linux-kernel - [BUG] [PATCH v5 02/10] mfd: mt6397: extract irq related code from core driver

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Message-ID: <trinity-1f82bff1-535e-47cd-9a2f-8faccb56e356-1566562433314@3c-app-gmx-bs11>
Date:   Fri, 23 Aug 2019 14:13:53 +0200
From:   "Frank Wunderlich" <frank-w@...lic-files.de>
To:     "Hsin-Hsiung Wang" <hsin-hsiung.wang@...iatek.com>
Cc:     "Lee Jones" <lee.jones@...aro.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        "Mark Brown" <broonie@...nel.org>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        "Alexandre Belloni" <alexandre.belloni@...tlin.com>,
        "Mark Rutland" <mark.rutland@....com>,
        "Alessandro Zummo" <a.zummo@...ertech.it>,
        srv_heupstream@...iatek.com, devicetree@...r.kernel.org,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Kate Stewart" <kstewart@...uxfoundation.org>,
        "Sean Wang" <sean.wang@...iatek.com>,
        "Liam Girdwood" <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org,
        "Richard Fontana" <rfontana@...hat.com>,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        "Thomas Gleixner" <tglx@...utronix.de>,
        "Eddie Huang" <eddie.huang@...iatek.com>,
        "Hsin-Hsiung Wang" <hsin-hsiung.wang@...iatek.com>,
        linux-rtc@...r.kernel.org,
        "René van Dorst" <opensource@...rst.com>
Subject: [BUG] [PATCH v5 02/10] mfd: mt6397: extract irq related code from
 core driver

Hi,

this commit breaks mt6323 pmic on BananaPi-R2

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a4872e80ce7d2a1844328176dbf279d0a2b89bdb

resulting in this message in dmesg:

mt6397 1000d000.pwrap:mt6323: unsupported chip: 0x0
and multiple
mtk-cpufreq mtk-cpufreq: failed to initialize dvfs info for cpu0

see discussion here:
http://lists.infradead.org/pipermail/linux-mediatek/2019-August/022505.html

after reverting this one the errors are gone, please provide a fix

regards Frank


> Gesendet: Freitag, 23. August 2019 um 05:45 Uhr
> Von: "Hsin-Hsiung Wang" <hsin-hsiung.wang@...iatek.com>
> Betreff: [PATCH v5 02/10] mfd: mt6397: extract irq related code from core driver
>
> In order to support different types of irq design, we decide to add
> separate irq drivers for different design and keep mt6397 mfd core
> simple and reusable to all generations of PMICs so far.
>
> Acked-for-mfd-by: Lee Jones <lee.jones@...aro.org>
> Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>
> ---
>  drivers/mfd/Makefile            |   3 +-
>  drivers/mfd/mt6397-core.c       | 146 --------------------------------
>  drivers/mfd/mt6397-irq.c        | 181 ++++++++++++++++++++++++++++++++++++++++
>  include/linux/mfd/mt6397/core.h |   9 ++
>  4 files changed, 192 insertions(+), 147 deletions(-)
>  create mode 100644 drivers/mfd/mt6397-irq.c