17 files changed, 1684 insertions, 150 deletions

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index 428b426842f4..ff6dab0bf0dd 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -75,6 +75,17 @@ config BATTERY_88PM860X
 	help
 	  Say Y here to enable battery monitor for Marvell 88PM860x chip.
 
+config CHARGER_ADP5061
+	tristate "ADP5061 battery charger driver"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say Y here to enable support for the ADP5061 standalone battery
+	  charger.
+
+	  This driver can be built as a module. If so, the module will be
+	  called adp5061.
+
 config BATTERY_ACT8945A
 	tristate "Active-semi ACT8945A charger driver"
 	depends on MFD_ACT8945A || COMPILE_TEST
@@ -92,7 +103,7 @@ config BATTERY_CPCAP
 
 config BATTERY_DS2760
 	tristate "DS2760 battery driver (HP iPAQ & others)"
-	depends on W1 && W1_SLAVE_DS2760
+	depends on W1
 	help
 	  Say Y here to enable support for batteries with ds2760 chip.
 
@@ -624,4 +635,14 @@ config CHARGER_RT9455
 	help
 	  Say Y to enable support for Richtek RT9455 battery charger.
 
+config CHARGER_CROS_USBPD
+	tristate "ChromeOS EC based USBPD charger"
+	depends on MFD_CROS_EC
+	default n
+	help
+	  Say Y here to enable ChromeOS EC based USBPD charger
+	  driver. This driver gets various bits of information about
+	  what is connected to USB PD ports from the EC and converts
+	  that into power_supply properties.
+
 endif # POWER_SUPPLY
diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
index e83aa843bcc6..a26b402c45d9 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_WM8350_POWER)	+= wm8350_power.o
 obj-$(CONFIG_TEST_POWER)	+= test_power.o
 
 obj-$(CONFIG_BATTERY_88PM860X)	+= 88pm860x_battery.o
+obj-$(CONFIG_CHARGER_ADP5061)	+= adp5061.o
 obj-$(CONFIG_BATTERY_ACT8945A)	+= act8945a_charger.o
 obj-$(CONFIG_BATTERY_AXP20X)	+= axp20x_battery.o
 obj-$(CONFIG_CHARGER_AXP20X)	+= axp20x_ac_power.o
@@ -83,3 +84,4 @@ obj-$(CONFIG_CHARGER_TPS65090)	+= tps65090-charger.o
 obj-$(CONFIG_CHARGER_TPS65217)	+= tps65217_charger.o
 obj-$(CONFIG_AXP288_FUEL_GAUGE) += axp288_fuel_gauge.o
 obj-$(CONFIG_AXP288_CHARGER)	+= axp288_charger.o
+obj-$(CONFIG_CHARGER_CROS_USBPD)	+= cros_usbpd-charger.o
diff --git a/drivers/power/supply/ab8500_fg.c b/drivers/power/supply/ab8500_fg.c
index d9c6c7bedd85..02356f9b5f22 100644
--- a/drivers/power/supply/ab8500_fg.c
+++ b/drivers/power/supply/ab8500_fg.c
@@ -379,15 +379,13 @@ static int ab8500_fg_is_low_curr(struct ab8500_fg *di, int curr)
  */
 static int ab8500_fg_add_cap_sample(struct ab8500_fg *di, int sample)
 {
-	struct timespec64 ts64;
+	time64_t now = ktime_get_boottime_seconds();
 	struct ab8500_fg_avg_cap *avg = &di->avg_cap;
 
-	getnstimeofday64(&ts64);
-
 	do {
 		avg->sum += sample - avg->samples[avg->pos];
 		avg->samples[avg->pos] = sample;
-		avg->time_stamps[avg->pos] = ts64.tv_sec;
+		avg->time_stamps[avg->pos] = now;
 		avg->pos++;
 
 		if (avg->pos == NBR_AVG_SAMPLES)
@@ -400,7 +398,7 @@ static int ab8500_fg_add_cap_sample(struct ab8500_fg *di, int sample)
 		 * Check the time stamp for each sample. If too old,
 		 * replace with latest sample
 		 */
-	} while (ts64.tv_sec - VALID_CAPACITY_SEC > avg->time_stamps[avg->pos]);
+	} while (now - VALID_CAPACITY_SEC > avg->time_stamps[avg->pos]);
 
 	avg->avg = avg->sum / avg->nbr_samples;
 
