On Sun, Dec 27, 2020 at 11:16 PM Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
>
> The Linux Arizona driver uses the MFD framework to create several
> sub-devices for the Arizona codec and then uses a driver per function.
>
> The extcon-arizona driver handles jack-detect support and exports info
> about the jack state to userspace through the standard extcon sysfs
> class interface.
>
> Standard Linux userspace does not monitor/use the extcon sysfs interface
> for jack-detection, resulting in the jack-state not being taken into
> account by userspace.
>
> The ASoC machine-driver may have created a standard ASoC jack when
> registering the card. In this case also report the jack-state through the
> ASoC jack so that jack-detection works with standard Linux userspace.
>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> ---
> drivers/extcon/extcon-arizona.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
> index d5b3231744f9..931a7d239aea 100644
> --- a/drivers/extcon/extcon-arizona.c
> +++ b/drivers/extcon/extcon-arizona.c
> @@ -20,6 +20,7 @@
> #include <linux/regulator/consumer.h>
> #include <linux/extcon-provider.h>
>
> +#include <sound/jack.h>
> #include <sound/soc.h>
>
> #include <linux/mfd/arizona/core.h>
> @@ -598,11 +599,19 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading,
> static void arizona_set_extcon_state(struct arizona_extcon_info *info,
> unsigned int id, bool state)
> {
> - int ret;
> + int ret, mask = 0;
I would rather prefer... drop assignment here...
> ret = extcon_set_state_sync(info->edev, id, state);
> if (ret)
> dev_err(info->arizona->dev, "Failed to set extcon state: %d\n", ret);
> +
> + switch (id) {
> + case EXTCON_JACK_HEADPHONE: mask = SND_JACK_HEADPHONE; break;
> + case EXTCON_JACK_MICROPHONE: mask = SND_JACK_MICROPHONE; break;
...introduce default here, which immediately bails out (return)...
> + }
> +
> + if (info->arizona->jack && mask)
...and drop mask check here.
> + snd_soc_jack_report(info->arizona->jack, state ? mask : 0, mask);
> }
>
> static irqreturn_t arizona_hpdet_irq(int irq, void *data)
> --
> 2.28.0
>
--
With Best Regards,
Andy Shevchenko
