linux-kernel - Re: [PATCH 2/8] ARM: dts: dra7-clock: Add "l3init_960m

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Date:	Fri, 7 Mar 2014 15:59:17 +0200
From:	Tero Kristo <t-kristo@...com>
To:	Roger Quadros <rogerq@...com>, <balbi@...com>, <tony@...mide.com>
CC:	<kishon@...com>, <george.cherian@...com>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-usb@...r.kernel.org>
Subject: Re: [PATCH 2/8] ARM: dts: dra7-clock: Add "l3init_960m_gfclk" clock
 gate

On 03/07/2014 03:09 PM, Roger Quadros wrote:
> This clock gate description was missing in older Reference manuals.
> It is present on the SoC to provide 960MHz reference clock to the
> internal USB PHYs.

Can you provide a document reference here?

-Tero

>
> Use l3init_960m_gfclk as parent of usb_otg_ss1_refclk960m and
> usb_otg_ss2_refclk960m.
>
> CC: Tero Kristo <t-kristo@...com>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
>   arch/arm/boot/dts/dra7xx-clocks.dtsi | 12 ++++++++++--
>   1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
> index e96da9a..b8d3a9d 100644
> --- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
> +++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
> @@ -1386,6 +1386,14 @@
>   		ti,dividers = <1>, <8>;
>   	};
>
> +	l3init_960m_gfclk: l3init_960m_gfclk {
> +		#clock-cells = <0>;
> +		compatible = "ti,gate-clock";
> +		clocks = <&dpll_usb_clkdcoldo>;
> +		ti,bit-shift = <8>;
> +		reg = <0x06c0>;
> +	};
> +
>   	dss_32khz_clk: dss_32khz_clk {
>   		#clock-cells = <0>;
>   		compatible = "ti,gate-clock";
> @@ -1533,7 +1541,7 @@
>   	usb_otg_ss1_refclk960m: usb_otg_ss1_refclk960m {
>   		#clock-cells = <0>;
>   		compatible = "ti,gate-clock";
> -		clocks = <&dpll_usb_clkdcoldo>;
> +		clocks = <&l3init_960m_gfclk>;
>   		ti,bit-shift = <8>;
>   		reg = <0x13f0>;
>   	};
> @@ -1541,7 +1549,7 @@
>   	usb_otg_ss2_refclk960m: usb_otg_ss2_refclk960m {
>   		#clock-cells = <0>;
>   		compatible = "ti,gate-clock";
> -		clocks = <&dpll_usb_clkdcoldo>;
> +		clocks = <&l3init_960m_gfclk>;
>   		ti,bit-shift = <8>;
>   		reg = <0x1340>;
>   	};
>

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