@@ -439,14 +437,14 @@ static void ab8500_fg_clear_cap_samples(struct ab8500_fg *di)
 static void ab8500_fg_fill_cap_sample(struct ab8500_fg *di, int sample)
 {
 	int i;
-	struct timespec64 ts64;
+	time64_t now;
 	struct ab8500_fg_avg_cap *avg = &di->avg_cap;
 
-	getnstimeofday64(&ts64);
+	now = ktime_get_boottime_seconds();
 
 	for (i = 0; i < NBR_AVG_SAMPLES; i++) {
 		avg->samples[i] = sample;
-		avg->time_stamps[i] = ts64.tv_sec;
+		avg->time_stamps[i] = now;
 	}
 
 	avg->pos = 0;
diff --git a/drivers/power/supply/adp5061.c b/drivers/power/supply/adp5061.c
new file mode 100644
index 000000000000..939fd3d8fb1a
--- /dev/null
+++ b/drivers/power/supply/adp5061.c
@@ -0,0 +1,745 @@
+/*
+ * ADP5061 I2C Programmable Linear Battery Charger
+ *
+ * Copyright 2018 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/mod_devicetable.h>
+#include <linux/power_supply.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+/* ADP5061 registers definition */
+#define ADP5061_ID			0x00
+#define ADP5061_REV			0x01
+#define ADP5061_VINX_SET		0x02
+#define ADP5061_TERM_SET		0x03
+#define ADP5061_CHG_CURR		0x04
+#define ADP5061_VOLTAGE_TH		0x05
+#define ADP5061_TIMER_SET		0x06
+#define ADP5061_FUNC_SET_1		0x07
+#define ADP5061_FUNC_SET_2		0x08
+#define ADP5061_INT_EN			0x09
+#define ADP5061_INT_ACT			0x0A
+#define ADP5061_CHG_STATUS_1		0x0B
+#define ADP5061_CHG_STATUS_2		0x0C
+#define ADP5061_FAULT			0x0D
+#define ADP5061_BATTERY_SHORT		0x10
+#define ADP5061_IEND			0x11
+
+/* ADP5061_VINX_SET */
+#define ADP5061_VINX_SET_ILIM_MSK		GENMASK(3, 0)
+#define ADP5061_VINX_SET_ILIM_MODE(x)		(((x) & 0x0F) << 0)
+
+/* ADP5061_TERM_SET */
+#define ADP5061_TERM_SET_VTRM_MSK		GENMASK(7, 2)
+#define ADP5061_TERM_SET_VTRM_MODE(x)		(((x) & 0x3F) << 2)
+#define ADP5061_TERM_SET_CHG_VLIM_MSK		GENMASK(1, 0)
+#define ADP5061_TERM_SET_CHG_VLIM_MODE(x)	(((x) & 0x03) << 0)
+
+/* ADP5061_CHG_CURR */
+#define ADP5061_CHG_CURR_ICHG_MSK		GENMASK(6, 2)
+#define ADP5061_CHG_CURR_ICHG_MODE(x)		(((x) & 0x1F) << 2)
+#define ADP5061_CHG_CURR_ITRK_DEAD_MSK		GENMASK(1, 0)
+#define ADP5061_CHG_CURR_ITRK_DEAD_MODE(x)	(((x) & 0x03) << 0)
+
+/* ADP5061_VOLTAGE_TH */
+#define ADP5061_VOLTAGE_TH_DIS_RCH_MSK		BIT(7)
+#define ADP5061_VOLTAGE_TH_DIS_RCH_MODE(x)	(((x) & 0x01) << 7)
+#define ADP5061_VOLTAGE_TH_VRCH_MSK		GENMASK(6, 5)
+#define ADP5061_VOLTAGE_TH_VRCH_MODE(x)		(((x) & 0x03) << 5)
+#define ADP5061_VOLTAGE_TH_VTRK_DEAD_MSK	GENMASK(4, 3)
+#define ADP5061_VOLTAGE_TH_VTRK_DEAD_MODE(x)	(((x) & 0x03) << 3)
+#define ADP5061_VOLTAGE_TH_VWEAK_MSK		GENMASK(2, 0)
+#define ADP5061_VOLTAGE_TH_VWEAK_MODE(x)	(((x) & 0x07) << 0)
+
+/* ADP5061_CHG_STATUS_1 */
+#define ADP5061_CHG_STATUS_1_VIN_OV(x)		(((x) >> 7) & 0x1)
+#define ADP5061_CHG_STATUS_1_VIN_OK(x)		(((x) >> 6) & 0x1)
+#define ADP5061_CHG_STATUS_1_VIN_ILIM(x)	(((x) >> 5) & 0x1)
+#define ADP5061_CHG_STATUS_1_THERM_LIM(x)	(((x) >> 4) & 0x1)
+#define ADP5061_CHG_STATUS_1_CHDONE(x)		(((x) >> 3) & 0x1)
+#define ADP5061_CHG_STATUS_1_CHG_STATUS(x)	(((x) >> 0) & 0x7)
+
+/* ADP5061_CHG_STATUS_2 */
+#define ADP5061_CHG_STATUS_2_THR_STATUS(x)	(((x) >> 5) & 0x7)
+#define ADP5061_CHG_STATUS_2_RCH_LIM_INFO(x)	(((x) >> 3) & 0x1)
+#define ADP5061_CHG_STATUS_2_BAT_STATUS(x)	(((x) >> 0) & 0x7)
+
+/* ADP5061_IEND */
+#define ADP5061_IEND_IEND_MSK			GENMASK(7, 5)
+#define ADP5061_IEND_IEND_MODE(x)		(((x) & 0x07) << 5)
+
+#define ADP5061_NO_BATTERY	0x01
+#define ADP5061_ICHG_MAX	1300 // mA
+
+enum adp5061_chg_status {
+	ADP5061_CHG_OFF,
+	ADP5061_CHG_TRICKLE,
+	ADP5061_CHG_FAST_CC,
+	ADP5061_CHG_FAST_CV,
+	ADP5061_CHG_COMPLETE,
+	ADP5061_CHG_LDO_MODE,
+	ADP5061_CHG_TIMER_EXP,
+	ADP5061_CHG_BAT_DET,
+};
+
+static const int adp5061_chg_type[4] = {
+	[ADP5061_CHG_OFF] = POWER_SUPPLY_CHARGE_TYPE_NONE,
+	[ADP5061_CHG_TRICKLE] = POWER_SUPPLY_CHARGE_TYPE_TRICKLE,
+	[ADP5061_CHG_FAST_CC] = POWER_SUPPLY_CHARGE_TYPE_FAST,
+	[ADP5061_CHG_FAST_CV] = POWER_SUPPLY_CHARGE_TYPE_FAST,
+};
+
+static const int adp5061_vweak_th[8] = {
+	2700, 2800, 2900, 3000, 3100, 3200, 3300, 3400,
+};
+
+static const int adp5061_prechg_current[4] = {
+	5, 10, 20, 80,
+};
+
+static const int adp5061_vmin[4] = {
+	2000, 2500, 2600, 2900,
+};
+
