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SubjectRe: [PATCH V6 2/2] clk: imx: scu: add cpu frequency scaling support
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Quoting Anson Huang (2019-02-14 01:55:57)
> On NXP's i.MX SoCs with system controller inside, CPU frequency
> scaling can ONLY be done by system controller firmware, and it
> can ONLY be requested from secure mode, so Linux kernel has to
> call ARM SMC to trap to ARM-Trusted-Firmware to request system
> controller firmware to do CPU frequency scaling.
>
> This patch adds i.MX system controller CPU frequency scaling support,
> it reuses cpufreq-dt driver and implement the CPU frequency scaling
> inside SCU clock driver.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> ---

Acked-by: Stephen Boyd <sboyd@kernel.org>

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