lkml.org 
[lkml]   [2019]   [Feb]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH V4 2/2] clk: imx: scu: add cpu frequency scaling support
Date
Hi, Stephen

Best Regards!
Anson Huang

> -----Original Message-----
> From: Stephen Boyd [mailto:sboyd@kernel.org]
> Sent: 2019年2月16日 7:58
> To: devicetree@vger.kernel.org; festevam@gmail.com;
> kernel@pengutronix.de; linux-arm-kernel@lists.infradead.org; linux-
> clk@vger.kernel.org; linux-kernel@vger.kernel.org; mark.rutland@arm.com;
> mturquette@baylibre.com; robh+dt@kernel.org; s.hauer@pengutronix.de;
> shawnguo@kernel.org; viresh.kumar@linaro.org; Aisheng Dong
> <aisheng.dong@nxp.com>; Anson Huang <anson.huang@nxp.com>; Daniel
> Baluta <daniel.baluta@nxp.com>
> Cc: dl-linux-imx <linux-imx@nxp.com>
> Subject: Re: [PATCH V4 2/2] clk: imx: scu: add cpu frequency scaling support
>
> Quoting Anson Huang (2019-02-13 17:54:08)
> > 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>
>
> Unless you wanted me to pick this patch up into clk-next?

Yes, please, we want to support cpu-freq scaling in Linux next tree ASAP.

Thanks,
Anson.
\
 
 \ /
  Last update: 2019-02-16 01:42    [W:0.075 / U:47.024 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site