regulator: Fix get_mode() for WM835x DCDCs

The WM835x regulators need a different register checking for force
mode on each DCDC. Previously the force mode status for DCDC1 was
checked.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 18 insertions, 6 deletions

diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 93e0ce5a5c2..261db94e0e7 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1031,18 +1031,30 @@ static unsigned int wm8350_dcdc_get_mode(struct regulator_dev *rdev)
         int dcdc = rdev_get_id(rdev);
         u16 mask, sleep, active, force;
         int mode = REGULATOR_MODE_NORMAL;
+        int reg;
 
-        if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6)
-                return -EINVAL;
-
-        if (dcdc == WM8350_DCDC_2 || dcdc == WM8350_DCDC_5)
+        switch (dcdc) {
+        case WM8350_DCDC_1:
+                reg = WM8350_DCDC1_FORCE_PWM;
+                break;
+        case WM8350_DCDC_3:
+                reg = WM8350_DCDC3_FORCE_PWM;
+                break;
+        case WM8350_DCDC_4:
+                reg = WM8350_DCDC4_FORCE_PWM;
+                break;
+        case WM8350_DCDC_6:
+                reg = WM8350_DCDC6_FORCE_PWM;
+                break;
+        default:
                 return -EINVAL;
+        }
 
         mask = 1 << (dcdc - WM8350_DCDC_1);
         active = wm8350_reg_read(wm8350, WM8350_DCDC_ACTIVE_OPTIONS) & mask;
+        force = wm8350_reg_read(wm8350, reg) & WM8350_DCDC1_FORCE_PWM_ENA;
         sleep = wm8350_reg_read(wm8350, WM8350_DCDC_SLEEP_OPTIONS) & mask;
-        force = wm8350_reg_read(wm8350, WM8350_DCDC1_FORCE_PWM)
-            & WM8350_DCDC1_FORCE_PWM_ENA;
+
         dev_dbg(wm8350->dev, "mask %x active %x sleep %x force %x",
                 mask, active, sleep, force);