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

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Message-ID:
 <OS8PR06MB7541672B4F9BCAA37E0D4005F28C2@OS8PR06MB7541.apcprd06.prod.outlook.com>
Date: Mon, 19 Aug 2024 06:42:30 +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 19/08/2024 07:55, Ryan Chen wrote:
> >> Subject: Re: [PATCH 3/4] dt-bindings: clock: Add AST2700 clock
> >> bindings
> >>
> >> On 13/08/2024 03:53, Ryan Chen wrote:
> >>>> Drop the define for number of clocks from the header, because it is
> >>>> not a
> >>
> >> *NUMBER OF CLOCKS*
> >>
> >>>> binding. You can put it in the driver or not, I don't care and do
> >>>> not provide guidance on this because I don't know if it makes sense at all.
> >>>> What I know is that number of clocks is not related to binding. It
> >>>> is not needed
> >>
> >> *NUMBER OF CLOCKS*
> >>
> >>>> in the binding, either.
> >>>
> >>> Sorry, I am confused.
> >>> if you think that number of clocks is not related to binding.
> >>
> >> *NUMBER OF CLOCKS*
> >>
> >>> How dtsi claim for clk?
> >>> For example in dtsi.
> >>> include <dt-bindings/clock/aspeed,ast2700-clk.h>
> >>> usb3bhp: usb3bhp {
> >>> ....
> >>> clocks = <&syscon0 SCU0_CLK_GATE_PORTAUSB>;
> >>
> >> And where is *NUMBER OF CLOCKS* here? I don't see any problem. No
> >> useless SCU0_CLK_GATE_NUM define here.
> >>
> > Understood now, I will remove those *NUMBER OF CLOCKS*.
> > And will replace to
> > #define SCU0_CLK_END  34
> 
> NAK, it's like you keep ignoring my comments entirely. Even if you call it
> "SCU0_CLK_NOT_END" it does not change. Do you understand that it is not
> about name? Read my first comment.
> 
> >
> > Refer:
> > https://github.com/torvalds/linux/blob/master/include/dt-bindings/cloc
> > k/imx8-clock.h#L87
> 
> So you found a bug and this allows you to create the same bug?
> 
Sorry, I don't see this is a bug.
But I try to understand your point, you prefer following for clock nums, am I correct?
https://github.com/torvalds/linux/blob/master/drivers/clk/meson/g12a.c#L5558-L5559

dt-binding is index table like following.
https://github.com/torvalds/linux/blob/master/drivers/clk/meson/g12a.c#L4380

> 
> Best regards,
> Krzysztof