1 files changed, 215 insertions, 37 deletions

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 960b5bed7f52..b8f2a4e7f6e7 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -198,6 +198,7 @@
 #define TWL6030_BASEADD_GASGAUGE	0x00C0
 #define TWL6030_BASEADD_PIH		0x00D0
 #define TWL6030_BASEADD_CHARGER		0x00E0
+#define TWL6025_BASEADD_CHARGER		0x00DA
 
 /* subchip/slave 2 0x4A - DFT */
 #define TWL6030_BASEADD_DIEID		0x00C0
@@ -229,6 +230,9 @@
 /* is driver active, bound to a chip? */
 static bool inuse;
 
+/* TWL IDCODE Register value */
+static u32 twl_idcode;
+
 static unsigned int twl_id;
 unsigned int twl_rev(void)
 {
@@ -328,6 +332,7 @@ static struct twl_mapping twl6030_map[] = {
 
 	{ SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
 	{ SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
+	{ SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER },
 };
 
 /*----------------------------------------------------------------------*/
@@ -487,6 +492,58 @@ EXPORT_SYMBOL(twl_i2c_read_u8);
 
 /*----------------------------------------------------------------------*/
 
+/**
+ * twl_read_idcode_register - API to read the IDCODE register.
+ *
+ * Unlocks the IDCODE register and read the 32 bit value.
+ */
+static int twl_read_idcode_register(void)
+{
+	int err;
+
+	err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK,
+						REG_UNLOCK_TEST_REG);
+	if (err) {
+		pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err);
+		goto fail;
+	}
+
+	err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode),
+						REG_IDCODE_7_0, 4);
+	if (err) {
+		pr_err("TWL4030: unable to read IDCODE -%d\n", err);
+		goto fail;
+	}
+
+	err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG);
+	if (err)
+		pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err);
+fail:
+	return err;
+}
+
+/**
+ * twl_get_type - API to get TWL Si type.
+ *
+ * Api to get the TWL Si type from IDCODE value.
+ */
+int twl_get_type(void)
+{
+	return TWL_SIL_TYPE(twl_idcode);
+}
+EXPORT_SYMBOL_GPL(twl_get_type);
+
+/**
+ * twl_get_version - API to get TWL Si version.
+ *
+ * Api to get the TWL Si version from IDCODE value.
+ */
+int twl_get_version(void)
+{
+	return TWL_SIL_REV(twl_idcode);
+}
+EXPORT_SYMBOL_GPL(twl_get_version);
+
 static struct device *
 add_numbered_child(unsigned chip, const char *name, int num,
 		void *pdata, unsigned pdata_len,
@@ -549,7 +606,7 @@ static inline struct device *add_child(unsigned chip, const char *name,
 static struct device *
 add_regulator_linked(int num, struct regulator_init_data *pdata,
 		struct regulator_consumer_supply *consumers,
-		unsigned num_consumers)
+		unsigned num_consumers, unsigned long features)
 {
 	unsigned sub_chip_id;
 	/* regulator framework demands init_data ... */
@@ -561,6 +618,8 @@ add_regulator_linked(int num, struct regulator_init_data *pdata,
 		pdata->num_consumer_supplies = num_consumers;
 	}
 
+	pdata->driver_data = (void *)features;
+
 	/* NOTE:  we currently ignore regulator IRQs, e.g. for short circuits */
 	sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
 	return add_numbered_child(sub_chip_id, "twl_reg", num,
@@ -568,9 +627,10 @@ add_regulator_linked(int num, struct regulator_init_data *pdata,
 }
 
 static struct device *
-add_regulator(int num, struct regulator_init_data *pdata)
+add_regulator(int num, struct regulator_init_data *pdata,
+		unsigned long features)
 {
-	return add_regulator_linked(num, pdata, NULL, 0);
+	return add_regulator_linked(num, pdata, NULL, 0, features);
 }
 
 /*
@@ -650,17 +710,20 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 			};
 
 			child = add_regulator_linked(TWL4030_REG_VUSB1V5,
-						      &usb_fixed, &usb1v5, 1);
+						      &usb_fixed, &usb1v5, 1,
+						      features);
 			if (IS_ERR(child))
 				return PTR_ERR(child);
 
 			child = add_regulator_linked(TWL4030_REG_VUSB1V8,
-						      &usb_fixed, &usb1v8, 1);
+						      &usb_fixed, &usb1v8, 1,
+						      features);
 			if (IS_ERR(child))
 				return PTR_ERR(child);
 
 			child = add_regulator_linked(TWL4030_REG_VUSB3V1,
-						      &usb_fixed, &usb3v1, 1);
+						      &usb_fixed, &usb3v1, 1,
+						      features);
 			if (IS_ERR(child))
 				return PTR_ERR(child);
 
@@ -685,9 +748,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 	}
 	if (twl_has_usb() && pdata->usb && twl_class_is_6030()) {
 
-		static struct regulator_consumer_supply usb3v3 = {
-			.supply =	"vusb",
-		};
+		static struct regulator_consumer_supply usb3v3;
+		int regulator;
 
 		if (twl_has_regulator()) {
 			/* this is a template that gets copied */
@@ -700,12 +762,22 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 					| REGULATOR_CHANGE_STATUS,
 			};
 
