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

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Message-ID: <b5a21908-faee-17d1-ce26-99b941c0fa70@gmail.com>
Date:   Fri, 23 Aug 2019 17:42:05 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     frank-w@...lic-files.de, linux-mediatek@...ts.infradead.org,
        Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>
Cc:     Mark Rutland <mark.rutland@....com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        srv_heupstream@...iatek.com, devicetree@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
        Richard Fontana <rfontana@...hat.com>,
        Mark Brown <broonie@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        René van Dorst <opensource@...rst.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Lee Jones <lee.jones@...aro.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        linux-rtc@...r.kernel.org
Subject: Re: [BUG] [PATCH v5 02/10] mfd: mt6397: extract irq related code from
 core driver



On 23/08/2019 17:26, Frank Wunderlich wrote:
> 
> 
> Am 23. August 2019 16:56:13 MESZ schrieb Matthias Brugger <matthias.bgg@...il.com>:
>> are you sure that you provide the correct chip_id here? I saw 0x2023
>> (if I
>> remember correctly), while this switch checks for 0x23, 0x91 and 0x97,
>> so I'm
>> not sure if the problem really lies here. I didn't dig into the code to
>> find out
>> how the chip_id is created.
> 
> The chip-id 0x2023 is reported with 5.3-rc5, next-code says 0x0. So i guess the chipid is read out/calculated the wrong way. If calculation is not changed the read is changed compared to 5.3
> 

I suppose that's because 3/10 has code that should be in 2/10 and for some
reason 3/10 was not pushed for linux-next inclusion. Although it has the same
Acked-for-mfd-by tag.

@Frank, can you test if adding 3/10 to your code base fixes the issue?

Regards,
Matthias