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Message-ID: <57B2B659.504@codeaurora.org>
Date: Tue, 16 Aug 2016 12:14:41 +0530
From: Rajendra Nayak <rnayak@...eaurora.org>
To: Rob Herring <robh@...nel.org>
CC: andy.gross@...aro.org, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/5] arm: dts: apq8064: Add thermal zones, tsens and
qfprom nodes
On 08/12/2016 11:43 PM, Rob Herring wrote:
> On Wed, Aug 10, 2016 at 12:13:56PM +0530, Rajendra Nayak wrote:
>> TSENS is part of GCC, hence add TSENS properties as part of GCC node.
>> Also add thermal zones and qfprom nodes.
>> Update GCC bindings doc to mention the possibility of optional TSENS
>> properties that can be part of GCC node.
>>
>> Acked-by: Eduardo Valentin <edubezval@...il.com>
>> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
>> ---
>> .../devicetree/bindings/clock/qcom,gcc.txt | 18 ++++
>> arch/arm/boot/dts/qcom-apq8064.dtsi | 103 +++++++++++++++++++++
>> 2 files changed, 121 insertions(+)
>
> A couple of nits, otherwise:
>
> Acked-by: Rob Herring <robh@...nel.org>
Thanks Rob, I will fix the ones below and respin.
>
>>
>> diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
>> index 9a60fde..16e2f84 100644
>> --- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt
>> +++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
>> @@ -23,6 +23,13 @@ Required properties :
>> Optional properties :
>> - #power-domain-cells : shall contain 1
>>
>> +Optional properties:
>
> It already has this section above.
>
>> +- Qualcomm TSENS (thermal sensor device) on some devices can
>> +be part of GCC and hence the TSENS properties can also be
>> +part of the GCC/clock-controller node.
>> +For more details on the TSENS properties please refer
>> +Documentation/devicetree/bindings/thermal/qcom-tsens.txt
>> +
>> Example:
>> clock-controller@...000 {
>> compatible = "qcom,gcc-msm8960";
>> @@ -31,3 +38,14 @@ Example:
>> #reset-cells = <1>;
>> #power-domain-cells = <1>;
>> };
>> +
>> +Example of GCC with TSENS properties:
>> + clock-controller@...000 {
>> + compatible = "qcom,gcc-apq8064";
>> + reg = <0x00900000 0x4000>;
>> + nvmem-cells = <&tsens_calib>, <&tsens_backup>;
>> + nvmem-cell-names = "calib", "calib_backup";
>> + #clock-cells = <1>;
>> + #reset-cells = <1>;
>> + #thermal-sensor-cells = <1>;
>> + };
>> diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
>> index 74a9b6c..9cd13ab 100644
>> --- a/arch/arm/boot/dts/qcom-apq8064.dtsi
>> +++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
>> @@ -86,6 +86,92 @@
>> };
>> };
>>
>> + thermal-zones {
>> + cpu-thermal0 {
>> + polling-delay-passive = <250>;
>> + polling-delay = <1000>;
>> +
>> + thermal-sensors = <&gcc 7>;
>> + coefficients = <1199 0>;
>> +
>> + trips {
>> + cpu_alert0: trip0 {
>> + temperature = <75000>;
>> + hysteresis = <2000>;
>> + type = "passive";
>> + };
>> + cpu_crit0: trip1 {
>> + temperature = <110000>;
>> + hysteresis = <2000>;
>> + type = "critical";
>> + };
>> + };
>> + };
>> +
>> + cpu-thermal1 {
>> + polling-delay-passive = <250>;
>> + polling-delay = <1000>;
>> +
>> + thermal-sensors = <&gcc 8>;
>> + coefficients = <1132 0>;
>> +
>> + trips {
>> + cpu_alert1: trip0 {
>> + temperature = <75000>;
>> + hysteresis = <2000>;
>> + type = "passive";
>> + };
>> + cpu_crit1: trip1 {
>> + temperature = <110000>;
>> + hysteresis = <2000>;
>> + type = "critical";
>> + };
>> + };
>> + };
>> +
>> + cpu-thermal2 {
>> + polling-delay-passive = <250>;
>> + polling-delay = <1000>;
>> +
>> + thermal-sensors = <&gcc 9>;
>> + coefficients = <1199 0>;
>> +
>> + trips {
>> + cpu_alert2: trip0 {
>> + temperature = <75000>;
>> + hysteresis = <2000>;
>> + type = "passive";
>> + };
>> + cpu_crit2: trip1 {
>> + temperature = <110000>;
>> + hysteresis = <2000>;
>> + type = "critical";
>> + };
>> + };
>> + };
>> +
>> + cpu-thermal3 {
>> + polling-delay-passive = <250>;
>> + polling-delay = <1000>;
>> +
>> + thermal-sensors = <&gcc 10>;
>> + coefficients = <1132 0>;
>> +
>> + trips {
>> + cpu_alert3: trip0 {
>> + temperature = <75000>;
>> + hysteresis = <2000>;
>> + type = "passive";
>> + };
>> + cpu_crit3: trip1 {
>> + temperature = <110000>;
>> + hysteresis = <2000>;
>> + type = "critical";
>> + };
>> + };
>> + };
>> + };
>> +
>> cpu-pmu {
>> compatible = "qcom,krait-pmu";
>> interrupts = <1 10 0x304>;
>> @@ -611,11 +697,28 @@
>> };
>> };
>>
>> + qfprom: qfprom@...00000 {
>
> Drop leading 0s.
>
>> + compatible = "qcom,qfprom";
>> + reg = <0x00700000 0x1000>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> + tsens_calib: calib {
>> + reg = <0x404 0x10>;
>> + };
>> + tsens_backup: backup_calib {
>> + reg = <0x414 0x10>;
>> + };
>> + };
>> +
>> gcc: clock-controller@...000 {
>> compatible = "qcom,gcc-apq8064";
>> reg = <0x00900000 0x4000>;
>> + nvmem-cells = <&tsens_calib>, <&tsens_backup>;
>> + nvmem-cell-names = "calib", "calib_backup";
>> #clock-cells = <1>;
>> #reset-cells = <1>;
>> + #thermal-sensor-cells = <1>;
>> };
>>
>> lcc: clock-controller@...00000 {
>> --
>> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
>> of Code Aurora Forum, hosted by The Linux Foundation
>>
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