diff options
30 files changed, 882 insertions, 210 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power index 27edc06e2495..bf3b48f022dc 100644 --- a/Documentation/ABI/testing/sysfs-class-power +++ b/Documentation/ABI/testing/sysfs-class-power @@ -189,7 +189,8 @@ Description: Access: Read Valid values: "Unknown", "Good", "Overheat", "Dead", "Over voltage", "Unspecified failure", "Cold", - "Watchdog timer expire", "Safety timer expire" + "Watchdog timer expire", "Safety timer expire", + "Over current" What: /sys/class/power_supply/<supply_name>/precharge_current Date: June 2017 diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt index 5c913d4cf36c..3049cf88bdcf 100644 --- a/Documentation/devicetree/bindings/power/supply/battery.txt +++ b/Documentation/devicetree/bindings/power/supply/battery.txt @@ -35,6 +35,10 @@ Optional Properties: for each of the battery capacity lookup table. The first temperature value specifies the OCV table 0, and the second temperature value specifies the OCV table 1, and so on. + - resistance-temp-table: An array providing the temperature in degree Celsius + and corresponding battery internal resistance percent, which is used to look + up the resistance percent according to current temperature to get a accurate + batterty internal resistance in different temperatures. Battery properties are named, where possible, for the corresponding elements in enum power_supply_property, defined in @@ -61,6 +65,7 @@ Example: ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>, ...; ocv-capacity-table-1 = <4200000 100>, <4185000 95>, <4113000 90>, ...; ocv-capacity-table-2 = <4250000 100>, <4200000 95>, <4185000 90>, ...; + resistance-temp-table = <20 100>, <10 90>, <0 80>, <(-10) 60>; }; charger: charger@11 { diff --git a/Documentation/devicetree/bindings/power/supply/bq25890.txt b/Documentation/devicetree/bindings/power/supply/bq25890.txt index dc0568933359..dc9c8f76e06c 100644 --- a/Documentation/devicetree/bindings/power/supply/bq25890.txt +++ b/Documentation/devicetree/bindings/power/supply/bq25890.txt @@ -1,11 +1,14 @@ Binding for TI bq25890 Li-Ion Charger -This driver will support the bq25896 and the bq25890. There are other ICs -in the same family but those have not been tested. +This driver will support the bq25892, the bq25896 and the bq25890. There are +other ICs in the same family but those have not been tested. Required properties: - compatible: Should contain one of the following: * "ti,bq25890" + * "ti,bq25892" + * "ti,bq25895" + * "ti,bq25896" - reg: integer, i2c address of the device. - ti,battery-regulation-voltage: integer, maximum charging voltage (in uV); - ti,charge-current: integer, maximum charging current (in uA); diff --git a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt new file mode 100644 index 000000000000..4e0186b8380f --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt @@ -0,0 +1,33 @@ +max17040_battery +~~~~~~~~~~~~~~~~ + +Required properties : + - compatible : "maxim,max17040" or "maxim,max77836-battery" + - reg: i2c slave address + +Optional properties : +- maxim,alert-low-soc-level : The alert threshold that sets the state of + charge level (%) where an interrupt is + generated. Can be configured from 1 up to 32 + (%). If skipped the power up default value of + 4 (%) will be used. +- interrupts : Interrupt line see Documentation/devicetree/ + bindings/interrupt-controller/interrupts.txt +- wakeup-source : This device has wakeup capabilities. Use this + property to use alert low SOC level interrupt + as wake up source. + +Optional properties support interrupt functionality for alert low state of +charge level, present in some ICs in the same family, and should be used with +compatible "maxim,max77836-battery". + +Example: + + battery-fuel-gauge@36 { + compatible = "maxim,max77836-battery"; + reg = <0x36>; + maxim,alert-low-soc-level = <10>; + interrupt-parent = <&gpio7>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + wakeup-source; + }; diff --git a/Documentation/devicetree/bindings/power/supply/max17042_battery.txt b/Documentation/devicetree/bindings/power/supply/max17042_battery.txt index 3f3894aaeebc..f34c5daae9af 100644 --- a/Documentation/devicetree/bindings/power/supply/max17042_battery.txt +++ b/Documentation/devicetree/bindings/power/supply/max17042_battery.txt @@ -2,7 +2,11 @@ max17042_battery ~~~~~~~~~~~~~~~~ Required properties : - - compatible : "maxim,max17042" + - compatible : one of the following + * "maxim,max17042" + * "maxim,max17047" + * "maxim,max17050" + * "maxim,max17055" Optional properties : - maxim,rsns-microohm : Resistance of rsns resistor in micro Ohms diff --git a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt index 0a5705b8b592..b6359b590383 100644 --- a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt +++ b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt @@ -13,6 +13,8 @@ Required properties: - io-channel-names: Should be "bat-temp" or "charge-vol". - nvmem-cells: A phandle to the calibration cells provided by eFuse device. - nvmem-cell-names: Should be "fgu_calib". +- sprd,calib-resistance-micro-ohms: Specify the real resistance of coulomb counter + chip in micro Ohms. - monitored-battery: Phandle of battery characteristics devicetree node. See Documentation/devicetree/bindings/power/supply/battery.txt @@ -52,5 +54,6 @@ Example: nvmem-cells = <&fgu_calib>; nvmem-cell-names = "fgu_calib"; monitored-battery = <&bat>; + sprd,calib-resistance-micro-ohms = <21500>; }; }; diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index c721939767eb..0498363203e8 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -141,14 +141,14 @@ config POWER_RESET_LTC2952 down via the LTC2952. Bindings are made in the device tree. config POWER_RESET_MT6323 - bool "MediaTek MT6323 power-off driver" - depends on MFD_MT6397 - help - The power-off driver is responsible for externally shutdown down - the power of a remote MediaTek SoC MT6323 is connected to through - controlling a tiny circuit BBPU inside MT6323 RTC. - - Say Y if you have a board where MT6323 could be found. + bool "MediaTek MT6323 power-off driver" + depends on MFD_MT6397 + help + The power-off driver is responsible for externally shutdown down + the power of a remote MediaTek SoC MT6323 is connected to through + controlling a tiny circuit BBPU inside MT6323 RTC. + + Say Y if you have a board where MT6323 could be found. config POWER_RESET_QNAP bool "QNAP power-off driver" diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c index 1c18f465a245..2fe3a627cb53 100644 --- a/drivers/power/reset/at91-sama5d2_shdwc.c +++ b/drivers/power/reset/at91-sama5d2_shdwc.c @@ -66,7 +66,7 @@ #define SHDW_CFG_NOT_USED (32) -struct shdwc_config { +struct shdwc_reg_config { u8 wkup_pin_input; u8 mr_rtcwk_shift; u8 mr_rttwk_shift; @@ -74,8 +74,17 @@ struct shdwc_config { u8 sr_rttwk_shift; }; +struct pmc_reg_config { + u8 mckr; +}; + +struct reg_config { + struct shdwc_reg_config shdwc; + struct pmc_reg_config pmc; +}; + struct shdwc { - const struct shdwc_config *cfg; + const struct reg_config *rcfg; struct clk *sclk; void __iomem *shdwc_base; void __iomem *mpddrc_base; @@ -95,6 +104,7 @@ static const unsigned long long sdwc_dbc_period[] = { static void __init at91_wakeup_status(struct platform_device *pdev) { struct shdwc *shdw = platform_get_drvdata(pdev); + const struct reg_config *rcfg = shdw->rcfg; u32 reg; char *reason = "unknown"; @@ -106,11 +116,11 @@ static void __init at91_wakeup_status(struct platform_device *pdev) if (!reg) return; - if (SHDW_WK_PIN(reg, shdw->cfg)) + if (SHDW_WK_PIN(reg, &rcfg->shdwc)) reason = "WKUP pin"; - else if (SHDW_RTCWK(reg, shdw->cfg)) + else if (SHDW_RTCWK(reg, &rcfg->shdwc)) reason = "RTC"; - else if (SHDW_RTTWK(reg, shdw->cfg)) + else if (SHDW_RTTWK(reg, &rcfg->shdwc)) reason = "RTT"; pr_info("AT91: Wake-Up source: %s\n", reason); @@ -131,9 +141,9 @@ static void at91_poweroff(void) " str %1, [%0, #" __stringify(AT91_DDRSDRC_LPR) "]\n\t" /* Switch the master clock source to slow clock. */ - "1: ldr r6, [%4, #" __stringify(AT91_PMC_MCKR) "]\n\t" + "1: ldr r6, [%4, %5]\n\t" " bic r6, r6, #" __stringify(AT91_PMC_CSS) "\n\t" - " str r6, [%4, #" __stringify(AT91_PMC_MCKR) "]\n\t" + " str r6, [%4, %5]\n\t" /* Wait for clock switch. */ "2: ldr r6, [%4, #" __stringify(AT91_PMC_SR) "]\n\t" " tst r6, #" __stringify(AT91_PMC_MCKRDY) "\n\t" @@ -148,7 +158,8 @@ static void at91_poweroff(void) "r" cpu_to_le32(AT91_DDRSDRC_LPDDR2_PWOFF), "r" (at91_shdwc->shdwc_base), "r" cpu_to_le32(AT91_SHDW_KEY | AT91_SHDW_SHDW), - "r" (at91_shdwc->pmc_base) + "r" (at91_shdwc->pmc_base), + "r" (at91_shdwc->rcfg->pmc.mckr) : "r6"); } @@ -215,6 +226,7 @@ static u32 at91_shdwc_get_wakeup_input(struct platform_device *pdev, static void at91_shdwc_dt_configure(struct platform_device *pdev) { struct shdwc *shdw = platform_get_drvdata(pdev); + const struct reg_config *rcfg = shdw->rcfg; struct device_node *np = pdev->dev.of_node; u32 mode = 0, tmp, input; @@ -227,10 +239,10 @@ static void at91_shdwc_dt_configure(struct platform_device *pdev) mode |= AT91_SHDW_WKUPDBC(at91_shdwc_debouncer_value(pdev, tmp)); if (of_property_read_bool(np, "atmel,wakeup-rtc-timer")) - mode |= SHDW_RTCWKEN(shdw->cfg); + mode |= SHDW_RTCWKEN(&rcfg->shdwc); if (of_property_read_bool(np, "atmel,wakeup-rtt-timer")) - mode |= SHDW_RTTWKEN(shdw->cfg); + mode |= SHDW_RTTWKEN(&rcfg->shdwc); dev_dbg(&pdev->dev, "%s: mode = %#x\n", __func__, mode); writel(mode, shdw->shdwc_base + AT91_SHDW_MR); @@ -239,30 +251,40 @@ static void at91_shdwc_dt_configure(struct platform_device *pdev) writel(input, shdw->shdwc_base + AT91_SHDW_WUIR); } -static const struct shdwc_config sama5d2_shdwc_config = { - .wkup_pin_input = 0, - .mr_rtcwk_shift = 17, - .mr_rttwk_shift = SHDW_CFG_NOT_USED, - .sr_rtcwk_shift = 5, - .sr_rttwk_shift = SHDW_CFG_NOT_USED, +static const struct reg_config sama5d2_reg_config = { + .shdwc = { + .wkup_pin_input = 0, + .mr_rtcwk_shift = 17, + .mr_rttwk_shift = SHDW_CFG_NOT_USED, + .sr_rtcwk_shift = 5, + .sr_rttwk_shift = SHDW_CFG_NOT_USED, + }, + .pmc = { + .mckr = 0x30, + }, }; -static const struct shdwc_config sam9x60_shdwc_config = { - .wkup_pin_input = 0, - .mr_rtcwk_shift = 17, - .mr_rttwk_shift = 16, - .sr_rtcwk_shift = 5, - .sr_rttwk_shift = 4, +static const struct reg_config sam9x60_reg_config = { + .shdwc = { + .wkup_pin_input = 0, + .mr_rtcwk_shift = 17, + .mr_rttwk_shift = 16, + .sr_rtcwk_shift = 5, + .sr_rttwk_shift = 4, + }, + .pmc = { + .mckr = 0x28, + }, }; static const struct of_device_id at91_shdwc_of_match[] = { { .compatible = "atmel,sama5d2-shdwc", - .data = &sama5d2_shdwc_config, + .data = &sama5d2_reg_config, }, { .compatible = "microchip,sam9x60-shdwc", - .data = &sam9x60_shdwc_config, + .data = &sam9x60_reg_config, }, { /*sentinel*/ } @@ -303,7 +325,7 @@ static int __init at91_shdwc_probe(struct platform_device *pdev) } match = of_match_node(at91_shdwc_of_match, pdev->dev.of_node); - at91_shdwc->cfg = match->data; + at91_shdwc->rcfg = match->data; at91_shdwc->sclk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(at91_shdwc->sclk)) diff --git a/drivers/power/reset/gpio-restart.c b/drivers/power/reset/gpio-restart.c index 308ca9d9d276..5466eeea261c 100644 --- a/drivers/power/reset/gpio-restart.c +++ b/drivers/power/reset/gpio-restart.c @@ -64,9 +64,11 @@ static int gpio_restart_probe(struct platform_device *pdev) gpio_restart->reset_gpio = devm_gpiod_get(&pdev->dev, NULL, open_source ? GPIOD_IN : GPIOD_OUT_LOW); - if (IS_ERR(gpio_restart->reset_gpio)) { - dev_err(&pdev->dev, "Could not get reset GPIO\n"); - return PTR_ERR(gpio_restart->reset_gpio); + ret = PTR_ERR_OR_ZERO(gpio_restart->reset_gpio); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, "Could not get reset GPIO\n"); + return ret; } gpio_restart->restart_handler.notifier_call = gpio_restart_notify; diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index 27164a1d3c7c..9a5591ab90d0 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -73,10 +73,10 @@ config WM831X_POWER provided by Wolfson Microelectronics WM831x PMICs. config WM8350_POWER - tristate "WM8350 PMU support" - depends on MFD_WM8350 - help - Say Y here to enable support for the power management unit + tristate "WM8350 PMU support" + depends on MFD_WM8350 + help + Say Y here to enable support for the power management unit provided by the Wolfson Microelectronics WM8350 PMIC. config TEST_POWER @@ -209,16 +209,16 @@ config BATTERY_WM97XX Say Y to enable support for battery measured by WM97xx aux port. config BATTERY_SBS - tristate "SBS Compliant gas gauge" - depends on I2C - help + tristate "SBS Compliant gas gauge" + depends on I2C + help Say Y to include support for SBS battery driver for SBS-compliant gas gauges. config CHARGER_SBS - tristate "SBS Compliant charger" - depends on I2C - help + tristate "SBS Compliant charger" + depends on I2C + help Say Y to include support for SBS compliant battery chargers. config MANAGER_SBS @@ -484,11 +484,11 @@ config CHARGER_MANAGER depends on REGULATOR select EXTCON help - Say Y to enable charger-manager support, which allows multiple - chargers attached to a battery and multiple batteries attached to a - system. The charger-manager also can monitor charging status in - runtime and in suspend-to-RAM by waking up the system periodically - with help of suspend_again support. + Say Y to enable charger-manager support, which allows multiple + chargers attached to a battery and multiple batteries attached to a + system. The charger-manager also can monitor charging status in + runtime and in suspend-to-RAM by waking up the system periodically + with help of suspend_again support. config CHARGER_LT3651 tristate "Analog Devices LT3651 charger" diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c index 8a0f9d769690..f69550d64f09 100644 --- a/drivers/power/supply/ab8500_charger.c +++ b/drivers/power/supply/ab8500_charger.c @@ -789,7 +789,7 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; ret = -ENXIO; break; - }; + } di->max_usb_in_curr.set_max = di->max_usb_in_curr.usb_type_max; dev_dbg(di->dev, "USB Type - 0x%02x MaxCurr: %d", @@ -1079,7 +1079,7 @@ static int ab8500_charger_get_usb_cur(struct ab8500_charger *di) di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; ret = -EPERM; break; - }; + } di->max_usb_in_curr.set_max = di->max_usb_in_curr.usb_type_max; return ret; } @@ -2427,7 +2427,7 @@ static void ab8500_charger_usb_state_changed_work(struct work_struct *work) default: break; - }; + } } /** diff --git a/drivers/power/supply/ab8500_fg.c b/drivers/power/supply/ab8500_fg.c index c3912ee9eb99..b96f90a82ecf 100644 --- a/drivers/power/supply/ab8500_fg.c +++ b/drivers/power/supply/ab8500_fg.c @@ -2221,10 +2221,10 @@ static int ab8500_fg_get_ext_psy_data(struct device *dev, void *data) ab8500_fg_update_cap_scalers(di); queue_work(di->fg_wq, &di->fg_work); break; - }; + } default: break; - }; + } break; case POWER_SUPPLY_PROP_TECHNOLOGY: switch (ext->desc->type) { @@ -2331,7 +2331,7 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) if (ret) { dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_MAX_TIME_REG\n", __func__); goto out; - }; + } ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8505_RTC_PCUT_FLAG_TIME_REG, di->bm->fg_params->pcut_flag_time); @@ -2339,7 +2339,7 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) if (ret) { dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_FLAG_TIME_REG\n", __func__); goto out; - }; + } ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8505_RTC_PCUT_RESTART_REG, di->bm->fg_params->pcut_max_restart); @@ -2347,7 +2347,7 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) if (ret) { dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_RESTART_REG\n", __func__); goto out; - }; + } ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8505_RTC_PCUT_DEBOUNCE_REG, di->bm->fg_params->pcut_debounce_time); @@ -2355,7 +2355,7 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) if (ret) { dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_DEBOUNCE_REG\n", __func__); goto out; - }; + } ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8505_RTC_PCUT_CTL_STATUS_REG, di->bm->fg_params->pcut_enable); @@ -2363,7 +2363,7 @@ static int ab8500_fg_init_hw_registers(struct ab8500_fg *di) if (ret) { dev_err(di->dev, "%s write failed AB8505_RTC_PCUT_CTL_STATUS_REG\n", __func__); goto out; - }; + } } out: return ret; diff --git a/drivers/power/supply/abx500_chargalg.c b/drivers/power/supply/abx500_chargalg.c index e6e37d4f20e4..2fb33a07879a 100644 --- a/drivers/power/supply/abx500_chargalg.c +++ b/drivers/power/supply/abx500_chargalg.c @@ -1823,7 +1823,7 @@ static ssize_t abx500_chargalg_en_store(struct abx500_chargalg *di, "Enter 0. Disable AC/USB Charging\n" "1. Enable AC charging\n" "2. Enable USB Charging\n"); - }; + } return strlen(buf); } diff --git a/drivers/power/supply/axp20x_ac_power.c b/drivers/power/supply/axp20x_ac_power.c index 0d34a932b6d5..ac360016b08a 100644 --- a/drivers/power/supply/axp20x_ac_power.c +++ b/drivers/power/supply/axp20x_ac_power.c @@ -15,6 +15,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> +#include <linux/pm.h> #include <linux/power_supply.h> #include <linux/regmap.h> #include <linux/slab.h> @@ -23,6 +24,9 @@ #define AXP20X_PWR_STATUS_ACIN_PRESENT BIT(7) #define AXP20X_PWR_STATUS_ACIN_AVAIL BIT(6) +#define AXP813_ACIN_PATH_SEL BIT(7) +#define AXP813_ACIN_PATH_SEL_TO_BIT(x) (!!