3 files changed, 111 insertions, 1 deletions

diff --git a/drivers/power/avs/rockchip-io-domain.c b/drivers/power/avs/rockchip-io-domain.c
index 031a34372191..75f63e38a8d1 100644
--- a/drivers/power/avs/rockchip-io-domain.c
+++ b/drivers/power/avs/rockchip-io-domain.c
@@ -349,6 +349,36 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3399_pmu = {
 	.init = rk3399_pmu_iodomain_init,
 };
 
+static const struct rockchip_iodomain_soc_data soc_data_rv1108 = {
+	.grf_offset = 0x404,
+	.supply_names = {
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		"vccio1",
+		"vccio2",
+		"vccio3",
+		"vccio5",
+		"vccio6",
+	},
+
+};
+
+static const struct rockchip_iodomain_soc_data soc_data_rv1108_pmu = {
+	.grf_offset = 0x104,
+	.supply_names = {
+		"pmu",
+	},
+};
+
 static const struct of_device_id rockchip_iodomain_match[] = {
 	{
 		.compatible = "rockchip,rk3188-io-voltage-domain",
@@ -382,6 +412,14 @@ static const struct of_device_id rockchip_iodomain_match[] = {
 		.compatible = "rockchip,rk3399-pmu-io-voltage-domain",
 		.data = (void *)&soc_data_rk3399_pmu
 	},
+	{
+		.compatible = "rockchip,rv1108-io-voltage-domain",
+		.data = (void *)&soc_data_rv1108
+	},
+	{
+		.compatible = "rockchip,rv1108-pmu-io-voltage-domain",
+		.data = (void *)&soc_data_rv1108_pmu
+	},
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, rockchip_iodomain_match);
diff --git a/drivers/power/supply/twl4030_charger.c b/drivers/power/supply/twl4030_charger.c
index 9dff1b4b85fc..a5915f498eea 100644
--- a/drivers/power/supply/twl4030_charger.c
+++ b/drivers/power/supply/twl4030_charger.c
@@ -18,7 +18,7 @@
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
-#include <linux/i2c/twl.h>
+#include <linux/mfd/twl.h>
 #include <linux/power_supply.h>
 #include <linux/notifier.h>
 #include <linux/usb/otg.h>
diff --git a/drivers/power/supply/wm831x_power.c b/drivers/power/supply/wm831x_power.c
index 7082301da945..927050d4444d 100644
--- a/drivers/power/supply/wm831x_power.c
+++ b/drivers/power/supply/wm831x_power.c
@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
 #include <linux/slab.h>
+#include <linux/usb/phy.h>
 
 #include <linux/mfd/wm831x/core.h>
 #include <linux/mfd/wm831x/auxadc.h>
@@ -31,6 +32,8 @@ struct wm831x_power {
 	char usb_name[20];
 	char battery_name[20];
 	bool have_battery;
+	struct usb_phy *usb_phy;
+	struct notifier_block usb_notify;
 };
 
 static int wm831x_power_check_online(struct wm831x *wm831x, int supply,
@@ -125,6 +128,43 @@ static enum power_supply_property wm831x_usb_props[] = {
 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
 };
 
+/* In milliamps */
+static const unsigned int wm831x_usb_limits[] = {
+	0,
+	2,
+	100,
+	500,
+	900,
+	1500,
+	1800,
+	550,
+};
+
+static int wm831x_usb_limit_change(struct notifier_block *nb,
+				   unsigned long limit, void *data)
+{
+	struct wm831x_power *wm831x_power = container_of(nb,
+							 struct wm831x_power,
+							 usb_notify);
+	unsigned int i, best;
+
+	/* Find the highest supported limit */
+	best = 0;
+	for (i = 0; i < ARRAY_SIZE(wm831x_usb_limits); i++) {
+		if (limit >= wm831x_usb_limits[i] &&
+		    wm831x_usb_limits[best] < wm831x_usb_limits[i])
+			best = i;
+	}
+
+	dev_dbg(wm831x_power->wm831x->dev,
+		"Limiting USB current to %umA", wm831x_usb_limits[best]);
+
+	wm831x_set_bits(wm831x_power->wm831x, WM831X_POWER_STATE,
+		        WM831X_USB_ILIM_MASK, best);
+
+	return 0;
+}
+
 /*********************************************************************
  *		Battery properties
  *********************************************************************/
@@ -607,6 +647,33 @@ static int wm831x_power_probe(struct platform_device *pdev)
 		}
 	}
 
+	power->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "phys", 0);
+	ret = PTR_ERR_OR_ZERO(power->usb_phy);
+
+	switch (ret) {
+	case 0:
+		power->usb_notify.notifier_call = wm831x_usb_limit_change;
+		ret = usb_register_notifier(power->usb_phy, &power->usb_notify);
+		if (ret) {
+			dev_err(&pdev->dev, "Failed to register notifier: %d\n",
+				ret);
+			goto err_bat_irq;
+		}
+		break;
+	case -EINVAL:
+	case -ENODEV:
+		/* ignore missing usb-phy, it's optional */
+		power->usb_phy = NULL;
+		ret = 0;
+		break;
+	default:
+		dev_err(&pdev->dev, "Failed to find USB phy: %d\n", ret);
+		/* fall-through */
+	case -EPROBE_DEFER:
+		goto err_bat_irq;
+		break;
+	}
+
 	return ret;
 
 err_bat_irq:
@@ -637,6 +704,11 @@ static int wm831x_power_remove(struct platform_device *pdev)
 	struct wm831x *wm831x = wm831x_power->wm831x;
 	int irq, i;
 
+	if (wm831x_power->usb_phy) {
+		usb_unregister_notifier(wm831x_power->usb_phy,
+					&wm831x_power->usb_notify);
+	}
+
 	for (i = 0; i < ARRAY_SIZE(wm831x_bat_irqs); i++) {
 		irq = wm831x_irq(wm831x, 
 				 platform_get_irq_byname(pdev,