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/openbmc/linux/drivers/acpi/
H A Dsbs.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * sbs.c - ACPI Smart Battery System Driver ($Revision: 2.0 $)
6 * Copyright (c) 2005-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com>
24 #include <acpi/battery.h>
28 #define ACPI_SBS_CLASS "sbs"
30 #define ACPI_SBS_DEVICE_NAME "Smart Battery System"
38 MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
57 struct acpi_sbs *sbs; member
89 struct acpi_battery battery[MAX_SBS_BAT]; member
99 static int acpi_battery_get_state(struct acpi_battery *battery);
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/openbmc/linux/Documentation/devicetree/bindings/power/supply/
H A Dsbs,sbs-battery.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/sbs,sbs-battery.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SBS compliant battery
10 - Sebastian Reichel <sre@kernel.org>
13 Battery compatible with the smart battery system specifications
16 - $ref: power-supply.yaml#
21 - items:
22 - enum:
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H A Dsbs,sbs-manager.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/sbs,sbs-manager.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SBS compliant manager
10 - Sebastian Reichel <sre@kernel.org>
13 - $ref: power-supply.yaml#
18 - items:
19 - enum:
20 - lltc,ltc1760
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H A Dsbs,sbs-charger.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/sbs,sbs-charger.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SBS compliant charger
10 - Sebastian Reichel <sre@kernel.org>
13 Charger compatible with the smart battery system specifications
16 - $ref: power-supply.yaml#
21 - items:
22 - enum:
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/openbmc/u-boot/arch/arm/dts/
H A Dcros-ec-sbs.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * Smart battery dts fragment for devices that use cros-ec-sbs
9 battery: sbs-battery@b { label
10 compatible = "sbs,sbs-battery";
12 sbs,i2c-retry-count = <2>;
13 sbs,poll-retry-count = <1>;
H A Dexynos5800-peach-pi.dts1 // SPDX-License-Identifier: GPL-2.0+
3 * SAMSUNG/GOOGLE Peach-Pit board device tree source
9 /dts-v1/;
14 cpu-model = "Exynos5800";
16 compatible = "google,pit-rev#", "google,pit",
20 google,bad-wake-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>;
21 hwid = "PIT TEST A-A 7848";
22 lazy-init = <1>;
33 compatible = "pwm-backlight";
35 brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
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H A Dexynos5420-peach-pit.dts1 // SPDX-License-Identifier: GPL-2.0+
3 * SAMSUNG/GOOGLE Peach-Pit board device tree source
9 /dts-v1/;
11 #include <dt-bindings/clock/maxim,max77802.h>
12 #include <dt-bindings/regulator/maxim,max77802.h>
17 compatible = "google,pit-rev#", "google,pit",
21 google,bad-wake-gpios = <&gpx0 6 GPIO_ACTIVE_HIGH>;
22 hwid = "PIT TEST A-A 7848";
23 lazy-init = <1>;
34 compatible = "pwm-backlight";
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H A Dexynos5250-snow.dts12 /dts-v1/;
13 #include <dt-bindings/gpio/gpio.h>
14 #include <dt-bindings/interrupt-controller/irq.h>
15 #include <dt-bindings/input/input.h>
51 stdout-path = "serial3:115200n8";
59 samsung,bl1-offset = <0x1400>;
60 samsung,bl2-offset = <0x3400>;
61 u-boot-memory = "/memory";
62 u-boot-offset = <0x3e00000 0x100000>;
67 #address-cells = <1>;
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H A Dtegra124-nyan.dtsi1 #include <dt-bindings/input/input.h>
19 vdd-supply = <&vdd_3v3_hdmi>;
20 pll-supply = <&vdd_hdmi_pll>;
21 hdmi-supply = <&vdd_5v0_hdmi>;
23 nvidia,ddc-i2c-bus = <&hdmi_ddc>;
24 nvidia,hpd-gpio =
36 vdd-supply = <&vdd_3v3_panel>;
52 clock-frequency = <100000>;
54 acodec: audio-codec@10 {
57 interrupt-parent = <&gpio>;
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/openbmc/linux/arch/arm/boot/dts/
H A Dcros-ec-sbs.dtsi2 * Smart battery dts fragment for devices that use cros-ec-sbs
6 * This file is dual-licensed: you can use it either under the terms
46 battery: sbs-battery@b { label
47 compatible = "sbs,sbs-battery";
49 sbs,i2c-retry-count = <2>;
50 sbs,poll-retry-count = <1>;
/openbmc/linux/Documentation/devicetree/bindings/i2c/
H A Dgoogle,cros-ec-i2c-tunnel.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $id: http://devicetree.org/schemas/i2c/google,cros-ec-i2c-tunnel.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: I2C bus that tunnels through the ChromeOS EC (cros-ec)
11 - Doug Anderson <dianders@chromium.org>
12 - Benson Leung <bleung@chromium.org>
17 other side of the EC (like a battery and PMIC). To get access to
20 The node for this device should be under a cros-ec node like
21 google,cros-ec-spi or google,cros-ec-i2c.
