Re: [PATCH 0/4] Add the OTP gpio pinctrl to fix the TSHUT issue

From	Caesar Wang <caesar.upstream@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 0/4] Add the OTP gpio pinctrl to fix the TSHUT issue
Date	2015-10-20 11:20 +0200
Message-ID	<qlBfl-7L2-21@gated-at.bofh.it> (permalink)
References	<qlBfk-7L2-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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The subject is deleted by my finger.

在 2015年10月20日 17:11, Caesar Wang 写道:
> We need the OTP pin is gpio state before resetting the TSADC controller,
> since the tshut polarity will generate a high signal.
>
> Says:
> The TSHUT temperature is setting more than 80 degree, the default
> tshut polarity is HIGH.
>
> If T > 80C, the OTP output the High Signal.
> If T < 80C, the OTP output the Low Signal.
>
> On the moment, the TSADC controller is reset, the tshut polarity will be
> Low in a short period of time.
>
> So:
> If T < 80C, the OTP output the High Signal.
> If T > 80C, 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.
>
> Tested on box board.
>
>
>
> Caesar Wang (4):
>    dt-bindings: Sync the dts to this document
>    thermal: rockchip: ensure the otp state before resetting the
>      controller
>    thermal: rockchip: change the TSHUT default state
>    ARM: dts: rockchip: Add the OTP gpio pinctrl
>
>   .../bindings/thermal/rockchip-thermal.txt          |  5 ++--
>   arch/arm/boot/dts/rk3288.dtsi                      |  9 ++++--
>   drivers/thermal/rockchip_thermal.c                 | 34 +++++++++++++++++++++-
>   3 files changed, 43 insertions(+), 5 deletions(-)
>

-- 
Thanks,
Caesar

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Thread

[PATCH 0/4]  Caesar Wang <wxt@rock-chips.com> - 2015-10-20 11:20 +0200
  [PATCH 1/4] dt-bindings: Sync the dts to this document Caesar Wang <wxt@rock-chips.com> - 2015-10-20 11:20 +0200
  Re: [PATCH 0/4] Add the OTP gpio pinctrl to fix the TSHUT issue Caesar Wang <caesar.upstream@gmail.com> - 2015-10-20 11:20 +0200
  [PATCH 3/4] thermal: rockchip: change the TSHUT default state Caesar Wang <wxt@rock-chips.com> - 2015-10-20 11:20 +0200
    Re: [PATCH 3/4] thermal: rockchip: change the TSHUT default state Doug Anderson <dianders@chromium.org> - 2015-10-20 18:10 +0200
      Re: [PATCH 3/4] thermal: rockchip: change the TSHUT default state Caesar Wang <caesar.upstream@gmail.com> - 2015-10-21 04:20 +0200
      Re: [PATCH 3/4] thermal: rockchip: change the TSHUT default state Doug Anderson <dianders@chromium.org> - 2015-10-21 04:20 +0200
  [PATCH 2/4] thermal: rockchip: ensure the otp state before resetting the controller Caesar Wang <wxt@rock-chips.com> - 2015-10-20 11:20 +0200
    Re: [PATCH 2/4] thermal: rockchip: ensure the otp state before  resetting the controller Doug Anderson <dianders@chromium.org> - 2015-10-20 18:00 +0200
      Re: [PATCH 2/4] thermal: rockchip: ensure the otp state before  resetting the controller Caesar Wang <caesar.upstream@gmail.com> - 2015-10-21 03:50 +0200
        Re: [PATCH 2/4] thermal: rockchip: ensure the otp state before  resetting the controller Linus Walleij <linus.walleij@linaro.org> - 2015-10-27 11:30 +0100
  [PATCH 4/4] ARM: dts: rockchip: Add the OTP gpio pinctrl Caesar Wang <wxt@rock-chips.com> - 2015-10-20 11:20 +0200

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