linux-kernel - Re: [PATCH 1/2] DTS: dra7: Replace obsolete "operating-points" property with "operating-points-v2"

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Date:   Fri, 3 Feb 2017 10:54:54 -0600
From:   Dave Gerlach <d-gerlach@...com>
To:     Lukasz Majewski <lukma@...x.de>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Tony Lindgren <tony@...mide.com>,
        Benoît Cousson <bcousson@...libre.com>,
        Russell King <linux@...linux.org.uk>,
        Viresh Kumar <viresh.kumar@...aro.org>
CC:     <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Kishon Vijay Abraham I <kishon@...com>
Subject: Re: [PATCH 1/2] DTS: dra7: Replace obsolete "operating-points"
 property with "operating-points-v2"

Hi,
On 02/03/2017 09:24 AM, Lukasz Majewski wrote:
> The "operating-points" property have been replaced with
> "operating-points-v2". Only entries with the same frequencies have
> been added, so no reqression should be introduced.
>
> Signed-off-by: Lukasz Majewski <lukma@...x.de>
> ---
>  arch/arm/boot/dts/dra7.dtsi | 22 +++++++++++++++++-----
>  1 file changed, 17 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
> index 3c228f9..a860a56 100644
> --- a/arch/arm/boot/dts/dra7.dtsi
> +++ b/arch/arm/boot/dts/dra7.dtsi
> @@ -80,11 +80,7 @@
>  			compatible = "arm,cortex-a15";
>  			reg = <0>;
>
> -			operating-points = <
> -				/* kHz    uV */
> -				1000000	1060000
> -				1176000	1160000
> -				>;
> +			operating-points-v2 = <&cpu0_opp_table>;
>
>  			clocks = <&dpll_mpu_ck>;
>  			clock-names = "cpu";
> @@ -98,6 +94,22 @@
>  		};
>  	};
>
> +	cpu0_opp_table: opp_table0 {
> +		compatible = "operating-points-v2";
> +		opp-shared;
> +
> +		opp_nom@...0000000 {
> +			opp-hz = /bits/ 64 <1000000000>;
> +			opp-microvolt = <1060000 850000 1150000>;
> +			opp-suspend;
> +		};
> +
> +		opp_od@...6000000 {
> +			opp-hz = /bits/ 64 <1176000000>;
> +			opp-microvolt = <1160000 885000 1160000>;
> +		};
> +	};
> +

This is being done here already [1] as these OPPs have specific requirements 
depending on the SoC in use. I have sent proper operating-points-v2 tables here 
[2] already, they won't be ready to merge until after the driver at [1] is merged.

Regards,
Dave

[1] http://www.spinics.net/lists/devicetree/msg158967.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2016-May/430209.html

>  	/*
>  	 * The soc node represents the soc top level view. It is used for IPs
>  	 * that are not memory mapped in the MPU view or for the MPU itself.
>