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Re: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk

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  Re: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk Rob Herring <robh@kernel.org> - 2017-02-27 18:20 +0100
    RE: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk "Y.T. Tang" <yuantian.tang@nxp.com> - 2017-03-01 02:50 +0100

#1588822 — Re: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk

On Wed, Feb 15, 2017 at 01:47:35PM +0800, yuantian.tang@nxp.com wrote:
> From: Tang Yuantian <Yuantian.Tang@nxp.com>
> 
> ls1012a has separate input root clocks for core PLLs versus the platform
> PLL, with the latter described as sysclk in the hw docs.
> Update the qoriq-clock binding to allow a second input clock, named
> "coreclk".  If present, this clock will be used for the core PLLs.
> 
> Signed-off-by: Scott Wood <oss@buserror.net>
> Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com>
> ---
>  Documentation/devicetree/bindings/clock/qoriq-clock.txt | 6 ++++++
>  1 file changed, 6 insertions(+)

The change looks fine, but sounds like Scott should remain the author 
(or agree he shouldn't be).

> 
> diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> index df9cb5a..97a9666 100644
> --- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> +++ b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> @@ -55,6 +55,11 @@ Optional properties:
>  - clocks: If clock-frequency is not specified, sysclk may be provided
>  	as an input clock.  Either clock-frequency or clocks must be
>  	provided.
> +	A second input clock, called "coreclk", may be provided if
> +	core PLLs are based on a different input clock from the
> +	platform PLL.
> +- clock-names: Required if a coreclk is present.  Valid names are
> +	"sysclk" and "coreclk".
>  
>  2. Clock Provider
>  
> @@ -71,6 +76,7 @@ second cell is the clock index for the specified type.
>  	2	hwaccel		index (n in CLKCGnHWACSR)
>  	3	fman		0 for fm1, 1 for fm2
>  	4	platform pll	0=pll, 1=pll/2, 2=pll/3, 3=pll/4
> +	5	coreclk		must be 0
>  
>  3. Example
>  
> -- 
> 2.1.0.27.g96db324
> 

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#1589935

Hi Rob,

> -----Original Message-----
> From: Rob Herring [mailto:robh@kernel.org]
> Sent: Tuesday, February 28, 2017 1:19 AM
> To: Y.T. Tang <yuantian.tang@nxp.com>
> Cc: mturquette@baylibre.com; sboyd@codeaurora.org;
> mark.rutland@arm.com; linux-clk@vger.kernel.org;
> devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; Scott Wood <oss@buserror.net>
> Subject: Re: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk
> 
> On Wed, Feb 15, 2017 at 01:47:35PM +0800, yuantian.tang@nxp.com wrote:
> > From: Tang Yuantian <Yuantian.Tang@nxp.com>
> >
> > ls1012a has separate input root clocks for core PLLs versus the
> > platform PLL, with the latter described as sysclk in the hw docs.
> > Update the qoriq-clock binding to allow a second input clock, named
> > "coreclk".  If present, this clock will be used for the core PLLs.
> >
> > Signed-off-by: Scott Wood <oss@buserror.net>
> > Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com>
> > ---
> >  Documentation/devicetree/bindings/clock/qoriq-clock.txt | 6 ++++++
> >  1 file changed, 6 insertions(+)
> 
> The change looks fine, but sounds like Scott should remain the author (or
> agree he shouldn't be).
> 
Sure, please make Scott the author and apply this patch set.

Regards,
Yuantian

> >
> > diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> > b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> > index df9cb5a..97a9666 100644
> > --- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> > +++ b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
> > @@ -55,6 +55,11 @@ Optional properties:
> >  - clocks: If clock-frequency is not specified, sysclk may be provided
> >  	as an input clock.  Either clock-frequency or clocks must be
> >  	provided.
> > +	A second input clock, called "coreclk", may be provided if
> > +	core PLLs are based on a different input clock from the
> > +	platform PLL.
> > +- clock-names: Required if a coreclk is present.  Valid names are
> > +	"sysclk" and "coreclk".
> >
> >  2. Clock Provider
> >
> > @@ -71,6 +76,7 @@ second cell is the clock index for the specified type.
> >  	2	hwaccel		index (n in CLKCGnHWACSR)
> >  	3	fman		0 for fm1, 1 for fm2
> >  	4	platform pll	0=pll, 1=pll/2, 2=pll/3, 3=pll/4
> > +	5	coreclk		must be 0
> >
> >  3. Example
> >
> > --
> > 2.1.0.27.g96db324
> >

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