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Merge branch 'ib-ab8500-5.4-rc1' into HEAD 

Immutable branch as considerable overlap with mfd, power and hwmon.
This commit is contained in:
Jonathan Cameron 2019-10-18 19:46:10 +01:00
parent 686191a7ea a77fc11156
commit 16922ffee1
16 changed files with 1495 additions and 1939 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

119
Documentation/devicetree/bindings/mfd/ab8500.txt
View File

@ -69,6 +69,18 @@ Required child device properties:
- compatible : "stericsson,ab8500-[bm|btemp|charger|fg|gpadc|gpio|ponkey|
pwm|regulator|rtc|sysctrl|usb]";
A few child devices require ADC channels from the GPADC node. Those follow the
standard bindings from iio/iio-bindings.txt and iio/adc/adc.txt
abx500-temp : io-channels "aux1" and "aux2" for measuring external
temperatures.
ab8500-fg : io-channel "main_bat_v" for measuring main battery voltage,
ab8500-btemp : io-channels "btemp_ball" and "bat_ctrl" for measuring the
battery voltage.
ab8500-charger : io-channels "main_charger_v", "main_charger_c", "vbus_v",
"usb_charger_c" for measuring voltage and current of the
different charging supplies.
Optional child device properties:
- interrupts : contains the device IRQ(s) using the 2-cell format (see above)
- interrupt-names : contains names of IRQ resource in the order in which they were
@ -102,8 +114,115 @@ ab8500 {
39 0x4>;
interrupt-names = "HW_CONV_END", "SW_CONV_END";
vddadc-supply = <&ab8500_ldo_tvout_reg>;
#address-cells = <1>;
#size-cells = <0>;
#io-channel-cells = <1>;
/* GPADC channels */
bat_ctrl: channel@1 {
reg = <0x01>;
};
btemp_ball: channel@2 {
reg = <0x02>;
};
main_charger_v: channel@3 {
reg = <0x03>;
};
acc_detect1: channel@4 {
reg = <0x04>;
};
acc_detect2: channel@5 {
reg = <0x05>;
};
adc_aux1: channel@6 {
reg = <0x06>;
};
adc_aux2: channel@7 {
reg = <0x07>;
};
main_batt_v: channel@8 {
reg = <0x08>;
};
vbus_v: channel@9 {
reg = <0x09>;
};
main_charger_c: channel@a {
reg = <0x0a>;
};
usb_charger_c: channel@b {
reg = <0x0b>;
};
bk_bat_v: channel@c {
reg = <0x0c>;
};
die_temp: channel@d {
reg = <0x0d>;
};
usb_id: channel@e {
reg = <0x0e>;
};
xtal_temp: channel@12 {
reg = <0x12>;
};
vbat_true_meas: channel@13 {
reg = <0x13>;
};
bat_ctrl_and_ibat: channel@1c {
reg = <0x1c>;
};
vbat_meas_and_ibat: channel@1d {
reg = <0x1d>;
};
vbat_true_meas_and_ibat: channel@1e {
reg = <0x1e>;
};
bat_temp_and_ibat: channel@1f {
reg = <0x1f>;
};
};
ab8500_temp {
compatible = "stericsson,abx500-temp";
io-channels = <&gpadc 0x06>,
<&gpadc 0x07>;
io-channel-name = "aux1", "aux2";
};
ab8500_battery: ab8500_battery {
stericsson,battery-type = "LIPO";
thermistor-on-batctrl;
};
ab8500_fg {
compatible = "stericsson,ab8500-fg";
battery = <&ab8500_battery>;
io-channels = <&gpadc 0x08>;
io-channel-name = "main_bat_v";
};
ab8500_btemp {
compatible = "stericsson,ab8500-btemp";
battery = <&ab8500_battery>;
io-channels = <&gpadc 0x02>,
<&gpadc 0x01>;
io-channel-name = "btemp_ball",
"bat_ctrl";
};
ab8500_charger {
compatible = "stericsson,ab8500-charger";
battery = <&ab8500_battery>;
vddadc-supply = <&ab8500_ldo_tvout_reg>;
io-channels = <&gpadc 0x03>,
<&gpadc 0x0a>,
<&gpadc 0x09>,
<&gpadc 0x0b>;
io-channel-name = "main_charger_v",
"main_charger_c",
"vbus_v",
"usb_charger_c";
};
ab8500-usb {
compatible = "stericsson,ab8500-usb";
interrupts = < 90 0x4

1
MAINTAINERS
View File

@ -2005,6 +2005,7 @@ F: drivers/dma/ste_dma40*
F: drivers/hwspinlock/u8500_hsem.c
F: drivers/i2c/busses/i2c-nomadik.c
F: drivers/i2c/busses/i2c-stu300.c
F: drivers/iio/adc/ab8500-gpadc.c
F: drivers/mfd/ab3100*
F: drivers/mfd/ab8500*
F: drivers/mfd/abx500*

3
drivers/hwmon/Kconfig
View File

@ -40,7 +40,8 @@ comment "Native drivers"
config SENSORS_AB8500
tristate "AB8500 thermal monitoring"
depends on AB8500_GPADC && AB8500_BM
depends on AB8500_GPADC && AB8500_BM && (IIO = y)
default n
help
If you say yes here you get support for the thermal sensor part
of the AB8500 chip. The driver includes thermal management for