+static const int adp5061_const_chg_vmax[4] = {
+	3200, 3400, 3700, 3800,
+};
+
+static const int adp5061_const_ichg[24] = {
+	50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650,
+	700, 750, 800, 850, 900, 950, 1000, 1050, 1100, 1200, 1300,
+};
+
+static const int adp5061_vmax[36] = {
+	3800, 3820, 3840, 3860, 3880, 3900, 3920, 3940, 3960, 3980,
+	4000, 4020, 4040, 4060, 4080, 4100, 4120, 4140, 4160, 4180,
+	4200, 4220, 4240, 4260, 4280, 4300, 4320, 4340, 4360, 4380,
+	4400, 4420, 4440, 4460, 4480, 4500,
+};
+
+static const int adp5061_in_current_lim[16] = {
+	100, 150, 200, 250, 300, 400, 500, 600, 700,
+	800, 900, 1000, 1200, 1500, 1800, 2100,
+};
+
+static const int adp5061_iend[8] = {
+	12500, 32500, 52500, 72500, 92500, 117500, 142500, 170000,
+};
+
+struct adp5061_state {
+	struct i2c_client		*client;
+	struct regmap			*regmap;
+	struct power_supply		*psy;
+};
+
+static int adp5061_get_array_index(const int *array, u8 size, int val)
+{
+	int i;
+
+	for (i = 1; i < size; i++) {
+		if (val < array[i])
+			break;
+	}
+
+	return i-1;
+}
+
+static int adp5061_get_status(struct adp5061_state *st,
+			      u8 *status1, u8 *status2)
+{
+	u8 buf[2];
+	int ret;
+
+	/* CHG_STATUS1 and CHG_STATUS2 are adjacent regs */
+	ret = regmap_bulk_read(st->regmap, ADP5061_CHG_STATUS_1,
+			       &buf[0], 2);
+	if (ret < 0)
+		return ret;
+
+	*status1 = buf[0];
+	*status2 = buf[1];
+
+	return ret;
+}
+
+static int adp5061_get_input_current_limit(struct adp5061_state *st,
+		union power_supply_propval *val)
+{
+	unsigned int regval;
+	int mode, ret;
+
+	ret = regmap_read(st->regmap, ADP5061_VINX_SET, &regval);
+	if (ret < 0)
+		return ret;
+
+	mode = ADP5061_VINX_SET_ILIM_MODE(regval);
+	val->intval = adp5061_in_current_lim[mode] * 1000;
+
+	return ret;
+}
+
+static int adp5061_set_input_current_limit(struct adp5061_state *st, int val)
+{
+	int index;
+
+	/* Convert from uA to mA */
+	val /= 1000;
+	index = adp5061_get_array_index(adp5061_in_current_lim,
+					ARRAY_SIZE(adp5061_in_current_lim),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_VINX_SET,
+				  ADP5061_VINX_SET_ILIM_MSK,
+				  ADP5061_VINX_SET_ILIM_MODE(index));
+}
+
+static int adp5061_set_min_voltage(struct adp5061_state *st, int val)
+{
+	int index;
+
+	/* Convert from uV to mV */
+	val /= 1000;
+	index = adp5061_get_array_index(adp5061_vmin,
+					ARRAY_SIZE(adp5061_vmin),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_VOLTAGE_TH,
+				  ADP5061_VOLTAGE_TH_VTRK_DEAD_MSK,
+				  ADP5061_VOLTAGE_TH_VTRK_DEAD_MODE(index));
+}
+
+static int adp5061_get_min_voltage(struct adp5061_state *st,
+				   union power_supply_propval *val)
+{
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(st->regmap, ADP5061_VOLTAGE_TH, &regval);
+	if (ret < 0)
+		return ret;
+
+	regval = ((regval & ADP5061_VOLTAGE_TH_VTRK_DEAD_MSK) >> 3);
+	val->intval = adp5061_vmin[regval] * 1000;
+
+	return ret;
+}
+
+static int adp5061_get_chg_volt_lim(struct adp5061_state *st,
+				    union power_supply_propval *val)
+{
+	unsigned int regval;
+	int mode, ret;
+
+	ret = regmap_read(st->regmap, ADP5061_TERM_SET, &regval);
+	if (ret < 0)
+		return ret;
+
+	mode = ADP5061_TERM_SET_CHG_VLIM_MODE(regval);
+	val->intval = adp5061_const_chg_vmax[mode] * 1000;
+
+	return ret;
+}
+
+static int adp5061_get_max_voltage(struct adp5061_state *st,
+				   union power_supply_propval *val)
+{
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(st->regmap, ADP5061_TERM_SET, &regval);
+	if (ret < 0)
+		return ret;
+
+	regval = ((regval & ADP5061_TERM_SET_VTRM_MSK) >> 2) - 0x0F;
+	if (regval >= ARRAY_SIZE(adp5061_vmax))
+		regval = ARRAY_SIZE(adp5061_vmax) - 1;
+
+	val->intval = adp5061_vmax[regval] * 1000;
+
+	return ret;
+}
+
+static int adp5061_set_max_voltage(struct adp5061_state *st, int val)
+{
+	int vmax_index;
+
+	/* Convert from uV to mV */
+	val /= 1000;
+	if (val > 4500)
+		val = 4500;
+
+	vmax_index = adp5061_get_array_index(adp5061_vmax,
+					     ARRAY_SIZE(adp5061_vmax), val);
+	if (vmax_index < 0)
+		return vmax_index;
+
+	vmax_index += 0x0F;
+
+	return regmap_update_bits(st->regmap, ADP5061_TERM_SET,
+				  ADP5061_TERM_SET_VTRM_MSK,
+				  ADP5061_TERM_SET_VTRM_MODE(vmax_index));
