -1,45 +0,0 @@
> > > -# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > > -%YAML 1.2
> > > ----
> > > -$id: http://devicetree.org/schemas/regulator/infineon,ir38060.yaml#
> > > -$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > -
> > > -title: Infineon Buck Regulators with PMBUS interfaces
> > > -
> > > -maintainers:
> > > - - Not Me.
> > > -
> > > -allOf:
> > > - - $ref: regulator.yaml#
> > > -
> > > -properties:
> > > - compatible:
> > > - enum:
> > > - - infineon,ir38060
> > > - - infineon,ir38064
> > > - - infineon,ir38164
> > > - - infineon,ir38263
> > > -
> > > - reg:
> > > - maxItems: 1
> > > -
> > > -required:
> > > - - compatible
> > > - - reg
> > > -
> > > -unevaluatedProperties: false
> > > -
> > > -examples:
> > > - - |
> > > - i2c {
> > > - #address-cells = <1>;
> > > - #size-cells = <0>;
> > > -
> > > - regulator@34 {
> > > - compatible = "infineon,ir38060";
> > > - reg = <0x34>;
> > > -
> > > - regulator-min-microvolt = <437500>;
> > > - regulator-max-microvolt = <1387500>;
> > > - };
> > > - };
> > >
> > > base-commit: bfbb730c4255e1965d202f48e7aa71baa9a7c65b
> > > --
> > > 2.42.0
> > >
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