linux-kernel - Re: [PATCH 01/14] mfd: arizona: Add jack pointer to struct arizona

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Message-ID: <20201229151548.GG4786@sirena.org.uk>
Date:   Tue, 29 Dec 2020 15:15:48 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Charles Keepax <ckeepax@...nsource.cirrus.com>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Lee Jones <lee.jones@...aro.org>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        patches@...nsource.cirrus.com, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org
Subject: Re: [PATCH 01/14] mfd: arizona: Add jack pointer to struct arizona

On Tue, Dec 29, 2020 at 03:06:35PM +0000, Charles Keepax wrote:

> There is maybe more argument for porting the Arizona code across
> anyways, since for a long time Android didn't properly support extcon
> either. It supported the earlier out of tree switch stuff, extcon

Completely moving the driver doesn't cause the same problems as the
current proposal (unless it drops functionality I guess, there were
issues with adding new detection types into the input layer but I can't
remember if this hardware was impacted by that or not).

> had a switch compatibility mode, but that didn't actually work I
> think due to android hard coding some sysfs naming or something
> (memory is a little fuzzy on the details was a while ago now).

Yeah, it was a trivial edit to make it work which given everyone was
patching Android anyway wasn't a huge issue for shipping things (or you
could futz it in the kernel too if you felt like it).

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