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H A Di2c-arb-gpio-challenge.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-arb-gpio-challenge.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
10 - Doug Anderson <dianders@chromium.org>
11 - Peter Rosin <peda@axentia.se>
18 standard I2C multi-master rules. Using GPIOs is generally useful in the case
30 others can see. These are all active low with pull-ups enabled. We'll
51 const: i2c-arb-gpio-challenge
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/openbmc/linux/drivers/power/supply/
H A Dsbs-battery.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Gas Gauge driver for SBS Compliant Batteries
10 #include <linux/devm-helpers.h>
20 #include <linux/power/sbs-battery.h>
66 /* Battery Mode defines */
79 /* battery status value bits */
102 SBS_DATA(-1, 0x03, 0, 65535),
108 SBS_DATA(POWER_SUPPLY_PROP_CURRENT_NOW, 0x0A, -32768, 32767),
110 SBS_DATA(POWER_SUPPLY_PROP_CURRENT_AVG, 0x0B, -32768, 32767),
228 return chip->strings[i]; in sbs_get_string_buf()
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
36 battery class devices.
39 tristate "Generic battery support using IIO"
42 Say Y here to enable support for the generic battery driver
51 which include a battery charger and a boost converter.
54 tristate "MAX8925 battery charger support"
57 Say Y here to enable support for the battery charger in the Maxim
61 tristate "WM831X backup battery charger support"
64 Say Y here to enable support for the backup battery charger
87 tristate "Marvell 88PM860x battery driver"
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H A DMakefile1 # SPDX-License-Identifier: GPL-2.0
2 subdir-ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
4 power_supply-y := power_supply_core.o
5 power_supply-$(CONFIG_SYSFS) += power_supply_sysfs.o
6 power_supply-$(CONFIG_LEDS_TRIGGERS) += power_supply_leds.o
8 obj-$(CONFIG_POWER_SUPPLY) += power_supply.o
9 obj-$(CONFIG_POWER_SUPPLY_HWMON) += power_supply_hwmon.o
10 obj-$(CONFIG_GENERIC_ADC_BATTERY) += generic-adc-battery.o
12 obj-$(CONFIG_APM_POWER) += apm_power.o
13 obj-$(CONFIG_AXP20X_POWER) += axp20x_usb_power.o
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H A Dsbs-charger.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * This adds support for sbs-charger compilant chips as defined here:
6 * http://sbs-forum.org/specs/sbc110.pdf
8 * Implemetation based on sbs-battery.c
21 #include <linux/devm-helpers.h>
50 reg = chip->last_state; in sbs_get_property()
54 val->intval = !!(reg & SBS_CHARGER_STATUS_BATTERY_PRESENT); in sbs_get_property()
58 val->intval = !!(reg & SBS_CHARGER_STATUS_AC_PRESENT); in sbs_get_property()
62 val->intval = POWER_SUPPLY_STATUS_UNKNOWN; in sbs_get_property()
65 val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; in sbs_get_property()
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H A Dsbs-manager.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Driver for SBS compliant Smart Battery System Managers
10 * Datasheet SBSM: http://sbs-forum.org/specs/sbsm100b.pdf
13 * Karl-Heinz Schneider <karl-heinz@schneider-inet.de>
19 #include <linux/i2c-mux.h>
62 for (retries = SBSM_RETRY_CNT; retries > 0; retries--) { in sbsm_read_word()
69 dev_err(&client->dev, "failed to read register 0x%02x\n", in sbsm_read_word()
80 for (retries = SBSM_RETRY_CNT; retries > 0; retries--) { in sbsm_write_word()
86 dev_err(&client->dev, "failed to write to register 0x%02x\n", in sbsm_write_word()
101 regval = sbsm_read_word(data->client, SBSM_CMD_BATSYSSTATECONT); in sbsm_get_property()
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H A Dacer_a500_battery.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Battery driver for Acer Iconia Tab A500.
