| /linux-6.12.1/Documentation/devicetree/bindings/leds/ |
| D | leds-bcm6328.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-bcm6328.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Álvaro Fernández Rojas <noltari@gmail.com>
17 as spi-gpio. See
21 exporting the 74x164 as spi-gpio prevents those LEDs to be hardware
24 BCM6328 LED controller has a HWDIS register, which controls whether a LED
27 is usually 1:1 for hardware to LED signals, but through the activity/link
29 explained later in brcm,link-signal-sources). Even if a LED is hardware
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| D | leds-bcm6358.txt | 5 which can either be controlled by software (exporting the 74x164 as spi-gpio.
10 - compatible : should be "brcm,bcm6358-leds".
11 - #address-cells : must be 1.
12 - #size-cells : must be 0.
13 - reg : BCM6358 LED controller address and size.
16 - brcm,clk-div : SCK signal divider. Possible values are 1, 2, 4 and 8.
18 - brcm,clk-dat-low : Boolean, makes clock and data signals active low.
21 Each LED is represented as a sub-node of the brcm,bcm6358-leds device.
23 LED sub-node required properties:
24 - reg : LED pin number (only LEDs 0 to 31 are valid).
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| D | common.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 LED and flash LED devices provide the same basic functionality as current
15 regulators, but extended with LED and flash LED specific features like
18 Many LED devices expose more than one current output that can be connected
19 to one or more discrete LED component. Since the arrangement of connections
20 can influence the way of the LED device initialization, the LED components
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| D | leds-pwm-multicolor.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-pwm-multicolor.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Multi-color LEDs connected to PWM
10 - Sven Schwermer <sven.schwermer@disruptive-technologies.com>
13 This driver combines several monochrome PWM LEDs into one multi-color
14 LED using the multicolor LED class.
18 const: pwm-leds-multicolor
20 multi-led:
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| /linux-6.12.1/arch/mips/boot/dts/brcm/ |
| D | bcm63268-comtrend-vr-3032u.dts | 1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
7 compatible = "comtrend,vr-3032u", "brcm,bcm63268";
8 model = "Comtrend VR-3032u";
17 stdout-path = &uart0;
23 brcm,serial-leds;
24 brcm,serial-dat-low;
25 brcm,serial-shift-inv;
27 led@0 {
29 brcm,hardware-controlled;
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| D | bcm6358-neufbox4-sercomm.dts | 1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
7 compatible = "sfr,nb4-ser", "brcm,bcm6358";
17 stdout-path = &uart0;
24 led@0 {
26 active-low;
27 label = "nb4-ser:white:alarm";
29 led@2 {
31 active-low;
32 label = "nb4-ser:white:tv";
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| /linux-6.12.1/Documentation/devicetree/bindings/leds/irled/ |
| D | ir-spi-led.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/irled/ir-spi-led.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: IR LED connected through SPI bus
10 - Sean Young <sean@mess.org>
13 IR LED switch is connected to the MOSI line of the SPI device and the data
17 - $ref: /schemas/spi/spi-peripheral-props.yaml#
21 const: ir-spi-led
26 duty-cycle:
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| /linux-6.12.1/arch/riscv/boot/dts/sifive/ |
| D | hifive-unleashed-a00.dts | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /* Copyright (c) 2018-2019 SiFive, Inc */
4 #include "fu540-c000.dtsi"
5 #include <dt-bindings/gpio/gpio.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/pwm/pwm.h>
14 compatible = "sifive,hifive-unleashed-a00", "sifive,fu540-c000",
18 stdout-path = "serial0";
22 timebase-frequency = <RTCCLK_FREQ>;
31 #clock-cells = <0>;
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| D | hifive-unmatched-a00.dts | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
4 #include "fu740-c000.dtsi"
5 #include <dt-bindings/gpio/gpio.h>
6 #include <dt-bindings/interrupt-controller/irq.h>
7 #include <dt-bindings/leds/common.h>
8 #include <dt-bindings/pwm/pwm.h>
15 compatible = "sifive,hifive-unmatched-a00", "sifive,fu740-c000",
19 stdout-path = "serial0";
23 timebase-frequency = <RTCCLK_FREQ>;
32 #clock-cells = <0>;
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| /linux-6.12.1/Documentation/driver-api/gpio/ |
| D | board.rst | 14 -----------
20 <function>-gpios, where <function> is the function the driver will request
26 led-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>, /* red */
30 power-gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
33 Properties named <function>-gpio are also considered valid and old bindings use
38 "led" function, and GPIO 1 as the "power" GPIO::
42 red = gpiod_get_index(dev, "led", 0, GPIOD_OUT_HIGH);
43 green = gpiod_get_index(dev, "led", 1, GPIOD_OUT_HIGH);
44 blue = gpiod_get_index(dev, "led", 2, GPIOD_OUT_HIGH);
48 The led GPIOs will be active high, while the power GPIO will be active low (i.e.
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| D | intro.rst | 17 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
25 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
26 non-dedicated pin can be configured as a GPIO; and most chips have at least
31 Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
36 - Output values are writable (high=1, low=0). Some chips also have
38 value might be driven, supporting "wire-OR" and similar schemes for the
41 - Input values are likewise readable (1, 0). Some chips support readback
42 of pins configured as "output", which is very useful in such "wire-OR"
44 input de-glitch/debounce logic, sometimes with software controls.
