linux-kernel - Re: [PATCH v4 1/5] mfd: omap-usb-host: Update DT clock binding information

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Date:	Wed, 08 Jan 2014 11:40:14 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Roger Quadros <rogerq@...com>, devicetree@...r.kernel.org,
	Samuel Ortiz <sameo@...ux.intel.com>, tony@...mide.com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	balbi@...com, "Kristo, Tero" <t-kristo@...com>,
	bcousson@...libre.com, linux-omap@...r.kernel.org,
	Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH v4 1/5] mfd: omap-usb-host: Update DT clock binding information

On Wednesday 08 January 2014 15:57:19 Roger Quadros wrote:
> It is a clock gate defined like so in the DT clock data
> 
> on OMAP4
>         init_60m_fclk: init_60m_fclk {
>                 #clock-cells = <0>;
>                 compatible = "ti,divider-clock";
>                 clocks = <&dpll_usb_m2_ck>;
>                 reg = <0x0104>;
>                 ti,dividers = <1>, <8>;
>         };
> 
> on OMAP5
>         l3init_60m_fclk: l3init_60m_fclk {
>                 #clock-cells = <0>;
>                 compatible = "ti,divider-clock";
>                 clocks = <&dpll_usb_m2_ck>;
>                 reg = <0x0104>;
>                 ti,dividers = <1>, <8>;
>         };
> 
> So you can see that it is the same thing with a different name.

Right, but init_60m_fclk is the name of the clock output of the
divider here, which is /not/ what you should put in the "clock-names"
property of the consumer. The clock input name should reflect what
the clock is used for instead.

	Arnd
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