linux-kernel - Re: [RFC PATCH 3/3] arm64: tegra210: Add XUSB powergates

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Date:	Wed, 29 Jun 2016 16:30:08 +0100
From:	Jon Hunter <jonathanh@...dia.com>
To:	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>
CC:	<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 3/3] arm64: tegra210: Add XUSB powergates


On 28/06/16 12:20, Jon Hunter wrote:
> The Tegra210 XUSB subsystem has 3 power partitions which are XUSBA
> (super-speed logic), XUSBB (USB device logic) and XUSBC (USB host
> logic). Populate the device-tree nodes for these XUSB partitions.
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>  arch/arm64/boot/dts/nvidia/tegra210.dtsi | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
> index 65b829b762bb..efb0fd98b789 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
> @@ -670,6 +670,30 @@
>  					 <&tegra_car TEGRA210_CLK_MIPI_CAL>;
>  				#power-domain-cells = <0>;
>  			};
> +
> +			pd_xusbss: xusba {
> +				clocks = <&tegra_car TEGRA210_CLK_XUSB_SS>;
> +				clock-names = "xusb_ss";
> +				resets = <&tegra_car TEGRA210_CLK_XUSB_SS>;
> +				reset-names = "xusb_ss";
> +				#power-domain-cells = <0>;
> +			};
> +
> +			pd_xusbdev: xusbb {
> +				clocks = <&tegra_car TEGRA210_CLK_XUSB_DEV>;
> +				clock-names = "xusb_dev";
> +				resets = <&tegra_car 95>;
> +				reset-names = "xusb_dev";
> +				#power-domain-cells = <0>;
> +			};
> +
> +			pd_xusbhost: xusbc {
> +				clocks = <&tegra_car TEGRA210_CLK_XUSB_HOST>;
> +				clock-names = "xusb_host";
> +				resets = <&tegra_car TEGRA210_CLK_XUSB_HOST>;
> +				reset-names = "xusb_host";
> +				#power-domain-cells = <0>;
> +			};
>  		};
>  	};

The 'clock-names' and 'reset-names' nodes are not used/required and so I
will remove these.

Jon

-- 
nvpublic