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/linux/Documentation/devicetree/bindings/leds/backlight/
H A Dqcom-wled.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/qcom-wled.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bjorn Andersson <andersson@kernel.org>
11 - Kiran Gunda <quic_kgunda@quicinc.com>
21 - qcom,pm8941-wled
22 - qcom,pmi8950-wled
23 - qcom,pmi8994-wled
24 - qcom,pmi8998-wled
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/linux/Documentation/devicetree/bindings/sound/
H A Dcs35l35.txt5 - compatible : "cirrus,cs35l35"
7 - reg : the I2C address of the device for I2C
9 - VA-supply, VP-supply : power supplies for the device,
13 - interrupts : IRQ line info CS35L35.
14 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
17 - cirrus,boost-ind-nanohenry: Inductor value for boost converter. The value is
21 - reset-gpios : gpio used to reset the amplifier
23 - cirrus,stereo-config : Boolean to determine if there are 2 AMPs for a
26 - cirrus,audio-channel : Set Location of Audio Signal on Serial Port
30 - cirrus,advisory-channel : Set Location of Advisory Signal on Serial Port
[all …]
H A Dcs35l36.txt5 - compatible : "cirrus,cs35l36"
7 - reg : the I2C address of the device for I2C
9 - VA-supply, VP-supply : power supplies for the device,
13 - cirrus,boost-ctl-millivolt : Boost Voltage Value. Configures the boost
18 - cirrus,boost-peak-milliamp : Boost-converter peak current limit in mA.
19 Configures the peak current by monitoring the current through the boost FET.
24 - cirrus,boost-ind-nanohenry : Inductor estimation LBST reference value.
25 Seeds the digital boost converter's inductor estimation block with the initial
32 - cirrus,multi-amp-mode : Boolean to determine if there are more than
33 one amplifier in the system. If more than one it is best to Hi-Z the ASP
[all …]
H A Dcs35l34.txt5 - compatible : "cirrus,cs35l34"
7 - reg : the I2C address of the device for I2C.
9 - VA-supply, VP-supply : power supplies for the device,
13 - cirrus,boost-vtge-millivolt : Boost Voltage Value. Configures the boost
17 - cirrus,boost-nanohenry: Inductor value for boost converter. The value is
22 - reset-gpios: GPIO used to reset the amplifier.
24 - interrupts : IRQ line info CS35L34.
25 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
28 - cirrus,boost-peak-milliamp : Boost converter peak current limit in mA. The
32 - cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the
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/linux/Documentation/admin-guide/pm/
H A Dcpufreq.rst1 .. SPDX-License-Identifier: GPL-2.0
20 Operating Performance Points or P-states (in ACPI terminology). As a rule,
24 time (or the more power is drawn) by the CPU in the given P-state. Therefore
29 as possible and then there is no reason to use any P-states different from the
30 highest one (i.e. the highest-performance frequency/voltage configuration
38 put into different P-states.
41 capacity, so as to decide which P-states to put the CPUs into. Of course, since
64 information on the available P-states (or P-state ranges in some cases) and
65 access platform-specific hardware interfaces to change CPU P-states as requested
70 performance scaling algorithms for P-state selection can be represented in a
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H A Damd-pstate.rst1 .. SPDX-License-Identifier: GPL-2.0
5 ``amd-pstate`` CPU Performance Scaling Driver
16 ``amd-pstate`` is the AMD CPU performance scaling driver that introduces a
20 than legacy ACPI hardware P-States. Current AMD CPU/APU platforms are using
21 the ACPI P-states driver to manage CPU frequency and clocks with switching
22 only in 3 P-states. CPPC replaces the ACPI P-states controls and allows a
23 flexible, low-latency interface for the Linux kernel to directly
26 ``amd-pstate`` leverages the Linux kernel governors such as ``schedutil``,
30 Volume 2: System Programming [1]_). Currently, ``amd-pstate`` supports basic
40 continuous, abstract, and unit-less performance value in a scale that is
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/linux/Documentation/hwmon/
H A Dlm93.rst10 Addresses scanned: I2C 0x2c-0x2e
18 Addresses scanned: I2C 0x2c-0x2e
24 - Mark M. Hoffman <mhoffman@lightlink.com>
25 - Ported to 2.6 by Eric J. Bowersox <ericb@aspsys.com>
26 - Adapted to 2.6.20 by Carsten Emde <ce@osadl.org>
27 - Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>
30 -----------------
33 Set to non-zero to force some initializations (default is 0).
38 Configures in7 and in8 limit type, where 0 means absolute and non-zero
54 --------------------
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/linux/Documentation/ABI/testing/
H A Dsysfs-platform-asus-wmi6 Change CPU clock configuration (write-only).
