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From: Lee Jones <lee.jones@linaro.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, kernel@stlinux.com,
	maxime.coquelin@st.com, linux-pm@vger.kernel.org,
	rjw@rjwysocki.net, devicetree@vger.kernel.org,
	ajitpal.singh@st.com
Subject: Re: [PATCH v5 04/11] ARM: STi: STiH407: Provide generic (safe) DVFS configuration
Date: Tue, 8 Dec 2015 15:37:09 +0000	[thread overview]
Message-ID: <20151208153709.GA14604@x1> (raw)
In-Reply-To: <20151208150340.GI3692@ubuntu>

On Tue, 08 Dec 2015, Viresh Kumar wrote:

> On 08-12-15, 14:31, Lee Jones wrote:
> > diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
> > index 81f8121..9fa1e58 100644
> > --- a/arch/arm/boot/dts/stih407-family.dtsi
> > +++ b/arch/arm/boot/dts/stih407-family.dtsi
> > @@ -22,15 +22,29 @@
> >  			device_type = "cpu";
> >  			compatible = "arm,cortex-a9";
> >  			reg = <0>;
> > +
> >  			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
> >  			cpu-release-addr = <0x94100A4>;
> > +
> > +					 /* kHz     uV   */
> > +			operating-points = <1500000 0
> > +					    1200000 0
> > +					    800000  0
> > +					    500000  0>;
> >  		};
> >  		cpu@1 {
> >  			device_type = "cpu";
> >  			compatible = "arm,cortex-a9";
> >  			reg = <1>;
> > +
> >  			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
> >  			cpu-release-addr = <0x94100A4>;
> > +
> > +					 /* kHz     uV   */
> > +			operating-points = <1500000 0
> > +					    1200000 0
> > +					    800000  0
> > +					    500000  0>;
> 
> Why didn't you move to opp-v2 ?
 
Because we can't guarantee that the system was booted with a
bootloader which supports opp-v2.  This is the fall-back
configuration.  Please continue through the set.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

WARNING: multiple messages have this Message-ID (diff)
From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 04/11] ARM: STi: STiH407: Provide generic (safe) DVFS configuration
Date: Tue, 8 Dec 2015 15:37:09 +0000	[thread overview]
Message-ID: <20151208153709.GA14604@x1> (raw)
In-Reply-To: <20151208150340.GI3692@ubuntu>

On Tue, 08 Dec 2015, Viresh Kumar wrote:

> On 08-12-15, 14:31, Lee Jones wrote:
> > diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
> > index 81f8121..9fa1e58 100644
> > --- a/arch/arm/boot/dts/stih407-family.dtsi
> > +++ b/arch/arm/boot/dts/stih407-family.dtsi
> > @@ -22,15 +22,29 @@
> >  			device_type = "cpu";
> >  			compatible = "arm,cortex-a9";
> >  			reg = <0>;
> > +
> >  			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
> >  			cpu-release-addr = <0x94100A4>;
> > +
> > +					 /* kHz     uV   */
> > +			operating-points = <1500000 0
> > +					    1200000 0
> > +					    800000  0
> > +					    500000  0>;
> >  		};
> >  		cpu at 1 {
> >  			device_type = "cpu";
> >  			compatible = "arm,cortex-a9";
> >  			reg = <1>;
> > +
> >  			/* u-boot puts hpen in SBC dmem at 0xa4 offset */
> >  			cpu-release-addr = <0x94100A4>;
> > +
> > +					 /* kHz     uV   */
> > +			operating-points = <1500000 0
> > +					    1200000 0
> > +					    800000  0
> > +					    500000  0>;
> 
> Why didn't you move to opp-v2 ?
 
Because we can't guarantee that the system was booted with a
bootloader which supports opp-v2.  This is the fall-back
configuration.  Please continue through the set.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org ? Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

  reply	other threads:[~2015-12-08 15:37 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-08 14:31 [PATCH v5 00/11] cpufreq: Introduce ST's CPUFreq driver Lee Jones
2015-12-08 14:31 ` Lee Jones
2015-12-08 14:31 ` Lee Jones
2015-12-08 14:31 ` [PATCH v5 01/11] ARM: multi_v7_defconfig: Enable ST's PWM driver Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31 ` [PATCH v5 02/11] ARM: multi_v7_defconfig: Enable ST's Power Reset driver Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31 ` [PATCH v5 03/11] ARM: multi_v7_defconfig: Enable support for PWM Regulators Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31 ` [PATCH v5 04/11] ARM: STi: STiH407: Provide generic (safe) DVFS configuration Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 15:03   ` Viresh Kumar
2015-12-08 15:03     ` Viresh Kumar
2015-12-08 15:37     ` Lee Jones [this message]
2015-12-08 15:37       ` Lee Jones
2015-12-08 14:31 ` [PATCH v5 05/11] ARM: STi: STiH407: Provide CPU with clocking information Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:31 ` [PATCH v5 06/11] ARM: STi: STiH407: Link CPU with its voltage supply Lee Jones
2015-12-08 14:31   ` Lee Jones
2015-12-08 14:32 ` [PATCH v5 07/11] ARM: STi: STiH407: Provide CPU with a means to look-up Major number Lee Jones
2015-12-08 14:32   ` Lee Jones
2015-12-08 14:32 ` [PATCH v5 08/11] ARM: STi: Register CPUFreq device Lee Jones
2015-12-08 14:32   ` Lee Jones
2015-12-09  2:39   ` Viresh Kumar
2015-12-09  2:39     ` Viresh Kumar
2015-12-09  9:15   ` Arnd Bergmann
2015-12-09  9:15     ` Arnd Bergmann
2015-12-09  9:19     ` Viresh Kumar
2015-12-09  9:19       ` Viresh Kumar
2015-12-09 11:25     ` Lee Jones
2015-12-09 11:25       ` Lee Jones
2015-12-08 14:32 ` [PATCH v5 09/11] cpufreq: st: Provide runtime initialised driver for ST's platforms Lee Jones
2015-12-08 14:32   ` Lee Jones
2015-12-09  2:57   ` Viresh Kumar
2015-12-09  2:57     ` Viresh Kumar
2015-12-09  2:58     ` Viresh Kumar
2015-12-09  2:58       ` Viresh Kumar
2015-12-08 14:32 ` [PATCH v5 10/11] dt: cpufreq: st: Provide bindings for ST's CPUFreq implementation Lee Jones
2015-12-08 14:32   ` Lee Jones
     [not found]   ` <1449585124-15596-11-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-12-09  3:52     ` Rob Herring
2015-12-09  3:52       ` Rob Herring
2015-12-09  3:52       ` Rob Herring
2015-12-08 14:32 ` [PATCH v5 11/11] MAINTAINERS: Add ST's CPUFreq driver to the STI file list Lee Jones
2015-12-08 14:32   ` Lee Jones

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