65
drivers/hwmon/ab8500.c
View File

@ -17,20 +17,24 @@
#include <linux/hwmon-sysfs.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500-bm.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/power/ab8500.h>
#include <linux/reboot.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/iio/consumer.h>
#include "abx500.h"
#define DEFAULT_POWER_OFF_DELAY (HZ * 10)
#define THERMAL_VCC 1800
#define PULL_UP_RESISTOR 47000
/* Number of monitored sensors should not greater than NUM_SENSORS */
#define NUM_MONITORED_SENSORS 4
#define AB8500_SENSOR_AUX1 0
#define AB8500_SENSOR_AUX2 1
#define AB8500_SENSOR_BTEMP_BALL 2
#define AB8500_SENSOR_BAT_CTRL 3
#define NUM_MONITORED_SENSORS 4
struct ab8500_gpadc_cfg {
const struct abx500_res_to_temp *temp_tbl;
@ -40,7 +44,8 @@ struct ab8500_gpadc_cfg {
};
struct ab8500_temp {
struct ab8500_gpadc *gpadc;
struct iio_channel *aux1;
struct iio_channel *aux2;
struct ab8500_btemp *btemp;
struct delayed_work power_off_work;
struct ab8500_gpadc_cfg cfg;
@ -82,15 +87,21 @@ static int ab8500_read_sensor(struct abx500_temp *data, u8 sensor, int *temp)
int voltage, ret;
struct ab8500_temp *ab8500_data = data->plat_data;
if (sensor == BAT_CTRL) {
*temp = ab8500_btemp_get_batctrl_temp(ab8500_data->btemp);
} else if (sensor == BTEMP_BALL) {
if (sensor == AB8500_SENSOR_BTEMP_BALL) {
*temp = ab8500_btemp_get_temp(ab8500_data->btemp);
} else {
voltage = ab8500_gpadc_convert(ab8500_data->gpadc, sensor);
if (voltage < 0)
return voltage;
} else if (sensor == AB8500_SENSOR_BAT_CTRL) {
*temp = ab8500_btemp_get_batctrl_temp(ab8500_data->btemp);
} else if (sensor == AB8500_SENSOR_AUX1) {
ret = iio_read_channel_processed(ab8500_data->aux1, &voltage);
if (ret < 0)
return ret;
ret = ab8500_voltage_to_temp(&ab8500_data->cfg, voltage, temp);
if (ret < 0)
return ret;
} else if (sensor == AB8500_SENSOR_AUX2) {
ret = iio_read_channel_processed(ab8500_data->aux2, &voltage);
if (ret < 0)
return ret;
ret = ab8500_voltage_to_temp(&ab8500_data->cfg, voltage, temp);
if (ret < 0)
return ret;
@ -164,10 +175,6 @@ int abx500_hwmon_init(struct abx500_temp *data)
if (!ab8500_data)
return -ENOMEM;
ab8500_data->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
if (IS_ERR(ab8500_data->gpadc))
return PTR_ERR(ab8500_data->gpadc);
ab8500_data->btemp = ab8500_btemp_get();
if (IS_ERR(ab8500_data->btemp))
return PTR_ERR(ab8500_data->btemp);
@ -181,15 +188,25 @@ int abx500_hwmon_init(struct abx500_temp *data)
ab8500_data->cfg.tbl_sz = ab8500_temp_tbl_a_size;
data->plat_data = ab8500_data;
ab8500_data->aux1 = devm_iio_channel_get(&data->pdev->dev, "aux1");
if (IS_ERR(ab8500_data->aux1)) {
if (PTR_ERR(ab8500_data->aux1) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&data->pdev->dev, "failed to get AUX1 ADC channel\n");
return PTR_ERR(ab8500_data->aux1);
}
ab8500_data->aux2 = devm_iio_channel_get(&data->pdev->dev, "aux2");
if (IS_ERR(ab8500_data->aux2)) {
if (PTR_ERR(ab8500_data->aux2) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&data->pdev->dev, "failed to get AUX2 ADC channel\n");
return PTR_ERR(ab8500_data->aux2);
}
/*
* ADC_AUX1 and ADC_AUX2, connected to external NTC
* BTEMP_BALL and BAT_CTRL, fixed usage
*/
data->gpadc_addr[0] = ADC_AUX1;
data->gpadc_addr[1] = ADC_AUX2;
data->gpadc_addr[2] = BTEMP_BALL;
data->gpadc_addr[3] = BAT_CTRL;
data->gpadc_addr[0] = AB8500_SENSOR_AUX1;
data->gpadc_addr[1] = AB8500_SENSOR_AUX2;
data->gpadc_addr[2] = AB8500_SENSOR_BTEMP_BALL;
data->gpadc_addr[3] = AB8500_SENSOR_BAT_CTRL;
data->monitored_sensors = NUM_MONITORED_SENSORS;
data->ops.read_sensor = ab8500_read_sensor;

10
drivers/iio/adc/Kconfig
View File

@ -6,6 +6,16 @@
menu "Analog to digital converters"
config AB8500_GPADC
bool "ST-Ericsson AB8500 GPADC driver"
depends on AB8500_CORE && REGULATOR_AB8500
default y
help
AB8500 Analog Baseband, mixed signal integrated circuit GPADC
(General Purpose Analog to Digital Converter) driver used to monitor
internal voltages, convert accessory and battery, AC (charger, mains)
and USB voltages integral to the U8500 platform.
config AD_SIGMA_DELTA
tristate
select IIO_BUFFER

1
drivers/iio/adc/Makefile
View File

@ -4,6 +4,7 @@
#
# When adding new entries keep the list in alphabetical order
obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o
obj-$(CONFIG_AD_SIGMA_DELTA) += ad_sigma_delta.o
obj-$(CONFIG_AD7124) += ad7124.o
obj-$(CONFIG_AD7266) += ad7266.o

