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-rw-r--r--drivers/mfd/wm8350-core.c6
-rw-r--r--drivers/regulator/wm8350-regulator.c7
-rw-r--r--include/linux/mfd/wm8350/pmic.h4
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 03af3b12c020..56c363c240a9 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1301,6 +1301,9 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
switch (mask_rev) {
case 0:
+ wm8350->pmic.max_dcdc = WM8350_DCDC_6;
+ wm8350->pmic.max_isink = WM8350_ISINK_B;
+
switch (chip_rev) {
case WM8350_REV_E:
dev_info(wm8350->dev, "WM8350 Rev E\n");
@@ -1325,6 +1328,9 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
break;
case 2:
+ wm8350->pmic.max_dcdc = WM8350_DCDC_6;
+ wm8350->pmic.max_isink = WM8350_ISINK_B;
+
switch (chip_rev) {
case 0:
dev_info(wm8350->dev, "WM8352 Rev A\n");
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 1f44b17e23b1..c68c496b2c49 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1380,6 +1380,13 @@ int wm8350_register_regulator(struct wm8350 *wm8350, int reg,
if (wm8350->pmic.pdev[reg])
return -EBUSY;
+ if (reg >= WM8350_DCDC_1 && reg <= WM8350_DCDC_6 &&
+ reg > wm8350->pmic.max_dcdc)
+ return -ENODEV;
+ if (reg >= WM8350_ISINK_A && reg <= WM8350_ISINK_B &&
+ reg > wm8350->pmic.max_isink)
+ return -ENODEV;
+
pdev = platform_device_alloc("wm8350-regulator", reg);
if (!pdev)
return -ENOMEM;
diff --git a/include/linux/mfd/wm8350/pmic.h b/include/linux/mfd/wm8350/pmic.h
index 69b69e07f62f..96acbfc8aa12 100644
--- a/include/linux/mfd/wm8350/pmic.h
+++ b/include/linux/mfd/wm8350/pmic.h
@@ -701,6 +701,10 @@ struct platform_device;
struct regulator_init_data;
struct wm8350_pmic {
+ /* Number of regulators of each type on this device */
+ int max_dcdc;
+ int max_isink;
+
/* ISINK to DCDC mapping */
int isink_A_dcdc;
int isink_B_dcdc;