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Message-ID: <CAGXv+5F=AEE7t=YQ0hNGtV9rbVBm75D=ftJdZKwD_JmUW9gQWQ@mail.gmail.com>
Date: Fri, 31 May 2024 15:29:06 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Conor Dooley <conor@...nel.org>
Cc: Frank Binns <frank.binns@...tec.com>, Matt Coster <matt.coster@...tec.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, David Airlie <airlied@...il.com>, 
	Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org, 
	linux-clk@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] dt-bindings: clock: mediatek: Add mt8173 mfgtop

On Thu, May 30, 2024 at 11:43 PM Conor Dooley <conor@...nel.org> wrote:
>
> On Thu, May 30, 2024 at 04:35:00PM +0800, Chen-Yu Tsai wrote:
> > The MFG (GPU) block on the MT8173 has a small glue layer, named MFG_TOP
> > in the datasheet, that contains clock gates, some power sequence signal
> > delays, and other unknown registers that get toggled when the GPU is
> > powered on.
> >
> > The clock gates are exposed as clocks provided by a clock controller,
> > while the power sequencing bits are exposed as one singular power domain.
> >
> > Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
> > ---
> >  .../clock/mediatek,mt8173-mfgtop.yaml         | 71 +++++++++++++++++++
> >  include/dt-bindings/clock/mt8173-clk.h        |  7 ++
> >  2 files changed, 78 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt8173-mfgtop.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8173-mfgtop.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8173-mfgtop.yaml
> > new file mode 100644
> > index 000000000000..03c3c1f8cf75
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/clock/mediatek,mt8173-mfgtop.yaml
> > @@ -0,0 +1,71 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +
> > +$id: http://devicetree.org/schemas/clock/mediatek,mt8173-mfgtop.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: MediaTek MT8173 MFG TOP controller
> > +
> > +maintainers:
> > +  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> > +
> > +description:
> > +  The MFG TOP glue layer controls various signals going to the MFG (GPU)
> > +  block on the MT8173.
> > +
> > +properties:
> > +  compatible:
> > +    const: mediatek,mt8173-mfgtop
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    minItems: 4
>
> minItems is not needed when minItems == maxItems.

Ack.

> > +    maxItems: 4
> > +
> > +  clock-names:
> > +    items:
> > +      - const: sys
> > +      - const: mem
> > +      - const: core
> > +      - const: clk26m
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  '#clock-cells':
> > +    const: 1
> > +
> > +  '#power-domain-cells':
> > +    const: 0
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - clock-names
> > +  - power-domains
> > +  - '#clock-cells'
> > +  - '#power-domain-cells'
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +        #include <dt-bindings/clock/mt8173-clk.h>
> > +        #include <dt-bindings/power/mt8173-power.h>
> > +
> > +        mfgtop: clock-controller@...ff000 {
>
> The label here is used, so drop it.

Assume you mean _not_ used. Dropping. :D

> Otherwise,
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks!

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