Messages in this thread | | | Date | Wed, 6 Sep 2017 12:47:49 -0700 | From | Nicolin Chen <> | Subject | Re: [PATCH] sound: soc: fsl: Do not set DAI sysclk when it is equal to system freq |
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On Wed, Sep 06, 2017 at 08:35:50PM +0200, Łukasz Majewski wrote:
> clocks = <&clks IMX6QDL_CLK_SSI2_IPG>, > <&clks IMX6QDL_CLK_SSI2>; > clock-names = "ipg", "baud";
> >> dailink_master: cpu { > >> sound-dai = <&ssi2>; > >> clock = <&SSSS>; > > If possible I do prefer a solution, which uses only DTS. > Side question - how to refer to baud clock from [1]?
Just add a property to this cpu node like: clock = <&clks IMX6QDL_CLK_SSI2>;
> >> system-clock-frequency = <XXXX>;
This would not be necessary unless you want to specify a clock rate so as to override the clock rate configuration in hw_params().
> >This is the right solution based on current simple-card driver. For > >SSI (having two clocks), you have to specify the baud clock in the > >cpu node like that. I believe this is what the simple-card designer > >expected users to do since the cpu node is the first place that the > >driver tries to look at. > > I will give a shoot the option with adding the ipg clock.
No, not ipg clock. You should use the second clock -- baud clock.
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