1218
drivers/iio/adc/ab8500-gpadc.c Normal file
View File

File diff suppressed because it is too large Load Diff

7
drivers/mfd/Kconfig
View File

@ -1210,13 +1210,6 @@ config AB8500_DEBUG
Select this option if you want debug information using the debug
filesystem, debugfs.
config AB8500_GPADC
bool "ST-Ericsson AB8500 GPADC driver"
depends on AB8500_CORE && REGULATOR_AB8500
default y
help
AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage
config MFD_DB8500_PRCMU
bool "ST-Ericsson DB8500 Power Reset Control Management Unit"
depends on UX500_SOC_DB8500

1
drivers/mfd/Makefile
View File

@ -177,7 +177,6 @@ obj-$(CONFIG_ABX500_CORE) += abx500-core.o
obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o
obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o
obj-$(CONFIG_MFD_DB8500_PRCMU) += db8500-prcmu.o
# ab8500-core need to come after db8500-prcmu (which provides the channel)
obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o

715
drivers/mfd/ab8500-debugfs.c
View File

@ -84,7 +84,6 @@
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>
#ifdef CONFIG_DEBUG_FS
#include <linux/string.h>
@ -103,11 +102,6 @@ static int num_irqs;
static struct device_attribute **dev_attr;
static char **event_name;
static u8 avg_sample = SAMPLE_16;
static u8 trig_edge = RISING_EDGE;
static u8 conv_type = ADC_SW;
static u8 trig_timer;
/**
* struct ab8500_reg_range
* @first: the first address of the range
@ -152,7 +146,6 @@ static struct hwreg_cfg hwreg_cfg = {
};
#define AB8500_NAME_STRING "ab8500"
#define AB8500_ADC_NAME_STRING "gpadc"
#define AB8500_NUM_BANKS AB8500_DEBUG_FIELD_LAST
#define AB8500_REV_REG 0x80
@ -1646,633 +1639,6 @@ static int ab8500_modem_show(struct seq_file *s, void *p)
DEFINE_SHOW_ATTRIBUTE(ab8500_modem);
static int ab8500_gpadc_bat_ctrl_show(struct seq_file *s, void *p)
{
int bat_ctrl_raw;
int bat_ctrl_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL,
avg_sample, trig_edge, trig_timer, conv_type);
bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc,
BAT_CTRL, bat_ctrl_raw);
seq_printf(s, "%d,0x%X\n", bat_ctrl_convert, bat_ctrl_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_bat_ctrl);
static int ab8500_gpadc_btemp_ball_show(struct seq_file *s, void *p)
{
int btemp_ball_raw;
int btemp_ball_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL,
avg_sample, trig_edge, trig_timer, conv_type);
btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL,
btemp_ball_raw);
seq_printf(s, "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_btemp_ball);
static int ab8500_gpadc_main_charger_v_show(struct seq_file *s, void *p)
{
int main_charger_v_raw;
int main_charger_v_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V,
avg_sample, trig_edge, trig_timer, conv_type);
main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
MAIN_CHARGER_V, main_charger_v_raw);
seq_printf(s, "%d,0x%X\n", main_charger_v_convert, main_charger_v_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_main_charger_v);
static int ab8500_gpadc_acc_detect1_show(struct seq_file *s, void *p)
{
int acc_detect1_raw;
int acc_detect1_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1,
avg_sample, trig_edge, trig_timer, conv_type);
acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1,
acc_detect1_raw);
seq_printf(s, "%d,0x%X\n", acc_detect1_convert, acc_detect1_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_acc_detect1);
static int ab8500_gpadc_acc_detect2_show(struct seq_file *s, void *p)
{
int acc_detect2_raw;
int acc_detect2_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2,
avg_sample, trig_edge, trig_timer, conv_type);
acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc,
ACC_DETECT2, acc_detect2_raw);
seq_printf(s, "%d,0x%X\n", acc_detect2_convert, acc_detect2_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_acc_detect2);
static int ab8500_gpadc_aux1_show(struct seq_file *s, void *p)
{
int aux1_raw;
int aux1_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1,
avg_sample, trig_edge, trig_timer, conv_type);
aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1,
aux1_raw);
seq_printf(s, "%d,0x%X\n", aux1_convert, aux1_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_aux1);
static int ab8500_gpadc_aux2_show(struct seq_file *s, void *p)
{
int aux2_raw;
int aux2_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2,
avg_sample, trig_edge, trig_timer, conv_type);
aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2,
aux2_raw);
seq_printf(s, "%d,0x%X\n", aux2_convert, aux2_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_aux2);
static int ab8500_gpadc_main_bat_v_show(struct seq_file *s, void *p)
{
int main_bat_v_raw;
int main_bat_v_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V,
avg_sample, trig_edge, trig_timer, conv_type);
main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V,
main_bat_v_raw);
seq_printf(s, "%d,0x%X\n", main_bat_v_convert, main_bat_v_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_main_bat_v);
static int ab8500_gpadc_vbus_v_show(struct seq_file *s, void *p)
{
int vbus_v_raw;
int vbus_v_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V,
avg_sample, trig_edge, trig_timer, conv_type);
vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V,
vbus_v_raw);
seq_printf(s, "%d,0x%X\n", vbus_v_convert, vbus_v_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_vbus_v);
static int ab8500_gpadc_main_charger_c_show(struct seq_file *s, void *p)
{
int main_charger_c_raw;
int main_charger_c_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C,
avg_sample, trig_edge, trig_timer, conv_type);
main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
MAIN_CHARGER_C, main_charger_c_raw);
seq_printf(s, "%d,0x%X\n", main_charger_c_convert, main_charger_c_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_main_charger_c);
static int ab8500_gpadc_usb_charger_c_show(struct seq_file *s, void *p)
{
int usb_charger_c_raw;
int usb_charger_c_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C,
avg_sample, trig_edge, trig_timer, conv_type);
usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
USB_CHARGER_C, usb_charger_c_raw);
seq_printf(s, "%d,0x%X\n", usb_charger_c_convert, usb_charger_c_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_usb_charger_c);
