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Date: Fri, 27 Mar 2015 11:32:36 +0530 From: Keerthy <a0393675@...com> To: Nishanth Menon <nm@...com>, <tony@...mide.com>, <bcousson@...libre.com>, <edubezval@...il.com> CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>, <linux-omap@...r.kernel.org>, <j-keerthy@...com>, <t-kristo@...com> Subject: Re: [PATCH V2 1/2] ARM: dts: DRA7: Add bandgap and related thermal nodes On Tuesday 24 March 2015 01:09 AM, Nishanth Menon wrote: > From: Keerthy <j-keerthy@...com> > > Add bandgap and related thermal nodes. The patch adds 5 thermal > sensors. Only one cooling device for mpu as of now. The sensors are > the exact same on both dra72 and dra7. Introduce CPU, GPU, core nodes > for the moment as they are direct reuse of OMAP5 entities. > > NOTE: OMAP4 has a finer counter granularity, which allows for a delay > of 1000ms in the thermal zone polling intervals. DRA7 have different > counter mechanism, which allows at maximum a 500ms timer. Adjust the > cpu thermal zone accordingly for DRA7. > > Signed-off-by: Keerthy <j-keerthy@...com> > [t-kristo@...com: few reuse from OMAP5 entities] > Signed-off-by: Tero Kristo <t-kristo@...com> > Signed-off-by: Nishanth Menon <nm@...com> > --- > Changes since V1: > - omap5-cpu-thermal.dtsi dropped > - approach similar to omap5 > - added core and gpu thermal dtsi(they can be reused) > - Squashed patch #1 from v1 to patch #2 - this patch. > - Not carrying forward ack due to change Thanks for updating Nishanth. Looks good to me. - Keerthy > > V1: http://marc.info/?t=142688102700006&r=1&w=2 > > arch/arm/boot/dts/dra7.dtsi | 23 +++++++++++++++++++++++ > arch/arm/boot/dts/dra72x.dtsi | 5 +++++ > arch/arm/boot/dts/dra74x.dtsi | 5 +++++ > 3 files changed, 33 insertions(+) > > diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi > index eea4a54d6cb3..2d6a7e3e001f 100644 > --- a/arch/arm/boot/dts/dra7.dtsi > +++ b/arch/arm/boot/dts/dra7.dtsi > @@ -177,6 +177,18 @@ > }; > }; > > + bandgap: bandgap@...021e0 { > + reg = <0x4a0021e0 0xc > + 0x4a00232c 0xc > + 0x4a002380 0x2c > + 0x4a0023C0 0x3c > + 0x4a002564 0x8 > + 0x4a002574 0x50>; > + compatible = "ti,dra752-bandgap"; > + interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>; > + #thermal-sensor-cells = <1>; > + }; > + > cm_core_aon: cm_core_aon@...05000 { > compatible = "ti,dra7-cm-core-aon"; > reg = <0x4a005000 0x2000>; > @@ -1419,6 +1431,17 @@ > status = "disabled"; > }; > }; > + > + thermal_zones: thermal-zones { > + #include "omap4-cpu-thermal.dtsi" > + #include "omap5-gpu-thermal.dtsi" > + #include "omap5-core-thermal.dtsi" > + }; > + > +}; > + > +&cpu_thermal { > + polling-delay = <500>; /* milliseconds */ > }; > > /include/ "dra7xx-clocks.dtsi" > diff --git a/arch/arm/boot/dts/dra72x.dtsi b/arch/arm/boot/dts/dra72x.dtsi > index e5a3d23a3df1..6ac8e3601499 100644 > --- a/arch/arm/boot/dts/dra72x.dtsi > +++ b/arch/arm/boot/dts/dra72x.dtsi > @@ -20,6 +20,11 @@ > device_type = "cpu"; > compatible = "arm,cortex-a15"; > reg = <0>; > + > + /* cooling options */ > + cooling-min-level = <0>; > + cooling-max-level = <2>; > + #cooling-cells = <2>; /* min followed by max */ > }; > }; > > diff --git a/arch/arm/boot/dts/dra74x.dtsi b/arch/arm/boot/dts/dra74x.dtsi > index 10173fab1a15..eef981f4bcd5 100644 > --- a/arch/arm/boot/dts/dra74x.dtsi > +++ b/arch/arm/boot/dts/dra74x.dtsi > @@ -31,6 +31,11 @@ > clock-names = "cpu"; > > clock-latency = <300000>; /* From omap-cpufreq driver */ > + > + /* cooling options */ > + cooling-min-level = <0>; > + cooling-max-level = <2>; > + #cooling-cells = <2>; /* min followed by max */ > }; > cpu@1 { > device_type = "cpu"; > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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