mfd: Correct readability of WM8994 DC servo 4E register

It should be marked as readable but wasn't, breaking DC servo operation.

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 47743fa8492d2a85f49c4323c0564b1dbd90205a..ba383f67fe5347dbebbf52746d801b1e032a80f3 100644 (file)
--- a/drivers/mfd/wm8994-regmap.c
+++ b/drivers/mfd/wm8994-regmap.c
@@ -806,6 +806,7 @@ static bool wm1811_readable_register(struct device *dev, unsigned int reg)
        case WM8994_DC_SERVO_2:
        case WM8994_DC_SERVO_READBACK:
        case WM8994_DC_SERVO_4:
+       case WM8994_DC_SERVO_4E:
        case WM8994_ANALOGUE_HP_1:
        case WM8958_MIC_DETECT_1:
        case WM8958_MIC_DETECT_2: