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/linux/Documentation/devicetree/bindings/input/
H A Dgpio-keys.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/input/gpio-keys.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rob Herring <robh@kernel.org>
15 - gpio-keys
16 - gpio-keys-polled
23 poll-interval: true
26 …"^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switc…
35 - items:
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H A Dsamsung,s3c6410-keypad.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/input/samsung,s3c6410-keypad.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 Samsung SoC Keypad controller is used to interface a SoC with a matrix-type
12 A key can be placed at each intersection of a unique row and a unique column.
13 The keypad controller can sense a key-press and key-release and report the
17 - Krzysztof Kozlowski <krzk@kernel.org>
22 - samsung,s3c6410-keypad
23 - samsung,s5pv210-keypad
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H A Dmicrochip,qt1050.txt1 Microchip AT42QT1050 Five-channel Touch Sensor IC
11 - compatible: Must be "microchip,qt1050"
12 - reg: The I2C address of the device
13 - interrupts: The sink for the touchpad's IRQ output,
14 see ../interrupt-controller/interrupts.txt
17 - wakeup-source: touch keys can be used as a wakeup source
19 Each button (key) is represented as a sub-node:
21 Each not specified key or key with linux,code set to KEY_RESERVED gets disabled
25 - linux,code: Keycode to emit.
26 - reg: The key number. Valid values: 0, 1, 2, 3, 4.
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H A Dnvidia,tegra20-kbc.txt2 The key controller has maximum 24 pins to make matrix keypad. Any pin
7 - compatible: "nvidia,tegra20-kbc"
8 - reg: Register base address of KBC.
9 - interrupts: Interrupt number for the KBC.
10 - nvidia,kbc-row-pins: The KBC pins which are configured as row. This is an
12 - nvidia,kbc-col-pins: The KBC pins which are configured as column. This is an
14 - linux,keymap: The keymap for keys as described in the binding document
15 devicetree/bindings/input/matrix-keymap.txt.
16 - clocks: Must contain one entry, for the module clock.
17 See ../clocks/clock-bindings.txt for details.
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H A Dmediatek,mt6779-keypad.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/mediatek,mt6779-keypad.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Mattijs Korpershoek <mkorpershoek@kernel.org>
13 - $ref: /schemas/input/matrix-keymap.yaml#
16 Mediatek's Keypad controller is used to interface a SoC with a matrix-type
18 A key can be placed at each intersection of a unique row and a unique column.
19 The keypad controller can sense a key-press and key-release and report the
25 - const: mediatek,mt6779-keypad
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/linux/kernel/sched/
H A Dwait.c1 // SPDX-License-Identifier: GPL-2.0-only
9 …_init_waitqueue_head(struct wait_queue_head *wq_head, const char *name, struct lock_class_key *key) in __init_waitqueue_head() argument
11 spin_lock_init(&wq_head->lock); in __init_waitqueue_head()
12 lockdep_set_class_and_name(&wq_head->lock, key, name); in __init_waitqueue_head()
13 INIT_LIST_HEAD(&wq_head->head); in __init_waitqueue_head()
22 wq_entry->flags &= ~WQ_FLAG_EXCLUSIVE; in add_wait_queue()
23 spin_lock_irqsave(&wq_head->lock, flags); in add_wait_queue()
25 spin_unlock_irqrestore(&wq_head->lock, flags); in add_wait_queue()
33 wq_entry->flags |= WQ_FLAG_EXCLUSIVE; in add_wait_queue_exclusive()
34 spin_lock_irqsave(&wq_head->lock, flags); in add_wait_queue_exclusive()
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/linux/kernel/futex/
H A Drequeue.c1 // SPDX-License-Identifier: GPL-2.0-or-later
26 * Q_REQUEUE_PI_NONE -> Q_REQUEUE_PI_IGNORE
27 * Q_REQUEUE_PI_IN_PROGRESS -> Q_REQUEUE_PI_WAIT
30 * Q_REQUEUE_PI_NONE -> Q_REQUEUE_PI_INPROGRESS
31 * Q_REQUEUE_PI_IN_PROGRESS -> Q_REQUEUE_PI_DONE/LOCKED
32 * Q_REQUEUE_PI_IN_PROGRESS -> Q_REQUEUE_PI_NONE (requeue failed)
33 * Q_REQUEUE_PI_WAIT -> Q_REQUEUE_PI_DONE/LOCKED
34 * Q_REQUEUE_PI_WAIT -> Q_REQUEUE_PI_IGNORE (requeue failed)
40 * The waiter side signals early wakeup to the requeue side either through
44 * which means the wakeup is interleaving with a requeue in progress it has
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H A Dwaitwake.c1 // SPDX-License-Identifier: GPL-2.0-or-later
64 * smp_mb(); (A) <-- paired with -.
