linux-kernel - Re: [PATCH 05/10] dt-bindings: mfd: cirrus,cs42l43: Add initial DT binding

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Message-ID: <20230512161803.GM68926@ediswmail.ad.cirrus.com>
Date:   Fri, 12 May 2023 16:18:03 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
CC:     <broonie@...nel.org>, <lee@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <tglx@...utronix.de>, <maz@...nel.org>, <linus.walleij@...aro.org>,
        <vkoul@...nel.org>, <lgirdwood@...il.com>,
        <yung-chuan.liao@...ux.intel.com>, <sanyog.r.kale@...el.com>,
        <pierre-louis.bossart@...ux.intel.com>,
        <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
        <devicetree@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
        <linux-spi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 05/10] dt-bindings: mfd: cirrus,cs42l43: Add initial DT
 binding

On Fri, May 12, 2023 at 05:25:52PM +0200, Krzysztof Kozlowski wrote:
> On 12/05/2023 14:28, Charles Keepax wrote:
> > The CS42L43 is an audio CODEC with integrated MIPI SoundWire interface
> > (Version 1.2.1 compliant), I2C, SPI, and I2S/TDM interfaces designed
> > for portable applications. It provides a high dynamic range, stereo
> > DAC for headphone output, two integrated Class D amplifiers for
> 
> ...
> 
> > +
> > +  interrupt-controller: true
> > +
> > +  '#interrupt-cells':
> > +    const: 2
> 
> Hm, are you sure? Who is the consumer/user of this interrupt controller?
> 

Anyone who wants the device has GPIOs that can signal IRQs. Some
of the other IRQs could be more generally useful, such as some of
the jack detection ones.

Thanks,
Charles