ASoC: arizona: Add data structure for voice trigger notifier

64-bit builds would generate a warning when we passed the core number as
a pointer through the notifier data:

sound/soc/codecs/cs47l24.c:1091:13: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
             (void *)i);

Rather than just fix this up with more casting add a data structure that
holds information for the notifier chain. This will make it easier to
add additional information in the future as well.

Fixes: 7baa7e24 ("ASoC: arizona: Add event notification on voice trigger events")
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/arizona.h

@@ -98,6 +98,10 @@ struct arizona_priv {
 	bool dvfs_cached;
 };
 
+struct arizona_voice_trigger_info {
+	int core;
+};
+
 #define ARIZONA_NUM_MIXER_INPUTS 104
 
 extern const unsigned int arizona_mixer_tlv[];

sound/soc/codecs/cs47l24.c

@@ -1067,6 +1067,7 @@ static irqreturn_t cs47l24_adsp2_irq(int irq, void *data)
 {
 	struct cs47l24_priv *priv = data;
 	struct arizona *arizona = priv->core.arizona;
+	struct arizona_voice_trigger_info info;
 	int serviced = 0;
 	int i, ret;
 
@@ -1074,10 +1075,12 @@ static irqreturn_t cs47l24_adsp2_irq(int irq, void *data)
 		ret = wm_adsp_compr_handle_irq(&priv->core.adsp[i]);
 		if (ret != -ENODEV)
 			serviced++;
-		if (ret == WM_ADSP_COMPR_VOICE_TRIGGER)
+		if (ret == WM_ADSP_COMPR_VOICE_TRIGGER) {
+			info.core = i;
 			arizona_call_notifiers(arizona,
 					       ARIZONA_NOTIFY_VOICE_TRIGGER,
-					       (void *)i);
+					       &info);
+		}
 	}
 
 	if (!serviced) {

sound/soc/codecs/wm5110.c

@@ -2222,6 +2222,7 @@ static irqreturn_t wm5110_adsp2_irq(int irq, void *data)
 {
 	struct wm5110_priv *priv = data;
 	struct arizona *arizona = priv->core.arizona;
+	struct arizona_voice_trigger_info info;
 	int serviced = 0;
 	int i, ret;
 
@@ -2229,10 +2230,12 @@ static irqreturn_t wm5110_adsp2_irq(int irq, void *data)
 		ret = wm_adsp_compr_handle_irq(&priv->core.adsp[i]);
 		if (ret != -ENODEV)
 			serviced++;
-		if (ret == WM_ADSP_COMPR_VOICE_TRIGGER)
+		if (ret == WM_ADSP_COMPR_VOICE_TRIGGER) {
+			info.core = i;
 			arizona_call_notifiers(arizona,
 					       ARIZONA_NOTIFY_VOICE_TRIGGER,
-					       (void *)i);
+					       &info);
+		}
 	}
 
 	if (!serviced) {