+}
+
+static int adp5061_set_const_chg_vmax(struct adp5061_state *st, int val)
+{
+	int index;
+
+	/* Convert from uV to mV */
+	val /= 1000;
+	index = adp5061_get_array_index(adp5061_const_chg_vmax,
+					ARRAY_SIZE(adp5061_const_chg_vmax),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_TERM_SET,
+				  ADP5061_TERM_SET_CHG_VLIM_MSK,
+				  ADP5061_TERM_SET_CHG_VLIM_MODE(index));
+}
+
+static int adp5061_set_const_chg_current(struct adp5061_state *st, int val)
+{
+
+	int index;
+
+	/* Convert from uA to mA */
+	val /= 1000;
+	if (val > ADP5061_ICHG_MAX)
+		val = ADP5061_ICHG_MAX;
+
+	index = adp5061_get_array_index(adp5061_const_ichg,
+					ARRAY_SIZE(adp5061_const_ichg),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_CHG_CURR,
+				  ADP5061_CHG_CURR_ICHG_MSK,
+				  ADP5061_CHG_CURR_ICHG_MODE(index));
+}
+
+static int adp5061_get_const_chg_current(struct adp5061_state *st,
+		union power_supply_propval *val)
+{
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(st->regmap, ADP5061_CHG_CURR, &regval);
+	if (ret < 0)
+		return ret;
+
+	regval = ((regval & ADP5061_CHG_CURR_ICHG_MSK) >> 2);
+	if (regval >= ARRAY_SIZE(adp5061_const_ichg))
+		regval = ARRAY_SIZE(adp5061_const_ichg) - 1;
+
+	val->intval = adp5061_const_ichg[regval] * 1000;
+
+	return ret;
+}
+
+static int adp5061_get_prechg_current(struct adp5061_state *st,
+				      union power_supply_propval *val)
+{
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(st->regmap, ADP5061_CHG_CURR, &regval);
+	if (ret < 0)
+		return ret;
+
+	regval &= ADP5061_CHG_CURR_ITRK_DEAD_MSK;
+	val->intval = adp5061_prechg_current[regval] * 1000;
+
+	return ret;
+}
+
+static int adp5061_set_prechg_current(struct adp5061_state *st, int val)
+{
+	int index;
+
+	/* Convert from uA to mA */
+	val /= 1000;
+	index = adp5061_get_array_index(adp5061_prechg_current,
+					ARRAY_SIZE(adp5061_prechg_current),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_CHG_CURR,
+				  ADP5061_CHG_CURR_ITRK_DEAD_MSK,
+				  ADP5061_CHG_CURR_ITRK_DEAD_MODE(index));
+}
+
+static int adp5061_get_vweak_th(struct adp5061_state *st,
+				union power_supply_propval *val)
+{
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(st->regmap, ADP5061_VOLTAGE_TH, &regval);
+	if (ret < 0)
+		return ret;
+
+	regval &= ADP5061_VOLTAGE_TH_VWEAK_MSK;
+	val->intval = adp5061_vweak_th[regval] * 1000;
+
+	return ret;
+}
+
+static int adp5061_set_vweak_th(struct adp5061_state *st, int val)
+{
+	int index;
+
+	/* Convert from uV to mV */
+	val /= 1000;
+	index = adp5061_get_array_index(adp5061_vweak_th,
+					ARRAY_SIZE(adp5061_vweak_th),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_VOLTAGE_TH,
+				  ADP5061_VOLTAGE_TH_VWEAK_MSK,
+				  ADP5061_VOLTAGE_TH_VWEAK_MODE(index));
+}
+
+static int adp5061_get_chg_type(struct adp5061_state *st,
+				union power_supply_propval *val)
+{
+	u8 status1, status2;
+	int chg_type, ret;
+
+	ret = adp5061_get_status(st, &status1, &status2);
+	if (ret < 0)
+		return ret;
+
+	chg_type = adp5061_chg_type[ADP5061_CHG_STATUS_1_CHG_STATUS(status1)];
+	if (chg_type > ADP5061_CHG_FAST_CV)
+		val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+	else
+		val->intval = chg_type;
+
+	return ret;
+}
+
+static int adp5061_get_charger_status(struct adp5061_state *st,
+				      union power_supply_propval *val)
+{
+	u8 status1, status2;
+	int ret;
+
+	ret = adp5061_get_status(st, &status1, &status2);
+	if (ret < 0)
+		return ret;
+
+	switch (ADP5061_CHG_STATUS_1_CHG_STATUS(status1)) {
+	case ADP5061_CHG_OFF:
+		val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+		break;
+	case ADP5061_CHG_TRICKLE:
+	case ADP5061_CHG_FAST_CC:
+	case ADP5061_CHG_FAST_CV:
+		val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		break;
+	case ADP5061_CHG_COMPLETE:
+		val->intval = POWER_SUPPLY_STATUS_FULL;
+		break;
+	case ADP5061_CHG_TIMER_EXP:
+		/* The battery must be discharging if there is a charge fault */
+		val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+	default:
+		val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+	}
+
+	return ret;
+}
+
+static int adp5061_get_battery_status(struct adp5061_state *st,
