linux-kernel - RE: [PATCH 2/4] dt-bindings: reset Add AST2700 reset bindings

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Message-ID:
 <OS8PR06MB75413780807BD24C2E281303F2BA2@OS8PR06MB7541.apcprd06.prod.outlook.com>
Date: Fri, 9 Aug 2024 06:12:02 +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 2/4] dt-bindings: reset Add AST2700 reset bindings

> Subject: Re: [PATCH 2/4] dt-bindings: reset Add AST2700 reset bindings
>
> On 09/08/2024 07:42, Ryan Chen wrote:
> >>> +#define SCU0_RESET_PORTA_EHCI              (38)
> >>> +#define SCU0_RESET_PORTA_VHUB0             (38)
> >>
> >> Is having 38 twice expected?
> >> If not, why not use an enum, BTW?
> >>
> > Yes, it is expected. Due to 38 is shared reset for 2 usb controller.
> > One for EHCI, another is for vhub0. So I do define the same value.
> > That I can do more clear in dtsi description.
> > The following will be expected dtsi file descript.
>
> No, that's confusing. Don't do this. You are hiding information that one reset is
> shared. Terrible idea.

OK I can remove this.
Use #define SCU0_RESET_PORTA_USB              (38)
>
> Best regards,
> Krzysztof

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