[PATCH v1 5/5] riscv: dts: microchip: add a device tree for Discovery Kit

Conor Dooley conor at kernel.org
Tue Sep 2 09:38:44 PDT 2025


On Tue, Sep 02, 2025 at 03:47:56PM +0200, Krzysztof Kozlowski wrote:
> On 02/09/2025 10:31, Conor Dooley wrote:
> > On Tue, Sep 02, 2025 at 08:22:02AM +0200, Krzysztof Kozlowski wrote:
> > 
> >>>>> +     refclk_ccc: cccrefclk {
> >>>>
> >>>> Please use name for all fixed clocks which matches current format
> >>>> recommendation: 'clock-<freq>' (see also the pattern in the binding for
> >>>> any other options).
> >>>>
> >>>> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/clock/fixed-clock.yaml
> >>> The fabric dtsi describes elements configured by the FPGA bitstream. 
> >>> This node is named as such because the Clock Conditioner Circuit CCC's 
> >>> reference clock source is set by the FPGA bitstream, while its frequency 
> >>> is determined by an on-board oscillator.
> >>>
> >>> Hope this clarifies the rationale behind the node name.
> >> No, because there is no style naming clocks like this. Neither proper
> >> suffix, nor prefix. Use standard naming.
> > 
> > So you want all fixed frequency clocks to be named "clk-foo" when
> > "clk-<freq>" is not suitable? Fine if you do, but I didn't realise that
> > it was required and haven't been keeping an eye out for it.
> 
> Recommended is to just use consistent suffixes or prefixes. Binding asks
> for "clock-" so that's what I propose to use here.

Okay, I'll keep that in mind. 
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