static int ab8500_gpadc_bk_bat_v_show(struct seq_file *s, void *p)
{
int bk_bat_v_raw;
int bk_bat_v_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V,
avg_sample, trig_edge, trig_timer, conv_type);
bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
BK_BAT_V, bk_bat_v_raw);
seq_printf(s, "%d,0x%X\n", bk_bat_v_convert, bk_bat_v_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_bk_bat_v);
static int ab8500_gpadc_die_temp_show(struct seq_file *s, void *p)
{
int die_temp_raw;
int die_temp_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP,
avg_sample, trig_edge, trig_timer, conv_type);
die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP,
die_temp_raw);
seq_printf(s, "%d,0x%X\n", die_temp_convert, die_temp_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_die_temp);
static int ab8500_gpadc_usb_id_show(struct seq_file *s, void *p)
{
int usb_id_raw;
int usb_id_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
usb_id_raw = ab8500_gpadc_read_raw(gpadc, USB_ID,
avg_sample, trig_edge, trig_timer, conv_type);
usb_id_convert = ab8500_gpadc_ad_to_voltage(gpadc, USB_ID,
usb_id_raw);
seq_printf(s, "%d,0x%X\n", usb_id_convert, usb_id_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8500_gpadc_usb_id);
static int ab8540_gpadc_xtal_temp_show(struct seq_file *s, void *p)
{
int xtal_temp_raw;
int xtal_temp_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
xtal_temp_raw = ab8500_gpadc_read_raw(gpadc, XTAL_TEMP,
avg_sample, trig_edge, trig_timer, conv_type);
xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP,
xtal_temp_raw);
seq_printf(s, "%d,0x%X\n", xtal_temp_convert, xtal_temp_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_xtal_temp);
static int ab8540_gpadc_vbat_true_meas_show(struct seq_file *s, void *p)
{
int vbat_true_meas_raw;
int vbat_true_meas_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
vbat_true_meas_raw = ab8500_gpadc_read_raw(gpadc, VBAT_TRUE_MEAS,
avg_sample, trig_edge, trig_timer, conv_type);
vbat_true_meas_convert =
ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS,
vbat_true_meas_raw);
seq_printf(s, "%d,0x%X\n", vbat_true_meas_convert, vbat_true_meas_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_vbat_true_meas);
static int ab8540_gpadc_bat_ctrl_and_ibat_show(struct seq_file *s, void *p)
{
int bat_ctrl_raw;
int bat_ctrl_convert;
int ibat_raw;
int ibat_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
bat_ctrl_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_CTRL_AND_IBAT,
avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw);
bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, BAT_CTRL,
bat_ctrl_raw);
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
seq_printf(s,
"%d,0x%X\n"
"%d,0x%X\n",
bat_ctrl_convert, bat_ctrl_raw,
ibat_convert, ibat_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_bat_ctrl_and_ibat);
static int ab8540_gpadc_vbat_meas_and_ibat_show(struct seq_file *s, void *p)
{
int vbat_meas_raw;
int vbat_meas_convert;
int ibat_raw;
int ibat_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
vbat_meas_raw = ab8500_gpadc_double_read_raw(gpadc, VBAT_MEAS_AND_IBAT,
avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw);
vbat_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V,
vbat_meas_raw);
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
seq_printf(s,
"%d,0x%X\n"
"%d,0x%X\n",
vbat_meas_convert, vbat_meas_raw,
ibat_convert, ibat_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_vbat_meas_and_ibat);
static int ab8540_gpadc_vbat_true_meas_and_ibat_show(struct seq_file *s, void *p)
{
int vbat_true_meas_raw;
int vbat_true_meas_convert;
int ibat_raw;
int ibat_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
vbat_true_meas_raw = ab8500_gpadc_double_read_raw(gpadc,
VBAT_TRUE_MEAS_AND_IBAT, avg_sample, trig_edge,
trig_timer, conv_type, &ibat_raw);
vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc,
VBAT_TRUE_MEAS, vbat_true_meas_raw);
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
seq_printf(s,
"%d,0x%X\n"
"%d,0x%X\n",
vbat_true_meas_convert, vbat_true_meas_raw,
ibat_convert, ibat_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_vbat_true_meas_and_ibat);
static int ab8540_gpadc_bat_temp_and_ibat_show(struct seq_file *s, void *p)
{
int bat_temp_raw;
int bat_temp_convert;
int ibat_raw;
int ibat_convert;
struct ab8500_gpadc *gpadc;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
bat_temp_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_TEMP_AND_IBAT,
avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw);
bat_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL,
bat_temp_raw);
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
seq_printf(s,
"%d,0x%X\n"
"%d,0x%X\n",
bat_temp_convert, bat_temp_raw,
ibat_convert, ibat_raw);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_bat_temp_and_ibat);
static int ab8540_gpadc_otp_calib_show(struct seq_file *s, void *p)
{
struct ab8500_gpadc *gpadc;
u16 vmain_l, vmain_h, btemp_l, btemp_h;
u16 vbat_l, vbat_h, ibat_l, ibat_h;
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h,
&vbat_l, &vbat_h, &ibat_l, &ibat_h);
seq_printf(s,
"VMAIN_L:0x%X\n"
"VMAIN_H:0x%X\n"
"BTEMP_L:0x%X\n"
"BTEMP_H:0x%X\n"
"VBAT_L:0x%X\n"
"VBAT_H:0x%X\n"
"IBAT_L:0x%X\n"
"IBAT_H:0x%X\n",
vmain_l, vmain_h, btemp_l, btemp_h,
vbat_l, vbat_h, ibat_l, ibat_h);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(ab8540_gpadc_otp_calib);
static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p)
{
seq_printf(s, "%d\n", avg_sample);
return 0;
}
static int ab8500_gpadc_avg_sample_open(struct inode *inode, struct file *file)
{
return single_open(file, ab8500_gpadc_avg_sample_print,
inode->i_private);
}
static ssize_t ab8500_gpadc_avg_sample_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct device *dev = ((struct seq_file *)(file->private_data))->private;
unsigned long user_avg_sample;
int err;
err = kstrtoul_from_user(user_buf, count, 0, &user_avg_sample);
if (err)
return err;
if ((user_avg_sample == SAMPLE_1) || (user_avg_sample == SAMPLE_4)
|| (user_avg_sample == SAMPLE_8)
|| (user_avg_sample == SAMPLE_16)) {
avg_sample = (u8) user_avg_sample;
} else {
dev_err(dev,
"debugfs err input: should be egal to 1, 4, 8 or 16\n");
return -EINVAL;
}
return count;
