mfd: arizona: Add device tree binding to specify mono outputs

Add device tree bindings to support specifying outputs from the chip as
mono outputs. Whilst we are doing it change the out_mono pdata from a
bool to an int, because Sparse gets upset about using ARRAY_SIZE on
bools.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/arizona-core.c

@@ -861,6 +861,16 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
 		count++;
 	}
 
+	count = 0;
+	of_property_for_each_u32(arizona->dev->of_node, "wlf,out-mono", prop,
+				 cur, val) {
+		if (count == ARRAY_SIZE(pdata->out_mono))
+			break;
+
+		pdata->out_mono[count] = !!val;
+		count++;
+	}
+
 	return 0;
 }
 

include/linux/mfd/arizona/pdata.h

@@ -171,7 +171,7 @@ struct arizona_pdata {
 	int inmode[ARIZONA_MAX_INPUT];
 
 	/** Mode for outputs */
-	bool out_mono[ARIZONA_MAX_OUTPUT];
+	int out_mono[ARIZONA_MAX_OUTPUT];
 
 	/** PDM speaker mute setting */
 	unsigned int spk_mute[ARIZONA_MAX_PDM_SPK];