+				      union power_supply_propval *val)
+{
+	u8 status1, status2;
+	int ret;
+
+	ret = adp5061_get_status(st, &status1, &status2);
+	if (ret < 0)
+		return ret;
+
+	switch (ADP5061_CHG_STATUS_2_BAT_STATUS(status2)) {
+	case 0x0: /* Battery monitor off */
+	case 0x1: /* No battery */
+		val->intval = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
+		break;
+	case 0x2: /* VBAT < VTRK */
+		val->intval = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
+		break;
+	case 0x3: /* VTRK < VBAT_SNS < VWEAK */
+		val->intval = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
+		break;
+	case 0x4: /* VBAT_SNS > VWEAK */
+		val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int adp5061_get_termination_current(struct adp5061_state *st,
+					   union power_supply_propval *val)
+{
+	unsigned int regval;
+	int ret;
+
+	ret = regmap_read(st->regmap, ADP5061_IEND, &regval);
+	if (ret < 0)
+		return ret;
+
+	regval = (regval & ADP5061_IEND_IEND_MSK) >> 5;
+	val->intval = adp5061_iend[regval];
+
+	return ret;
+}
+
+static int adp5061_set_termination_current(struct adp5061_state *st, int val)
+{
+	int index;
+
+	index = adp5061_get_array_index(adp5061_iend,
+					ARRAY_SIZE(adp5061_iend),
+					val);
+	if (index < 0)
+		return index;
+
+	return regmap_update_bits(st->regmap, ADP5061_IEND,
+				  ADP5061_IEND_IEND_MSK,
+				  ADP5061_IEND_IEND_MODE(index));
+}
+
+static int adp5061_get_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				union power_supply_propval *val)
+{
+	struct adp5061_state *st = power_supply_get_drvdata(psy);
+	u8 status1, status2;
+	int mode, ret;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_PRESENT:
+		ret = adp5061_get_status(st, &status1, &status2);
+		if (ret < 0)
+			return ret;
+
+		mode = ADP5061_CHG_STATUS_2_BAT_STATUS(status2);
+		if (mode == ADP5061_NO_BATTERY)
+			val->intval = 0;
+		else
+			val->intval = 1;
+		break;
+	case POWER_SUPPLY_PROP_CHARGE_TYPE:
+		return adp5061_get_chg_type(st, val);
+	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+		/* This property is used to indicate the input current
+		 * limit into VINx (ILIM)
+		 */
+		return adp5061_get_input_current_limit(st, val);
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+		/* This property is used to indicate the termination
+		 * voltage (VTRM)
+		 */
+		return adp5061_get_max_voltage(st, val);
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+		/*
+		 * This property is used to indicate the trickle to fast
+		 * charge threshold (VTRK_DEAD)
+		 */
+		return adp5061_get_min_voltage(st, val);
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+		/* This property is used to indicate the charging
+		 * voltage limit (CHG_VLIM)
+		 */
+		return adp5061_get_chg_volt_lim(st, val);
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+		/*
+		 * This property is used to indicate the value of the constant
+		 * current charge (ICHG)
+		 */
+		return adp5061_get_const_chg_current(st, val);
+	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
+		/*
+		 * This property is used to indicate the value of the trickle
+		 * and weak charge currents (ITRK_DEAD)
+		 */
+		return adp5061_get_prechg_current(st, val);
+	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+		/*
+		 * This property is used to set the VWEAK threshold
+		 * bellow this value, weak charge mode is entered
+		 * above this value, fast chargerge mode is entered
+		 */
+		return adp5061_get_vweak_th(st, val);
+	case POWER_SUPPLY_PROP_STATUS:
+		/*
+		 * Indicate the charger status in relation to power
+		 * supply status property
+		 */
+		return adp5061_get_charger_status(st, val);
+	case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
+		/*
+		 * Indicate the battery status in relation to power
+		 * supply capacity level property
+		 */
+		return adp5061_get_battery_status(st, val);
+	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+		/* Indicate the values of the termination current */
+		return adp5061_get_termination_current(st, val);
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int adp5061_set_property(struct power_supply *psy,
+				enum power_supply_property psp,
+				const union power_supply_propval *val)
