linux-kernel - RE: [PATCH 3/4] dt-bindings: clock: Add AST2700 clock bindings

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Message-ID:
 <OS8PR06MB7541CA018C86E262F826B9E5F2BA2@OS8PR06MB7541.apcprd06.prod.outlook.com>
Date: Fri, 9 Aug 2024 06:25:54 +0000
From: Ryan Chen <ryan_chen@...eedtech.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Christophe JAILLET
	<christophe.jaillet@...adoo.fr>, Lee Jones <lee@...nel.org>, Rob Herring
	<robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
	<conor+dt@...nel.org>, Joel Stanley <joel@....id.au>, Andrew Jeffery
	<andrew@...econstruct.com.au>, Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-aspeed@...ts.ozlabs.org"
	<linux-aspeed@...ts.ozlabs.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-clk@...r.kernel.org"
	<linux-clk@...r.kernel.org>
Subject: RE: [PATCH 3/4] dt-bindings: clock: Add AST2700 clock bindings

> Subject: Re: [PATCH 3/4] dt-bindings: clock: Add AST2700 clock bindings
>
> On 09/08/2024 07:47, Ryan Chen wrote:
> >> Subject: Re: [PATCH 3/4] dt-bindings: clock: Add AST2700 clock
> >> bindings
> >>
> >> Le 08/08/2024 à 09:59, Ryan Chen a écrit :
> >>> Add dt bindings for AST2700 clock controller
> >>>
> >>> Signed-off-by: Ryan Chen <ryan_chen@...eedtech.com>
> >>> ---
> >>>   .../dt-bindings/clock/aspeed,ast2700-clk.h    | 175
> >> ++++++++++++++++++
> >>>   1 file changed, 175 insertions(+)
> >>>   create mode 100644 include/dt-bindings/clock/aspeed,ast2700-clk.h
> >>>
> >>> diff --git a/include/dt-bindings/clock/aspeed,ast2700-clk.h
> >>> b/include/dt-bindings/clock/aspeed,ast2700-clk.h
> >>> new file mode 100644
> >>> index 000000000000..facf72352c3e
> >>> --- /dev/null
> >>> +++ b/include/dt-bindings/clock/aspeed,ast2700-clk.h
> >>> @@ -0,0 +1,175 @@
> >>> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> >>> +/*
> >>> + * Device Tree binding constants for AST2700 clock controller.
> >>> + *
> >>> + * Copyright (c) 2024 Aspeed Technology Inc.
> >>> + */
> >>> +
> >>> +#ifndef __DT_BINDINGS_CLOCK_AST2700_H #define
> >>> +__DT_BINDINGS_CLOCK_AST2700_H
> >>> +
> >>> +/* SOC0 clk-gate */
> >>> +#define SCU0_CLK_GATE_MCLK (0)
> >>> +#define SCU0_CLK_GATE_ECLK (1)
> >>> +#define SCU0_CLK_GATE_2DCLK        (2)
> >>> +#define SCU0_CLK_GATE_VCLK (3)
> >>> +#define SCU0_CLK_GATE_BCLK (4)
> >>> +#define SCU0_CLK_GATE_VGA0CLK      (5)
> >>> +#define SCU0_CLK_GATE_REFCLK       (6)
> >>> +#define SCU0_CLK_GATE_PORTBUSB2CLK (7) #define
> SCU0_CLK_GATE_RSV8
> >>> +(8)
> >>> +#define SCU0_CLK_GATE_UHCICLK      (9)
> >>> +#define SCU0_CLK_GATE_VGA1CLK      (10)
> >>> +#define SCU0_CLK_GATE_DDRPHYCLK    (11)
> >>> +#define SCU0_CLK_GATE_E2M0CLK      (12)
> >>> +#define SCU0_CLK_GATE_HACCLK       (13)
> >>> +#define SCU0_CLK_GATE_PORTAUSB2CLK (14)
> >>> +#define SCU0_CLK_GATE_UART4CLK     (15)
> >>> +#define SCU0_CLK_GATE_SLICLK       (16)
> >>> +#define SCU0_CLK_GATE_DACCLK       (17)
> >>> +#define SCU0_CLK_GATE_DP   (18)
> >>> +#define SCU0_CLK_GATE_E2M1CLK      (19)
> >>> +#define SCU0_CLK_GATE_CRT0CLK      (20)
> >>> +#define SCU0_CLK_GATE_CRT1CLK      (21)
> >>> +#define SCU0_CLK_GATE_VLCLK        (22)
> >>> +#define SCU0_CLK_GATE_ECDSACLK     (23)
> >>> +#define SCU0_CLK_GATE_RSACLK       (24)
> >>> +#define SCU0_CLK_GATE_RVAS0CLK     (25)
> >>> +#define SCU0_CLK_GATE_UFSCLK       (26)
> >>> +#define SCU0_CLK_GATE_EMMCCLK      (27)
> >>> +#define SCU0_CLK_GATE_RVAS1CLK     (28)
> >>> +/* reserved 29 ~ 31*/
>
> No, you cannot reserve IDs. They are always continous.
I think for mis-understood.
I will remove the comment.
And keep it is continuous. Thanks.
>
> >>> +#define SCU0_CLK_GATE_NUM  (SCU0_CLK_GATE_RVAS1CLK + 1)
>
> No, not a binding.

