Merge tag 'topic/twl' into regulator-next

TWL specific changes, cross-merged with OMAP due to arch/arm wanting to
use the new ability to override the voltage set and get operations to
support the in-CPU voltage management.  The other changes are minor
fixes, the addition of a few new regulators and device tree support.

4 files changed, 366 insertions, 84 deletions

diff --git a/Documentation/devicetree/bindings/regulator/twl-regulator.txt b/Documentation/devicetree/bindings/regulator/twl-regulator.txt
new file mode 100644
index 000000000000..0c3395d55ac1
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/twl-regulator.txt
@@ -0,0 +1,68 @@
+TWL family of regulators
+
+Required properties:
+For twl6030 regulators/LDOs
+- compatible:
+  - "ti,twl6030-vaux1" for VAUX1 LDO
+  - "ti,twl6030-vaux2" for VAUX2 LDO
+  - "ti,twl6030-vaux3" for VAUX3 LDO
+  - "ti,twl6030-vmmc" for VMMC LDO
+  - "ti,twl6030-vpp" for VPP LDO
+  - "ti,twl6030-vusim" for VUSIM LDO
+  - "ti,twl6030-vana" for VANA LDO
+  - "ti,twl6030-vcxio" for VCXIO LDO
+  - "ti,twl6030-vdac" for VDAC LDO
+  - "ti,twl6030-vusb" for VUSB LDO
+  - "ti,twl6030-v1v8" for V1V8 LDO
+  - "ti,twl6030-v2v1" for V2V1 LDO
+  - "ti,twl6030-clk32kg" for CLK32KG RESOURCE
+  - "ti,twl6030-vdd1" for VDD1 SMPS
+  - "ti,twl6030-vdd2" for VDD2 SMPS
+  - "ti,twl6030-vdd3" for VDD3 SMPS
+For twl6025 regulators/LDOs
+- compatible:
+  - "ti,twl6025-ldo1" for LDO1 LDO
+  - "ti,twl6025-ldo2" for LDO2 LDO
+  - "ti,twl6025-ldo3" for LDO3 LDO
+  - "ti,twl6025-ldo4" for LDO4 LDO
+  - "ti,twl6025-ldo5" for LDO5 LDO
+  - "ti,twl6025-ldo6" for LDO6 LDO
+  - "ti,twl6025-ldo7" for LDO7 LDO
+  - "ti,twl6025-ldoln" for LDOLN LDO
+  - "ti,twl6025-ldousb" for LDOUSB LDO
+  - "ti,twl6025-smps3" for SMPS3 SMPS
+  - "ti,twl6025-smps4" for SMPS4 SMPS
+  - "ti,twl6025-vio" for VIO SMPS
+For twl4030 regulators/LDOs
+- compatible:
+  - "ti,twl4030-vaux1" for VAUX1 LDO
+  - "ti,twl4030-vaux2" for VAUX2 LDO
+  - "ti,twl5030-vaux2" for VAUX2 LDO
+  - "ti,twl4030-vaux3" for VAUX3 LDO
+  - "ti,twl4030-vaux4" for VAUX4 LDO
+  - "ti,twl4030-vmmc1" for VMMC1 LDO
+  - "ti,twl4030-vmmc2" for VMMC2 LDO
+  - "ti,twl4030-vpll1" for VPLL1 LDO
+  - "ti,twl4030-vpll2" for VPLL2 LDO
+  - "ti,twl4030-vsim" for VSIM LDO
+  - "ti,twl4030-vdac" for VDAC LDO
+  - "ti,twl4030-vintana2" for VINTANA2 LDO
+  - "ti,twl4030-vio" for VIO LDO
+  - "ti,twl4030-vdd1" for VDD1 SMPS
+  - "ti,twl4030-vdd2" for VDD2 SMPS
+  - "ti,twl4030-vintana1" for VINTANA1 LDO
+  - "ti,twl4030-vintdig" for VINTDIG LDO
+  - "ti,twl4030-vusb1v5" for VUSB1V5 LDO
+  - "ti,twl4030-vusb1v8" for VUSB1V8 LDO
+  - "ti,twl4030-vusb3v1" for VUSB3V1 LDO
+
+Optional properties:
+- Any optional property defined in bindings/regulator/regulator.txt
+
+Example:
+
+        xyz: regulator@0 {
+                compatible = "ti,twl6030-vaux1";
+                regulator-min-microvolt  = <1000000>;
+                regulator-max-microvolt  = <3000000>;
+        };
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index c1e4f1a277e9..6cb10610a161 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -621,6 +621,8 @@ add_regulator_linked(int num, struct regulator_init_data *pdata,
                 unsigned num_consumers, unsigned long features)
 {
         unsigned sub_chip_id;
+        struct twl_regulator_driver_data drv_data;
+
         /* regulator framework demands init_data ... */
         if (!pdata)
                 return NULL;
@@ -630,7 +632,19 @@ add_regulator_linked(int num, struct regulator_init_data *pdata,
                 pdata->num_consumer_supplies = num_consumers;
         }
 
-        pdata->driver_data = (void *)features;
+        if (pdata->driver_data) {
+                /* If we have existing drv_data, just add the flags */
+                struct twl_regulator_driver_data *tmp;
+                tmp = pdata->driver_data;
+                tmp->features |= features;
+        } else {
+                /* add new driver data struct, used only during init */
+                drv_data.features = features;
+                drv_data.set_voltage = NULL;
+                drv_data.get_voltage = NULL;
+                drv_data.data = NULL;
+                pdata->driver_data = &drv_data;
+        }
 
         /* NOTE:  we currently ignore regulator IRQs, e.g. for short circuits */
         sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
@@ -937,6 +951,31 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
         /* twl6030 regulators */
         if (twl_has_regulator() && twl_class_is_6030() &&
                         !(features & TWL6025_SUBCLASS)) {
+                child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1,
+                                        features);
+                if (IS_ERR(child))
+                        return PTR_ERR(child);
+
+                child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2,
+                                        features);
+                if (IS_ERR(child))
+                        return PTR_ERR(child);
+
+                child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3,
+                                        features);
+                if (IS_ERR(child))
+                        return PTR_ERR(child);
+
+                child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8,
+                                        features);
+                if (IS_ERR(child))
+                        return PTR_ERR(child);
+
+                child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1,
+                                        features);
+                if (IS_ERR(child))
+                        return PTR_ERR(child);
+
                 child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc,
                                         features);
                 if (IS_ERR(child))
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 181a2cfe180c..9cdfc389ca26 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -14,8 +14,11 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/i2c/twl.h>
 
 
@@ -58,6 +61,16 @@ struct twlreg_info {
 
         /* chip specific features */
         unsigned long           features;
+
+        /*
+         * optional override functions for voltage set/get
+         * these are currently only used for SMPS regulators
+         */
+        int                     (*get_voltage)(void *data);
+        int                     (*set_voltage)(void *data, int target_uV);
+
+        /* data passed from board for external get/set voltage */
+        void                    *data;
 };
 
 
@@ -522,15 +535,25 @@ twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
         struct twlreg_info *info = rdev_get_drvdata(rdev);