[PATCH v2 1/2] power: supply: bq25980 Apply datasheet revision changes

[PATCH v2 1/2] power: supply: bq25980 Apply datasheet revision changes

[Ricardo Rivera-Matos]

The latest datasheet revision for BQ25980, BQ25975, and BQ25960 changed

various register step sizes and offset values. 

This patch changes the following header file

values for POWER_SUPPLY_PROP_CURRENT_NOW, 

POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,

POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,

POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,

POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT, and POWER_SUPPLY_PROP_VOLTAGE_NOW.

Additionally, this patch adjusts bq25980_get_input_curr_lim(),

bq25980_set_input_curr_lim(), bq25980_get_const_charge_curr(), and

bq25980_set_const_charge_curr() to perform the get/set math correctly.

Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
---
 drivers/power/supply/bq25980_charger.c | 141 ++++++++++++++++++++-----
 drivers/power/supply/bq25980_charger.h |  77 ++++++++++----
 2 files changed, 173 insertions(+), 45 deletions(-)

diff --git a/drivers/power/supply/bq25980_charger.c b/drivers/power/supply/bq25980_charger.c
index 530ff4025b31..7c489a9e8877 100644
--- a/drivers/power/supply/bq25980_charger.c
+++ b/drivers/power/supply/bq25980_charger.c
@@ -52,6 +52,10 @@ struct bq25980_chip_info {
 	int busocp_byp_max;
 	int busocp_sc_min;
 	int busocp_byp_min;
+	int busocp_sc_step;
+	int busocp_byp_step;
+	int busocp_sc_offset;
+	int busocp_byp_offset;
 
 	int busovp_sc_def;
 	int busovp_byp_def;
@@ -73,6 +77,20 @@ struct bq25980_chip_info {
 
 	int batocp_def;
 	int batocp_max;
+	int batocp_min;
+	int batocp_step;
+
+	int vbus_adc_step;
+	int vbus_adc_offset;
+
+	int ibus_adc_step;
+	int ibus_adc_offset;
+
+	int vbat_adc_step;
+	int vbat_adc_offset;
+
+	int ibat_adc_step;
+	int ibat_adc_offset;
 };
 
 struct bq25980_init_data {
@@ -275,13 +293,22 @@ static int bq25980_watchdog_time[BQ25980_NUM_WD_VAL] = {5000, 10000, 50000,
 static int bq25980_get_input_curr_lim(struct bq25980_device *bq)
 {
 	unsigned int busocp_reg_code;
+	int offset, step;
 	int ret;
 
+	if (bq->state.bypass) {
+		step = bq->chip_info->busocp_byp_step;
+		offset = bq->chip_info->busocp_byp_offset;
+	} else {
+		step = bq->chip_info->busocp_sc_step;
+		offset = bq->chip_info->busocp_sc_offset;
+	}
+
 	ret = regmap_read(bq->regmap, BQ25980_BUSOCP, &busocp_reg_code);
 	if (ret)
 		return ret;
 
-	return (busocp_reg_code * BQ25980_BUSOCP_STEP_uA) + BQ25980_BUSOCP_OFFSET_uA;
+	return (busocp_reg_code * step) + offset;
 }
 
 static int bq25980_set_hiz(struct bq25980_device *bq, int setting)
@@ -293,6 +320,7 @@ static int bq25980_set_hiz(struct bq25980_device *bq, int setting)
 static int bq25980_set_input_curr_lim(struct bq25980_device *bq, int busocp)
 {
 	unsigned int busocp_reg_code;
+	int step, offset;
 	int ret;
 
 	if (!busocp)
@@ -303,13 +331,17 @@ static int bq25980_set_input_curr_lim(struct bq25980_device *bq, int busocp)
 	if (busocp < BQ25980_BUSOCP_MIN_uA)
 		busocp = BQ25980_BUSOCP_MIN_uA;
 
-	if (bq->state.bypass)
+	if (bq->state.bypass) {
 		busocp = min(busocp, bq->chip_info->busocp_sc_max);
-	else
+		step = bq->chip_info->busocp_byp_step;
+		offset = bq->chip_info->busocp_byp_offset;
+	} else {
 		busocp = min(busocp, bq->chip_info->busocp_byp_max);
+		step = bq->chip_info->busocp_sc_step;
+		offset = bq->chip_info->busocp_sc_offset;
+	}
 
