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From:   Krzysztof Kozlowski <krzk@kernel.org>
Date:   Tue, 16 Oct 2018 17:09:14 +0200
Message-ID: <CAJKOXPe4Jf3QVbQ6BFPFptkgvmmpNu+QCmDoD3JqhyYOidJ7vA@mail.gmail.com>
Subject: Re: [PATCH 06/11] DT: arm64: exynos: add support for thermal trip irq-mode
To:     l.luba@partner.samsung.com
Cc:     devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-pm@vger.kernel.org, rui.zhang@intel.com, edubezval@gmail.com,
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        mark.rutland@arm.com, corbet@lwn.net,
        =?UTF-8?B?QmFydMWCb21pZWogxbtvxYJuaWVya2lld2ljeg==?= 
        <b.zolnierkie@samsung.com>, kgene@kernel.org
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On Tue, 16 Oct 2018 at 16:56, Lukasz Luba <l.luba@partner.samsung.com> wrote:
>

Hi Lukasz,

Thanks for patches.

I did not receive the first patches in the series. It is okay (depends
on the context) but in such case sending cover letter to all people is
quite useful. It helps to understand the entire patchset. Since I did
not get them, I really do not know:
1. Whether DTS patches are independent?
2. How this fits in the big picture of Exynos thermal?


> This patch adds support for new flash which indicates

What is "flash"?

Please wrap your lines accordingly (75 characters like in
submitting-patches.rst). Current wrapping makes it more difficult to
read.

> that trip point triggers irq when temperature is met.
> Exynos5433 supports 8 trip point which will trigger irq.

"Exynos5433 supports 8 trip points which trigger interrupt."
(or IRQ but not irq)

> Above that number other trip points should be registered
> without 'irq-mode' flag.

Why they should be registered without irq-mode?

> That will force the thermal framework to start polling
> the temperature sensor under configured conditions and
> handle the trip point.

How does it fit into existing polling mode?

>
> Cc: Kukjin Kim <kgene@kernel.org>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
> ---
>  arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi | 105 ++++++++++++++++---------
>  1 file changed, 70 insertions(+), 35 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
> index fe3a0b1..c4330f6 100644
> --- a/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
> +++ b/arch/arm64/boot/dts/exynos/exynos5433-tmu.dtsi
> @@ -17,37 +17,44 @@ thermal-zones {
>                         atlas0_alert_0: atlas0-alert-0 {
>                                 temperature = <65000>;  /* millicelsius */
>                                 hysteresis = <1000>;    /* millicelsius */
> -                               type = "active";
> +                               type = "passive";

Change of active->passive looks irrelevant to this topic. Here and
everywhere else.

Best regards,
Krzysztof