73 * `--
159 union futex_key key = FUTEX_KEY_INIT; futex_wake() local
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/linux/arch/arm64/boot/dts/exynos/
H A Dexynosautov9-sadk.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/input/input.h>
16 compatible = "samsung,exynosautov9-sadk", "samsung,exynosautov9";
18 #address-cells = <2>;
19 #size-cells = <2>;
26 stdout-path = &serial_0;
36 gpio-keys {
37 compatible = "gpio-keys";
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H A Dexynosautov920-sadk.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
11 #include "exynos-pinctrl.h"
12 #include <dt-bindings/gpio/gpio.h>
13 #include <dt-bindings/input/input.h>
17 compatible = "samsung,exynosautov920-sadk", "samsung,exynosautov920";
19 #address-cells = <2>;
20 #size-cells = <2>;
27 stdout-path = &serial_0;
30 gpio-keys {
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H A Dexynos8895-dreamlte.dts1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3 * Samsung Galaxy S8 (dreamlte/SM-G950F) device tree source
8 /dts-v1/;
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/soc/samsung,exynos-usi.h>
16 model = "Samsung Galaxy S8 (SM-G950F)";
18 chassis-type = "handset";
25 #address-cells = <2>;
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/linux/drivers/net/wireless/broadcom/brcm80211/brcmfmac/
H A Dfwil_types.h1 // SPDX-License-Identifier: ISC
70 /* primary (ie tx) key */
79 #define BRCMF_OBSS_COEX_AUTO (-1)
84 /* Wakeup on Magic packet: */
86 /* Wakeup on Netpattern */
88 /* Wakeup on loss-of-link due to Disassoc/Deauth: */
90 /* Wakeup on retrograde TSF: */
92 /* Wakeup on loss of beacon: */
94 /* Wakeup after test: */
96 /* Wakeup after PTK refresh: */
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6q-var-dt6customboard.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Support for Variscite DART-MX6 Carrier-board
9 /dts-v1/;
12 #include "imx6qdl-var-dart.dtsi"
13 #include <dt-bindings/input/linux-event-codes.h>
16 model = "Variscite DART-MX6 Carrier-board";
20 compatible = "pwm-backlight";
22 brightness-levels = <0 4 8 16 32 64 128 248>;
23 default-brightness-level = <7>;
27 gpio-keys {
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/linux/arch/arm/boot/dts/renesas/
H A Dr8a7793-gose.dts1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2014-2015 Renesas Electronics Corporation
9 * SSI-AK4643
36 /dts-v1/;
38 #include <dt-bindings/gpio/gpio.h>
39 #include <dt-bindings/input/input.h>
59 stdout-path = "serial0:115200n8";
68 compatible = "gpio-keys";
70 pinctrl-0 = <&keyboard_pins>;
71 pinctrl-names = "default";
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H A Dr8a7791-koelsch.dts1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2013-2014 Renesas Solutions Corp.
11 * SSI-AK4643
38 /dts-v1/;
40 #include <dt-bindings/gpio/gpio.h>
41 #include <dt-bindings/input/input.h>
63 stdout-path = "serial0:115200n8";
77 compatible = "gpio-keys";
79 pinctrl-0 = <&keyboard_pins>;
80 pinctrl-names = "default";
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H A Dr8a7792-blanche.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/input/input.h>
25 stdout-path = "serial0:115200n8";
33 d1_8v: regulator-1v8 {
34 compatible = "regulator-fixed";
35 regulator-name = "D1.8V";
36 regulator-min-microvolt = <1800000>;
37 regulator-max-microvolt = <1800000>;
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H A Dr8a7794-silk.dts1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2014-2015 Renesas Solutions Corp.
7 * Copyright (C) 2014-2015 Cogent Embedded, Inc.
11 * SSI-AK4643
13 * SW1: 2-1: AK4643
14 * 2-3: ADV7511
21 /dts-v1/;
23 #include <dt-bindings/gpio/gpio.h>
24 #include <dt-bindings/input/input.h>
40 stdout-path = "serial0:115200n8";
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/linux/arch/arm64/boot/dts/renesas/
H A Drenesas-smarc2.dtsi1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 * Device Tree Source for the RZ SMARC Carrier-II Board.