(x) << 7) + #define AXP813_VHOLD_MASK GENMASK(5, 3) #define AXP813_VHOLD_UV_TO_BIT(x) ((((x) / 100000) - 40) << 3) #define AXP813_VHOLD_REG_TO_UV(x) \ @@ -40,6 +44,9 @@ struct axp20x_ac_power { struct power_supply *supply; struct iio_channel *acin_v; struct iio_channel *acin_i; + bool has_acin_path_sel; + unsigned int num_irqs; + unsigned int irqs[]; }; static irqreturn_t axp20x_ac_power_irq(int irq, void *devid) @@ -86,6 +93,17 @@ static int axp20x_ac_power_get_property(struct power_supply *psy, return ret; val->intval = !!(reg & AXP20X_PWR_STATUS_ACIN_AVAIL); + + /* ACIN_PATH_SEL disables ACIN even if ACIN_AVAIL is set. */ + if (val->intval && power->has_acin_path_sel) { + ret = regmap_read(power->regmap, AXP813_ACIN_PATH_CTRL, + ®); + if (ret) + return ret; + + val->intval = !!(reg & AXP813_ACIN_PATH_SEL); + } + return 0; case POWER_SUPPLY_PROP_VOLTAGE_NOW: @@ -143,6 +161,11 @@ static int axp813_ac_power_set_property(struct power_supply *psy, struct axp20x_ac_power *power = power_supply_get_drvdata(psy); switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + return regmap_update_bits(power->regmap, AXP813_ACIN_PATH_CTRL, + AXP813_ACIN_PATH_SEL, + AXP813_ACIN_PATH_SEL_TO_BIT(val->intval)); + case POWER_SUPPLY_PROP_VOLTAGE_MIN: if (val->intval < 4000000 || val->intval > 4700000) return -EINVAL; @@ -169,7 +192,8 @@ static int axp813_ac_power_set_property(struct power_supply *psy, static int axp813_ac_power_prop_writeable(struct power_supply *psy, enum power_supply_property psp) { - return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN || + return psp == POWER_SUPPLY_PROP_ONLINE || + psp == POWER_SUPPLY_PROP_VOLTAGE_MIN || psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT; } @@ -221,34 +245,86 @@ static const struct power_supply_desc axp813_ac_power_desc = { .set_property = axp813_ac_power_set_property, }; +static const char * const axp20x_irq_names[] = { + "ACIN_PLUGIN", + "ACIN_REMOVAL", +}; + struct axp_data { const struct power_supply_desc *power_desc; + const char * const *irq_names; + unsigned int num_irq_names; bool acin_adc; + bool acin_path_sel; }; static const struct axp_data axp20x_data = { - .power_desc = &axp20x_ac_power_desc, - .acin_adc = true, + .power_desc = &axp20x_ac_power_desc, + .irq_names = axp20x_irq_names, + .num_irq_names = ARRAY_SIZE(axp20x_irq_names), + .acin_adc = true, + .acin_path_sel = false, }; static const struct axp_data axp22x_data = { - .power_desc = &axp22x_ac_power_desc, - .acin_adc = false, + .power_desc = &axp22x_ac_power_desc, + .irq_names = axp20x_irq_names, + .num_irq_names = ARRAY_SIZE(axp20x_irq_names), + .acin_adc = false, + .acin_path_sel = false, }; static const struct axp_data axp813_data = { - .power_desc = &axp813_ac_power_desc, - .acin_adc = false, + .power_desc = &axp813_ac_power_desc, + .irq_names = axp20x_irq_names, + .num_irq_names = ARRAY_SIZE(axp20x_irq_names), + .acin_adc = false, + .acin_path_sel = true, }; +#ifdef CONFIG_PM_SLEEP +static int axp20x_ac_power_suspend(struct device *dev) +{ + struct axp20x_ac_power *power = dev_get_drvdata(dev); + int i = 0; + + /* + * Allow wake via ACIN_PLUGIN only. + * + * As nested threaded IRQs are not automatically disabled during + * suspend, we must explicitly disable the remainder of the IRQs. + */ + if (device_may_wakeup(&power->supply->dev)) + enable_irq_wake(power->irqs[i++]); + while (i < power->num_irqs) + disable_irq(power->irqs[i++]); + + return 0; +} + +static int axp20x_ac_power_resume(struct device *dev) +{ + struct axp20x_ac_power *power = dev_get_drvdata(dev); + int i = 0; + + if (device_may_wakeup(&power->supply->dev)) + disable_irq_wake(power->irqs[i++]); + while (i < power->num_irqs) + enable_irq(power->irqs[i++]); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(axp20x_ac_power_pm_ops, axp20x_ac_power_suspend, + axp20x_ac_power_resume); + static int axp20x_ac_power_probe(struct platform_device *pdev) { struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); struct power_supply_config psy_cfg = {}; struct axp20x_ac_power *power; const struct axp_data *axp_data; - static const char * const irq_names[] = { "ACIN_PLUGIN", "ACIN_REMOVAL", - NULL }; int i, irq, ret; if (!of_device_is_available(pdev->dev.of_node)) @@ -259,12 +335,14 @@ static int axp20x_ac_power_probe(struct platform_device *pdev) return -EINVAL; } - power = devm_kzalloc(&pdev->dev, sizeof(*power), GFP_KERNEL); + axp_data = of_device_get_match_data(&pdev->dev); + + power = devm_kzalloc(&pdev->dev, + struct_size(power, irqs, axp_data->num_irq_names), + GFP_KERNEL); if (!power) return -ENOMEM; - axp_data = of_device_get_match_data(&pdev->dev); - if (axp_data->acin_adc) { power->acin_v = devm_iio_channel_get(&pdev->dev, "acin_v"); if (IS_ERR(power->acin_v)) { @@ -282,6 +360,8 @@ static int axp20x_ac_power_probe(struct platform_device *pdev) } power->regmap = dev_get_regmap(pdev->dev.parent, NULL); + power->has_acin_path_sel = axp_data->acin_path_sel; + power->num_irqs = axp_data->num_irq_names; platform_set_drvdata(pdev, power); @@ -295,20 +375,22 @@ static int axp20x_ac_power_probe(struct platform_device *pdev) return PTR_ERR(power->supply); /* Request irqs after registering, as irqs may trigger immediately */ - for (i = 0; irq_names[i]; i++) { - irq = platform_get_irq_byname(pdev, irq_names[i]); + for (i = 0; i < axp_data->num_irq_names; i++) { + irq = platform_get_irq_byname(pdev, axp_data->irq_names[i]); if (irq < 0) { - dev_warn(&pdev->dev, "No IRQ for %s: %d\n", - irq_names[i], irq); - continue; + dev_err(&pdev->dev, "No IRQ for %s: %d\n", + axp_data->irq_names[i], irq); + return irq; } - irq = regmap_irq_get_virq(axp20x->regmap_irqc, irq); - ret = devm_request_any_context_irq(&pdev->dev, irq, + power->irqs[i] = regmap_irq_get_virq(axp20x->regmap_irqc, irq); + ret = devm_request_any_context_irq(&pdev->dev, power->irqs[i], axp20x_ac_power_irq, 0, DRVNAME, power); - if (ret < 0) - dev_warn(&pdev->dev, "Error requesting %s IRQ: %d\n", - irq_names[i], ret); + if (ret < 0) { + dev_err(&pdev->dev, "Error requesting %s IRQ: %d\n", + axp_data->irq_names[i], ret); + return ret; + } } return 0; @@ -331,8 +413,9 @@ MODULE_DEVICE_TABLE(of, axp20x_ac_power_match); static struct platform_driver axp20x_ac_power_driver = { .probe = axp20x_ac_power_probe, .driver = { - .name = DRVNAME, - .of_match_table = axp20x_ac_power_match, + .name = DRVNAME, + .of_match_table = axp20x_ac_power_match, + .pm = &axp20x_ac_power_pm_ops, }, }; diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c index 5f0a5722b19e..4fde24b5f35a 100644 --- a/drivers/power/supply/axp20x_usb_power.c +++ b/drivers/power/supply/axp20x_usb_power.c @@ -16,6 +16,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> +#include <linux/pm.h> #include <linux/power_supply.h> #include <linux/regmap.h> #include <linux/slab.h> @@ -29,6 +30,9 @@ #define AXP20X_USB_STATUS_VBUS_VALID BIT(2) +#define AXP20X_VBUS_PATH_SEL BIT(7) +#define AXP20X_VBUS_PATH_SEL_OFFSET 7 + #define AXP20X_VBUS_VHOLD_uV(b) (4000000 + (((b) >> 3) & 7) * 100000) #define AXP20X_VBUS_VHOLD_MASK GENMASK(5, 3) #define AXP20X_VBUS_VHOLD_OFFSET 3 @@ -57,7 +61,6 @@ #define DEBOUNCE_TIME msecs_to_jiffies(50) struct axp20x_usb_power { - struct device_node *np; struct regmap *regmap; struct power_supply *supply; enum axp20x_variants axp20x_id; @@ -65,14 +68,32 @@ struct axp20x_usb_power { struct iio_channel *vbus_i; struct delayed_work vbus_detect; unsigned int old_status; + unsigned int online; + unsigned int num_irqs; + unsigned int irqs[]; }; +static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power) +{ + /* + * Polling is only necessary while VBUS is offline. While online, a + * present->absent transition implies an online->offline transition + * and will triger the VBUS_REMOVAL IRQ. + */ + if (power->axp20x_id >= AXP221_ID && !power->online) + return true; + + return false; +} + static irqreturn_t axp20x_usb_power_irq(int irq, void *devid) { struct axp20x_usb_power *power = devid; power_supply_changed(power->supply); + mod_delayed_work(system_wq, &power->vbus_detect, DEBOUNCE_TIME); + return IRQ_HANDLED; } @@ -92,17 +113,11 @@ static void axp20x_usb_power_poll_vbus(struct work_struct *work) power_supply_changed(power->supply); power->old_status = val; + power->online = val & AXP20X_PWR_STATUS_VBUS_USED; out: - mod_delayed_work(system_wq, &power->vbus_detect, DEBOUNCE_TIME); -} - -static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power) -{ - if (power->axp20x_id >= AXP221_ID) - return true; - - return false; + if (axp20x_usb_vbus_needs_polling(power)) + mod_delayed_work(system_wq, &power->vbus_detect, DEBOUNCE_TIME); } static int axp20x_get_current_max(struct axp20x_usb_power *power, int *val) @@ -264,6 +279,16 @@ static int axp20x_usb_power_get_property(struct power_supply *psy, return 0; } +static int axp813_usb_power_set_online(struct axp20x_usb_power *power, + int intval) +{ + int val = !intval << AXP20X_VBUS_PATH_SEL_OFFSET; + + return regmap_update_bits(power->regmap, + AXP20X_VBUS_IPSOUT_MGMT, + AXP20X_VBUS_PATH_SEL, val); +} + static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power, int intval) { @@ -345,6 +370,11 @@ static int axp20x_usb_power_set_property(struct power_supply *psy, struct axp20x_usb_power *power = power_supply_get_drvdata(psy); switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + if (power->axp20x_id != AXP813_ID) + return -EINVAL; + return axp813_usb_power_set_online(power, val->intval); + case POWER_SUPPLY_PROP_VOLTAGE_MIN: return axp20x_usb_power_set_voltage_min(power, val->intval); @@ -364,6 +394,18 @@ static int axp20x_usb_power_set_property(struct power_supply *psy, static int axp20x_usb_power_prop_writeable(struct power_supply *psy, enum power_supply_property psp) { + struct axp20x_usb_power *power = power_supply_get_drvdata(psy); + + /* + * The VBUS path select flag works differently on on AXP288 and newer: + * - On AXP20x and AXP22x, the flag enables VBUS (ignoring N_VBUSEN). + * - On AXP288 and AXP8xx, the flag disables VBUS (ignoring N_VBUSEN). + * We only expose the control on variants where it can be used to force + * the VBUS input offline. + */ + if (psp == POWER_SUPPLY_PROP_ONLINE) + return power->axp20x_id == AXP813_ID; + return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN || psp == POWER_SUPPLY_PROP_CURRENT_MAX; } @@ -406,6 +448,92 @@ static const struct power_supply_desc axp22x_usb_power_desc = { .set_property = axp20x_usb_power_set_property, }; +static const char * const axp20x_irq_names[] = { + "VBUS_PLUGIN", + "VBUS_REMOVAL", + "VBUS_VALID", + "VBUS_NOT_VALID", +}; + +static const char * const axp22x_irq_names[] = { + "VBUS_PLUGIN", + "VBUS_REMOVAL", +}; + +struct axp_data { + const struct power_supply_desc *power_desc; + const char * const *irq_names; + unsigned int num_irq_names; + enum axp20x_variants axp20x_id; +}; + +static const struct axp_data axp202_data = { + .power_desc = &axp20x_usb_power_desc, + .irq_names = axp20x_irq_names, + .num_irq_names = ARRAY_SIZE(axp20x_irq_names), + .axp20x_id = AXP202_ID, +}; + +static const struct axp_data axp221_data = { + .power_desc = &axp22x_usb_power_desc, + .irq_names = axp22x_irq_names, + .num_irq_names = ARRAY_SIZE(axp22x_irq_names), + .axp20x_id = AXP221_ID, +}; + +static const struct axp_data axp223_data = { + .power_desc = &axp22x_usb_power_desc, + .irq_names = axp22x_irq_names, + .num_irq_names = ARRAY_SIZE(axp22x_irq_names), + .axp20x_id = AXP223_ID, +}; + +static const struct axp_data axp813_data = { + .power_desc = &axp22x_usb_power_desc, + .irq_names = axp22x_irq_names, + .num_irq_names = ARRAY_SIZE(axp22x_irq_names), + .axp20x_id = AXP813_ID, +}; + +#ifdef CONFIG_PM_SLEEP +static int axp20x_usb_power_suspend(struct device *dev) +{ + struct axp20x_usb_power *power = dev_get_drvdata(dev); + int i = 0; + + /* + * Allow wake via VBUS_PLUGIN only. + * + * As nested threaded IRQs are not automatically disabled during + * suspend, we must explicitly disable the remainder of the IRQs. + */ + if (device_may_wakeup(&power->supply->dev)) + enable_irq_wake(power->irqs[i++]); + while (i < power->num_irqs) + disable_irq(power->irqs[i++]); + + return 0; +} + +static int axp20x_usb_power_resume(struct device *dev) +{ + struct axp20x_usb_power *power = dev_get_drvdata(dev); + int i = 0; + + if (device_may_wakeup(&power->supply->dev)) + disable_irq_wake(power->irqs[i++]); + while (i < power->num_irqs) + enable_irq(power->irqs[i++]); + + mod_delayed_work(system_wq, &power->vbus_detect, DEBOUNCE_TIME); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(axp20x_usb_power_pm_ops, axp20x_usb_power_suspend, + axp20x_usb_power_resume); + static int configure_iio_channels(struct platform_device *pdev, struct axp20x_usb_power *power) { @@ -441,12 +569,7 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); struct power_supply_config psy_cfg = {}; struct axp20x_usb_power *power; - static const char * const axp20x_irq_names[] = { "VBUS_PLUGIN", - "VBUS_REMOVAL", "VBUS_VALID", "VBUS_NOT_VALID", NULL }; - static const char * const axp22x_irq_names[] = { - "VBUS_PLUGIN", "VBUS_REMOVAL", NULL }; - const char * const *irq_names; - const struct power_supply_desc *usb_power_desc; + const struct axp_data *axp_data; int i, irq, ret; if (!of_device_is_available(pdev->dev.of_node)) @@ -457,16 +580,19 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) return -EINVAL; } - power = devm_kzalloc(&pdev->dev, sizeof(*power), GFP_KERNEL); + axp_data = of_device_get_match_data(&pdev->dev); + + power = devm_kzalloc(&pdev->dev, + struct_size(power, irqs, axp_data->num_irq_names), + GFP_KERNEL); if (!power) return -ENOMEM; platform_set_drvdata(pdev, power); - power->axp20x_id = (enum axp20x_variants)of_device_get_match_data( - &pdev->dev); - power->np = pdev->dev.of_node; + power->axp20x_id = axp_data->axp20x_id; power->regmap = axp20x->regmap; + power->num_irqs = axp_data->num_irq_names; if (power->axp20x_id == AXP202_ID) { /* Enable vbus valid checking */ @@ -483,18 +609,6 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) if (ret) return ret; - - usb_power_desc = &axp20x_usb_power_desc; - irq_names = axp20x_irq_names; - } else if (power->axp20x_id == AXP221_ID || - power->axp20x_id == AXP223_ID || - power->axp20x_id == AXP813_ID) { - usb_power_desc = &axp22x_usb_power_desc; - irq_names = axp22x_irq_names; - } else { - dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n", - axp20x->variant); - return -EINVAL; } if (power->axp20x_id == AXP813_ID) { @@ -506,25 +620,29 @@ static int axp20x_usb_power_probe(struct platform_device *pdev) psy_cfg.of_node = pdev->dev.of_node; psy_cfg.drv_data = power; - power->supply = devm_power_supply_register(&pdev->dev, usb_power_desc, + power->supply = devm_power_supply_register(&pdev->dev, + axp_data->power_desc, &psy_cfg); if (IS_ERR(power->supply)) return PTR_ERR(power->supply); /* Request irqs after registering, as irqs may trigger immediately */ - for (i = 0; irq_names[i]; i++) { - irq = platform_get_irq_byname(pdev, irq_names[i]); + for (i = 0; i < axp_data->num_irq_names; i++) { + irq = platform_get_irq_byname(pdev, axp_data->irq_names[i]); if (irq < 0) { - dev_warn(&pdev->dev, "No IRQ for %s: %d\n", - irq_names[i], irq); - continue; + dev_err(&pdev->dev, "No IRQ for %s: %d\n", + axp_data->irq_names[i], irq); + return irq; + } + power->irqs[i] = regmap_irq_get_virq(axp20x->regmap_irqc, irq); + ret = devm_request_any_context_irq(&pdev->dev, power->irqs[i], + axp20x_usb_power_irq, 0, + DRVNAME, power); + if (ret < 0) { + dev_err(&pdev->dev, "Error requesting %s IRQ: %d\n", + axp_data->irq_names[i], ret); + return ret; } - irq = regmap_irq_get_virq(axp20x->regmap_irqc, irq); - ret = devm_request_any_context_irq(&pdev->dev, irq, - axp20x_usb_power_irq, 0, DRVNAME, power); - if (ret < 0) - dev_warn(&pdev->dev, "Error requesting %s IRQ: %d\n", - irq_names[i], ret); } INIT_DELAYED_WORK(&power->vbus_detect, axp20x_usb_power_poll_vbus); @@ -546,16 +664,16 @@ static int axp20x_usb_power_remove(struct platform_device *pdev) static const struct of_device_id axp20x_usb_power_match[] = { { .compatible = "x-powers,axp202-usb-power-supply", - .data = (void *)AXP202_ID, + .data = &axp202_data, }, { .compatible = "x-powers,axp221-usb-power-supply", - .data = (void *)AXP221_ID, + .data = &axp221_data, }, { .compatible = "x-powers,axp223-usb-power-supply", - .data = (void *)AXP223_ID, + .data = &axp223_data, }, { .compatible = "x-powers,axp813-usb-power-supply", - .data = (void *)AXP813_ID, + .data = &axp813_data, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, axp20x_usb_power_match); @@ -564,8 +682,9 @@ static struct platform_driver axp20x_usb_power_driver = { .probe = axp20x_usb_power_probe, .remove = axp20x_usb_power_remove, .driver = { - .name = DRVNAME, - .of_match_table = axp20x_usb_power_match, + .name = DRVNAME, + .of_match_table = axp20x_usb_power_match, + .pm = &axp20x_usb_power_pm_ops, }, }; diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c index 9d1ec8d677de..aebd1253dbc9 100644 --- a/drivers/power/supply/bq25890_charger.c +++ b/drivers/power/supply/bq25890_charger.c @@ -25,12 +25,20 @@ #define BQ25895_ID 7 #define BQ25896_ID 0 +enum bq25890_chip_version { + BQ25890, + BQ25892, + BQ25895, + BQ25896, +}; + enum