-			child = add_regulator_linked(TWL6030_REG_VUSB,
-						      &usb_fixed, &usb3v3, 1);
+			if (features & TWL6025_SUBCLASS) {
+				usb3v3.supply =	"ldousb";
+				regulator = TWL6025_REG_LDOUSB;
+			} else {
+				usb3v3.supply = "vusb";
+				regulator = TWL6030_REG_VUSB;
+			}
+			child = add_regulator_linked(regulator, &usb_fixed,
+							&usb3v3, 1,
+							features);
 			if (IS_ERR(child))
 				return PTR_ERR(child);
 		}
 
+		pdata->usb->features = features;
+
 		child = add_child(0, "twl6030_usb",
 			pdata->usb, sizeof(*pdata->usb),
 			true,
@@ -718,7 +790,16 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 		/* we need to connect regulators to this transceiver */
 		if (twl_has_regulator() && child)
 			usb3v3.dev = child;
+	} else if (twl_has_regulator() && twl_class_is_6030()) {
+		if (features & TWL6025_SUBCLASS)
+			child = add_regulator(TWL6025_REG_LDOUSB,
+						pdata->ldousb, features);
+		else
+			child = add_regulator(TWL6030_REG_VUSB,
+						pdata->vusb, features);
 
+			if (IS_ERR(child))
+					return PTR_ERR(child);
 	}
 
 	if (twl_has_watchdog() && twl_class_is_4030()) {
@@ -755,46 +836,55 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 
 	/* twl4030 regulators */
 	if (twl_has_regulator() && twl_class_is_4030()) {
-		child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1);
+		child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VIO, pdata->vio);
+		child = add_regulator(TWL4030_REG_VIO, pdata->vio,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1);
+		child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2);
+		child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1);
+		child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VDAC, pdata->vdac);
+		child = add_regulator(TWL4030_REG_VDAC, pdata->vdac,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
 		child = add_regulator((features & TWL4030_VAUX2)
 					? TWL4030_REG_VAUX2_4030
 					: TWL4030_REG_VAUX2,
-				pdata->vaux2);
+				pdata->vaux2, features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1);
+		child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2);
+		child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig);
+		child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -802,72 +892,152 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 	/* maybe add LDOs that are omitted on cost-reduced parts */
 	if (twl_has_regulator() && !(features & TPS_SUBSET)
 	  && twl_class_is_4030()) {
-		child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2);
+		child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2);
+		child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VSIM, pdata->vsim);
+		child = add_regulator(TWL4030_REG_VSIM, pdata->vsim,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1);
+		child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3);
+		child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4);
+		child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
 
 	/* twl6030 regulators */
+	if (twl_has_regulator() && twl_class_is_6030() &&
+			!(features & TWL6025_SUBCLASS)) {
+		child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VPP, pdata->vpp,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VDAC, pdata->vdac,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+	}
+
+	/* 6030 and 6025 share this regulator */
 	if (twl_has_regulator() && twl_class_is_6030()) {
-		child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc);
+		child = add_regulator(TWL6030_REG_VANA, pdata->vana,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
+	}
 
-		child = add_regulator(TWL6030_REG_VPP, pdata->vpp);
+	/* twl6025 regulators */
+	if (twl_has_regulator() && twl_class_is_6030() &&
+			(features & TWL6025_SUBCLASS)) {
+		child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim);
+		child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VANA, pdata->vana);
+		child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio);
+		child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VDAC, pdata->vdac);
+		child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1);
+		child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2);
+		child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3);
+		child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 
-		child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg);
+		child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3,
+					features);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
+
+		child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
+		child = add_regulator(TWL6025_REG_VIO, pdata->vio6025,
+					features);
+		if (IS_ERR(child))
+			return PTR_ERR(child);
+
 	}
 
 	if (twl_has_bci() && pdata->bci &&
@@ -1014,6 +1184,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	unsigned			i;
 	struct twl4030_platform_data	*pdata = client->dev.platform_data;
 	u8 temp;
+	int ret = 0;
 
 	if (!pdata) {
 		dev_dbg(&client->dev, "no platform data?\n");
@@ -1060,6 +1231,12 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	/* setup clock framework */
 	clocks_init(&client->dev, pdata->clock);
 
+	/* read TWL IDCODE Register */
+	if (twl_id == TWL4030_CLASS_ID) {
+		ret = twl_read_idcode_register();
+		WARN(ret < 0, "Error: reading twl_idcode register value\n");
+	}
+
 	/* load power event scripts */
 	if (twl_has_power() && pdata->power)
 		twl4030_power_init(pdata->power);
@@ -1108,6 +1285,7 @@ static const struct i2c_device_id twl_ids[] = {
 	{ "tps65930", TPS_SUBSET },	/* fewer LDOs and DACs; no charger */
 	{ "tps65920", TPS_SUBSET },	/* fewer LDOs; no codec or charger */
 	{ "twl6030", TWL6030_CLASS },	/* "Phoenix power chip" */
+	{ "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */
 	{ /* end of list */ },
 };
 MODULE_DEVICE_TABLE(i2c, twl_ids);