In wm8997_component_probe(), wm8997 should be initialized by
arizona_init_gpio(). A proper implementation can be found in
'wm8998_component_probe()' where the wm8998 component is
initialized with arizona_init_gpio().

Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
---
 sound/soc/codecs/wm8997.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm8997.c b/sound/soc/codecs/wm8997.c
index 5389c363b14e..ef8e09cc7211 100644
--- a/sound/soc/codecs/wm8997.c
+++ b/sound/soc/codecs/wm8997.c
@@ -1066,6 +1066,8 @@ static int wm8997_component_probe(struct snd_soc_component *component)
 	if (ret < 0)
 		return ret;
 
+	arizona_init_gpio(component);
+
 	snd_soc_component_disable_pin(component, "HAPTICS");
 
 	priv->core.arizona->dapm = dapm;
-- 
2.42.0.windows.2

On Mon, Mar 17, 2025 at 10:08:44PM +0800, Wentao Liang wrote:
> In wm8997_component_probe(), wm8997 should be initialized by
> arizona_init_gpio(). A proper implementation can be found in
> 'wm8998_component_probe()' where the wm8998 component is
> initialized with arizona_init_gpio().
> 
> Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
> ---
>  sound/soc/codecs/wm8997.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/sound/soc/codecs/wm8997.c b/sound/soc/codecs/wm8997.c
> index 5389c363b14e..ef8e09cc7211 100644
> --- a/sound/soc/codecs/wm8997.c
> +++ b/sound/soc/codecs/wm8997.c
> @@ -1066,6 +1066,8 @@ static int wm8997_component_probe(struct snd_soc_component *component)
>  	if (ret < 0)
>  		return ret;
>  
> +	arizona_init_gpio(component);
> +

This is not a missing initialisation, arizona_init_gpios hooks up
the signal detect feature. I am not certain it is worth adding the
signal detect feature to wm8997 at this point given I am not even
sure it shipped any units. If you do actually have a reason for
doing so, this is not sufficient to enable the feature. You need
to also add the Signal Detect widgets and routes.

Thanks,
Charles