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Re: [PATCH v2 1/2] dt-bindings: Add the "init" pinctrl in this document

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在 2015年10月22日 09:34, Rob Herring 写道:
> On Wed, Oct 21, 2015 at 8:25 PM, Caesar Wang <wxt@rock-chips.com> wrote:
>> The "init" pinctrl is defined we'll set
>> pinctrl to this state before probe and then "default" after probe.
>>
>> Add the "init" pinctrl as the OTP gpio state, since we need switch
>> the pin to gpio state before the TSADC controller is reset.
>>
>> As I know, the TSADC controller is reset, the tshut polarity will be
>> a *low* signal in a short period of time for some devices.
>>
>> Says:
>> The TSADC get the temperature on rockchip thermal.
>>
>> If T(current temperature) < (setting temperature), the OTP output the
>> *high* signal.
>> If T(current temperature) > (setting temperature), the OTP output the
>> *low* Signal.
>>
>> In some cases, the OTP pin is connected to the PMIC, maybe the
>> PMIC can accept the reset response time to avoid this issue.
>>
>> In other words, the system will be always reboot if we make the
>> OTP pin is connected the others IC to control the power.
>>
>> Signed-off-by: Caesar Wang <wxt@rock-chips.com>
>> Reviewed-by: Douglas Anderson <dianders@chromium.org>
>> ---
>>
>> Changes in v2:
>>    - As the Rob comments, add the 'init' pinctrl more decription in document.
> Where?

Okay,  Mr, Rob
That strictly speaking only in commit.:-(


>
>>    - fix the subject to make more obvious in PATCH[1/2]
>> Series-changes: 1
>>    - As the Doug comments, add the 'init' property to sync document.
>>
>> Changes in v1: None
>>
>>   Documentation/devicetree/bindings/thermal/rockchip-thermal.txt | 5 +++--
>>   1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>> index ef802de..28e84f7 100644
>> --- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>> +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>> @@ -27,8 +27,9 @@ tsadc: tsadc@ff280000 {
>>          clock-names = "tsadc", "apb_pclk";
>>          resets = <&cru SRST_TSADC>;
>>          reset-names = "tsadc-apb";
>> -       pinctrl-names = "default";
>> -       pinctrl-0 = <&otp_out>;
>> +       pinctrl-names = "init", "default";
>> +       pinctrl-0 = <&otp_gpio>;
>> +       pinctrl-1 = <&otp_out>;
>>          #thermal-sensor-cells = <1>;
>>          rockchip,hw-tshut-temp = <95000>;
>>          rockchip,hw-tshut-mode = <0>;
>> --
>> 1.9.1
>>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip


-- 
Thanks,
Caesar

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[PATCH v2 0/2] fix the TSHUT issue on rockchip thermal Caesar Wang <wxt@rock-chips.com> - 2015-10-22 03:30 +0200
  [PATCH v2 2/2] ARM: dts: rockchip: Add the OTP gpio pinctrl Caesar Wang <wxt@rock-chips.com> - 2015-10-22 03:30 +0200
  [PATCH v2 1/2] dt-bindings: Add the "init" pinctrl in this document Caesar Wang <wxt@rock-chips.com> - 2015-10-22 03:30 +0200
    Re: [PATCH v2 1/2] dt-bindings: Add the "init" pinctrl in this document Rob Herring <robh+dt@kernel.org> - 2015-10-22 03:40 +0200
      Re: [PATCH v2 1/2] dt-bindings: Add the "init" pinctrl in this  document Caesar Wang <caesar.upstream@gmail.com> - 2015-10-22 03:50 +0200

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