-	busocp_reg_code = (busocp - BQ25980_BUSOCP_OFFSET_uA)
-						/ BQ25980_BUSOCP_STEP_uA;
+	busocp_reg_code = (busocp - offset) / step;
 
 	ret = regmap_write(bq->regmap, BQ25980_BUSOCP, busocp_reg_code);
 	if (ret)
@@ -374,6 +406,7 @@ static int bq25980_set_input_volt_lim(struct bq25980_device *bq, int busovp)
 
 static int bq25980_get_const_charge_curr(struct bq25980_device *bq)
 {
+	int step = bq->chip_info->batocp_step;
 	unsigned int batocp_reg_code;
 	int ret;
 
@@ -381,19 +414,20 @@ static int bq25980_get_const_charge_curr(struct bq25980_device *bq)
 	if (ret)
 		return ret;
 
-	return (batocp_reg_code & BQ25980_BATOCP_MASK) *
-						BQ25980_BATOCP_STEP_uA;
+	return (batocp_reg_code & BQ25980_BATOCP_MASK) * step;
 }
 
 static int bq25980_set_const_charge_curr(struct bq25980_device *bq, int batocp)
 {
+	int step = bq->chip_info->batocp_step;
+	int max = bq->chip_info->batocp_max;
+	int min = bq->chip_info->batocp_min;
 	unsigned int batocp_reg_code;
 	int ret;
 
-	batocp = max(batocp, BQ25980_BATOCP_MIN_uA);
-	batocp = min(batocp, bq->chip_info->batocp_max);
+	batocp = clamp(batocp, min, max);
 
-	batocp_reg_code = batocp / BQ25980_BATOCP_STEP_uA;
+	batocp_reg_code = batocp / step;
 
 	ret = regmap_update_bits(bq->regmap, BQ25980_BATOCP,
 				BQ25980_BATOCP_MASK, batocp_reg_code);
@@ -490,10 +524,8 @@ static int bq25980_get_adc_ibus(struct bq25980_device *bq)
 
 	ibus_adc = (ibus_adc_msb << 8) | ibus_adc_lsb;
 
-	if (ibus_adc_msb & BQ25980_ADC_POLARITY_BIT)
-		return ((ibus_adc ^ 0xffff) + 1) * BQ25980_ADC_CURR_STEP_uA;
-
-	return ibus_adc * BQ25980_ADC_CURR_STEP_uA;
+	return (ibus_adc * bq->chip_info->ibus_adc_step) +
+					bq->chip_info->ibus_adc_offset;
 }
 
 static int bq25980_get_adc_vbus(struct bq25980_device *bq)
@@ -512,7 +544,8 @@ static int bq25980_get_adc_vbus(struct bq25980_device *bq)
 
 	vbus_adc = (vbus_adc_msb << 8) | vbus_adc_lsb;
 
-	return vbus_adc * BQ25980_ADC_VOLT_STEP_uV;
+	return (vbus_adc * bq->chip_info->vbus_adc_step) +
+					bq->chip_info->vbus_adc_offset;
 }
 
 static int bq25980_get_ibat_adc(struct bq25980_device *bq)
@@ -531,29 +564,31 @@ static int bq25980_get_ibat_adc(struct bq25980_device *bq)
 
 	ibat_adc = (ibat_adc_msb << 8) | ibat_adc_lsb;
 
-	if (ibat_adc_msb & BQ25980_ADC_POLARITY_BIT)
-		return ((ibat_adc ^ 0xffff) + 1) * BQ25980_ADC_CURR_STEP_uA;
+	ibat_adc = clamp(ibat_adc, BQ25960_ADC_IBAT_MIN_CODE,
+					BQ25960_ADC_IBAT_MAX_CODE);
 
-	return ibat_adc * BQ25980_ADC_CURR_STEP_uA;
+	return (ibat_adc * bq->chip_info->ibat_adc_step) +
+					bq->chip_info->ibat_adc_offset;
 }
 
 static int bq25980_get_adc_vbat(struct bq25980_device *bq)
 {
-	int vsys_adc_lsb, vsys_adc_msb;
-	u16 vsys_adc;
+	int vbat_adc_lsb, vbat_adc_msb;
+	u16 vbat_adc;
 	int ret;
 