+{
+	struct adp5061_state *st = power_supply_get_drvdata(psy);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+		return adp5061_set_input_current_limit(st, val->intval);
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+		return adp5061_set_max_voltage(st, val->intval);
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+		return adp5061_set_min_voltage(st, val->intval);
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+		return adp5061_set_const_chg_vmax(st, val->intval);
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+		return adp5061_set_const_chg_current(st, val->intval);
+	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
+		return adp5061_set_prechg_current(st, val->intval);
+	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+		return adp5061_set_vweak_th(st, val->intval);
+	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+		return adp5061_set_termination_current(st, val->intval);
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int adp5061_prop_writeable(struct power_supply *psy,
+				  enum power_supply_property psp)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+	case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+	case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
+	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+	case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static enum power_supply_property adp5061_props[] = {
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_CHARGE_TYPE,
+	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN,
+	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
+	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+	POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
+	POWER_SUPPLY_PROP_VOLTAGE_AVG,
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+	POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
+};
+
+static const struct regmap_config adp5061_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+static const struct power_supply_desc adp5061_desc = {
+	.name			= "adp5061",
+	.type			= POWER_SUPPLY_TYPE_USB,
+	.get_property		= adp5061_get_property,
+	.set_property		= adp5061_set_property,
+	.property_is_writeable	= adp5061_prop_writeable,
+	.properties		= adp5061_props,
+	.num_properties		= ARRAY_SIZE(adp5061_props),
+};
+
+static int adp5061_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct power_supply_config psy_cfg = {};
+	struct adp5061_state *st;
+
+	st = devm_kzalloc(&client->dev, sizeof(*st), GFP_KERNEL);
+	if (!st)
+		return -ENOMEM;
+
+	st->client = client;
+	st->regmap = devm_regmap_init_i2c(client,
+					  &adp5061_regmap_config);
+	if (IS_ERR(st->regmap)) {
+		dev_err(&client->dev, "Failed to initialize register map\n");
+		return -EINVAL;
+	}
+
+	i2c_set_clientdata(client, st);
+	psy_cfg.drv_data = st;
+
+	st->psy = devm_power_supply_register(&client->dev,
+					     &adp5061_desc,
+					     &psy_cfg);
+
+	if (IS_ERR(st->psy)) {
+		dev_err(&client->dev, "Failed to register power supply\n");
+		return PTR_ERR(st->psy);
+	}
+
+	return 0;
+}
+
+static const struct i2c_device_id adp5061_id[] = {
+	{ "adp5061", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, adp5061_id);
+
+static struct i2c_driver adp5061_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+	},
+	.probe = adp5061_probe,
+	.id_table = adp5061_id,
+};
+module_i2c_driver(adp5061_driver);
+
+MODULE_DESCRIPTION("Analog Devices adp5061 battery charger driver");
+MODULE_AUTHOR("Stefan Popa <stefan.popa@analog.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
index 44f70dcea61e..42001df4bd13 100644
--- a/drivers/power/supply/axp20x_usb_power.c
+++ b/drivers/power/supply/axp20x_usb_power.c
@@ -222,6 +222,7 @@ static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power,
 	case 100000:
 		if (power->axp20x_id == AXP221_ID)
 			return -EINVAL;
+		/* fall through */
 	case 500000:
 	case 900000:
 		val = (900000 - intval) / 400000;
diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c
index 6e1bc14c3304..735658ee1c60 100644
--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -718,7 +718,7 @@ static int charger_init_hw_regs(struct axp288_chrg_info *info)
 	}
 
