[PATCH v4 5/5] clk: scmi: Support Spread Spectrum for NXP i.MX95

[Peng Fan]

Hi Sebin,

> Subject: Re: [PATCH v4 5/5] clk: scmi: Support Spread Spectrum for
> NXP i.MX95
> 
> > --- a/include/linux/scmi_protocol.h
> > +++ b/include/linux/scmi_protocol.h
> > @@ -80,9 +80,14 @@ enum scmi_clock_oem_config {
> >       SCMI_CLOCK_CFG_DUTY_CYCLE = 0x1,
> >       SCMI_CLOCK_CFG_PHASE,
> >       SCMI_CLOCK_CFG_OEM_START = 0x80,
> > +     SCMI_CLOCK_CFG_IMX_SSC = 0x80,
> 
> TI is also planning to implement the same in our upcoming platform. so
> can we use a generic ID instead of vender specfic message ID?

I tried to push to new generic ID [1] in half a year ago, but in the end ARM
decided not to add generic ID for spread spectrum support.

To i.MX, it is too late to use a generic ID and waiting spec, i.MX firmware
has been public for quite some time and passed several external releases.
So I need to use what our firmware adds and spec allows: vendor
extension.

[1] https://lore.kernel.org/arm-scmi/Z8iKErarE0lHWxEy@pluto/

Regards,
Peng.