13 * 0 - SMARC SDIO signal is connected to uSD1
14 * 1 - SMARC SDIO signal is connected to M.2 Key E connector
20 * 0 - Connect to GPIO8 PMOD (default)
21 * 1 - Connect to CAN0 transceiver STB pin
24 * 0 - Connect to GPIO9 PMOD (default)
25 * 1 - Connect to CAN1 transceiver STB pin
32 model = "Renesas RZ SMARC Carrier-II Board";
33 compatible = "renesas,smarc2-evk";
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H A Drzg3s-smarc.dtsi1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 * Device Tree Source for the RZ SMARC Carrier-II Board.
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
23 stdout-path = "serial3:115200n8";
27 compatible = "gpio-keys";
29 key-1 {
30 interrupts-extended = <&pinctrl RZG2L_GPIO(18, 0) IRQ_TYPE_EDGE_FALLING>;
33 wakeup-source;
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/linux/drivers/input/keyboard/
H A Dmt6779-keypad.c1 // SPDX-License-Identifier: GPL-2.0
16 #define MTK_KPD_NAME "mt6779-keypad"
36 void (*calc_row_col)(unsigned int key,
51 const unsigned short *keycode = keypad->input_dev->keycode; in mt6779_keypad_irq_handler()
54 unsigned int bit_nr, key; in mt6779_keypad_irq_handler() local
57 unsigned int row_shift = get_count_order(keypad->n_cols); in mt6779_keypad_irq_handler()
60 regmap_bulk_read(keypad->regmap, MTK_KPD_MEM, in mt6779_keypad_irq_handler()
63 bitmap_xor(change, new_state, keypad->keymap_state, MTK_KPD_NUM_BITS); in mt6779_keypad_irq_handler()
68 * indicate key status. in mt6779_keypad_irq_handler()
73 key = bit_nr / 32 * 16 + bit_nr % 32; in mt6779_keypad_irq_handler()
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H A Dpmic8xxx-keypad.c1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
69 * '0' for key press
70 * '1' for key release
78 * struct pmic8xxx_kp - internal keypad data structure
83 * @key_sense_irq: key press/release irq number
84 * @key_stuck_irq: key stuck notification irq number
85 * @keycodes: array to hold the key codes
87 * @keystate: present key press/release state
88 * @stuckstate: present state when key stuck irq
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/linux/arch/arm/boot/dts/samsung/
H A Dexynos4210-origen.dts1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
7 * Copyright (c) 2010-2011 Linaro Ltd.
14 /dts-v1/;
16 #include <dt-bindings/gpio/gpio.h>
17 #include <dt-bindings/input/input.h>
18 #include <dt-bindings/leds/common.h>
19 #include "exynos-mfc-reserved-memory.dtsi"
40 stdout-path = "serial2:115200n8";
43 mmc_reg: voltage-regulator {
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H A Dexynos5250-arndale.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/clock/samsung,s2mps11.h>
14 #include <dt-bindings/sound/samsung-i2s.h>
32 stdout-path = "serial2:115200n8";
35 gpio-keys {
36 compatible = "gpio-keys";
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/linux/arch/arm/boot/dts/microchip/
H A Danimeo_ip.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * animeo_ip.dts - Device Tree file for Somfy Animeo IP Boards
5 * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
8 /dts-v1/;
13 compatible = "somfy,animeo-ip", "atmel,at91sam9260", "atmel,at91sam9";
26 stdout-path = &usart2;
35 clock-frequency = <32768>;
39 clock-frequency = <18432000>;
47 compatible = "atmel,tcb-timer";
52 compatible = "atmel,tcb-timer";
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/linux/Documentation/scheduler/
H A Dsched-capacity.rst9 ----------------
13 different performance characteristics - on such platforms, not all CPUs can be
23 - not all CPUs may have the same microarchitecture (µarch).
24 - with Dynamic Voltage and Frequency Scaling (DVFS), not all CPUs may be
28 performance-oriented than the LITTLE ones (more pipeline stages, bigger caches,
39 -------------------
49 while ``original capacity`` is class-agnostic. The rest of this document will use
54 ---------------------
59 Consider an hypothetical dual-core asymmetric CPU capacity system where
61 - work_per_hz(CPU0) = W
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