From e7ad27cac94c6eb609d43b0f968dce8ff804fa7c Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 3 Mar 2015 15:04:53 +0000
Subject: [PATCH] mfd: arizona: Add DT binding for the DMIC reference voltages

Add a DT binding that lets the DMIC reference voltage source be
specified for each input.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/arizona-core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 9f819989683b..6ca6dfab50eb 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -561,6 +561,16 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
 		count++;
 	}
 
+	count = 0;
+	of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop,
+				 cur, val) {
+		if (count == ARRAY_SIZE(arizona->pdata.dmic_ref))
+			break;
+
+		arizona->pdata.dmic_ref[count] = val;
+		count++;
+	}
+
 	return 0;
 }