}
static const struct file_operations ab8500_gpadc_avg_sample_fops = {
.open = ab8500_gpadc_avg_sample_open,
.read = seq_read,
.write = ab8500_gpadc_avg_sample_write,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static int ab8500_gpadc_trig_edge_print(struct seq_file *s, void *p)
{
seq_printf(s, "%d\n", trig_edge);
return 0;
}
static int ab8500_gpadc_trig_edge_open(struct inode *inode, struct file *file)
{
return single_open(file, ab8500_gpadc_trig_edge_print,
inode->i_private);
}
static ssize_t ab8500_gpadc_trig_edge_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct device *dev = ((struct seq_file *)(file->private_data))->private;
unsigned long user_trig_edge;
int err;
err = kstrtoul_from_user(user_buf, count, 0, &user_trig_edge);
if (err)
return err;
if ((user_trig_edge == RISING_EDGE)
|| (user_trig_edge == FALLING_EDGE)) {
trig_edge = (u8) user_trig_edge;
} else {
dev_err(dev, "Wrong input:\n"
"Enter 0. Rising edge\n"
"Enter 1. Falling edge\n");
return -EINVAL;
}
return count;
}
static const struct file_operations ab8500_gpadc_trig_edge_fops = {
.open = ab8500_gpadc_trig_edge_open,
.read = seq_read,
.write = ab8500_gpadc_trig_edge_write,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static int ab8500_gpadc_trig_timer_print(struct seq_file *s, void *p)
{
seq_printf(s, "%d\n", trig_timer);
return 0;
}
static int ab8500_gpadc_trig_timer_open(struct inode *inode, struct file *file)
{
return single_open(file, ab8500_gpadc_trig_timer_print,
inode->i_private);
}
static ssize_t ab8500_gpadc_trig_timer_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct device *dev = ((struct seq_file *)(file->private_data))->private;
unsigned long user_trig_timer;
int err;
err = kstrtoul_from_user(user_buf, count, 0, &user_trig_timer);
if (err)
return err;
if (user_trig_timer & ~0xFF) {
dev_err(dev,
"debugfs error input: should be between 0 to 255\n");
return -EINVAL;
}
trig_timer = (u8) user_trig_timer;
return count;
}
static const struct file_operations ab8500_gpadc_trig_timer_fops = {
.open = ab8500_gpadc_trig_timer_open,
.read = seq_read,
.write = ab8500_gpadc_trig_timer_write,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static int ab8500_gpadc_conv_type_print(struct seq_file *s, void *p)
{
seq_printf(s, "%d\n", conv_type);
return 0;
}
static int ab8500_gpadc_conv_type_open(struct inode *inode, struct file *file)
{
return single_open(file, ab8500_gpadc_conv_type_print,
inode->i_private);
}
static ssize_t ab8500_gpadc_conv_type_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct device *dev = ((struct seq_file *)(file->private_data))->private;
unsigned long user_conv_type;
int err;
err = kstrtoul_from_user(user_buf, count, 0, &user_conv_type);
if (err)
return err;
if ((user_conv_type == ADC_SW)
|| (user_conv_type == ADC_HW)) {
conv_type = (u8) user_conv_type;
} else {
dev_err(dev, "Wrong input:\n"
"Enter 0. ADC SW conversion\n"
"Enter 1. ADC HW conversion\n");
return -EINVAL;
}
return count;
}
static const struct file_operations ab8500_gpadc_conv_type_fops = {
.open = ab8500_gpadc_conv_type_open,
.read = seq_read,
.write = ab8500_gpadc_conv_type_write,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
/*
* return length of an ASCII numerical value, 0 is string is not a
* numerical value.
@ -2647,7 +2013,6 @@ static const struct file_operations ab8500_hwreg_fops = {
static int ab8500_debug_probe(struct platform_device *plf)
{
struct dentry *ab8500_dir;
struct dentry *ab8500_gpadc_dir;
struct ab8500 *ab8500;
struct resource *res;
@ -2689,9 +2054,6 @@ static int ab8500_debug_probe(struct platform_device *plf)
ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);
ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING,
ab8500_dir);
debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
&plf->dev, &ab8500_bank_registers_fops);
debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
@ -2727,83 +2089,6 @@ static int ab8500_debug_probe(struct platform_device *plf)
&plf->dev, &ab8500_hwreg_fops);
debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_dir, &plf->dev, &ab8500_modem_fops);
debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_bat_ctrl_fops);
debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_btemp_ball_fops);
debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_charger_v_fops);
debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_acc_detect1_fops);
debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_acc_detect2_fops);
debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_aux1_fops);
debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_aux2_fops);
debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_bat_v_fops);
debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_vbus_v_fops);
debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_main_charger_c_fops);
debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_usb_charger_c_fops);
debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_bk_bat_v_fops);
debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_die_temp_fops);
debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_usb_id_fops);
if (is_ab8540(ab8500)) {
debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_xtal_temp_fops);
debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_true_meas_fops);
debugfs_create_file("batctrl_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_bat_ctrl_and_ibat_fops);
debugfs_create_file("vbatmeas_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_meas_and_ibat_fops);
debugfs_create_file("vbattruemeas_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_vbat_true_meas_and_ibat_fops);
debugfs_create_file("battemp_and_ibat", (S_IRUGO | S_IWUGO),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_bat_temp_and_ibat_fops);
debugfs_create_file("otp_calib", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8540_gpadc_otp_calib_fops);
}
debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_avg_sample_fops);
debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_trig_edge_fops);
debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_trig_timer_fops);
debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP),
ab8500_gpadc_dir, &plf->dev,
&ab8500_gpadc_conv_type_fops);
return 0;
}

