linux-kernel - Re: [PATCH v2 2/5] dts: sun8i-h3: Add APB0 related clocks and resets

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Date:	Wed, 3 Feb 2016 13:35:34 +0100
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Krzysztof Adamski <k@...ko.eu>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh@...nel.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Vishnu Patekar <vishnupatekar0510@...il.com>,
	Jens Kuske <jenskuske@...il.com>, linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 2/5] dts: sun8i-h3: Add APB0 related clocks and resets

Hi,

On Tue, Feb 02, 2016 at 10:21:50PM +0100, Krzysztof Adamski wrote:
> APB0 is bearly mentioned in H3 User Manual and it is only setup in the
> Allwinners kernel dump for CIR. I have verified experimentally that the
> gate for R_PIO exists and works, though. There are probably other gates
> there but I don't know their order right now and I don't have access to
> their peripherals on my board to test them.
> 
> Signed-off-by: Krzysztof Adamski <k@...ko.eu>
> ---
>  arch/arm/boot/dts/sun8i-h3.dtsi | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
> index 1524130e..ce35e93 100644
> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
> @@ -276,6 +276,32 @@
>  			clocks = <&osc24M>, <&pll6 1>, <&pll5>;
>  			clock-output-names = "mbus";
>  		};
> +
> +		ahb0: ahb0_clk {
> +			compatible = "fixed-factor-clock";
> +			#clock-cells = <0>;
> +			clock-div = <1>;
> +			clock-mult = <1>;
> +			clocks = <&osc24M>, <&osc32k>;
> +			clock-output-names = "ahb0";
> +		};

I'm not sure what you mean there. The fixed factor clocks only take a
single parent, and you provided two.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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