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Date: Tue, 27 Feb 2024 17:47:05 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Yoshinori Sato <ysato@...rs.sourceforge.jp>
Cc: linux-sh@...r.kernel.org, Damien Le Moal <dlemoal@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
Geert Uytterhoeven <geert+renesas@...der.be>, Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Thomas Gleixner <tglx@...utronix.de>, Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kw@...ux.com>,
Bjorn Helgaas <bhelgaas@...gle.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>, Magnus Damm <magnus.damm@...il.com>,
Daniel Lezcano <daniel.lezcano@...aro.org>, Rich Felker <dalias@...c.org>,
John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>, Lee Jones <lee@...nel.org>,
Helge Deller <deller@....de>, Heiko Stuebner <heiko@...ech.de>,
Jernej Skrabec <jernej.skrabec@...il.com>, Chris Morgan <macromorgan@...mail.com>,
Yang Xiwen <forbidden405@...mail.com>, Sebastian Reichel <sre@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>, Randy Dunlap <rdunlap@...radead.org>,
Arnd Bergmann <arnd@...db.de>, Vlastimil Babka <vbabka@...e.cz>, Hyeonggon Yoo <42.hyeyoo@...il.com>,
David Rientjes <rientjes@...gle.com>, Baoquan He <bhe@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>, Guenter Roeck <linux@...ck-us.net>,
Stephen Rothwell <sfr@...b.auug.org.au>, Azeem Shaikh <azeemshaikh38@...il.com>,
Javier Martinez Canillas <javierm@...hat.com>, Max Filippov <jcmvbkbc@...il.com>,
Palmer Dabbelt <palmer@...osinc.com>, Bin Meng <bmeng@...ylab.org>,
Jonathan Corbet <corbet@....net>, Jacky Huang <ychuang3@...oton.com>,
Lukas Bulwahn <lukas.bulwahn@...il.com>, Biju Das <biju.das.jz@...renesas.com>,
Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
Sam Ravnborg <sam@...nborg.org>, Sergey Shtylyov <s.shtylyov@....ru>,
Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>,
Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>, linux-ide@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linux-pci@...r.kernel.org,
linux-serial@...r.kernel.org, linux-fbdev@...r.kernel.org
Subject: Re: [DO NOT MERGE v6 13/37] dt-bindings: clock: sh7750-cpg: Add
renesas,sh7750-cpg header.
Hi Sato-san,
Thanks for your patch!
On Tue, Jan 9, 2024 at 9:24 AM Yoshinori Sato
<ysato@...rs.sourceforge.jp> wrote:
> SH7750 CPG Clock output define.
Please improve the patch description.
> Signed-off-by: Yoshinori Sato <ysato@...rs.sourceforge.jp>
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/renesas,sh7750-cpg.yaml
> @@ -0,0 +1,103 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/renesas,sh7750-cpg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas SH7750/7751 Clock Pulse Generator (CPG)
> +
> +maintainers:
> + - Yoshinori Sato <ysato@...rs.sourceforge.jp>
> +
> +description:
> + The Clock Pulse Generator (CPG) generates core clocks for the SoC. It
> + includes PLLs, and variable ratio dividers.
> +
> + The CPG may also provide a Clock Domain for SoC devices, in combination with
> + the CPG Module Stop (MSTP) Clocks.
> +
> +properties:
> + compatible:
> + enum:
> + - renesas,sh7750-cpg # SH7750
> + - renesas,sh7750s-cpg # SH775S
> + - renesas,sh7750r-cpg # SH7750R
> + - renesas,sh7751-cpg # SH7751
> + - renesas,sh7751r-cpg # SH7751R
> +
> + reg: true
> +
> + reg-names: true
> +
> + clocks: true
clocks:
maxItems: 1
> +
> + clock-names: true
clock-names:
const: extal
> +examples:
> + - |
> + #include <dt-bindings/clock/sh7750-cpg.h>
> + cpg: clock-controller@...00000 {
> + #clock-cells = <1>;
> + #power-domain-cells = <0>;
> + compatible = "renesas,sh7751r-cpg";
> + clocks = <&xtal>;
> + clock-names = "xtal";
"extal"
"xtal" is an output pin, connected to a crystal resonator.
"extal" is the clock input put (either crystal resonator or exteral
clock input.
> + reg = <0xffc00000 20>, <0xfe0a0000 16>;
> + reg-names = "FRQCR", "CLKSTP00";
> + renesas,mode = <0>;
> + };
> diff --git a/include/dt-bindings/clock/sh7750-cpg.h b/include/dt-bindings/clock/sh7750-cpg.h
> new file mode 100644
> index 000000000000..17d5a8076aac
> --- /dev/null
> +++ b/include/dt-bindings/clock/sh7750-cpg.h
> @@ -0,0 +1,26 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> + *
> + * Copyright 2023 Yoshinori Sato
> + */
> +
> +#ifndef __DT_BINDINGS_CLOCK_SH7750_H__
> +#define __DT_BINDINGS_CLOCK_SH7750_H__
> +
> +#define SH7750_CPG_PLLOUT 0
> +
> +#define SH7750_CPG_FCK 1
PCK?
> +#define SH7750_CPG_BCK 2
> +#define SH7750_CPG_ICK 3
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68korg
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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