Re: [PATCH v10 1/6] dt-bindings: mfd: add document bindings for mp2629

From: Jonathan Cameron
Date: Sat Apr 18 2020 - 12:06:27 EST


On Sat, 18 Apr 2020 17:01:17 +0200
saravanan sekar <sravanhome@xxxxxxxxx> wrote:

> Hi Jonathan,
>
> On 18/04/20 4:53 pm, Jonathan Cameron wrote:
> > On Fri, 17 Apr 2020 10:49:58 +0200
> > Saravanan Sekar <sravanhome@xxxxxxxxx> wrote:
> >
> >> Add device tree binding information for mp2629 mfd driver.
> >>
> >> Signed-off-by: Saravanan Sekar <sravanhome@xxxxxxxxx>
> >> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> >> ---
> >> .../devicetree/bindings/mfd/mps,mp2629.yaml | 61 +++++++++++++++++++
> >> 1 file changed, 61 insertions(+)
> >> create mode 100644 Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
> >>
> >> diff --git a/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
> >> new file mode 100644
> >> index 000000000000..b25b29259d67
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
> >> @@ -0,0 +1,61 @@
> >> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> >> +%YAML 1.2
> >> +---
> >> +$id: http://devicetree.org/schemas/mfd/mps,mp2629.yaml#
> >> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> >> +
> >> +title: MP2629 Battery Charger PMIC from Monolithic Power System.
> >> +
> >> +maintainers:
> >> + - Saravanan Sekar <sravanhome@xxxxxxxxx>
> >> +
> >> +description: |
> >> + MP2629 is a PMIC providing battery charging and power supply for smartphones,
> >> + wireless camera and portable devices. Chip is controlled over I2C.
> >> +
> >> + The battery charge management device handles battery charger controller and
> >> + ADC IIO device for battery, system voltage
> >> +
> >> +properties:
> >> + compatible:
> >> + const: mps,mp2629
> >> +
> >> + reg:
> >> + maxItems: 1
> >> +
> >> + interrupts:
> >> + maxItems: 1
> >> +
> >> + interrupt-controller: true
> >> +
> >> + "#interrupt-cells":
> >> + const: 2
> >> + description:
> >> + The first cell is the IRQ number, the second cell is the trigger type.
> >> +
> >> +required:
> >> + - compatible
> >> + - reg
> >> + - interrupts
> >> + - interrupt-controller
> >> + - "#interrupt-cells"
> >> +
> >> +examples:
> >> + - |
> >> + #include <dt-bindings/interrupt-controller/irq.h>
> >> + #include <dt-bindings/input/linux-event-codes.h>
> >> + i2c@7e205000 {
> > I thought the general trend for i2c devices was to leave the i2c
> > part 'vague'.
> >
> > i2c {
> > #address-cells = <1>;
> > #size-cells = <0>;
> >
> > pmic@xxxx etc
> I agree with you and initial patch was as like above, but Lee was
> somehow unhappy and not satisfied with
>
> my explanations. Please find more info on v4.

Ah. Curious. Oh well - over to Rob for a definitive answer!

>
> > Guess it doesn't matter if example contains too much information. Rob?
> >
> > Otherwise looks good to me.
> >
> > Thanks,
> >
> > Jonathan
> >
> >> + #address-cells = <1>;
> >> + #size-cells = <0>;
> >> + reg = <0x7e205000 0x200>;
> >> +
> >> + pmic@4b {
> >> + compatible = "mps,mp2629";
> >> + reg = <0x4b>;
> >> +
> >> + interrupt-controller;
> >> + interrupt-parent = <&gpio2>;
> >> + #interrupt-cells = <2>;
> >> + interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
> >> + };
> >> + };