From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 23 Aug 2012 14:47:52 +0000 (+0100)
Subject: mfd: wm8994: Implement support for WM1811 devices with higher cust_ids
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1de74cfd69077c06507f444d7192aefc17784ab5;p=linux-beck.git

mfd: wm8994: Implement support for WM1811 devices with higher cust_ids

Higher cust_ids have had the device revision field reset so need different
handling of GPIO6.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/wm8994-regmap.c b/drivers/mfd/wm8994-regmap.c
index 52e9e2944940..2fbce9c5950b 100644
--- a/drivers/mfd/wm8994-regmap.c
+++ b/drivers/mfd/wm8994-regmap.c
@@ -1136,7 +1136,7 @@ static bool wm1811_volatile_register(struct device *dev, unsigned int reg)
 
 	switch (reg) {
 	case WM8994_GPIO_6:
-		if (wm8994->revision > 1)
+		if (wm8994->cust_id > 1 || wm8994->revision > 1)
 			return true;
 		else
 			return false;