1075
drivers/mfd/ab8500-gpadc.c
View File

File diff suppressed because it is too large Load Diff

2
drivers/power/supply/Kconfig
View File

@ -629,7 +629,7 @@ config BATTERY_GAUGE_LTC2941
config AB8500_BM
bool "AB8500 Battery Management Driver"
depends on AB8500_CORE && AB8500_GPADC
depends on AB8500_CORE && AB8500_GPADC && (IIO = y)
help
Say Y to include support for AB8500 battery management.

41
drivers/power/supply/ab8500_btemp.c
View File

@ -26,7 +26,7 @@
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-bm.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>
#include <linux/iio/consumer.h>
#define VTVOUT_V 1800
@ -79,7 +79,8 @@ struct ab8500_btemp_ranges {
* @bat_temp: Dispatched battery temperature in degree Celsius
* @prev_bat_temp Last measured battery temperature in degree Celsius
* @parent: Pointer to the struct ab8500
* @gpadc: Pointer to the struct gpadc
* @adc_btemp_ball: ADC channel for the battery ball temperature
* @adc_bat_ctrl: ADC channel for the battery control
* @fg: Pointer to the struct fg
* @bm: Platform specific battery management information
* @btemp_psy: Structure for BTEMP specific battery properties
@ -96,7 +97,8 @@ struct ab8500_btemp {
int bat_temp;
int prev_bat_temp;
struct ab8500 *parent;
struct ab8500_gpadc *gpadc;
struct iio_channel *btemp_ball;
struct iio_channel *bat_ctrl;
struct ab8500_fg *fg;
struct abx500_bm_data *bm;
struct power_supply *btemp_psy;
@ -177,13 +179,13 @@ static int ab8500_btemp_batctrl_volt_to_res(struct ab8500_btemp *di,
*/
static int ab8500_btemp_read_batctrl_voltage(struct ab8500_btemp *di)
{
int vbtemp;
int vbtemp, ret;
static int prev;
vbtemp = ab8500_gpadc_convert(di->gpadc, BAT_CTRL);
if (vbtemp < 0) {
ret = iio_read_channel_processed(di->bat_ctrl, &vbtemp);
if (ret < 0) {
dev_err(di->dev,
"%s gpadc conversion failed, using previous value",
"%s ADC conversion failed, using previous value",
__func__);
return prev;
}
@ -455,7 +457,7 @@ static int ab8500_btemp_res_to_temp(struct ab8500_btemp *di,
*/
static int ab8500_btemp_measure_temp(struct ab8500_btemp *di)
{
int temp;
int temp, ret;
static int prev;
int rbat, rntc, vntc;
u8 id;
@ -480,10 +482,10 @@ static int ab8500_btemp_measure_temp(struct ab8500_btemp *di)
di->bm->bat_type[id].r_to_t_tbl,
di->bm->bat_type[id].n_temp_tbl_elements, rbat);
} else {
vntc = ab8500_gpadc_convert(di->gpadc, BTEMP_BALL);
if (vntc < 0) {
ret = iio_read_channel_processed(di->btemp_ball, &vntc);
if (ret < 0) {
dev_err(di->dev,
"%s gpadc conversion failed,"
"%s ADC conversion failed,"
" using previous value\n", __func__);
return prev;
}
@ -1024,7 +1026,22 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
/* get parent data */
di->dev = &pdev->dev;
di->parent = dev_get_drvdata(pdev->dev.parent);
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
/* Get ADC channels */
di->btemp_ball = devm_iio_channel_get(&pdev->dev, "btemp_ball");
if (IS_ERR(di->btemp_ball)) {
if (PTR_ERR(di->btemp_ball) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get BTEMP BALL ADC channel\n");
return PTR_ERR(di->btemp_ball);
}
di->bat_ctrl = devm_iio_channel_get(&pdev->dev, "bat_ctrl");
if (IS_ERR(di->bat_ctrl)) {
if (PTR_ERR(di->bat_ctrl) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get BAT CTRL ADC channel\n");
return PTR_ERR(di->bat_ctrl);
}
di->initialized = false;