-	ret = regmap_read(bq->regmap, BQ25980_VBAT_ADC_MSB, &vsys_adc_msb);
+	ret = regmap_read(bq->regmap, BQ25980_VBAT_ADC_MSB, &vbat_adc_msb);
 	if (ret)
 		return ret;
 
-	ret = regmap_read(bq->regmap, BQ25980_VBAT_ADC_LSB, &vsys_adc_lsb);
+	ret = regmap_read(bq->regmap, BQ25980_VBAT_ADC_LSB, &vbat_adc_lsb);
 	if (ret)
 		return ret;
 
-	vsys_adc = (vsys_adc_msb << 8) | vsys_adc_lsb;
+	vbat_adc = (vbat_adc_msb << 8) | vbat_adc_lsb;
 
-	return vsys_adc * BQ25980_ADC_VOLT_STEP_uV;
+	return (vbat_adc * bq->chip_info->vbat_adc_step) +
+					bq->chip_info->vbat_adc_offset;
 }
 
 static int bq25980_get_state(struct bq25980_device *bq,
@@ -984,6 +1019,10 @@ static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
 		.busocp_sc_max = BQ25980_BUSOCP_SC_MAX_uA,
 		.busocp_byp_max = BQ25980_BUSOCP_BYP_MAX_uA,
 		.busocp_byp_min = BQ25980_BUSOCP_MIN_uA,
+		.busocp_sc_step = BQ25980_BUSOCP_STEP_uA,
+		.busocp_byp_step = BQ25980_BUSOCP_STEP_uA,
+		.busocp_sc_offset = BQ25980_BUSOCP_OFFSET_uA,
+		.busocp_byp_offset = BQ25980_BUSOCP_OFFSET_uA,
 
 		.busovp_sc_def = BQ25980_BUSOVP_DFLT_uV,
 		.busovp_byp_def = BQ25980_BUSOVP_BYPASS_DFLT_uV,
@@ -1004,6 +1043,20 @@ static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
 
 		.batocp_def = BQ25980_BATOCP_DFLT_uA,
 		.batocp_max = BQ25980_BATOCP_MAX_uA,
+		.batocp_min = BQ25980_BATOCP_MIN_uA,
+		.batocp_step = BQ25980_BATOCP_STEP_uA,
+
+		.vbus_adc_step = BQ25980_ADC_VBUS_STEP_uV,
+		.vbus_adc_offset = BQ25980_ADC_VBUS_OFFSET_uV,
+
+		.ibus_adc_step = BQ25980_ADC_IBUS_STEP_uA,
+		.ibus_adc_offset = BQ25980_ADC_IBUS_OFFSET_uA,
+
+		.vbat_adc_step = BQ25980_ADC_VBAT_STEP_uV,
+		.vbat_adc_offset = BQ25980_ADC_VBAT_OFFSET_uV,
+
+		.ibat_adc_step = BQ25980_ADC_IBAT_STEP_uA,
+		.ibat_adc_offset = BQ25980_ADC_IBAT_OFFSET_uA,
 	},
 
 	[BQ25975] = {
@@ -1015,6 +1068,10 @@ static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
 		.busocp_sc_max = BQ25975_BUSOCP_SC_MAX_uA,
 		.busocp_byp_min = BQ25980_BUSOCP_MIN_uA,
 		.busocp_byp_max = BQ25975_BUSOCP_BYP_MAX_uA,
+		.busocp_sc_step = BQ25980_BUSOCP_STEP_uA,
+		.busocp_byp_step = BQ25980_BUSOCP_STEP_uA,
+		.busocp_sc_offset = BQ25980_BUSOCP_OFFSET_uA,
+		.busocp_byp_offset = BQ25980_BUSOCP_OFFSET_uA,
 
 		.busovp_sc_def = BQ25975_BUSOVP_DFLT_uV,
 		.busovp_byp_def = BQ25975_BUSOVP_BYPASS_DFLT_uV,
@@ -1035,6 +1092,20 @@ static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
 