bq25890_fields { F_EN_HIZ, F_EN_ILIM, F_IILIM, /* Reg00 */ F_BHOT, F_BCOLD, F_VINDPM_OFS, /* Reg01 */ F_CONV_START, F_CONV_RATE, F_BOOSTF, F_ICO_EN, F_HVDCP_EN, F_MAXC_EN, F_FORCE_DPM, F_AUTO_DPDM_EN, /* Reg02 */ - F_BAT_LOAD_EN, F_WD_RST, F_OTG_CFG, F_CHG_CFG, F_SYSVMIN, /* Reg03 */ + F_BAT_LOAD_EN, F_WD_RST, F_OTG_CFG, F_CHG_CFG, F_SYSVMIN, + F_MIN_VBAT_SEL, /* Reg03 */ F_PUMPX_EN, F_ICHG, /* Reg04 */ F_IPRECHG, F_ITERM, /* Reg05 */ F_VREG, F_BATLOWV, F_VRECHG, /* Reg06 */ @@ -39,8 +47,9 @@ enum bq25890_fields { F_BATCMP, F_VCLAMP, F_TREG, /* Reg08 */ F_FORCE_ICO, F_TMR2X_EN, F_BATFET_DIS, F_JEITA_VSET, F_BATFET_DLY, F_BATFET_RST_EN, F_PUMPX_UP, F_PUMPX_DN, /* Reg09 */ - F_BOOSTV, F_BOOSTI, /* Reg0A */ - F_VBUS_STAT, F_CHG_STAT, F_PG_STAT, F_SDP_STAT, F_VSYS_STAT, /* Reg0B */ + F_BOOSTV, F_PFM_OTG_DIS, F_BOOSTI, /* Reg0A */ + F_VBUS_STAT, F_CHG_STAT, F_PG_STAT, F_SDP_STAT, F_0B_RSVD, + F_VSYS_STAT, /* Reg0B */ F_WD_FAULT, F_BOOST_FAULT, F_CHG_FAULT, F_BAT_FAULT, F_NTC_FAULT, /* Reg0C */ F_FORCE_VINDPM, F_VINDPM, /* Reg0D */ @@ -91,7 +100,7 @@ struct bq25890_device { struct regmap *rmap; struct regmap_field *rmap_fields[F_MAX_FIELDS]; - int chip_id; + enum bq25890_chip_version chip_version; struct bq25890_init_data init_data; struct bq25890_state state; @@ -111,8 +120,7 @@ static const struct regmap_access_table bq25890_writeable_regs = { static const struct regmap_range bq25890_volatile_reg_ranges[] = { regmap_reg_range(0x00, 0x00), regmap_reg_range(0x09, 0x09), - regmap_reg_range(0x0b, 0x0c), - regmap_reg_range(0x0e, 0x14), + regmap_reg_range(0x0b, 0x14), }; static const struct regmap_access_table bq25890_volatile_regs = { @@ -155,7 +163,7 @@ static const struct reg_field bq25890_reg_fields[] = { [F_OTG_CFG] = REG_FIELD(0x03, 5, 5), [F_CHG_CFG] = REG_FIELD(0x03, 4, 4), [F_SYSVMIN] = REG_FIELD(0x03, 1, 3), - /* MIN_VBAT_SEL on BQ25896 */ + [F_MIN_VBAT_SEL] = REG_FIELD(0x03, 0, 0), // BQ25896 only /* REG04 */ [F_PUMPX_EN] = REG_FIELD(0x04, 7, 7), [F_ICHG] = REG_FIELD(0x04, 0, 6), @@ -188,8 +196,8 @@ static const struct reg_field bq25890_reg_fields[] = { [F_PUMPX_DN] = REG_FIELD(0x09, 0, 0), /* REG0A */ [F_BOOSTV] = REG_FIELD(0x0A, 4, 7), - /* PFM_OTG_DIS 3 on BQ25896 */ [F_BOOSTI] = REG_FIELD(0x0A, 0, 2), // reserved on BQ25895 + [F_PFM_OTG_DIS] = REG_FIELD(0x0A, 3, 3), // BQ25896 only /* REG0B */ [F_VBUS_STAT] = REG_FIELD(0x0B, 5, 7), [F_CHG_STAT] = REG_FIELD(0x0B, 3, 4), @@ -275,6 +283,7 @@ static const union { struct bq25890_lookup lt; } bq25890_tables[] = { /* range tables */ + /* TODO: BQ25896 has max ICHG 3008 mA */ [TBL_ICHG] = { .rt = {0, 5056000, 64000} }, /* uA */ [TBL_ITERM] = { .rt = {64000, 1024000, 64000} }, /* uA */ [TBL_VREG] = { .rt = {3840000, 4608000, 16000} }, /* uV */ @@ -391,11 +400,13 @@ static int bq25890_power_supply_get_property(struct power_supply *psy, break; case POWER_SUPPLY_PROP_MODEL_NAME: - if (bq->chip_id == BQ25890_ID) + if (bq->chip_version == BQ25890) val->strval = "BQ25890"; - else if (bq->chip_id == BQ25895_ID) + else if (bq->chip_version == BQ25892) + val->strval = "BQ25892"; + else if (bq->chip_version == BQ25895) val->strval = "BQ25895"; - else if (bq->chip_id == BQ25896_ID) + else if (bq->chip_version == BQ25896) val->strval = "BQ25896"; else val->strval = "UNKNOWN"; @@ -741,6 +752,56 @@ static int bq25890_usb_notifier(struct notifier_block *nb, unsigned long val, return NOTIFY_OK; } +static int bq25890_get_chip_version(struct bq25890_device *bq) +{ + int id, rev; + + id = bq25890_field_read(bq, F_PN); + if (id < 0) { + dev_err(bq->dev, "Cannot read chip ID.\n"); + return id; + } + + rev = bq25890_field_read(bq, F_DEV_REV); + if (rev < 0) { + dev_err(bq->dev, "Cannot read chip revision.\n"); + return rev; + } + + switch (id) { + case BQ25890_ID: + bq->chip_version = BQ25890; + break; + + /* BQ25892 and BQ25896 share same ID 0 */ + case BQ25896_ID: + switch (rev) { + case 2: + bq->chip_version = BQ25896; + break; + case 1: + bq->chip_version = BQ25892; + break; + default: + dev_err(bq->dev, + "Unknown device revision %d, assume BQ25892\n", + rev); + bq->chip_version = BQ25892; + } + break; + + case BQ25895_ID: + bq->chip_version = BQ25895; + break; + + default: + dev_err(bq->dev, "Unknown chip ID %d\n", id); + return -ENODEV; + } + + return 0; +} + static int bq25890_irq_probe(struct bq25890_device *bq) { struct gpio_desc *irq; @@ -859,16 +920,10 @@ static int bq25890_probe(struct i2c_client *client, i2c_set_clientdata(client, bq); - bq->chip_id = bq25890_field_read(bq, F_PN); - if (bq->chip_id < 0) { - dev_err(dev, "Cannot read chip ID.\n"); - return bq->chip_id; - } - - if ((bq->chip_id != BQ25890_ID) && (bq->chip_id != BQ25895_ID) - && (bq->chip_id != BQ25896_ID)) { - dev_err(dev, "Chip with ID=%d, not supported!\n", bq->chip_id); - return -ENODEV; + ret = bq25890_get_chip_version(bq); + if (ret) { + dev_err(dev, "Cannot read chip ID or unknown chip.\n"); + return ret; } if (!dev->platform_data) { @@ -986,12 +1041,18 @@ static const struct dev_pm_ops bq25890_pm = { static const struct i2c_device_id bq25890_i2c_ids[] = { { "bq25890", 0 }, + { "bq25892", 0 }, + { "bq25895", 0 }, + { "bq25896", 0 }, {}, }; MODULE_DEVICE_TABLE(i2c, bq25890_i2c_ids); static const struct of_device_id bq25890_of_match[] = { { .compatible = "ti,bq25890", }, + { .compatible = "ti,bq25892", }, + { .compatible = "ti,bq25895", }, + { .compatible = "ti,bq25896", }, { }, }; MODULE_DEVICE_TABLE(of, bq25890_of_match); diff --git a/drivers/power/supply/cros_usbpd-charger.c b/drivers/power/supply/cros_usbpd-charger.c index 6cc7c3910e09..ffad9ee03a68 100644 --- a/drivers/power/supply/cros_usbpd-charger.c +++ b/drivers/power/supply/cros_usbpd-charger.c @@ -132,11 +132,8 @@ static int cros_usbpd_charger_get_num_ports(struct charger_data *charger) ret = cros_usbpd_charger_ec_command(charger, 0, EC_CMD_CHARGE_PORT_COUNT, NULL, 0, &resp, sizeof(resp)); - if (ret < 0) { - dev_err(charger->dev, - "Unable to get the number of ports (err:0x%x)\n", ret); + if (ret < 0) return ret; - } return resp.port_count; } @@ -148,11 +145,8 @@ static int cros_usbpd_charger_get_usbpd_num_ports(struct charger_data *charger) ret = cros_usbpd_charger_ec_command(charger, 0, EC_CMD_USB_PD_PORTS, NULL, 0, &resp, sizeof(resp)); - if (ret < 0) { - dev_err(charger->dev, - "Unable to get the number or ports (err:0x%x)\n", ret); + if (ret < 0) return ret; - } return resp.num_ports; } diff --git a/drivers/power/supply/ingenic-battery.c b/drivers/power/supply/ingenic-battery.c index 35816d4b3012..2748715c4c75 100644 --- a/drivers/power/supply/ingenic-battery.c +++ b/drivers/power/supply/ingenic-battery.c @@ -100,10 +100,17 @@ static int ingenic_battery_set_scale(struct ingenic_battery *bat) return -EINVAL; } - return iio_write_channel_attribute(bat->channel, - scale_raw[best_idx], - scale_raw[best_idx + 1], - IIO_CHAN_INFO_SCALE); + /* Only set scale if there is more than one (fractional) entry */ + if (scale_len > 2) { + ret = iio_write_channel_attribute(bat->channel, + scale_raw[best_idx], + scale_raw[best_idx + 1], + IIO_CHAN_INFO_SCALE); + if (ret) + return ret; + } + + return 0; } static enum power_supply_property ingenic_battery_properties[] = { diff --git a/drivers/power/supply/ipaq_micro_battery.c b/drivers/power/supply/ipaq_micro_battery.c index 03592ceaca88..192d9db0fb00 100644 --- a/drivers/power/supply/ipaq_micro_battery.c +++ b/drivers/power/supply/ipaq_micro_battery.c @@ -149,7 +149,7 @@ static int micro_batt_get_property(struct power_supply *b, default: val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN; break; - }; + } break; case POWER_SUPPLY_PROP_STATUS: val->intval = get_status(b); @@ -168,7 +168,7 @@ static int micro_batt_get_property(struct power_supply *b, break; default: return -EINVAL; - }; + } return 0; } @@ -185,7 +185,7 @@ static int micro_ac_get_property(struct power_supply *b, break; default: return -EINVAL; - }; + } return 0; } diff --git a/drivers/power/supply/ltc2941-battery-gauge.c b/drivers/power/supply/ltc2941-battery-gauge.c index da49436176cd..30a9014b2f95 100644 --- a/drivers/power/supply/ltc2941-battery-gauge.c +++ b/drivers/power/supply/ltc2941-battery-gauge.c @@ -449,7 +449,7 @@ static int ltc294x_i2c_remove(struct i2c_client *client) { struct ltc294x_info *info = i2c_get_clientdata(client); - cancel_delayed_work(&info->work); + cancel_delayed_work_sync(&info->work); power_supply_unregister(info->supply); return 0; } diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c index 62499018e68b..8a1f0ee493aa 100644 --- a/drivers/power/supply/max17040_battery.c +++ b/drivers/power/supply/max17040_battery.c @@ -13,6 +13,7 @@ #include <linux/err.h> #include <linux/i2c.h> #include <linux/delay.h> +#include <linux/interrupt.h> #include <linux/power_supply.h> #include <linux/max17040_battery.h> #include <linux/slab.h> @@ -28,6 +29,9 @@ #define MAX17040_DELAY 1000 #define MAX17040_BATTERY_FULL 95 +#define MAX17040_ATHD_MASK 0xFFC0 +#define MAX17040_ATHD_DEFAULT_POWER_UP 4 + struct max17040_chip { struct i2c_client *client; struct delayed_work work; @@ -42,6 +46,8 @@ struct max17040_chip { int soc; /* State Of Charge */ int status; + /* Low alert threshold from 32% to 1% of the State of Charge */ + u32 low_soc_alert; }; static int max17040_get_property(struct power_supply *psy, @@ -98,6 +104,21 @@ static void max17040_reset(struct i2c_client *client) max17040_write_reg(client, MAX17040_CMD, 0x0054); } +static int max17040_set_low_soc_alert(struct i2c_client *client, u32 level) +{ + int ret; + u16 data; + + level = 32 - level; + data = max17040_read_reg(client, MAX17040_RCOMP); + /* clear the alrt bit and set LSb 5 bits */ + data &= MAX17040_ATHD_MASK; + data |= level; + ret = max17040_write_reg(client, MAX17040_RCOMP, data); + + return ret; +} + static void max17040_get_vcell(struct i2c_client *client) { struct max17040_chip *chip = i2c_get_clientdata(client); @@ -160,21 +181,81 @@ static void max17040_get_status(struct i2c_client *client) chip->status = POWER_SUPPLY_STATUS_FULL; } +static int max17040_get_of_data(struct max17040_chip *chip) +{ + struct device *dev = &chip->client->dev; + + chip->low_soc_alert = MAX17040_ATHD_DEFAULT_POWER_UP; + device_property_read_u32(dev, + "maxim,alert-low-soc-level", + &chip->low_soc_alert); + + if (chip->low_soc_alert <= 0 || chip->low_soc_alert >= 33) + return -EINVAL; + + return 0; +} + +static void max17040_check_changes(struct i2c_client *client) +{ + max17040_get_vcell(client); + max17040_get_soc(client); + max17040_get_online(client); + max17040_get_status(client); +} + static void max17040_work(struct work_struct *work) { struct max17040_chip *chip; + int last_soc, last_status; chip = container_of(work, struct max17040_chip, work.work); - max17040_get_vcell(chip->client); - max17040_get_soc(chip->client); - max17040_get_online(chip->client); - max17040_get_status(chip->client); + /* store SOC and status to check changes */ + last_soc = chip->soc; + last_status = chip->status; + max17040_check_changes(chip->client); + + /* check changes and send uevent */ + if (last_soc != chip->soc || last_status != chip->status) + power_supply_changed(chip->battery); queue_delayed_work(system_power_efficient_wq, &chip->work, MAX17040_DELAY); } +static irqreturn_t max17040_thread_handler(int id, void *dev) +{ + struct max17040_chip *chip = dev; + struct i2c_client *client = chip->client; + + dev_warn(&client->dev, "IRQ: Alert battery low level"); + /* read registers */ + max17040_check_changes(chip->client); + + /* send uevent */ + power_supply_changed(chip->battery); + + /* reset alert bit */ + max17040_set_low_soc_alert(client, chip->low_soc_alert); + + return IRQ_HANDLED; +} + +static int max17040_enable_alert_irq(struct max17040_chip *chip) +{ + struct i2c_client *client = chip->client; + unsigned int flags; + int ret; + + flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; + ret = devm_request_threaded_irq(&client->dev, client->irq, NULL, + max17040_thread_handler, flags, + chip->battery->desc->name, chip); + + return ret; +} + static enum power_supply_property max17040_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_ONLINE, @@ -196,6 +277,7 @@ static int max17040_probe(struct i2c_client *client, struct i2c_adapter *adapter = client->adapter; struct power_supply_config psy_cfg = {}; struct max17040_chip *chip; + int ret; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) return -EIO; @@ -206,6 +288,12 @@ static int max17040_probe(struct i2c_client *client, chip->client = client; chip->pdata = client->dev.platform_data; + ret = max17040_get_of_data(chip); + if (ret) { + dev_err(&client->dev, + "failed: low SOC alert OF data out of bounds\n"); + return ret; + } i2c_set_clientdata(client, chip); psy_cfg.drv_data = chip; @@ -220,6 +308,24 @@ static int max17040_probe(struct i2c_client *client, max17040_reset(client); max17040_get_version(client); + /* check interrupt */ + if (client->irq && of_device_is_compatible(client->dev.of_node, + "maxim,max77836-battery")) { + ret = max17040_set_low_soc_alert(client, chip->low_soc_alert); + if (ret) { + dev_err(&client->dev, + "Failed to set low SOC alert: err %d\n", ret); + return ret; + } + + ret = max17040_enable_alert_irq(chip); + if (ret) { + client->irq = 0; + dev_warn(&client->dev, + "Failed to get IRQ err %d\n", ret); + } + } + INIT_DEFERRABLE_WORK(&chip->work, max17040_work); queue_delayed_work(system_power_efficient_wq, &chip->work, MAX17040_DELAY); @@ -244,6 +350,10 @@ static int max17040_suspend(struct device *dev) struct max17040_chip *chip = i2c_get_clientdata(client); cancel_delayed_work(&chip->work); + + if (client->irq && device_may_wakeup(dev)) + enable_irq_wake(client->irq); + return 0; } @@ -254,6 +364,10 @@ static int max17040_resume(struct device *dev) queue_delayed_work(system_power_efficient_wq, &chip->work, MAX17040_DELAY); + + if (client->irq && device_may_wakeup(dev)) + disable_irq_wake(client->irq); + return 0; } diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c index 0dfad2cf13fe..69ec4295d55d 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -282,6 +282,8 @@ static int max17042_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042) ret = regmap_read(map, MAX17042_V_empty, &data); + else if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17055) + ret = regmap_read(map, MAX17055_V_empty, &data); else ret = regmap_read(map, MAX17047_V_empty, &data); if (ret < 0) @@ -627,7 +629,8 @@ static void max17042_write_config_regs(struct max17042_chip *chip) config->filter_cfg); regmap_write(map, MAX17042_RelaxCFG, config->relax_cfg); if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17047 || - chip->chip_type == MAXIM_DEVICE_TYPE_MAX17050) + chip->chip_type == MAXIM_DEVICE_TYPE_MAX17050 || + chip->chip_type == MAXIM_DEVICE_TYPE_MAX17055) regmap_write(map, MAX17047_FullSOCThr, config->full_soc_thresh); } @@ -758,6 +761,8 @@ static inline void max17042_override_por_values(struct max17042_chip *chip) if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042) max17042_override_por(map, MAX17042_V_empty, config->vempty); + if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17055) + max17042_override_por(map, MAX17055_V_empty, config->vempty); else max17042_override_por(map, MAX17047_V_empty, config->vempty); max17042_override_por(map, MAX17042_TempNom, config->temp_nom); @@ -765,7 +770,10 @@ static inline void max17042_override_por_values(struct max17042_chip *chip) max17042_override_por(map, MAX17042_FCTC, config->fctc); max17042_override_por(map, MAX17042_RCOMP0, config->rcomp0); max17042_override_por(map, MAX17042_TempCo, config->tcompc0); - if (chip->chip_type) { + if (chip->chip_type && + ((chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042) || + (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17047) || + (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17050))) { max17042_override_por(map, MAX17042_EmptyTempCo, config->empty_tempco); max17042_override_por(map, MAX17042_K_empty0, @@ -929,7 +937,8 @@ max17042_get_default_pdata(struct max17042_chip *chip) if (!pdata) return pdata; - if (chip->chip_type != MAXIM_DEVICE_TYPE_MAX17042) { + if ((chip->chip_type == MAXIM_DEVICE_TYPE_MAX17047) || + (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17050)) { pdata->init_data = max17047_default_pdata_init_regs; pdata->num_init_data = ARRAY_SIZE(max17047_default_pdata_init_regs); @@ -1167,6 +1176,7 @@ static const struct of_device_id max17042_dt_match[] = { { .compatible = "maxim,max17042" }, { .compatible = "maxim,max17047" }, { .compatible = "maxim,max17050" }, + { .compatible = "maxim,max17055" }, { }, }; MODULE_DEVICE_TABLE(of, max17042_dt_match); @@ -1176,6 +1186,7 @@ static const struct i2c_device_id max17042_id[] = { { "max17042", MAXIM_DEVICE_TYPE_MAX17042 }, { "max17047", MAXIM_DEVICE_TYPE_MAX17047 }, { "max17050", MAXIM_DEVICE_TYPE_MAX17050 }, + { "max17055", MAXIM_DEVICE_TYPE_MAX17055 }, { } }; MODULE_DEVICE_TABLE(i2c, max17042_id); diff --git a/drivers/power/supply/max77650-charger.c b/drivers/power/supply/max77650-charger.c index 5f9477c5cf5a..d913428bedc0 100644 --- a/drivers/power/supply/max77650-charger.c +++ b/drivers/power/supply/max77650-charger.c @@ -354,9 +354,16 @@ static int max77650_charger_remove(struct platform_device *pdev) return max77650_charger_disable(chg); } +static