linux-kernel - Re: [PATCH v6 0/6] clk: Support spread spectrum and use it in clk-scmi

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Message-ID: <e547db61-1ce3-4b55-948d-28d3257d68ba@ti.com>
Date: Tue, 23 Dec 2025 17:32:46 +0530
From: Sebin Francis <sebin.francis@...com>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>, Michael Turquette
	<mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, Rob Herring
	<robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
	<conor+dt@...nel.org>, Sudeep Holla <sudeep.holla@....com>, Cristian Marussi
	<cristian.marussi@....com>, Brian Masney <bmasney@...hat.com>
CC: <linux-kernel@...r.kernel.org>, <linux-clk@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <arm-scmi@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH v6 0/6] clk: Support spread spectrum and use it in
 clk-scmi

Hi Peng,

On 28/11/25 08:44, Peng Fan (OSS) wrote:
> Since the assigned-clock-sscs property [1] has been accepted into the device
> tree schema, we can now support it in the Linux clock driver. Therefore,
> I've picked up the previously submitted work [2] titled "clk: Support
> spread spectrum and use it in clk-pll144x and clk-scmi."
> As more than six months have passed since [2] was posted, I’m treating this
> patchset as a new submission rather than a v3.
> 
> - Introduce clk_set_spread_spectrum to set the parameters for enabling
>    spread spectrum of a clock.
> - Parse 'assigned-clock-sscs' and configure it by default before using the
>    clock. This property is parsed before parsing clock rate.
> - Enable this feature for clk-scmi on i.MX95.
> 
> Because SCMI spec will not include spread spectrum as a standard
> extension, we still need to use NXP i.MX OEM extension.
> 
> [1] https://github.com/devicetree-org/dt-schema/pull/154
> [2] https://lore.kernel.org/all/20250205-clk-ssc-v2-0-fa73083caa92@nxp.com/
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---

Thanks for incorporating the changes, The changes looks good to me!

Reviewed-by: Sebin Francis <sebin.francis@...com>

---

Thanks
Sebin