 	/* Determine charge current limit */
-	cc = (ret & CHRG_CCCV_CC_MASK) >> CHRG_CCCV_CC_BIT_POS;
+	cc = (val & CHRG_CCCV_CC_MASK) >> CHRG_CCCV_CC_BIT_POS;
 	cc = (cc * CHRG_CCCV_CC_LSB_RES) + CHRG_CCCV_CC_OFFSET;
 	info->cc = cc;
 
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index d44ed8e17c47..f022e1b550df 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -26,7 +26,6 @@
  * http://www.ti.com/product/bq27510-g1
  * http://www.ti.com/product/bq27510-g2
  * http://www.ti.com/product/bq27510-g3
- * http://www.ti.com/product/bq27520-g4
  * http://www.ti.com/product/bq27520-g1
  * http://www.ti.com/product/bq27520-g2
  * http://www.ti.com/product/bq27520-g3
@@ -40,7 +39,9 @@
  * http://www.ti.com/product/bq27545-g1
  * http://www.ti.com/product/bq27421-g1
  * http://www.ti.com/product/bq27425-g1
+ * http://www.ti.com/product/bq27426
  * http://www.ti.com/product/bq27411-g1
+ * http://www.ti.com/product/bq27441-g1
  * http://www.ti.com/product/bq27621-g1
  */
 
