mfd: Add WM8352 support

The WM8352 is a variant of the WM8350. Aside from the register defaults
there are no software visible differences to the WM8350.

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

1 files changed, 70 insertions, 16 deletions

diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 2188d759cbde..fa505ac76c84 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1133,35 +1133,75 @@ EXPORT_SYMBOL_GPL(wm8350_read_auxadc);
 /*
  * Cache is always host endian.
  */
-static int wm8350_create_cache(struct wm8350 *wm8350, int mode)
+static int wm8350_create_cache(struct wm8350 *wm8350, int type, int mode)
 {
         int i, ret = 0;
         u16 value;
         const u16 *reg_map;
 
-        switch (mode) {
-#ifdef CONFIG_MFD_WM8350_CONFIG_MODE_0
+        switch (type) {
         case 0:
-                reg_map = wm8350_mode0_defaults;
-                break;
+                switch (mode) {
+#ifdef CONFIG_MFD_WM8350_CONFIG_MODE_0
+                case 0:
+                        reg_map = wm8350_mode0_defaults;
+                        break;
 #endif
 #ifdef CONFIG_MFD_WM8350_CONFIG_MODE_1
-        case 1:
-                reg_map = wm8350_mode1_defaults;
-                break;
+                case 1:
+                        reg_map = wm8350_mode1_defaults;
+                        break;
 #endif
 #ifdef CONFIG_MFD_WM8350_CONFIG_MODE_2
-        case 2:
-                reg_map = wm8350_mode2_defaults;
-                break;
+                case 2:
+                        reg_map = wm8350_mode2_defaults;
+                        break;
 #endif
 #ifdef CONFIG_MFD_WM8350_CONFIG_MODE_3
-        case 3:
-                reg_map = wm8350_mode3_defaults;
-                break;
+                case 3:
+                        reg_map = wm8350_mode3_defaults;
+                        break;
 #endif
+                default:
+                        dev_err(wm8350->dev,
+                                "WM8350 configuration mode %d not supported\n",
+                                mode);
+                        return -EINVAL;
+                }
+
+        case 2:
+                switch (mode) {
+#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_0
+                case 0:
+                        reg_map = wm8352_mode0_defaults;
+                        break;
+#endif
+#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_1
+                case 1:
+                        reg_map = wm8352_mode1_defaults;
+                        break;
+#endif
+#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_2
+                case 2:
+                        reg_map = wm8352_mode2_defaults;
+                        break;
+#endif
+#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_3
+                case 3:
+                        reg_map = wm8352_mode3_defaults;
+                        break;
+#endif
+                default:
+                        dev_err(wm8350->dev,
+                                "WM8352 configuration mode %d not supported\n",
+                                mode);
+                        return -EINVAL;
+                }
+                break;
+
         default:
-                dev_err(wm8350->dev, "Configuration mode %d not supported\n",
+                dev_err(wm8350->dev,
+                        "WM835x configuration mode %d not supported\n",
                         mode);
                 return -EINVAL;
         }
@@ -1284,13 +1324,27 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
                 }
                 break;
 
+        case 2:
+                switch (chip_rev) {
+                case 0:
+                        dev_info(wm8350->dev, "WM8352 Rev A\n");
+                        wm8350->power.rev_g_coeff = 1;
+                        break;
+
+                default:
+                        dev_err(wm8350->dev, "Unknown WM8352 CHIP_REV\n");
+                        ret = -ENODEV;
+                        goto err;
+                }
+                break;
+
         default:
                 dev_err(wm8350->dev, "Unknown MASK_REV\n");
                 ret = -ENODEV;
                 goto err;
         }
 
-        ret = wm8350_create_cache(wm8350, mode);
+        ret = wm8350_create_cache(wm8350, mask_rev, mode);
         if (ret < 0) {
                 dev_err(wm8350->dev, "Failed to create register cache\n");
                 return ret;