 		.batocp_def = BQ25980_BATOCP_DFLT_uA,
 		.batocp_max = BQ25980_BATOCP_MAX_uA,
+		.batocp_min = BQ25980_BATOCP_MIN_uA,
+		.batocp_step = BQ25980_BATOCP_STEP_uA,
+
+		.vbus_adc_step = BQ25975_ADC_VBUS_STEP_uV,
+		.vbus_adc_offset = BQ25975_ADC_VBUS_OFFSET_uV,
+
+		.ibus_adc_step = BQ25975_ADC_IBUS_STEP_uA,
+		.ibus_adc_offset = BQ25975_ADC_IBUS_OFFSET_uA,
+
+		.vbat_adc_step = BQ25975_ADC_VBAT_STEP_uV,
+		.vbat_adc_offset = BQ25975_ADC_VBAT_OFFSET_uV,
+
+		.ibat_adc_step = BQ25975_ADC_IBAT_STEP_uA,
+		.ibat_adc_offset = BQ25975_ADC_IBAT_OFFSET_uA,
 	},
 
 	[BQ25960] = {
@@ -1042,10 +1113,14 @@ static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
 		.regmap_config = &bq25960_regmap_config,
 
 		.busocp_def = BQ25960_BUSOCP_DFLT_uA,
-		.busocp_sc_min = BQ25960_BUSOCP_SC_MAX_uA,
+		.busocp_sc_min = BQ25960_BUSOCP_SC_MIN_uA,
 		.busocp_sc_max = BQ25960_BUSOCP_SC_MAX_uA,
-		.busocp_byp_min = BQ25960_BUSOCP_SC_MAX_uA,
+		.busocp_byp_min = BQ25960_BUSOCP_BYP_MIN_uA,
 		.busocp_byp_max = BQ25960_BUSOCP_BYP_MAX_uA,
+		.busocp_sc_step = BQ25960_BUSOCP_SC_STEP_uA,
+		.busocp_byp_step = BQ25960_BUSOCP_BYP_STEP_uA,
+		.busocp_sc_offset = BQ25960_BUSOCP_SC_OFFSET_uA,
+		.busocp_byp_offset = BQ25960_BUSOCP_BYP_OFFSET_uA,
 
 		.busovp_sc_def = BQ25975_BUSOVP_DFLT_uV,
 		.busovp_byp_def = BQ25975_BUSOVP_BYPASS_DFLT_uV,
@@ -1066,6 +1141,20 @@ static const struct bq25980_chip_info bq25980_chip_info_tbl[] = {
 
 		.batocp_def = BQ25960_BATOCP_DFLT_uA,
 		.batocp_max = BQ25960_BATOCP_MAX_uA,
+		.batocp_min = BQ25960_BATOCP_MIN_uA,
+		.batocp_step = BQ25960_BATOCP_STEP_uA,
+
+		.vbus_adc_step = BQ25960_ADC_VBUS_STEP_uV,
+		.vbus_adc_offset = BQ25960_ADC_VBUS_OFFSET_uV,
+
+		.ibus_adc_step = BQ25960_ADC_IBUS_STEP_uA,
+		.ibus_adc_offset = BQ25960_ADC_IBUS_OFFSET_uA,
+
+		.vbat_adc_step = BQ25960_ADC_VBAT_STEP_uV,
+		.vbat_adc_offset = BQ25960_ADC_VBAT_OFFSET_uV,
+
+		.ibat_adc_step = BQ25960_ADC_IBAT_STEP_uA,
+		.ibat_adc_offset = BQ25960_ADC_IBAT_OFFSET_uA,
 	},
 };
 
diff --git a/drivers/power/supply/bq25980_charger.h b/drivers/power/supply/bq25980_charger.h
index 39f94eba5f6c..7394bd9d7263 100644
--- a/drivers/power/supply/bq25980_charger.h
+++ b/drivers/power/supply/bq25980_charger.h
@@ -66,22 +66,29 @@
 #define BQ25980_DEGLITCH_TIME		0x39
 #define BQ25980_CHRGR_CTRL_6	0x3A
 
-#define BQ25980_BUSOCP_STEP_uA		250000
-#define BQ25980_BUSOCP_OFFSET_uA	1000000
+#define BQ25980_BUSOCP_STEP_uA		262500
+#define BQ25980_BUSOCP_OFFSET_uA	1050000
 