46 - Inputs can often be used as IRQ signals, often edge triggered but
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| /linux-6.12.1/arch/arm/boot/dts/st/ |
| D | stm32mp157c-lxa-tac-gen2.dts | 1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
3 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
8 /dts-v1/;
11 #include "stm32mp15xc-lxa-tac.dtsi"
15 compatible = "lxa,stm32mp157c-tac-gen2", "oct,stm32mp15xx-osd32", "st,stm32mp157";
18 compatible = "pwm-backlight";
19 power-supply = <&v3v3>;
21 brightness-levels = <0 31 63 95 127 159 191 223 255>;
22 default-brightness-level = <7>;
26 reg_iobus_12v: regulator-iobus-12v {
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| D | stm32mp157c-lxa-mc1.dts | 1 /* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
3 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
7 /dts-v1/;
10 #include "stm32mp15xx-osd32.dtsi"
11 #include "stm32mp15xxac-pinctrl.dtsi"
13 #include <dt-bindings/gpio/gpio.h>
14 #include <dt-bindings/pwm/pwm.h>
17 model = "Linux Automation MC-1 board";
18 compatible = "lxa,stm32mp157c-mc1", "oct,stm32mp15xx-osd32", "st,stm32mp157";
28 compatible = "pwm-backlight";
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| D | stih410-b2260.dts | 1 // SPDX-License-Identifier: GPL-2.0-only
6 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
12 compatible = "st,stih410-b2260", "st,stih410";
15 stdout-path = &uart1;
29 compatible = "gpio-leds";
30 led-user-green-1 {
33 linux,default-trigger = "heartbeat";
34 default-state = "off";
37 led-user-green-2 {
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| /linux-6.12.1/arch/arm64/boot/dts/broadcom/bcmbca/ |
| D | bcm4908-asus-gt-ac5300.dts | 1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
3 #include <dt-bindings/gpio/gpio.h>
4 #include <dt-bindings/input/input.h>
5 #include <dt-bindings/leds/common.h>
10 compatible = "asus,gt-ac5300", "brcm,bcm4908", "brcm,bcmbca";
11 model = "Asus GT-AC5300";
18 gpio-keys-polled {
19 compatible = "gpio-keys-polled";
20 poll-interval = <100>;
22 key-wifi {
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| /linux-6.12.1/drivers/leds/ |
| D | leds-bcm6358.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for BCM6358 memory-mapped LEDs, based on leds-syscon.c
31 * struct bcm6358_led - state container for bcm6358 based LEDs
32 * @cdev: LED class device for this LED
35 * @pin: LED pin number
36 * @active_low: LED is active low
78 struct bcm6358_led *led = in bcm6358_led_set() local
82 spin_lock_irqsave(led->lock, flags); in bcm6358_led_set()
83 bcm6358_led_busy(led->mem); in bcm6358_led_set()
84 val = bcm6358_led_read(led->mem + BCM6358_REG_MODE); in bcm6358_led_set()
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| D | leds-sc27xx-bltc.c | 1 // SPDX-License-Identifier: GPL-2.0
52 bool active; member
84 return leds->priv->base + SC27XX_LEDS_OFFSET * leds->line; in sc27xx_led_get_offset()
90 u32 ctrl_base = leds->priv->base + SC27XX_LEDS_CTRL; in sc27xx_led_enable()
91 u8 ctrl_shift = SC27XX_CTRL_SHIFT * leds->line; in sc27xx_led_enable()
92 struct regmap *regmap = leds->priv->regmap; in sc27xx_led_enable()
109 struct regmap *regmap = leds->priv->regmap; in sc27xx_led_disable()
110 u32 ctrl_base = leds->priv->base + SC27XX_LEDS_CTRL; in sc27xx_led_disable()
111 u8 ctrl_shift = SC27XX_CTRL_SHIFT * leds->line; in sc27xx_led_disable()
122 mutex_lock(&leds->priv->lock); in sc27xx_led_set()
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| D | leds-bcm6328.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for BCM6328 memory-mapped LEDs, based on leds-syscon.c
59 * struct bcm6328_led - state container for bcm6328 based LEDs
60 * @cdev: LED class device for this LED
63 * @pin: LED pin number
66 * @active_low: LED is active low
98 * bits [31:0] -> LEDs 8-23
99 * bits [47:32] -> LEDs 0-7
100 * bits [63:48] -> unused
105 return pin + 16; /* LEDs 0-7 (bits 47:32) */ in bcm6328_pin2shift()
