Re: [PATCH v4 02/12] dt-bindings: PCI: brcmstb: Add 7712 SoC description

From: Jim Quinlan
Date: Tue Jul 23 2024 - 17:03:58 EST


On Wed, Jul 17, 2024 at 2:53 AM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
>
> On 16/07/2024 23:31, Jim Quinlan wrote:
> > This adds the description for the 7712 SoC, a Broadcom
> > STB sibling chip of the RPi 5. Two new reset controllers
> > are described.
> >
> > Signed-off-by: Jim Quinlan <james.quinlan@xxxxxxxxxxxx>
> > ---
> > .../bindings/pci/brcm,stb-pcie.yaml | 26 +++++++++++++++++++
> > 1 file changed, 26 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> > index 692f7ed7c98e..90683a0df2c5 100644
> > --- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> > +++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> > @@ -21,6 +21,7 @@ properties:
> > - brcm,bcm7425-pcie # Broadcom 7425 MIPs
> > - brcm,bcm7435-pcie # Broadcom 7435 MIPs
> > - brcm,bcm7445-pcie # Broadcom 7445 Arm
> > + - brcm,bcm7712-pcie # Broadcom STB sibling of Rpi 5
> >
> > reg:
> > maxItems: 1
> > @@ -100,12 +101,16 @@ properties:
> > items:
> > - description: reset for external PCIe PERST# signal # perst
> > - description: reset for phy reset calibration # rescal
> > + - description: reset for PCIe/CPU bus bridge # bridge
> > + - description: reset for soft PCIe core reset # swinit
> >
> > reset-names:
> > minItems: 1
> > items:
> > - const: perst
> > - const: rescal
> > + - const: bridge
> > + - const: swinit
>
> This does not match at all what you have in allOf:if:then section.
>
> >
> > required:
> > - compatible
> > @@ -159,6 +164,27 @@ allOf:
> > - resets
> > - reset-names
> >
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: brcm,bcm7712-pcie
> > + then:
> > + properties:
> > + resets:
> > + minItems: 3
> > + maxItems: 3
> > +
> > + reset-names:
> > + items:
> > + - const: rescal
>
> Look - here it is rescal. Before you said it must be perst.
>
> https://elixir.bootlin.com/linux/v6.8/source/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml#L132

Hello Krzysztof,

The difference between my commits and the above example is that the
above example has no "desc" line(s) to describe the clocks -- How
would you add this? Or are you okay with (a) no description or (b)
using a "#comment..." next to the clock's name?

Regards,
Jim Quinlan
Broadcom STB/CM
>
> Best regards,
> Krzysztof
>

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