I will modify the subject.

>
> >>> +
> >>> +/* SOC0 clk */
> >>> +#define SCU0_CLKIN         (SCU0_CLK_GATE_NUM + 0)
> >>
> >> So SCU0_CLKIN is 28+1+0 = 29 which is said to be reserved in the
> >> comment above.
> >
> > Acutely, I keep reserved is because data sheet has reserved bits from 29~31.
> > If you have concern about it, I can remove the comment.
> > Or are you prefer by following?
> > #define SCU0_CLK_GATE_RESERVED29        (29)
> > #define SCU0_CLK_GATE_RESERVED30        (30)
> > #define SCU0_CLK_GATE_RESERVED31        (31)
> > #define SCU0_CLK_GATE_NUM       (SCU0_CLK_GATE_RESERVED31 + 1)
> >
> >>
> >>> +#define SCU0_CLK_24M               (SCU0_CLK_GATE_NUM + 1)
> >>> +#define SCU0_CLK_192M              (SCU0_CLK_GATE_NUM + 2)
> >>> +#define SCU0_CLK_UART              (SCU0_CLK_GATE_NUM + 3)
> >>> +#define SCU0_CLK_PSP               (SCU0_CLK_GATE_NUM + 4)
> >>> +#define SCU0_CLK_HPLL              (SCU0_CLK_GATE_NUM + 5)
> >>
> >> ...
> >
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> >
> > DISCLAIMER:
> > This message (and any attachments) may contain legally privileged and/or
> other confidential information. If you have received it in error, please notify the
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>
> Maybe I am the intended recipient of your message, maybe not. I don't want
> to have any legal questions regarding upstream, public collaboration, thus
> probably I should just remove your messages.
>
> Please talk with your IT that such disclaimers in open-source are not desired
> (and maybe even harmful).
> If you do not understand why, please also see:
> https://www.youtube.com/live/fMeH7wqOwXA?si=GY7igfbda6vnjXlJ&t=835
>
> If you need to go around company SMTP server, then consider using b4
> web-relay: https://b4.docs.kernel.org/en/latest/contributor/send.html
>
> Please be informed that by responding to this email you agree that all
> communications from you and/or your company is made public. In other words,
> all messages originating from you and/or your company will be made public.
>
> Best regards,
> Krzysztof

************* Email Confidentiality Notice ********************
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DISCLAIMER:
This message (and any attachments) may contain legally privileged and/or other confidential information. If you have received it in error, please notify the sender by reply e-mail and immediately delete the e-mail and any attachments without copying or disclosing the contents. Thank you.