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| D | leds-tlc591xx.c | 1 // SPDX-License-Identifier: GPL-2.0-only
33 /* LED Driver Output State, determine the source that drives LED outputs */
34 #define LEDOUT_OFF 0x0 /* Output LOW */
35 #define LEDOUT_ON 0x1 /* Output HI-Z */
43 bool active; member
86 tlc591xx_set_ledout(struct tlc591xx_priv *priv, struct tlc591xx_led *led, in tlc591xx_set_ledout() argument
89 unsigned int i = (led->led_no % 4) * 2; in tlc591xx_set_ledout()
91 unsigned int addr = priv->reg_ledout_offset + (led->led_no >> 2); in tlc591xx_set_ledout()
95 return regmap_update_bits(priv->regmap, addr, mask, val); in tlc591xx_set_ledout()
99 tlc591xx_set_pwm(struct tlc591xx_priv *priv, struct tlc591xx_led *led, in tlc591xx_set_pwm() argument
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| /linux-6.12.1/arch/arm/boot/dts/marvell/ |
| D | kirkwood-l-50.dts | 1 // SPDX-License-Identifier: GPL-2.0
3 * Check Point L-50 Board Description
7 /dts-v1/;
10 #include "kirkwood-6281.dtsi"
13 model = "Check Point L-50";
14 compatible = "checkpoint,l-50", "marvell,kirkwood-88f6281", "marvell,kirkwood";
23 stdout-path = &uart0;
27 pinctrl: pin-controller@10000 {
28 pinctrl-0 = <&pmx_led38 &pmx_sysrst &pmx_button29>;
29 pinctrl-names = "default";
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| D | dove-cm-a510.dtsi | 2 * Device Tree include for Compulab CM-A510 System-on-Module
6 * This file is dual-licensed: you can use it either under the terms
46 * The CM-A510 comes with several optional components:
66 * U2: 2 dual-role USB2.0 ports
70 * W: Broadcom BCM4319 802.11b/g/n (USI WM-N-BM-01 on SDIO1)
72 * GPIOs used on CM-A510:
73 * 1 GbE PHY reset (active low)
75 * 8 PowerOff (active low)
76 * 13 Touchscreen pen irq (active low)
77 * 65 System LED (active high)
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| /linux-6.12.1/include/linux/platform_data/ |
| D | lm3630a_bl.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Simple driver for Texas Instruments LM3630A LED Flash driver chip
37 *@leda_label : optional led a label.
38 *@leda_init_brt : led a init brightness. 4~255
39 *@leda_max_brt : led a max brightness. 4~255
40 *@leda_ctrl : led a disable, enable linear, enable exponential
41 *@ledb_label : optional led b label.
42 *@ledb_init_brt : led b init brightness. 4~255
43 *@ledb_max_brt : led b max brightness. 4~255
44 *@ledb_ctrl : led b disable, enable linear, enable exponential
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| /linux-6.12.1/arch/arm64/boot/dts/rockchip/ |
| D | rk3399-ficus.dts | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
9 /dts-v1/;
10 #include "rk3399-rock960.dtsi"
21 stdout-path = "serial2:1500000n8";
24 clkin_gmac: external-gmac-clock {
25 compatible = "fixed-clock";
26 clock-frequency = <125000000>;
27 clock-output-names = "clkin_gmac";
28 #clock-cells = <0>;
32 compatible = "gpio-leds";
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| /linux-6.12.1/Documentation/devicetree/bindings/mfd/ |
| D | max77650.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MAX77650 ultra low-power PMIC from Maxim Integrated.
10 - Bartosz Golaszewski <bgolaszewski@baylibre.com>
13 MAX77650 is an ultra-low power PMIC providing battery charging and power
14 supply for low-power IoT and wearable applications.
16 The GPIO-controller module is represented as part of the top-level PMIC
19 For device-tree bindings of other sub-modules (regulator, power supply,
21 sub-system directories.
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| /linux-6.12.1/Documentation/devicetree/bindings/pinctrl/ |
| D | brcm,nsp-gpio.txt | 4 - compatible:
5 Must be "brcm,nsp-gpio-a"
7 - reg:
11 - #gpio-cells:
14 bit[0]: polarity (0 for active high and 1 for active low)
16 - gpio-controller:
19 - ngpios:
23 - interrupts:
26 - interrupt-controller:
29 - gpio-ranges:
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