78
drivers/power/supply/ab8500_charger.c
View File

@ -29,10 +29,10 @@
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500-bm.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>
#include <linux/mfd/abx500/ux500_chargalg.h>
#include <linux/usb/otg.h>
#include <linux/mutex.h>
#include <linux/iio/consumer.h>
/* Charger constants */
#define NO_PW_CONN 0
@ -233,7 +233,10 @@ struct ab8500_charger_max_usb_in_curr {
* @current_stepping_sessions:
* Counter for current stepping sessions
* @parent: Pointer to the struct ab8500
* @gpadc: Pointer to the struct gpadc
* @adc_main_charger_v ADC channel for main charger voltage
* @adc_main_charger_c ADC channel for main charger current
* @adc_vbus_v ADC channel for USB charger voltage
* @adc_usb_charger_c ADC channel for USB charger current
* @bm: Platform specific battery management information
* @flags: Structure for information about events triggered
* @usb_state: Structure for usb stack information
@ -283,7 +286,10 @@ struct ab8500_charger {
int is_aca_rid;
atomic_t current_stepping_sessions;
struct ab8500 *parent;
struct ab8500_gpadc *gpadc;
struct iio_channel *adc_main_charger_v;
struct iio_channel *adc_main_charger_c;
struct iio_channel *adc_vbus_v;
struct iio_channel *adc_usb_charger_c;
struct abx500_bm_data *bm;
struct ab8500_charger_event_flags flags;
struct ab8500_charger_usb_state usb_state;
@ -459,13 +465,13 @@ static void ab8500_charger_set_usb_connected(struct ab8500_charger *di,
*/
static int ab8500_charger_get_ac_voltage(struct ab8500_charger *di)
{
int vch;
int vch, ret;
/* Only measure voltage if the charger is connected */
if (di->ac.charger_connected) {
vch = ab8500_gpadc_convert(di->gpadc, MAIN_CHARGER_V);
if (vch < 0)
dev_err(di->dev, "%s gpadc conv failed,\n", __func__);
ret = iio_read_channel_processed(di->adc_main_charger_v, &vch);
if (ret < 0)
dev_err(di->dev, "%s ADC conv failed,\n", __func__);
} else {
vch = 0;
}
@ -510,13 +516,13 @@ static int ab8500_charger_ac_cv(struct ab8500_charger *di)
*/
static int ab8500_charger_get_vbus_voltage(struct ab8500_charger *di)
{
int vch;
int vch, ret;
/* Only measure voltage if the charger is connected */
if (di->usb.charger_connected) {
vch = ab8500_gpadc_convert(di->gpadc, VBUS_V);
if (vch < 0)
dev_err(di->dev, "%s gpadc conv failed\n", __func__);
ret = iio_read_channel_processed(di->adc_vbus_v, &vch);
if (ret < 0)
dev_err(di->dev, "%s ADC conv failed,\n", __func__);
} else {
vch = 0;
}
@ -532,13 +538,13 @@ static int ab8500_charger_get_vbus_voltage(struct ab8500_charger *di)
*/
static int ab8500_charger_get_usb_current(struct ab8500_charger *di)
{
int ich;
int ich, ret;
/* Only measure current if the charger is online */
if (di->usb.charger_online) {
ich = ab8500_gpadc_convert(di->gpadc, USB_CHARGER_C);
if (ich < 0)
dev_err(di->dev, "%s gpadc conv failed\n", __func__);
ret = iio_read_channel_processed(di->adc_usb_charger_c, &ich);
if (ret < 0)
dev_err(di->dev, "%s ADC conv failed,\n", __func__);
} else {
ich = 0;
}
@ -554,13 +560,13 @@ static int ab8500_charger_get_usb_current(struct ab8500_charger *di)
*/
static int ab8500_charger_get_ac_current(struct ab8500_charger *di)
{
int ich;
int ich, ret;
/* Only measure current if the charger is online */
if (di->ac.charger_online) {
ich = ab8500_gpadc_convert(di->gpadc, MAIN_CHARGER_C);
if (ich < 0)
dev_err(di->dev, "%s gpadc conv failed\n", __func__);
ret = iio_read_channel_processed(di->adc_main_charger_c, &ich);
if (ret < 0)
dev_err(di->dev, "%s ADC conv failed,\n", __func__);
} else {
ich = 0;
}
@ -3371,7 +3377,39 @@ static int ab8500_charger_probe(struct platform_device *pdev)
/* get parent data */
di->dev = &pdev->dev;
di->parent = dev_get_drvdata(pdev->dev.parent);
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
/* Get ADC channels */
di->adc_main_charger_v = devm_iio_channel_get(&pdev->dev,
"main_charger_v");
if (IS_ERR(di->adc_main_charger_v)) {
if (PTR_ERR(di->adc_main_charger_v) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get ADC main charger voltage\n");
return PTR_ERR(di->adc_main_charger_v);
}
di->adc_main_charger_c = devm_iio_channel_get(&pdev->dev,
"main_charger_c");
if (IS_ERR(di->adc_main_charger_c)) {
if (PTR_ERR(di->adc_main_charger_c) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get ADC main charger current\n");
return PTR_ERR(di->adc_main_charger_v);
}
di->adc_vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v");
if (IS_ERR(di->adc_vbus_v)) {
if (PTR_ERR(di->adc_vbus_v) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get ADC USB charger voltage\n");
return PTR_ERR(di->adc_vbus_v);
}
di->adc_usb_charger_c = devm_iio_channel_get(&pdev->dev,
"usb_charger_c");
if (IS_ERR(di->adc_usb_charger_c)) {
if (PTR_ERR(di->adc_usb_charger_c) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get ADC USB charger current\n");
return PTR_ERR(di->adc_usb_charger_c);
}
/* initialize lock */
spin_lock_init(&di->usb_state.usb_lock);

