[PATCH v4 09/13] ASoC: arizona-jack: convert into a helper library for codec drivers

[Charles Keepax]

On Sat, Jan 23, 2021 at 01:13:09PM +0100, Hans de Goede wrote:
> Convert the arizona extcon driver into a helper library for direct use
> from the arizona codec-drivers, rather then being bound to a separate
> MFD cell.
> 
> Note the probe (and remove) sequence is split into 2 parts:
> 
> 1. The arizona_jack_codec_dev_probe() function inits a bunch of
> jack-detect specific variables in struct arizona_priv and tries to get
> a number of resources where getting them may fail with -EPROBE_DEFER.
> 
> 2. Then once the machine driver has create a snd_sock_jack through
> snd_soc_card_jack_new() it calls snd_soc_component_set_jack() on
> the codec component, which will call the new arizona_jack_set_jack(),
> which sets up jack-detection and requests the IRQs.
> 
> This split is necessary, because the IRQ handlers need access to the
> arizona->dapm pointer and the snd_sock_jack which are not available
> when the codec-driver's probe function runs.
> 
> Note this requires that machine-drivers for codecs which are converted
> to use the new helper functions from arizona-jack.c are modified to
> create a snd_soc_jack through snd_soc_card_jack_new() and register
> this jack with the codec through snd_soc_component_set_jack().
> 
> Reviewed-by: Andy Shevchenko <andy.shevchenko at gmail.com>
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> ---

Acked-by: Charles Keepax <ckeepax at opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax at opensource.cirrus.com>

Thanks,
Charles