-#define BQ25980_BUSOCP_DFLT_uA		4250000
-#define BQ25975_BUSOCP_DFLT_uA		4250000
+#define BQ25960_BUSOCP_SC_STEP_uA	254375
+#define BQ25960_BUSOCP_SC_OFFSET_uA	1017500
+#define BQ25960_BUSOCP_BYP_STEP_uA	261875
+#define BQ25960_BUSOCP_BYP_OFFSET_uA	1047500
+
+#define BQ25980_BUSOCP_DFLT_uA		4462500
+#define BQ25975_BUSOCP_DFLT_uA		4462500
 #define BQ25960_BUSOCP_DFLT_uA		3250000
 
-#define BQ25980_BUSOCP_MIN_uA		1000000
+#define BQ25980_BUSOCP_MIN_uA		1050000
+#define BQ25960_BUSOCP_SC_MIN_uA	1017500
+#define BQ25960_BUSOCP_BYP_MIN_uA	1047500
 
-#define BQ25980_BUSOCP_SC_MAX_uA	5750000
-#define BQ25975_BUSOCP_SC_MAX_uA	5750000
-#define BQ25960_BUSOCP_SC_MAX_uA	3750000
+#define BQ25980_BUSOCP_SC_MAX_uA	6037500
+#define BQ25975_BUSOCP_SC_MAX_uA	6037500
+#define BQ25960_BUSOCP_SC_MAX_uA	4578750
 
-#define BQ25980_BUSOCP_BYP_MAX_uA	8500000
-#define BQ25975_BUSOCP_BYP_MAX_uA	8500000
-#define BQ25960_BUSOCP_BYP_MAX_uA	5750000
+#define BQ25980_BUSOCP_BYP_MAX_uA	8925000
+#define BQ25975_BUSOCP_BYP_MAX_uA	8925000
+#define BQ25960_BUSOCP_BYP_MAX_uA	6808750
 
 #define BQ25980_BUSOVP_SC_STEP_uV	100000
 #define BQ25975_BUSOVP_SC_STEP_uV	50000
@@ -120,11 +127,11 @@
 
 #define BQ25980_BATOVP_STEP_uV		20000
 #define BQ25975_BATOVP_STEP_uV		10000
-#define BQ25960_BATOVP_STEP_uV		10000
+#define BQ25960_BATOVP_STEP_uV		9985
 
 #define BQ25980_BATOVP_OFFSET_uV	7000000
 #define BQ25975_BATOVP_OFFSET_uV	3500000
-#define BQ25960_BATOVP_OFFSET_uV	3500000
+#define BQ25960_BATOVP_OFFSET_uV	3491000
 
 #define BQ25980_BATOVP_DFLT_uV		14000000
 #define BQ25975_BATOVP_DFLT_uV		8900000
@@ -132,24 +139,26 @@
 
 #define BQ25980_BATOVP_MIN_uV		7000000
 #define BQ25975_BATOVP_MIN_uV		3500000
-#define BQ25960_BATOVP_MIN_uV		3500000
+#define BQ25960_BATOVP_MIN_uV		3491000
 
 #define BQ25980_BATOVP_MAX_uV		9540000
 #define BQ25975_BATOVP_MAX_uV		4770000
-#define BQ25960_BATOVP_MAX_uV		4770000
+#define BQ25960_BATOVP_MAX_uV		4759000
 
 #define BQ25980_BATOCP_STEP_uA		100000
+#define BQ25960_BATOCP_STEP_uA		102500
 
 #define BQ25980_BATOCP_MASK		GENMASK(6, 0)
 
 #define BQ25980_BATOCP_DFLT_uA		8100000
-#define BQ25960_BATOCP_DFLT_uA		6100000
+#define BQ25960_BATOCP_DFLT_uA		7277500
 
 #define BQ25980_BATOCP_MIN_uA		2000000
+#define BQ25960_BATOCP_MIN_uA		2050000
 
 #define BQ25980_BATOCP_MAX_uA		11000000
 #define BQ25975_BATOCP_MAX_uA		11000000
-#define BQ25960_BATOCP_MAX_uA		7000000
+#define BQ25960_BATOCP_MAX_uA		8712500
 
 #define BQ25980_ENABLE_HIZ		0xff
 #define BQ25980_DISABLE_HIZ		0x0
@@ -165,10 +174,40 @@
 #define BQ25980_EN_HIZ			BIT(6)
 #define BQ25980_ADC_EN			BIT(7)
 
-#define BQ25980_ADC_VOLT_STEP_uV        1000
-#define BQ25980_ADC_CURR_STEP_uA        1000
 #define BQ25980_ADC_POLARITY_BIT	BIT(7)
 