23
drivers/power/supply/ab8500_fg.c
View File

@ -32,7 +32,7 @@
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-bm.h>
#include <linux/mfd/abx500/ab8500-gpadc.h>
#include <linux/iio/consumer.h>
#include <linux/kernel.h>
#define MILLI_TO_MICRO 1000
@ -182,7 +182,7 @@ struct inst_curr_result_list {
* @bat_cap: Structure for battery capacity specific parameters
* @avg_cap: Average capacity filter
* @parent: Pointer to the struct ab8500
* @gpadc: Pointer to the struct gpadc
* @main_bat_v: ADC channel for the main battery voltage
* @bm: Platform specific battery management information
* @fg_psy: Structure that holds the FG specific battery properties
* @fg_wq: Work queue for running the FG algorithm
@ -224,7 +224,7 @@ struct ab8500_fg {
struct ab8500_fg_battery_capacity bat_cap;
struct ab8500_fg_avg_cap avg_cap;
struct ab8500 *parent;
struct ab8500_gpadc *gpadc;
struct iio_channel *main_bat_v;
struct abx500_bm_data *bm;
struct power_supply *fg_psy;
struct workqueue_struct *fg_wq;
@ -829,13 +829,13 @@ static void ab8500_fg_acc_cur_work(struct work_struct *work)
*/
static int ab8500_fg_bat_voltage(struct ab8500_fg *di)
{
int vbat;
int vbat, ret;
static int prev;
vbat = ab8500_gpadc_convert(di->gpadc, MAIN_BAT_V);
if (vbat < 0) {
ret = iio_read_channel_processed(di->main_bat_v, &vbat);
if (ret < 0) {
dev_err(di->dev,
"%s gpadc conversion failed, using previous value\n",
"%s ADC conversion failed, using previous value\n",
__func__);
return prev;
}
@ -3066,7 +3066,14 @@ static int ab8500_fg_probe(struct platform_device *pdev)
/* get parent data */
di->dev = &pdev->dev;
di->parent = dev_get_drvdata(pdev->dev.parent);
di->gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
di->main_bat_v = devm_iio_channel_get(&pdev->dev, "main_bat_v");
if (IS_ERR(di->main_bat_v)) {
if (PTR_ERR(di->main_bat_v) == -ENODEV)
return -EPROBE_DEFER;
dev_err(&pdev->dev, "failed to get main battery ADC channel\n");
return PTR_ERR(di->main_bat_v);
}
psy_cfg.supplied_to = supply_interface;
psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);

75
include/linux/mfd/abx500/ab8500-gpadc.h
View File

@ -1,75 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2010 ST-Ericsson SA
*
* Author: Arun R Murthy <arun.murthy@stericsson.com>
* Author: Daniel Willerud <daniel.willerud@stericsson.com>
* Author: M'boumba Cedric Madianga <cedric.madianga@stericsson.com>
*/
#ifndef _AB8500_GPADC_H
#define _AB8500_GPADC_H
/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2
* and ADCHwSel[4:0] in GPADCCtrl3 ) */
#define BAT_CTRL 0x01
#define BTEMP_BALL 0x02
#define MAIN_CHARGER_V 0x03
#define ACC_DETECT1 0x04
#define ACC_DETECT2 0x05
#define ADC_AUX1 0x06
#define ADC_AUX2 0x07
#define MAIN_BAT_V 0x08
#define VBUS_V 0x09
#define MAIN_CHARGER_C 0x0A
#define USB_CHARGER_C 0x0B
#define BK_BAT_V 0x0C
#define DIE_TEMP 0x0D
#define USB_ID 0x0E
#define XTAL_TEMP 0x12
#define VBAT_TRUE_MEAS 0x13
#define BAT_CTRL_AND_IBAT 0x1C
#define VBAT_MEAS_AND_IBAT 0x1D
#define VBAT_TRUE_MEAS_AND_IBAT 0x1E
#define BAT_TEMP_AND_IBAT 0x1F
/* Virtual channel used only for ibat convertion to ampere
* Battery current conversion (ibat) cannot be requested as a single conversion
* but it is always in combination with other input requests
*/
#define IBAT_VIRTUAL_CHANNEL 0xFF
#define SAMPLE_1 1
#define SAMPLE_4 4
#define SAMPLE_8 8
#define SAMPLE_16 16
#define RISING_EDGE 0
#define FALLING_EDGE 1
/* Arbitrary ADC conversion type constants */
#define ADC_SW 0
#define ADC_HW 1
struct ab8500_gpadc;
struct ab8500_gpadc *ab8500_gpadc_get(char *name);
int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel)
{
return ab8500_gpadc_sw_hw_convert(gpadc, channel,
SAMPLE_16, 0, 0, ADC_SW);
}
int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type,
int *ibat);
int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
u8 channel, int ad_value);
void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h,
u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h);
#endif /* _AB8500_GPADC_H */