5 * Copyright 2020 GRATE-driver project.
8 * Based on NVIDIA Gas Gauge driver for SBS Compliant Batteries.
68 err = regmap_read(bat->regmap, ec_data[REG_CAPACITY].reg, &capacity); in a500_battery_update_capacity()
75 if (bat->capacity != capacity) { in a500_battery_update_capacity()
76 bat->capacity = capacity; in a500_battery_update_capacity()
85 if (bat->capacity < 100) { in a500_battery_get_status()
86 if (power_supply_am_i_supplied(bat->psy)) in a500_battery_get_status()
106 val->intval *= base_unit_conversion; in a500_battery_unit_adjustment()
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/openbmc/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6dl-b1x5pv2.dtsi1 // SPDX-License-Identifier: GPL-2.0 OR MIT
6 // Copyright 2018-2021 General Electric Company
7 // Copyright 2018-2021 Collabora
9 #include <dt-bindings/input/input.h>
10 #include "imx6dl-qmx6.dtsi"
14 stdout-path = &uart3;
20 operating-points = <
25 fsl,soc-operating-points = <
26 /* ARM kHz SOC-PU uV */
33 operating-points = <
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H A Dimx6q-evi.dts4 * This file is dual-licensed: you can use it either under the terms
44 /dts-v1/;
46 #include <dt-bindings/gpio/gpio.h>
47 #include <dt-bindings/interrupt-controller/irq.h>
51 compatible = "uniwest,imx6q-evi", "fsl,imx6q";
58 reg_usbh1_vbus: regulator-usbhubreset {
59 compatible = "regulator-fixed";
60 regulator-name = "usbh1_vbus";
61 regulator-min-microvolt = <5000000>;
62 regulator-max-microvolt = <5000000>;
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/openbmc/linux/arch/arm/boot/dts/samsung/
H A Dexynos5250-snow-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/maxim,max77686.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/sound/samsung-i2s.h>
30 stdout-path = "serial3:115200n8";
33 gpio-keys {
34 compatible = "gpio-keys";
35 pinctrl-names = "default";
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H A Dexynos5420-peach-pit.dts1 // SPDX-License-Identifier: GPL-2.0
8 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/clock/maxim,max77802.h>
13 #include <dt-bindings/regulator/maxim,max77802.h>
14 #include <dt-bindings/sound/samsung-i2s.h>
16 #include "exynos5420-cpus.dtsi"
21 compatible = "google,pit-rev16",
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H A Dexynos5800-peach-pi.dts1 // SPDX-License-Identifier: GPL-2.0
8 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/clock/maxim,max77802.h>
13 #include <dt-bindings/regulator/maxim,max77802.h>
14 #include <dt-bindings/sound/samsung-i2s.h>
16 #include "exynos5420-cpus.dtsi"
21 compatible = "google,pi-rev16",
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/openbmc/linux/arch/arm/boot/dts/nvidia/
H A Dtegra124-nyan.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 #include <dt-bindings/input/input.h>
3 #include <dt-bindings/thermal/thermal.h>
14 stdout-path = "serial0:115200n8";
20 * missing a unit-address. However, the bootloader on these Chromebook
22 * Adding the unit-address causes the bootloader to create a /memory
34 /delete-node/ memory@80000000;
40 vdd-supply = <&vdd_3v3_hdmi>;
41 pll-supply = <&vdd_hdmi_pll>;
42 hdmi-supply = <&vdd_5v0_hdmi>;
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/openbmc/linux/arch/arm64/boot/dts/mediatek/
H A Dmt8173-elm.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
6 #include <dt-bindings/input/input.h>
7 #include <dt-bindings/input/linux-event-codes.h>
8 #include <dt-bindings/regulator/dlg,da9211-regulator.h>
9 #include <dt-bindings/gpio/gpio.h>
25 compatible = "pwm-backlight";
27 power-supply = <&bl_fixed_reg>;
28 enable-gpios = <&pio 95 GPIO_ACTIVE_HIGH>;
30 pinctrl-names = "default";
31 pinctrl-0 = <&panel_backlight_en_pins>;
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