linux-kernel - Re: [PATCH v3 1/5] arm64: dts: exynos5433: TM2/E: Fix wrong information of ldo23 and ldo25

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Date:   Fri, 6 Jan 2017 11:12:44 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Chanwoo Choi <cw00.choi@...sung.com>
Cc:     Krzysztof Kozlowski <krzk@...nel.org>,
        Jaechul Lee <jcsing.lee@...sung.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Kukjin Kim <kgene@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Andi Shyti <andi.shyti@...sung.com>, beomho.seo@...sung.com,
        galaxyra@...il.com, linux-arm-kernel@...ts.infradead.org,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v3 1/5] arm64: dts: exynos5433: TM2/E: Fix wrong
 information of ldo23 and ldo25

On Fri, Jan 06, 2017 at 06:06:43PM +0900, Chanwoo Choi wrote:
> On 2017년 01월 06일 17:50, Krzysztof Kozlowski wrote:
> > On Fri, Jan 06, 2017 at 04:20:52PM +0900, Chanwoo Choi wrote:
> >> On 2017년 01월 06일 16:05, Krzysztof Kozlowski wrote:
> >>> On Fri, Jan 06, 2017 at 12:59:05PM +0900, Jaechul Lee wrote:
> >>>> From: Chanwoo Choi <cw00.choi@...sung.com>
> >>>>
> >>>> This patch fixes the wrong information of ldo23 and ldo25 on both TM2 and TM2E.
> >>>
> >>> Please describe what is exactly wrong and how it affects the
> >>> system/user. This is going to the fixes so it needs a good explanation.
> >>
> >> When I posted the patch[1], I refer to the old schematic document of both TM2 and TM2E.
> >> [1] 01e5d2352152 ("arm64: dts: exynos: Add dts file for Exynos5433-based TM2 board")
> >>
> >> After checking the highest version of schematic document of both TM2 and TM2E,
> >> there is no difference of ldo23/ldo25 on both TM2 and TM2E.
> >> - ldo23 is used on TM2/TM2E, but the name/max-microvolt are wrong. 
> >> - ldo25 isn't used on TM2/TM2E. (not connected)
> >>
> >> Because ldo23 and lod25 are not used on other device in Exynos5433 and TM2 board.
> >> this patch does not affect the operation to system/user.
> > 
> > If it does not affect anyone (including TM2/TM2E) then this do not have
> > to be a fix. Am I right?
> 
> This patch does not affect the TM2/TM2E's operation
> because ldo23/25 are not used on TM2/TM2E. Just fix the wrong information.

Ah, okay, thanks for explanation. Please just rebase on current
next/dt64 (or for-next or just my
https://patchwork.kernel.org/patch/9500153/) so the always-off property
won't be copied.

I'll take it then for v4.11.

Best regards,
Krzysztof