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Date: Tue, 03 May 2022 21:55:08 +0200
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: icenowy@...look.com, Rob Herring <robh@...nel.org>
Cc: Chen-Yu Tsai <wens@...e.org>, Samuel Holland <samuel@...lland.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Andre Przywara <andre.przywara@....com>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
Icenowy Zheng <icenowy@...c.io>
Subject: Re: Re: [PATCH 05/12] dt-bindings: clock: sunxi-ng: add bindings for R329 CCUs
Dne ponedeljek, 02. maj 2022 ob 23:34:27 CEST je Rob Herring napisal(a):
> On Fri, Apr 22, 2022 at 11:41:08PM +0800, icenowy@...look.com wrote:
> > From: Icenowy Zheng <icenowy@...c.io>
> >
> > R329 has a CPUX CCU and a R-CCU, with all PLLs in R-CCU.
> >
> > Add bindings for them, with R-CCU only taking 3 oscillators as input and
> > main CCU taking oscillators + PLLs as input.
> >
> > Signed-off-by: Icenowy Zheng <icenowy@...c.io>
> > ---
> > .../clock/allwinner,sun4i-a10-ccu.yaml | 62 ++++++++++++++--
> > include/dt-bindings/clock/sun50i-r329-ccu.h | 73 +++++++++++++++++++
> > include/dt-bindings/clock/sun50i-r329-r-ccu.h | 45 ++++++++++++
> > include/dt-bindings/reset/sun50i-r329-ccu.h | 45 ++++++++++++
> > include/dt-bindings/reset/sun50i-r329-r-ccu.h | 24 ++++++
> > 5 files changed, 241 insertions(+), 8 deletions(-)
> > create mode 100644 include/dt-bindings/clock/sun50i-r329-ccu.h
> > create mode 100644 include/dt-bindings/clock/sun50i-r329-r-ccu.h
> > create mode 100644 include/dt-bindings/reset/sun50i-r329-ccu.h
> > create mode 100644 include/dt-bindings/reset/sun50i-r329-r-ccu.h
> >
> > diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-
ccu.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-
ccu.yaml
> > index 15ed64d35261..c7a429e55483 100644
> > --- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ccu.yaml
> > +++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ccu.yaml
> > @@ -45,6 +45,8 @@ properties:
> > - allwinner,sun50i-h6-r-ccu
> > - allwinner,sun50i-h616-ccu
> > - allwinner,sun50i-h616-r-ccu
> > + - allwinner,sun50i-r329-ccu
> > + - allwinner,sun50i-r329-r-ccu
> > - allwinner,suniv-f1c100s-ccu
> > - nextthing,gr8-ccu
> >
> > @@ -106,6 +108,7 @@ else:
> > - allwinner,sun50i-a100-ccu
> > - allwinner,sun50i-h6-ccu
> > - allwinner,sun50i-h616-ccu
> > + - allwinner,sun50i-r329-r-ccu
> >
> > then:
> > properties:
> > @@ -118,14 +121,57 @@ else:
> > maxItems: 3
> >
> > else:
> > - properties:
> > - clocks:
> > - minItems: 2
> > - maxItems: 2
> > -
> > - clock-names:
> > - minItems: 2
> > - maxItems: 2
> > + if:
> > + properties:
> > + compatible:
> > + const: allwinner,sun50i-r329-ccu
> > + then:
> > + properties:
> > + clocks:
> > + minItems: 13
> > + maxItems: 13
>
> This is (or should be) implied by the size of 'items'. Did you find that
> to not be the case?
>
> > + items:
> > + - description: High Frequency Oscillator (usually at 24MHz)
> > + - description: Low Frequency Oscillator (usually at 32kHz)
> > + - description: Internal Oscillator
> > + - description: CPUX PLL
> > + - description: Peripherals PLL
> > + - description: Peripherals PLL (2x)
> > + - description: Peripherals PLL derivated 800MHz clock
> > + - description: Audio PLL 0
> > + - description: Audio PLL 0 (/2)
> > + - description: Audio PLL 0 (/5)
> > + - description: Audio PLL 1
> > + - description: Audio PLL 1 (2x)
> > + - description: Audio PLL 1 (4x)
>
> > diff --git a/include/dt-bindings/clock/sun50i-r329-ccu.h b/include/dt-
bindings/clock/sun50i-r329-ccu.h
> > new file mode 100644
> > index 000000000000..116f8d13a9b3
> > --- /dev/null
> > +++ b/include/dt-bindings/clock/sun50i-r329-ccu.h
> > @@ -0,0 +1,73 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Copyright (c) 2021 Sipeed
>
> It's 2022.
>
> > diff --git a/include/dt-bindings/clock/sun50i-r329-r-ccu.h b/include/dt-
bindings/clock/sun50i-r329-r-ccu.h
> > new file mode 100644
> > index 000000000000..c327d1a1b602
> > --- /dev/null
> > +++ b/include/dt-bindings/clock/sun50i-r329-r-ccu.h
> > @@ -0,0 +1,45 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
>
> > diff --git a/include/dt-bindings/reset/sun50i-r329-ccu.h b/include/dt-
bindings/reset/sun50i-r329-ccu.h
> > new file mode 100644
> > index 000000000000..bb704a82443f
> > --- /dev/null
> > +++ b/include/dt-bindings/reset/sun50i-r329-ccu.h
> > @@ -0,0 +1,45 @@
> > +/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
>
> > diff --git a/include/dt-bindings/reset/sun50i-r329-r-ccu.h b/include/dt-
bindings/reset/sun50i-r329-r-ccu.h
> > new file mode 100644
> > index 000000000000..40644f2f21c6
> > --- /dev/null
> > +++ b/include/dt-bindings/reset/sun50i-r329-r-ccu.h
> > @@ -0,0 +1,24 @@
> > +/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
>
> Why the different licenses? GPL-2.0 OR BSD-2-Clause is preferred. MIT is
> fine if that's what matches the dts files.
Yes, most, if not all, DT files for Allwinner are dual licensed under GPL2+ and
MIT. There are still some files under include/dt-bindings which are dual
licensed under GPL2+ and X11, but I believe those files are for older SoCs.
Best regards,
Jernej
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