const struct of_device_id max77650_charger_of_match[] = { + { .compatible = "maxim,max77650-charger" }, + { } +}; +MODULE_DEVICE_TABLE(of, max77650_charger_of_match); + static struct platform_driver max77650_charger_driver = { .driver = { .name = "max77650-charger", + .of_match_table = max77650_charger_of_match, }, .probe = max77650_charger_probe, .remove = max77650_charger_remove, diff --git a/drivers/power/supply/pda_power.c b/drivers/power/supply/pda_power.c index 3ae5707d39fa..03a37fd6be27 100644 --- a/drivers/power/supply/pda_power.c +++ b/drivers/power/supply/pda_power.c @@ -429,6 +429,10 @@ wrongid: static int pda_power_remove(struct platform_device *pdev) { +#if IS_ENABLED(CONFIG_USB_PHY) + if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) + usb_unregister_notifier(transceiver, &otg_nb); +#endif if (pdata->is_usb_online && usb_irq) free_irq(usb_irq->start, pda_psy_usb); if (pdata->is_ac_online && ac_irq) diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index 5c36c430ce8b..1a9a9fae73d3 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -565,9 +565,11 @@ EXPORT_SYMBOL_GPL(devm_power_supply_get_by_phandle); int power_supply_get_battery_info(struct power_supply *psy, struct power_supply_battery_info *info) { + struct power_supply_resistance_temp_table *resist_table; struct device_node *battery_np; const char *value; int err, len, index; + const __be32 *list; info->energy_full_design_uwh = -EINVAL; info->charge_full_design_uah = -EINVAL; @@ -578,6 +580,7 @@ int power_supply_get_battery_info(struct power_supply *psy, info->constant_charge_current_max_ua = -EINVAL; info->constant_charge_voltage_max_uv = -EINVAL; info->factory_internal_resistance_uohm = -EINVAL; + info->resist_table = NULL; for (index = 0; index < POWER_SUPPLY_OCV_TEMP_MAX; index++) { info->ocv_table[index] = NULL; @@ -644,7 +647,6 @@ int power_supply_get_battery_info(struct power_supply *psy, for (index = 0; index < len; index++) { struct power_supply_battery_ocv_table *table; char *propname; - const __be32 *list; int i, tab_len, size; propname = kasprintf(GFP_KERNEL, "ocv-capacity-table-%d", index); @@ -677,6 +679,26 @@ int power_supply_get_battery_info(struct power_supply *psy, } } + list = of_get_property(battery_np, "resistance-temp-table", &len); + if (!list || !len) + goto out_put_node; + + info->resist_table_size = len / (2 * sizeof(__be32)); + resist_table = info->resist_table = devm_kcalloc(&psy->dev, + info->resist_table_size, + sizeof(*resist_table), + GFP_KERNEL); + if (!info->resist_table) { + power_supply_put_battery_info(psy, info); + err = -ENOMEM; + goto out_put_node; + } + + for (index = 0; index < info->resist_table_size; index++) { + resist_table[index].temp = be32_to_cpu(*list++); + resist_table[index].resistance = be32_to_cpu(*list++); + } + out_put_node: of_node_put(battery_np); return err; @@ -692,10 +714,53 @@ void power_supply_put_battery_info(struct power_supply *psy, if (info->ocv_table[i]) devm_kfree(&psy->dev, info->ocv_table[i]); } + + if (info->resist_table) + devm_kfree(&psy->dev, info->resist_table); } EXPORT_SYMBOL_GPL(power_supply_put_battery_info); /** + * power_supply_temp2resist_simple() - find the battery internal resistance + * percent + * @table: Pointer to battery resistance temperature table + * @table_len: The table length + * @ocv: Current temperature + * + * This helper function is used to look up battery internal resistance percent + * according to current temperature value from the resistance temperature table, + * and the table must be ordered descending. Then the actual battery internal + * resistance = the ideal battery internal resistance * percent / 100. + * + * Return: the battery internal resistance percent + */ +int power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table, + int table_len, int temp) +{ + int i, resist; + + for (i = 0; i < table_len; i++) + if (temp > table[i].temp) + break; + + if (i > 0 && i < table_len) { + int tmp; + + tmp = (table[i - 1].resistance - table[i].resistance) * + (temp - table[i].temp); + tmp /= table[i - 1].temp - table[i].temp; + resist = tmp + table[i].resistance; + } else if (i == 0) { + resist = table[0].resistance; + } else { + resist = table[table_len - 1].resistance; + } + + return resist; +} +EXPORT_SYMBOL_GPL(power_supply_temp2resist_simple); + +/** * power_supply_ocv2cap_simple() - find the battery capacity * @table: Pointer to battery OCV lookup table * @table_len: OCV table length diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c index f8d74e9f7931..6acd242eed48 100644 --- a/drivers/power/supply/sbs-battery.c +++ b/drivers/power/supply/sbs-battery.c @@ -5,6 +5,7 @@ * Copyright (c) 2010, NVIDIA Corporation. */ +#include <linux/bits.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/gpio/consumer.h> @@ -46,10 +47,10 @@ enum { /* Battery Mode defines */ #define BATTERY_MODE_OFFSET 0x03 -#define BATTERY_MODE_MASK 0x8000 -enum sbs_battery_mode { - BATTERY_MODE_AMPS = 0, - BATTERY_MODE_WATTS = 0x8000 +#define BATTERY_MODE_CAPACITY_MASK BIT(15) +enum sbs_capacity_mode { + CAPACITY_MODE_AMPS = 0, + CAPACITY_MODE_WATTS = BATTERY_MODE_CAPACITY_MASK }; /* manufacturer access defines */ @@ -518,8 +519,8 @@ static void sbs_unit_adjustment(struct i2c_client *client, } } -static enum sbs_battery_mode sbs_set_battery_mode(struct i2c_client *client, - enum sbs_battery_mode mode) +static enum sbs_capacity_mode sbs_set_capacity_mode(struct i2c_client *client, + enum sbs_capacity_mode mode) { int ret, original_val; @@ -527,13 +528,13 @@ static enum sbs_battery_mode sbs_set_battery_mode(struct i2c_client *client, if (original_val < 0) return original_val; - if ((original_val & BATTERY_MODE_MASK) == mode) + if ((original_val & BATTERY_MODE_CAPACITY_MASK) == mode) return mode; - if (mode == BATTERY_MODE_AMPS) - ret = original_val & ~BATTERY_MODE_MASK; + if (mode == CAPACITY_MODE_AMPS) + ret = original_val & ~BATTERY_MODE_CAPACITY_MASK; else - ret = original_val | BATTERY_MODE_MASK; + ret = original_val | BATTERY_MODE_CAPACITY_MASK; ret = sbs_write_word_data(client, BATTERY_MODE_OFFSET, ret); if (ret < 0) @@ -541,7 +542,7 @@ static enum sbs_battery_mode sbs_set_battery_mode(struct i2c_client *client, usleep_range(1000, 2000); - return original_val & BATTERY_MODE_MASK; + return original_val & BATTERY_MODE_CAPACITY_MASK; } static int sbs_get_battery_capacity(struct i2c_client *client, @@ -549,13 +550,13 @@ static int sbs_get_battery_capacity(struct i2c_client *client, union power_supply_propval *val) { s32 ret; - enum sbs_battery_mode mode = BATTERY_MODE_WATTS; + enum sbs_capacity_mode mode = CAPACITY_MODE_WATTS; if (power_supply_is_amp_property(psp)) - mode = BATTERY_MODE_AMPS; + mode = CAPACITY_MODE_AMPS; - mode = sbs_set_battery_mode(client, mode); - if (mode < 0) + mode = sbs_set_capacity_mode(client, mode); + if ((int)mode < 0) return mode; ret = sbs_read_word_data(client, sbs_data[reg_offset].addr); @@ -564,7 +565,7 @@ static int sbs_get_battery_capacity(struct i2c_client *client, val->intval = ret; - ret = sbs_set_battery_mode(client, mode); + ret = sbs_set_capacity_mode(client, mode); if (ret < 0) return ret; @@ -1001,6 +1002,6 @@ module_i2c_driver(sbs_battery_driver); MODULE_DESCRIPTION("SBS battery monitor driver"); MODULE_LICENSE("GPL"); -module_param(force_load, bool, S_IRUSR | S_IRGRP | S_IROTH); +module_param(force_load, bool, 0444); MODULE_PARM_DESC(force_load, "Attempt to load the driver even if no battery is connected"); diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c index bc8f5bda5762..469c83fdaa8e 100644 --- a/drivers/power/supply/sc27xx_fuel_gauge.c +++ b/drivers/power/supply/sc27xx_fuel_gauge.c @@ -62,6 +62,8 @@ #define SC27XX_FGU_CUR_BASIC_ADC 8192 #define SC27XX_FGU_SAMPLE_HZ 2 +/* micro Ohms */ +#define SC27XX_FGU_IDEAL_RESISTANCE 20000 /* * struct sc27xx_fgu_data: describe the FGU device @@ -81,9 +83,12 @@ * @max_volt: the maximum constant input voltage in millivolt * @min_volt: the minimum drained battery voltage in microvolt * @table_len: the capacity table length + * @resist_table_len: the resistance table length * @cur_1000ma_adc: ADC value corresponding to 1000 mA * @vol_1000mv_adc: ADC value corresponding to 1000 mV + * @calib_resist: the real resistance of coulomb counter chip in uOhm * @cap_table: capacity table with corresponding ocv + * @resist_table: resistance percent table with corresponding temperature */ struct sc27xx_fgu_data { struct regmap *regmap; @@ -103,15 +108,19 @@ struct sc27xx_fgu_data { int max_volt; int min_volt; int table_len; + int resist_table_len; int cur_1000ma_adc; int vol_1000mv_adc; + int calib_resist; struct power_supply_battery_ocv_table *cap_table; + struct power_supply_resistance_temp_table *resist_table; }; static int sc27xx_fgu_cap_to_clbcnt(struct sc27xx_fgu_data *data, int capacity); static void sc27xx_fgu_capacity_calibration(struct sc27xx_fgu_data *data, int cap, bool int_mode); static void sc27xx_fgu_adjust_cap(struct sc27xx_fgu_data *data, int cap); +static int sc27xx_fgu_get_temp(struct sc27xx_fgu_data *data, int *temp); static const char * const sc27xx_charger_supply_name[] = { "sc2731_charger", @@ -434,7 +443,7 @@ static int sc27xx_fgu_get_current(struct sc27xx_fgu_data *data, int *val) static int sc27xx_fgu_get_vbat_ocv(struct sc27xx_fgu_data *data, int *val) { - int vol, cur, ret; + int vol, cur, ret, temp, resistance; ret = sc27xx_fgu_get_vbat_vol(data, &vol); if (ret) @@ -444,8 +453,19 @@ static int sc27xx_fgu_get_vbat_ocv(struct sc27xx_fgu_data *data, int *val) if (ret) return ret; + resistance = data->internal_resist; + if (data->resist_table_len > 0) { + ret = sc27xx_fgu_get_temp(data, &temp); + if (ret) + return ret; + + resistance = power_supply_temp2resist_simple(data->resist_table, + data->resist_table_len, temp); + resistance = data->internal_resist * resistance / 100; + } + /* Return the battery OCV in micro volts. */ - *val = vol * 1000 - cur * data->internal_resist; + *val = vol * 1000 - cur * resistance; return 0; } @@ -884,7 +904,9 @@ static int sc27xx_fgu_calibration(struct sc27xx_fgu_data *data) */ cal_4200mv = (calib_data & 0x1ff) + 6963 - 4096 - 256; data->vol_1000mv_adc = DIV_ROUND_CLOSEST(cal_4200mv * 10, 42); - data->cur_1000ma_adc = data->vol_1000mv_adc * 4; + data->cur_1000ma_adc = + DIV_ROUND_CLOSEST(data->vol_1000mv_adc * 4 * data->calib_resist, + SC27XX_FGU_IDEAL_RESISTANCE); kfree(buf); return 0; @@ -929,6 +951,18 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data) if (!data->alarm_cap) data->alarm_cap += 1; + data->resist_table_len = info.resist_table_size; + if (data->resist_table_len > 0) { + data->resist_table = devm_kmemdup(data->dev, info.resist_table, + data->resist_table_len * + sizeof(struct power_supply_resistance_temp_table), + GFP_KERNEL); + if (!data->resist_table) { + power_supply_put_battery_info(data->battery, &info); + return -ENOMEM; + } + } + power_supply_put_battery_info(data->battery, &info); ret = sc27xx_fgu_calibration(data); @@ -1051,6 +1085,15 @@ static int sc27xx_fgu_probe(struct platform_device *pdev) return ret; } + ret = device_property_read_u32(&pdev->dev, + "sprd,calib-resistance-micro-ohms", + &data->calib_resist); + if (ret) { + dev_err(&pdev->dev, + "failed to get fgu calibration resistance\n"); + return ret; + } + data->channel = devm_iio_channel_get(dev, "bat-temp"); if (IS_ERR(data->channel)) { dev_err(dev, "failed to get IIO channel\n"); diff --git a/drivers/power/supply/ucs1002_power.c b/drivers/power/supply/ucs1002_power.c index 1b80ae479e7d..cdb9a23d825f 100644 --- a/drivers/power/supply/ucs1002_power.c +++ b/drivers/power/supply/ucs1002_power.c @@ -100,7 +100,9 @@ struct ucs1002_info { struct i2c_client *client; struct regmap *regmap; struct regulator_desc *regulator_descriptor; + struct regulator_dev *rdev; bool present; + bool output_disable; }; static enum power_supply_property ucs1002_props[] = { @@ -233,6 +235,11 @@ static int ucs1002_get_max_current(struct ucs1002_info *info, unsigned int reg; int ret; + if (info->output_disable) { + val->intval = 0; + return 0; + } + ret = regmap_read(info->regmap, UCS1002_REG_ILIMIT, ®); if (ret) return ret; @@ -247,6 +254,12 @@ static int ucs1002_set_max_current(struct ucs1002_info *info, u32 val) unsigned int reg; int ret, idx; + if (val == 0) { + info->output_disable = true; + regulator_disable_regmap(info->rdev); + return 0; + } + for (idx = 0; idx < ARRAY_SIZE(ucs1002_current_limit_uA); idx++) { if (val == ucs1002_current_limit_uA[idx]) break; @@ -270,6 +283,12 @@ static int ucs1002_set_max_current(struct ucs1002_info *info, u32 val) if (reg != idx) return -EINVAL; + info->output_disable = false; + + if (info->rdev && info->rdev->use_count && + !regulator_is_enabled_regmap(info->rdev)) + regulator_enable_regmap(info->rdev); + return 0; } @@ -470,9 +489,24 @@ static irqreturn_t ucs1002_alert_irq(int irq, void *data) return IRQ_HANDLED; } +static int ucs1002_regulator_enable(struct regulator_dev *rdev) +{ + struct ucs1002_info *info = rdev_get_drvdata(rdev); + + /* + * If the output is disabled due to 0 maximum current, just pretend the + * enable did work. The regulator will be enabled as soon as we get a + * a non-zero maximum current budget. + */ + if (info->output_disable) + return 0; + + return regulator_enable_regmap(rdev); +} + static const struct regulator_ops ucs1002_regulator_ops = { .is_enabled = regulator_is_enabled_regmap, - .enable = regulator_enable_regmap, + .enable = ucs1002_regulator_enable, .disable = regulator_disable_regmap, }; @@ -499,7 +533,6 @@ static int ucs1002_probe(struct i2c_client *client, }; struct regulator_config regulator_config = {}; int irq_a_det, irq_alert, ret; - struct regulator_dev *rdev; struct ucs1002_info *info; unsigned int regval; @@ -589,10 +622,11 @@ static int ucs1002_probe(struct i2c_client *client, regulator_config.dev = dev; regulator_config.of_node = dev->of_node; regulator_config.regmap = info->regmap; + regulator_config.driver_data = info; - rdev = devm_regulator_register(dev, info->regulator_descriptor, + info->rdev = devm_regulator_register(dev, info->regulator_descriptor, ®ulator_config); - ret = PTR_ERR_OR_ZERO(rdev); + ret = PTR_ERR_OR_ZERO(info->rdev); if (ret) { dev_err(dev, "Failed to register VBUS regulator: %d\n", ret); return ret; diff --git a/include/linux/power/max17042_battery.h b/include/linux/power/max17042_battery.h index 4badd5322949..d55c746ac56e 100644 --- a/include/linux/power/max17042_battery.h +++ b/include/linux/power/max17042_battery.h @@ -105,11 +105,56 @@ enum max17042_register { MAX17042_OCV = 0xEE, - MAX17042_OCVInternal = 0xFB, + MAX17042_OCVInternal = 0xFB, /* MAX17055 VFOCV */ MAX17042_VFSOC = 0xFF, }; +enum max17055_register { + MAX17055_QRes = 0x0C, + MAX17055_TTF = 0x20, + MAX17055_V_empty = 0x3A, + MAX17055_TIMER = 0x3E, + MAX17055_USER_MEM = 0x40, + MAX17055_RGAIN = 0x42, + + MAX17055_ConvgCfg = 0x49, + MAX17055_VFRemCap = 0x4A, + + MAX17055_STATUS2 = 0xB0, + MAX17055_POWER = 0xB1, + MAX17055_ID = 0xB2, + MAX17055_AvgPower = 0xB3, + MAX17055_IAlrtTh = 0xB4, + MAX17055_TTFCfg = 0xB5, + MAX17055_CVMixCap = 0xB6, + MAX17055_CVHalfTime = 0xB7, + MAX17055_CGTempCo = 0xB8, + MAX17055_Curve = 0xB9, + MAX17055_HibCfg = 0xBA, + MAX17055_Config2 = 0xBB, + MAX17055_VRipple = 0xBC, + MAX17055_RippleCfg = 0xBD, + MAX17055_TimerH = 0xBE, + + MAX17055_RSense = 0xD0, + MAX17055_ScOcvLim = 0xD1, + + MAX17055_SOCHold = 0xD3, + MAX17055_MaxPeakPwr = 0xD4, + MAX17055_SusPeakPwr = 0xD5, + MAX17055_PackResistance = 0xD6, + MAX17055_SysResistance = 0xD7, + MAX17055_MinSysV = 0xD8, + MAX17055_MPPCurrent = 0xD9, + MAX17055_SPPCurrent = 0xDA, + MAX17055_ModelCfg = 0xDB, + MAX17055_AtQResidual = 0xDC, + MAX17055_AtTTE = 0xDD, + MAX17055_AtAvSOC = 0xDE, + MAX17055_AtAvCap = 0xDF, +}; + /* Registers specific to max17047/50 */ enum max17047_register { MAX17047_QRTbl00 = 0x12, @@ -125,6 +170,7 @@ enum max170xx_chip_type { MAXIM_DEVICE_TYPE_MAX17042, MAXIM_DEVICE_TYPE_MAX17047, MAXIM_DEVICE_TYPE_MAX17050, + MAXIM_DEVICE_TYPE_MAX17055, MAXIM_DEVICE_TYPE_NUM }; diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 28413f737e7d..dcd5a71e6c67 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -325,6 +325,11 @@ struct power_supply_battery_ocv_table { int capacity; /* percent */ }; +struct power_supply_resistance_temp_table { + int temp; /* celsius */ + int resistance; /* internal resistance percent */ +}; + #define POWER_SUPPLY_OCV_TEMP_MAX 20 /* @@ -349,6 +354,8 @@ struct power_supply_battery_info { int ocv_temp[POWER_SUPPLY_OCV_TEMP_MAX];/* celsius */ struct power_supply_battery_ocv_table *ocv_table[POWER_SUPPLY_OCV_TEMP_MAX]; int ocv_table_size[POWER_SUPPLY_OCV_TEMP_MAX]; + struct power_supply_resistance_temp_table *resist_table; + int resist_table_size; }; extern struct atomic_notifier_head power_supply_notifier; @@ -381,6 +388,9 @@ power_supply_find_ocv2cap_table(struct power_supply_battery_info *info, int temp, int *table_len); extern int power_supply_batinfo_ocv2cap(struct power_supply_battery_info *info, int ocv, int temp); +extern int +power_supply_temp2resist_simple(struct power_supply_resistance_temp_table *table, + int table_len, int temp); extern void power_supply_changed(struct power_supply *psy); extern int power_supply_am_i_supplied(struct power_supply *psy); extern int power_supply_set_input_current_limit_from_supplier( |