+#define BQ25980_ADC_IBUS_STEP_uA	1070
+#define BQ25980_ADC_IBUS_OFFSET_uA	0
+#define BQ25980_ADC_VBUS_STEP_uV	1007
+#define BQ25980_ADC_VBUS_OFFSET_uV	-60000
+
+#define BQ25980_ADC_IBAT_STEP_uA	1000
+#define BQ25980_ADC_IBAT_OFFSET_uA	0
+#define BQ25980_ADC_VBAT_STEP_uV	1006
+#define BQ25980_ADC_VBAT_OFFSET_uV	0
+
+#define BQ25975_ADC_IBUS_STEP_uA	1070
+#define BQ25975_ADC_IBUS_OFFSET_uA	0
+#define BQ25975_ADC_VBUS_STEP_uV	1003
+#define BQ25975_ADC_VBUS_OFFSET_uV	-40000
+
+#define BQ25975_ADC_IBAT_STEP_uA	1000
+#define BQ25975_ADC_IBAT_OFFSET_uA	12000
+#define BQ25975_ADC_VBAT_STEP_uV	1001
+#define BQ25975_ADC_VBAT_OFFSET_uV	10000
+
+#define BQ25960_ADC_IBUS_STEP_uA	1000
+#define BQ25960_ADC_IBUS_OFFSET_uA	65000
+#define BQ25960_ADC_VBUS_STEP_uV	1002
+#define BQ25960_ADC_VBUS_OFFSET_uV	0
+
+#define BQ25960_ADC_IBAT_STEP_uA	999
+#define BQ25960_ADC_IBAT_OFFSET_uA	-150
+#define BQ25960_ADC_IBAT_MIN_CODE	0x96
+#define BQ25960_ADC_IBAT_MAX_CODE	0x2ee0
+#define BQ25960_ADC_VBAT_STEP_uV	1017
+#define BQ25960_ADC_VBAT_OFFSET_uV	1000
+
 #define BQ25980_WATCHDOG_MASK	GENMASK(4, 3)
 #define BQ25980_WATCHDOG_DIS	BIT(2)
 #define BQ25980_WATCHDOG_MAX	300000
-- 
2.30.0

[PATCH v2 2/2] power: supply: bq25980: Move props from battery node

[Ricardo Rivera-Matos]

Currently POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and

POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE are exposed on the battery node

and this is incorrect.

This patch exposes POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and

POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE on the charger node rather

than the battery node.

Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
---
 drivers/power/supply/bq25980_charger.c | 40 ++++++++------------------
 1 file changed, 12 insertions(+), 28 deletions(-)

diff --git a/drivers/power/supply/bq25980_charger.c b/drivers/power/supply/bq25980_charger.c
index 7c489a9e8877..ac73e2c19238 100644
--- a/drivers/power/supply/bq25980_charger.c
+++ b/drivers/power/supply/bq25980_charger.c
@@ -641,33 +641,6 @@ static int bq25980_get_state(struct bq25980_device *bq,
 	return 0;
 }
 
-static int bq25980_set_battery_property(struct power_supply *psy,
-				enum power_supply_property psp,
-				const union power_supply_propval *val)
-{
-	struct bq25980_device *bq = power_supply_get_drvdata(psy);
-	int ret = 0;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
-		ret = bq25980_set_const_charge_curr(bq, val->intval);
-		if (ret)
-			return ret;
-		break;
-
-	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
-		ret = bq25980_set_const_charge_volt(bq, val->intval);
-		if (ret)
-			return ret;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return ret;
-}
-
 static int bq25980_get_battery_property(struct power_supply *psy,
 				enum power_supply_property psp,
 				union power_supply_propval *val)
@@ -736,6 +709,18 @@ static int bq25980_set_charger_property(struct power_supply *psy,
 			return ret;
 		break;
 
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+		ret = bq25980_set_const_charge_curr(bq, val->intval);
+		if (ret)
+			return ret;
+		break;
+
+	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+		ret = bq25980_set_const_charge_volt(bq, val->intval);
+		if (ret)
+			return ret;
+		break;
+
 	default:
 		return -EINVAL;
 	}
@@ -957,7 +942,6 @@ static struct power_supply_desc bq25980_battery_desc = {
 	.name			= "bq25980-battery",
 	.type			= POWER_SUPPLY_TYPE_BATTERY,
 	.get_property		= bq25980_get_battery_property,
-	.set_property		= bq25980_set_battery_property,
 	.properties		= bq25980_battery_props,
 	.num_properties		= ARRAY_SIZE(bq25980_battery_props),
 	.property_is_writeable	= bq25980_property_is_writeable,
-- 
2.30.0

