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From: Anson Huang <anson.huang@nxp.com>
To: Stephen Boyd <sboyd@kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"festevam@gmail.com" <festevam@gmail.com>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"mturquette@baylibre.com" <mturquette@baylibre.com>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"viresh.kumar@linaro.org" <viresh.kumar@linaro.org>,
	Aisheng Dong <aisheng.dong@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
Date: Sat, 16 Feb 2019 00:41:24 +0000	[thread overview]
Message-ID: <DB3PR0402MB3916D80AEC3CEEC6F6A8C394F5610@DB3PR0402MB3916.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <155027509324.115909.9001648696808985832@swboyd.mtv.corp.google.com>

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.

  reply	other threads:[~2019-02-16  0:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-14  1:54 [PATCH V4 1/2] arm64: dts: freescale: imx8qxp: add cpu opp table Anson Huang
2019-02-14  1:54 ` [PATCH V4 2/2] clk: imx: scu: add cpu frequency scaling support Anson Huang
2019-02-15 23:58   ` Stephen Boyd
2019-02-16  0:41     ` Anson Huang [this message]
2019-02-21 20:48   ` Stephen Boyd
2019-02-22  2:34     ` Anson Huang
2019-02-14  7:12 ` [PATCH V4 1/2] arm64: dts: freescale: imx8qxp: add cpu opp table Viresh Kumar
2019-02-14  7:18   ` Anson Huang

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