mfd: Switch WM8350 revision detection to a feature based model

Rather than check for chip revisions in the WM8350 drivers have the core
code set flags for relevant differences.

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

4 files changed, 5 insertions, 7 deletions

diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 60439bd3984d..764bf15ea684 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1240,19 +1240,17 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
                 switch ((id2 & WM8350_CHIP_REV_MASK) >> 12) {
                 case WM8350_REV_E:
                         dev_info(wm8350->dev, "Found Rev E device\n");
-                        wm8350->rev = WM8350_REV_E;
                         break;
                 case WM8350_REV_F:
                         dev_info(wm8350->dev, "Found Rev F device\n");
-                        wm8350->rev = WM8350_REV_F;
                         break;
                 case WM8350_REV_G:
                         dev_info(wm8350->dev, "Found Rev G device\n");
-                        wm8350->rev = WM8350_REV_G;
+                        wm8350->power.rev_g_coeff = 1;
                         break;
                 case WM8350_REV_H:
                         dev_info(wm8350->dev, "Found Rev H device\n");
-                        wm8350->rev = WM8350_REV_H;
+                        wm8350->power.rev_g_coeff = 1;
                         break;
                 default:
                         /* For safety we refuse to run on unknown hardware */
diff --git a/drivers/power/wm8350_power.c b/drivers/power/wm8350_power.c
index 9c0a847a1139..74e7593beffb 100644
--- a/drivers/power/wm8350_power.c
+++ b/drivers/power/wm8350_power.c
@@ -44,7 +44,7 @@ static int wm8350_read_usb_uvolts(struct wm8350 *wm8350)
 
 static inline int wm8350_charge_time_min(struct wm8350 *wm8350, int min)
 {
-        if (wm8350->rev < WM8350_REV_G)
+        if (!wm8350->power.rev_g_coeff)
                 return (((min - 30) / 15) & 0xf) << 8;
         else
                 return (((min - 30) / 30) & 0xf) << 8;
diff --git a/include/linux/mfd/wm8350/core.h b/include/linux/mfd/wm8350/core.h
index d2614dfc9397..3c9735663f36 100644
--- a/include/linux/mfd/wm8350/core.h
+++ b/include/linux/mfd/wm8350/core.h
@@ -585,8 +585,6 @@ struct wm8350_irq {
 };
 
 struct wm8350 {
-        int rev;                /* chip revision */
-
         struct device *dev;
 
         /* device IO */
diff --git a/include/linux/mfd/wm8350/supply.h b/include/linux/mfd/wm8350/supply.h
index 79721513fa9f..2b9479310bbd 100644
--- a/include/linux/mfd/wm8350/supply.h
+++ b/include/linux/mfd/wm8350/supply.h
@@ -127,6 +127,8 @@ struct wm8350_power {
         struct power_supply usb;
         struct power_supply ac;
         struct wm8350_charger_policy *policy;
+
+        int rev_g_coeff;
 };
 
 #endif