Re: [PATCH v2 1/2] power: supply: bq25980 Apply datasheet revision changes

[Krzysztof Kozlowski]

On Wed, Feb 10, 2021 at 04:56:45PM -0600, Ricardo Rivera-Matos wrote:
> The latest datasheet revision for BQ25980, BQ25975, and BQ25960 changed
> 
> various register step sizes and offset values. 
> 
> This patch changes the following header file
> 
> values for POWER_SUPPLY_PROP_CURRENT_NOW, 
> 
> POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
> 
> POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
> 
> POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
> 
> POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT, and POWER_SUPPLY_PROP_VOLTAGE_NOW.
> 
> Additionally, this patch adjusts bq25980_get_input_curr_lim(),
> 
> bq25980_set_input_curr_lim(), bq25980_get_const_charge_curr(), and
> 
> bq25980_set_const_charge_curr() to perform the get/set math correctly.

Your formatting is so odd, it is not readable. Please open "git log" and
try to write something similar to existing commits, e.g. without
additional blank line between lines.

> 
> Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
> Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
> ---
>  drivers/power/supply/bq25980_charger.c | 141 ++++++++++++++++++++-----
>  drivers/power/supply/bq25980_charger.h |  77 ++++++++++----
>  2 files changed, 173 insertions(+), 45 deletions(-)
> 
> diff --git a/drivers/power/supply/bq25980_charger.c b/drivers/power/supply/bq25980_charger.c
> index 530ff4025b31..7c489a9e8877 100644
> --- a/drivers/power/supply/bq25980_charger.c
> +++ b/drivers/power/supply/bq25980_charger.c
> @@ -52,6 +52,10 @@ struct bq25980_chip_info {
>  	int busocp_byp_max;
>  	int busocp_sc_min;
>  	int busocp_byp_min;
> +	int busocp_sc_step;
> +	int busocp_byp_step;
> +	int busocp_sc_offset;
> +	int busocp_byp_offset;

Does not look like related to changing offsets of register values in
header.

>  
>  	int busovp_sc_def;
>  	int busovp_byp_def;
> @@ -73,6 +77,20 @@ struct bq25980_chip_info {
>  
>  	int batocp_def;
>  	int batocp_max;
> +	int batocp_min;
> +	int batocp_step;
> +
> +	int vbus_adc_step;
> +	int vbus_adc_offset;
> +
> +	int ibus_adc_step;
> +	int ibus_adc_offset;
> +
> +	int vbat_adc_step;
> +	int vbat_adc_offset;
> +
> +	int ibat_adc_step;
> +	int ibat_adc_offset;
>  };
>  

Does not look like related to changing offsets of register values in
header.

>  struct bq25980_init_data {
> @@ -275,13 +293,22 @@ static int bq25980_watchdog_time[BQ25980_NUM_WD_VAL] = {5000, 10000, 50000,
>  static int bq25980_get_input_curr_lim(struct bq25980_device *bq)
>  {
>  	unsigned int busocp_reg_code;
> +	int offset, step;
>  	int ret;
>  
> +	if (bq->state.bypass) {
> +		step = bq->chip_info->busocp_byp_step;
> +		offset = bq->chip_info->busocp_byp_offset;
> +	} else {
> +		step = bq->chip_info->busocp_sc_step;
> +		offset = bq->chip_info->busocp_sc_offset;
> +	}
> +

Does not look like related to changing offsets of register values in
header.

and so on... Fix one thing at a time.

Best regards,
Krzysztof

Re: [PATCH v2 2/2] power: supply: bq25980: Move props from battery node

[Krzysztof Kozlowski]

On Wed, Feb 10, 2021 at 04:56:46PM -0600, Ricardo Rivera-Matos wrote:
> Currently POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and
> 
> POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE are exposed on the battery node
> 
> and this is incorrect.
> 
> This patch exposes POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and
> 
> POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE on the charger node rather
> 
> than the battery node.