9 * 0 -> Super Performance Mode
10 * 1 -> High Performance Mode
11 * 2 -> Power Saving Mode
46 Fan boost mode:
47 * 0 - normal,
48 * 1 - overboost,
49 * 2 - silent
57 * 0 - default,
58 * 1 - overboost,
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H A Dsysfs-bus-iio-adc-mcp35643 Contact: linux-iio@vger.kernel.org
5 This attribute is used to set the gain of the biasing current
6 circuit of the Delta-Sigma modulator. The different BOOST
12 Contact: linux-iio@vger.kernel.org
15 the current biasing circuit of the Delta-Sigma modulator.
19 Contact: linux-iio@vger.kernel.org
22 auto-zeroing algorithm (the input multiplexer and the ADC
26 input as VIN+/VIN-, one with VIN+/VIN- inverted. In this case the
30 ultra-low offset without any digital calibration. The resulting
39 Contact: linux-iio@vger.kernel.org
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/linux/arch/arm/boot/dts/qcom/
H A Dqcom-msm8974-sony-xperia-rhine.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 #include "qcom-msm8974.dtsi"
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
17 stdout-path = "serial0:115200n8";
20 gpio-keys {
21 compatible = "gpio-keys";
23 pinctrl-names = "default";
24 pinctrl-0 = <&gpio_keys_pin_a>;
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H A Dqcom-msm8974pro-fairphone-fp2.dts1 // SPDX-License-Identifier: GPL-2.0
2 #include "qcom-msm8974pro.dtsi"
5 #include <dt-bindings/input/input.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
12 chassis-type = "handset";
21 stdout-path = "serial0:115200n8";
24 gpio-keys {
25 compatible = "gpio-keys";
27 pinctrl-names = "default";
[all …]
/linux/Documentation/devicetree/bindings/power/supply/
H A Dqcom,pm8941-charger.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/qcom,pm8941-charger.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm Switch-Mode Battery Charger and Boost
10 - Sebastian Reichel <sre@kernel.org>
15 - qcom,pm8226-charger
16 - qcom,pm8941-charger
23 - description: charge done
24 - description: charge fast mode
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/linux/include/linux/power/
H A Dbq2415x_charger.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright (C) 2011-2013 Pali Rohár <pali@kernel.org>
14 * value is -1 then default chip value (specified in datasheet) will be
18 * termination current. If it is less or equal to zero, configuring charge
19 * and termination current will not be possible.
23 * POWER_SUPPLY_PROP_CURRENT_MAX when current changed.
26 /* Supported modes with maximal current limit */
32 BQ2415X_MODE_BOOST, /* boost mode (charging disabled) */
/linux/kernel/rcu/
H A Dtree_plugin.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Read-Copy Update mechanism for mutual exclusion (tree-based version)
4 * Internal non-public definitions that provide either classic
23 * non-preemptible reads are also safe. NOCB kthreads and in rcu_rdp_is_offloaded()
30 lockdep_is_held(&rdp->nocb_lock) || in rcu_rdp_is_offloaded()
38 return rcu_segcblist_is_offloaded(&rdp->cblist); in rcu_rdp_is_offloaded()
51 pr_info("\tCONFIG_RCU_FANOUT set to non-defaul in rcu_bootup_announce_oddness()
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/linux/drivers/power/supply/
H A Daxp288_charger.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * axp288_charger.c - X-power AXP288 PMIC Charger driver
5 * Copyright (C) 2016-2017 Hans de Goede <hdegoede@redhat.com>
160 else if (cc > info->max_cc) in axp288_charger_set_cc()
161 cc = info->max_cc; in axp288_charger_set_cc()
163 reg_val = (cc - CHRG_CCCV_CC_OFFSET) / CHRG_CCCV_CC_LSB_RES; in axp288_charger_set_cc()
167 ret = regmap_update_bits(info->regmap, in axp288_charger_set_cc()
171 info->cc = cc; in axp288_charger_set_cc()
197 ret = regmap_update_bits(info->regmap, in axp288_charger_set_cv()
202 info->cv = cv; in axp288_charger_set_cv()
[all …]
/linux/drivers/i2c/busses/
H A Di2c-cht-wc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * Copyright (C) 2011 - 2014 Intel Corporation. All rights reserved.
