linux-kernel - [PATCH] mfd: wm8994: Implement support for WM1811 devices with higher cust

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Date:	Thu, 23 Aug 2012 15:47:52 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH] 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@...nsource.wolfsonmicro.com>
---
 drivers/mfd/wm8994-regmap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/wm8994-regmap.c b/drivers/mfd/wm8994-regmap.c
index 52e9e29..2fbce9c 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;
-- 
1.7.10.4

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