Now it makes sense if you only formatted it in human-readable way.
Please fix your git/editor/email client/desktop unless you used such
formatting intentionally. If it was intentional, then please don't - do
like everyone else in Linux kernel (git log will help).

Best regards,
Krzysztof

> 
> Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
> Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
> ---
>  drivers/power/supply/bq25980_charger.c | 40 ++++++++------------------
>  1 file changed, 12 insertions(+), 28 deletions(-)

Re: [PATCH v2 1/2] power: supply: bq25980 Apply datasheet revision changes

[Sebastian Reichel]

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Hi,

On Thu, Feb 11, 2021 at 08:36:03AM +0100, Krzysztof Kozlowski wrote:
> On Wed, Feb 10, 2021 at 04:56:45PM -0600, Ricardo Rivera-Matos wrote:
> > The latest datasheet revision for BQ25980, BQ25975, and BQ25960 changed
> > 
> > various register step sizes and offset values. 
> > 
> > This patch changes the following header file
> > 
> > values for POWER_SUPPLY_PROP_CURRENT_NOW, 
> > 
> > POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
> > 
> > POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
> > 
> > POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
> > 
> > POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT, and POWER_SUPPLY_PROP_VOLTAGE_NOW.
> > 
> > Additionally, this patch adjusts bq25980_get_input_curr_lim(),
> > 
> > bq25980_set_input_curr_lim(), bq25980_get_const_charge_curr(), and
> > 
> > bq25980_set_const_charge_curr() to perform the get/set math correctly.
> 
> Your formatting is so odd, it is not readable. Please open "git log" and
> try to write something similar to existing commits, e.g. without
> additional blank line between lines.

Ack. This is a paint to read.

> 
> > 
> > Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
> > Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
> > ---
> >  drivers/power/supply/bq25980_charger.c | 141 ++++++++++++++++++++-----
> >  drivers/power/supply/bq25980_charger.h |  77 ++++++++++----
> >  2 files changed, 173 insertions(+), 45 deletions(-)
> > 
> > diff --git a/drivers/power/supply/bq25980_charger.c b/drivers/power/supply/bq25980_charger.c
> > index 530ff4025b31..7c489a9e8877 100644
> > --- a/drivers/power/supply/bq25980_charger.c
> > +++ b/drivers/power/supply/bq25980_charger.c
> > @@ -52,6 +52,10 @@ struct bq25980_chip_info {
> >  	int busocp_byp_max;
> >  	int busocp_sc_min;
> >  	int busocp_byp_min;
> > +	int busocp_sc_step;
> > +	int busocp_byp_step;
> > +	int busocp_sc_offset;
> > +	int busocp_byp_offset;
> 
> Does not look like related to changing offsets of register values in
> header.

well looking at the change as a whole the problem is that each
chip has different offset/step size now. Arguably this is an
atomic change. I would have queued it (fixing the commit message
while applying), but the patch also does some unrelated changes:

 - introduced usage of clamp instead of min()/max() checks
   (which is great, but should be separate commit!)
 - rename variables to something more sensible in
   bq25980_get_adc_vbat (again a great change, but should be
   separate commit)

Ricardo, please submit a new version with these changes splitted
out.

-- Sebastian

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Re: [PATCH v2 2/2] power: supply: bq25980: Move props from battery node

[Sebastian Reichel]

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Hi,

On Thu, Feb 11, 2021 at 08:38:07AM +0100, Krzysztof Kozlowski wrote:
> On Wed, Feb 10, 2021 at 04:56:46PM -0600, Ricardo Rivera-Matos wrote:
> > Currently POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and
> > POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE are exposed on the battery node
> > and this is incorrect.
> > 
> > This patch exposes POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and
> > POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE on the charger node rather
> > than the battery node.
> 
> Now it makes sense if you only formatted it in human-readable way.
> Please fix your git/editor/email client/desktop unless you used such
> formatting intentionally. If it was intentional, then please don't - do
> like everyone else in Linux kernel (git log will help).

Thanks, queued to the power-supply tree (I fixed up the broken
commit message).

-- Sebastian

> 
> Best regards,
> Krzysztof
> 
> > 
> > Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
> > Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
> > ---
> >  drivers/power/supply/bq25980_charger.c | 40 ++++++++------------------
> >  1 file changed, 12 insertions(+), 28 deletions(-)

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