62 mutex_lock(&adap->adap_lock); in cht_wc_i2c_adap_thread_handler()
65 ret = regmap_read(adap->regmap, CHT_WC_EXTCHGRIRQ, &reg); in cht_wc_i2c_adap_thread_handler()
67 dev_err(&adap->adapter.dev, "Error reading extchgrirq reg\n"); in cht_wc_i2c_adap_thread_handler()
68 mutex_unlock(&adap->adap_lock); in cht_wc_i2c_adap_thread_handler()
72 reg &= ~adap->irq_mask; in cht_wc_i2c_adap_thread_handler()
75 ret = regmap_read(adap->regmap, CHT_WC_I2C_RDDATA, &adap->read_data); in cht_wc_i2c_adap_thread_handler()
77 adap->io_error = true; in cht_wc_i2c_adap_thread_handler()
81 * handling the previous ones our irq will re-trigger when we're done. in cht_wc_i2c_adap_thread_handler()
[all …]
/linux/kernel/sched/
H A Dcpufreq_schedutil.c1 // SPDX-License-Identifier: GPL-2.0
3 * CPUFreq governor based on scheduler-provided CPU utilization data.
54 /* The field below is for single-CPU policies only: */
69 * Since cpufreq_update_util() is called with rq->lock held for in sugov_should_update_freq()
70 * the @target_cpu, our per-CPU data is fully serialized. in sugov_should_update_freq()
72 * However, drivers cannot in general deal with cross-CPU in sugov_should_update_freq()
83 if (!cpufreq_this_cpu_can_update(sg_policy->policy)) in sugov_should_update_freq()
86 if (unlikely(READ_ONCE(sg_policy->limits_changed))) { in sugov_should_update_freq()
87 WRITE_ONCE(sg_policy->limits_changed, false); in sugov_should_update_freq()
88 sg_policy->need_freq_update = true; in sugov_should_update_freq()
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/linux/sound/soc/codecs/
H A Dmax98926.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * max98926.c -- ALSA SoC MAX98926 driver
4 * Copyright 2013-15 Maxim Integrated Products
24 "Current", "Voltage",
75 { 0x35, 0x01 }, /* Boost Converter */
79 { 0x3A, 0x00 }, /* Boost Limiter */
159 {"PDM CH1 Source", "Current", "DAI_OUT"},
161 {"PDM CH0 Source", "Current", "DAI_OUT"},
205 static DECLARE_TLV_DB_SCALE(max98926_spk_tlv, -600, 100, 0);
222 (1<<MAX98926_SPK_GAIN_WIDTH)-1, 0,
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H A Dwm8940.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8940.c -- WM8940 ALSA Soc Audio driver
14 * No means to obtain current gain if alc enabled.
128 { 0x18, 0x0032 }, /* DAC Limit Control 1 */
129 { 0x19, 0x0000 }, /* DAC Limit Control 2 */
145 { 0x2f, 0x0002 }, /* ADC Boost Control */
155 static const char *wm8940_companding[] = { "Off", "NC", "u-law", "A-law" };
173 static DECLARE_TLV_DB_SCALE(wm8940_spk_vol_tlv, -5700, 100, 1);
174 static DECLARE_TLV_DB_SCALE(wm8940_att_tlv, -1000, 1000, 0);
175 static DECLARE_TLV_DB_SCALE(wm8940_pga_vol_tlv, -1200, 75, 0);
[all …]
/linux/Documentation/cpu-freq/
H A Dcpu-drivers.rst1 .. SPDX-License-Identifier: GPL-2.0
10 - Dominik Brodowski <linux@brodo.de>
11 - Rafael J. Wysocki <rafael.j.wysocki@intel.com>
12 - Viresh Kumar <viresh.kumar@linaro.org>
18 1.2 Per-CPU Initialization
31 So, you just got a brand-new CPU / chipset with datasheets and want to
37 ------------------
46 .name - The name of this driver.
