linux-kernel - Re: [PATCH 03/14] clk: sunxi: add bus gates for A83T

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Date:	Mon, 1 Feb 2016 23:13:10 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Vishnu Patekar <vishnupatekar0510@...il.com>
Cc:	Rob Herring <robh@...nel.org>, Jonathan Corbet <corbet@....net>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Emilio Lopez <emilio@...pez.com.ar>,
	Jens Kuske <jenskuske@...il.com>,
	Hans De Goede <hdegoede@...hat.com>,
	Chen-Yu Tsai <wens@...e.org>,
	devicetree <devicetree@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-sunxi <linux-sunxi@...glegroups.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Reinder de Haan <patchesrdh@...as.com>,
	linux-clk <linux-clk@...r.kernel.org>
Subject: Re: [PATCH 03/14] clk: sunxi: add bus gates for A83T

On Mon, Feb 1, 2016 at 11:03 PM, Rob Herring <robh@...nel.org> wrote:
> On Sun, Jan 31, 2016 at 09:20:55AM +0800, Vishnu Patekar wrote:
>> A83T has similar bus gates that of H3, including single gating register has
>> different clock parent.
>>
>> As per H3 and A83T datasheet, usbhost is under AHB2.
>>
>> However,below shows allwinner source code assignment:
>> bits: 26 (ehci0), 27 (ehci1), 29 (ohci0) => AHB1 for A83T.
>> bits: 26 (ehci0), 27 (ehci1) => AHB1 for H3
>> bits  29, 30, 31(ohci0,1,2) => AHB2 for H3.
>>
>> until, this confusion is cleared keep it H3 way.
>>
>> Signed-off-by: Vishnu Patekar <vishnupatekar0510@...il.com>
>> ---
>>  Documentation/devicetree/bindings/clock/sunxi.txt | 1 +
>>  drivers/clk/sunxi/clk-sun8i-bus-gates.c           | 2 ++
>>  2 files changed, 3 insertions(+)
>
> Acked-by: Rob Herring <robh@...nel.org>

Acked-by: Chen-Yu Tsai <wens@...e.org>

We should really get the clk parents sorted out though.