diff --git a/drivers/power/supply/cros_usbpd-charger.c b/drivers/power/supply/cros_usbpd-charger.c
new file mode 100644
index 000000000000..688a16bacfbb
--- /dev/null
+++ b/drivers/power/supply/cros_usbpd-charger.c
@@ -0,0 +1,545 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Power supply driver for ChromeOS EC based USB PD Charger.
+ *
+ * Copyright (c) 2014 - 2018 Google, Inc
+ */
+
+#include <linux/module.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/slab.h>
+
+#define CHARGER_DIR_NAME			"CROS_USBPD_CHARGER%d"
+#define CHARGER_DIR_NAME_LENGTH			sizeof(CHARGER_DIR_NAME)
+#define CHARGER_CACHE_UPDATE_DELAY		msecs_to_jiffies(500)
+#define CHARGER_MANUFACTURER_MODEL_LENGTH	32
+
+#define DRV_NAME "cros-usbpd-charger"
+
+struct port_data {
+	int port_number;
+	char name[CHARGER_DIR_NAME_LENGTH];
+	char manufacturer[CHARGER_MANUFACTURER_MODEL_LENGTH];
+	char model_name[CHARGER_MANUFACTURER_MODEL_LENGTH];
+	struct power_supply *psy;
+	struct power_supply_desc psy_desc;
+	int psy_usb_type;
+	int psy_online;
+	int psy_status;
+	int psy_current_max;
+	int psy_voltage_max_design;
+	int psy_voltage_now;
+	int psy_power_max;
+	struct charger_data *charger;
+	unsigned long last_update;
+};
+
+struct charger_data {
+	struct device *dev;
+	struct cros_ec_dev *ec_dev;
+	struct cros_ec_device *ec_device;
+	int num_charger_ports;
+	int num_registered_psy;
+	struct port_data *ports[EC_USB_PD_MAX_PORTS];
+	struct notifier_block notifier;
+};
+
+static enum power_supply_property cros_usbpd_charger_props[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_CURRENT_MAX,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_MODEL_NAME,
+	POWER_SUPPLY_PROP_MANUFACTURER,
+	POWER_SUPPLY_PROP_USB_TYPE
+};
+
+static enum power_supply_usb_type cros_usbpd_charger_usb_types[] = {
+	POWER_SUPPLY_USB_TYPE_UNKNOWN,
+	POWER_SUPPLY_USB_TYPE_SDP,
+	POWER_SUPPLY_USB_TYPE_DCP,
+	POWER_SUPPLY_USB_TYPE_CDP,
+	POWER_SUPPLY_USB_TYPE_C,
+	POWER_SUPPLY_USB_TYPE_PD,
+	POWER_SUPPLY_USB_TYPE_PD_DRP,
+	POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID
+};
+
+static int cros_usbpd_charger_ec_command(struct charger_data *charger,
+					 unsigned int version,
+					 unsigned int command,
+					 void *outdata,
+					 unsigned int outsize,
+					 void *indata,
+					 unsigned int insize)
+{
+	struct cros_ec_dev *ec_dev = charger->ec_dev;
+	struct cros_ec_command *msg;
+	int ret;
+
+	msg = kzalloc(sizeof(*msg) + max(outsize, insize), GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
+	msg->version = version;
+	msg->command = ec_dev->cmd_offset + command;
+	msg->outsize = outsize;
+	msg->insize = insize;
+
+	if (outsize)
+		memcpy(msg->data, outdata, outsize);
+
+	ret = cros_ec_cmd_xfer_status(charger->ec_device, msg);
+	if (ret >= 0 && insize)
+		memcpy(indata, msg->data, insize);
+
+	kfree(msg);
+	return ret;
+}
+
+static int cros_usbpd_charger_get_num_ports(struct charger_data *charger)
+{
+	struct ec_response_usb_pd_ports resp;
+	int ret;