48 .init - A pointer to the per-policy initialization function.
50 .verify - A pointer to a "verification" function.
[all …]
/linux/include/linux/mfd/
H A Drt5033-private.h1 /* SPDX-License-Identifier: GPL-2.0-only */
116 /* RT5033 charger property - model, manufacturer */
121 * While RT5033 charger can limit the fast-charge current (as in CHGCTRL1
122 * register), AICR mode limits the input current. For example, the AIRC 100
123 * mode limits the input current to 100 mA.
158 * and boost mode.
177 /* RT5033 charger pre-charge current limits (as in CHGCTRL4 register), uA */
183 /* RT5033 charger fast-charge current (as in CHGCTRL5 register), uA */
190 * RT5033 charger const-charge end of charger current (
200 * RT5033 charger pre-charge threshold volt limits
/linux/arch/arm64/boot/dts/allwinner/
H A Dsun50i-h700-anbernic-rg35xx-2024.dts1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
6 /dts-v1/;
8 #include "sun50i-h616.dtsi"
9 #include "sun50i-h616-cpu-opp.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/input/linux-event-codes.h>
12 #include <dt-bindings/interrupt-controller/arm-gic.h>
13 #include <dt-bindings/leds/common.h>
17 chassis-type = "handset";
18 compatible = "anbernic,rg35xx-2024", "allwinner,sun50i-h700";
[all …]
/linux/drivers/regulator/
H A Dstpmic1_regulator.c1 // SPDX-License-Identifier: GPL-2.0
15 #include <dt-bindings/mfd/st,stpmic1.h>
18 * struct stpmic1_regulator_cfg - this structure is used as driver data
434 .desc = REG_BOOST(BOOST, boost),
467 regmap_read(regmap, rdev->desc->enable_reg, &value); in stpmic1_get_mode()
488 return -EINVAL; in stpmic1_set_mode()
491 return regmap_update_bits(regmap, rdev->desc->enable_reg, in stpmic1_set_mode()
508 * Also, I don't know if limit can be configured or if we support in stpmic1_set_icc()
513 return -EINVAL; in stpmic1_set_icc()
515 /* enable switch off in case of over current */ in stpmic1_set_icc()
[all …]
/linux/Documentation/scheduler/
H A Dsched-util-clamp.rst1 .. SPDX-License-Identifier: GPL-2.0
57 foreground, top-app, etc. Util clamp can be used to constrain how much
60 the ones belonging to the currently active app (top-app group). Beside this
65 1. The big cores are free to run top-app tasks immediately. top-app
106 Note that by design RT tasks don't have per-task PELT signal and must always
114 See :ref:`section 3.4 <uclamp-default-values>` for default values and
115 :ref:`3.4.1 <sched-util-clamp-min-rt-default>` on how to change RT tasks
150 task on the rq to only a subset of tasks on the top-most bucket.
156 As tasks are enqueued and dequeued, we keep track of the current effective
157 uclamp value of the rq. See :ref:`section 2.1 <uclamp-buckets>` for details on
[all …]
/linux/drivers/video/backlight/
H A Dqcom-wled.c1 // SPDX-License-Identifier: GPL-2.0-only
61 /* WLED3 specific per-'string' registers below */
93 /* WLED4 specific per-'string' registers below */
140 /* WLED5 specific per-'string' registers below */
238 for (i = 0; i < wled->cfg.num_strings; ++i) { in wled3_set_brightness()
239 rc = regmap_bulk_write(wled->regmap, wled->ctrl_addr + in wled3_set_brightness()
240 WLED3_SINK_REG_BRIGHT(wled->cfg.enabled_strings[i]), in wled3_set_brightness()
252 u16 low_limit = wled->max_brightness * 4 / 1000; in wled4_set_brightness()
255 /* WLED4's lower limit of operation is 0.4% */ in wled4_set_brightness()
261 for (i = 0; i < wled->cfg.num_strings; ++i) { in wled4_set_brightness()
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