mfd: Make twl-core not depend on pdata->irq_base/end

With sparse IRQs the driver shouldn't depend at all on
any IRQ values coming from board-file.

Remove every occurences of pdata->irq_base/end.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/twl-core.c

@@ -652,7 +652,8 @@ add_regulator(int num, struct regulator_init_data *pdata,
  */
 
 static int
-add_children(struct twl4030_platform_data *pdata, unsigned long features)
+add_children(struct twl4030_platform_data *pdata, unsigned irq_base,
+		unsigned long features)
 {
 	struct device	*child;
 	unsigned sub_chip_id;
@@ -660,7 +661,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 	if (twl_has_gpio() && pdata->gpio) {
 		child = add_child(SUB_CHIP_ID1, "twl4030_gpio",
 				pdata->gpio, sizeof(*pdata->gpio),
-				false, pdata->irq_base + GPIO_INTR_OFFSET, 0);
+				false, irq_base + GPIO_INTR_OFFSET, 0);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -668,7 +669,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 	if (twl_has_keypad() && pdata->keypad) {
 		child = add_child(SUB_CHIP_ID2, "twl4030_keypad",
 				pdata->keypad, sizeof(*pdata->keypad),
-				true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0);
+				true, irq_base + KEYPAD_INTR_OFFSET, 0);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -676,7 +677,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 	if (twl_has_madc() && pdata->madc) {
 		child = add_child(2, "twl4030_madc",
 				pdata->madc, sizeof(*pdata->madc),
-				true, pdata->irq_base + MADC_INTR_OFFSET, 0);
+				true, irq_base + MADC_INTR_OFFSET, 0);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -692,7 +693,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 		sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
 		child = add_child(sub_chip_id, "twl_rtc",
 				NULL, 0,
-				true, pdata->irq_base + RTC_INTR_OFFSET, 0);
+				true, irq_base + RTC_INTR_OFFSET, 0);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -745,8 +746,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 				pdata->usb, sizeof(*pdata->usb),
 				true,
 				/* irq0 = USB_PRES, irq1 = USB */
-				pdata->irq_base + USB_PRES_INTR_OFFSET,
-				pdata->irq_base + USB_INTR_OFFSET);
+				irq_base + USB_PRES_INTR_OFFSET,
+				irq_base + USB_INTR_OFFSET);
 
 		if (IS_ERR(child))
 			return PTR_ERR(child);
@@ -794,8 +795,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 			pdata->usb, sizeof(*pdata->usb),
 			true,
 			/* irq1 = VBUS_PRES, irq0 = USB ID */
-			pdata->irq_base + USBOTG_INTR_OFFSET,
-			pdata->irq_base + USB_PRES_INTR_OFFSET);
+			irq_base + USBOTG_INTR_OFFSET,
+			irq_base + USB_PRES_INTR_OFFSET);
 
 		if (IS_ERR(child))
 			return PTR_ERR(child);
@@ -822,7 +823,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 
 	if (twl_has_pwrbutton() && twl_class_is_4030()) {
 		child = add_child(1, "twl4030_pwrbutton",
-				NULL, 0, true, pdata->irq_base + 8 + 0, 0);
+				NULL, 0, true, irq_base + 8 + 0, 0);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -1056,8 +1057,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
 		child = add_child(3, "twl4030_bci",
 				pdata->bci, sizeof(*pdata->bci), false,
 				/* irq0 = CHG_PRES, irq1 = BCI */
-				pdata->irq_base + BCI_PRES_INTR_OFFSET,
-				pdata->irq_base + BCI_INTR_OFFSET);
+				irq_base + BCI_PRES_INTR_OFFSET,
+				irq_base + BCI_INTR_OFFSET);
 		if (IS_ERR(child))
 			return PTR_ERR(child);
 	}
@@ -1191,6 +1192,8 @@ static int twl_remove(struct i2c_client *client)
 static int __devinit
 twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
+	int				irq_base;
+	int				irq_end;
 	int				status;
 	unsigned			i;
 	struct twl4030_platform_data	*pdata = client->dev.platform_data;
@@ -1219,22 +1222,16 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		return -EINVAL;
 	}
 
-	status = irq_alloc_descs(-1, pdata->irq_base, nr_irqs, 0);
+	status = irq_alloc_descs(-1, 0, nr_irqs, 0);
 	if (IS_ERR_VALUE(status)) {
 		dev_err(&client->dev, "Fail to allocate IRQ descs\n");
 		return status;
 	}
 
-	pdata->irq_base = status;
-	pdata->irq_end = pdata->irq_base + nr_irqs;
-
-#ifdef CONFIG_IRQ_DOMAIN
-	domain.irq_base = pdata->irq_base;
-	domain.nr_irq = nr_irqs;
-	domain.of_node = of_node_get(node);
-	domain.ops = &irq_domain_simple_ops;
-	irq_domain_add(&domain);
-#endif
+	irq_base = status;
+	irq_end = irq_base + nr_irqs;
+	irq_domain_add_legacy(node, nr_irqs, irq_base, 0,
+			      &irq_domain_simple_ops, NULL);
 
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
 		dev_dbg(&client->dev, "can't talk I2C?\n");
@@ -1287,16 +1284,14 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		twl4030_power_init(pdata->power);
 
 	/* Maybe init the T2 Interrupt subsystem */
-	if (client->irq
-			&& pdata->irq_base
-			&& pdata->irq_end > pdata->irq_base) {
+	if (client->irq) {
 		if (twl_class_is_4030()) {
 			twl4030_init_chip_irq(id->name);
-			status = twl4030_init_irq(client->irq, pdata->irq_base,
-			pdata->irq_end);
+			status = twl4030_init_irq(client->irq, irq_base,
+			irq_end);
 		} else {
-			status = twl6030_init_irq(client->irq, pdata->irq_base,
-			pdata->irq_end);
+			status = twl6030_init_irq(client->irq, irq_base,
+			irq_end);
 		}
 
 		if (status < 0)
@@ -1315,12 +1310,10 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
 	}
 
-#ifdef CONFIG_OF_DEVICE
 	if (node)
 		status = of_platform_populate(node, NULL, NULL, &client->dev);
-	else
-#endif
-		status = add_children(pdata, id->driver_data);
+	if (status)
+		status = add_children(pdata, irq_base, id->driver_data);
 
 fail:
 	if (status < 0)