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/linux/sound/usb/caiaq/
H A Dcontrol.c1 // SPDX-License-Identifier: GPL-2.0-or-later
24 struct snd_usb_caiaqdev *cdev = caiaqdev(chip->card); in control_info()
25 int pos = kcontrol->private_value; in control_info()
29 uinfo->count = 1; in control_info()
32 switch (cdev->chip.usb_id) { in control_info()
37 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; in control_info()
38 uinfo->value.integer.min = 0; in control_info()
39 uinfo->value.integer.max = 2; in control_info()
54 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; in control_info()
55 uinfo->value.integer.min = 0; in control_info()
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/linux/drivers/leds/
H A Dleds-bd2802.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * leds-bd2802.c - RGB LED Driver
8 * Datasheet: http://www.rohm.com/products/databook/driver/pdf/bd2802gu-e.pdf
16 #include <linux/leds-bd2802.h>
73 struct led_state led[2]; member
104 /*--------------------------------------------------------------*/
106 /*--------------------------------------------------------------*/
108 static inline int bd2802_is_rgb_off(struct bd2802_led *led, enum led_ids id, in bd2802_is_rgb_off() argument
113 return !led->led[id].r; in bd2802_is_rgb_off()
115 return !led->led[id].g; in bd2802_is_rgb_off()
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H A Dleds-lm3692x.c1 // SPDX-License-Identifier: GPL-2.0
2 // TI LM3692x LED chip family driver
3 // Copyright (C) 2017-18 Texas Instruments Incorporated - https://www.ti.com/
101 * @led_dev: LED class device pointer
104 * @regulator: LED supply regulator pointer
105 * @led_enable: LED sync to be enabled
145 static int lm3692x_fault_check(struct lm3692x_led *led) in lm3692x_fault_check() argument
150 ret = regmap_read(led->regmap, LM3692X_FAULT_FLAGS, &read_buf); in lm3692x_fault_check()
155 dev_err(&led->client->dev, "Detected a fault 0x%X\n", read_buf); in lm3692x_fault_check()
160 regmap_read(led->regmap, LM3692X_FAULT_FLAGS, &read_buf); in lm3692x_fault_check()
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H A Dleds-cpcap.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 #include <linux/mfd/motorola-cpcap.h>
52 /* camera privacy led */
62 struct led_classdev led; member
81 static int cpcap_led_set_power(struct cpcap_led *led, bool status) in cpcap_led_set_power() argument
85 if (status == led->powered) in cpcap_led_set_power()
89 err = regulator_enable(led->vdd); in cpcap_led_set_power()
91 err = regulator_disable(led->vdd); in cpcap_led_set_power()
94 dev_err(led->dev, "regulator failure: %d", err); in cpcap_led_set_power()
98 led->powered = status; in cpcap_led_set_power()
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H A Dleds-max8997.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * leds-max8997.c - LED class driver for MAX8997 LEDs.
14 #include <linux/mfd/max8997-private.h>
47 static void max8997_led_set_mode(struct max8997_led *led, in max8997_led_set_mode() argument
51 struct i2c_client *client = led->iodev->i2c; in max8997_led_set_mode()
57 val = led->id ? in max8997_led_set_mode()
59 led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS; in max8997_led_set_mode()
63 val = led->id ? in max8997_led_set_mode()
65 led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS; in max8997_led_set_mode()
70 val = led->id ? in max8997_led_set_mode()
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H A Dleds-ns2.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * leds-ns2.c - Driver for the Network Space v2 (and parents) dual-GPIO LED
9 * Based on leds-gpio.c by Raphael Assenat <raph@8d.com>
39 * The Network Space v2 dual-GPIO LED is wired to a CPLD. Three different LED
40 * modes are available: off, on and SATA activity blinking. The LED modes are
42 * for the command/slow GPIOs corresponds to a LED mode.
56 static int ns2_led_get_mode(struct ns2_led *led, enum ns2_led_modes *mode) in ns2_led_get_mode() argument
62 cmd_level = gpiod_get_value_cansleep(led->cmd); in ns2_led_get_mode()
63 slow_level = gpiod_get_value_cansleep(led->slow); in ns2_led_get_mode()
65 for (i = 0; i < led->num_modes; i++) { in ns2_led_get_mode()
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H A Dleds-lm3697.c1 // SPDX-License-Identifier: GPL-2.0
2 // TI LM3697 LED chip family driver
3 // Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
15 #include <linux/leds-ti-lmu-common.h>
47 * struct lm3697_led -
48 * @hvled_strings: Array of LED strings associated with a control bank
49 * @label: LED label
50 * @led_dev: LED class device
53 * @control_bank: Control bank the LED is associated to. 0 is control bank A
55 * @enabled: LED brightness level (or LED_OFF)
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H A Dleds-wm8350.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * LED driver for WM8350 driven LEDS.
88 static int wm8350_led_enable(struct wm8350_led *led) in wm8350_led_enable() argument
92 if (led->enabled) in wm8350_led_enable()
95 ret = regulator_enable(led->isink); in wm8350_led_enable()
97 dev_err(led->cdev.dev, "Failed to enable ISINK: %d\n", ret); in wm8350_led_enable()
101 ret = regulator_enable(led->dcdc); in wm8350_led_enable()
103 dev_err(led->cdev.dev, "Failed to enable DCDC: %d\n", ret); in wm8350_led_enable()
104 regulator_disable(led->isink); in wm8350_led_enable()
108 led->enabled = 1; in wm8350_led_enable()
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H A Dleds-lm3533.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * leds-lm3533.c -- LM3533 LED driver
5 * Copyright (C) 2011-2012 Texas Instruments
59 static inline int lm3533_led_get_ctrlbank_id(struct lm3533_led *led) in lm3533_led_get_ctrlbank_id() argument
61 return led->id + 2; in lm3533_led_get_ctrlbank_id()
64 static inline u8 lm3533_led_get_lv_reg(struct lm3533_led *led, u8 base) in lm3533_led_get_lv_reg() argument
66 return base + led->id; in lm3533_led_get_lv_reg()
69 static inline u8 lm3533_led_get_pattern(struct lm3533_led *led) in lm3533_led_get_pattern() argument
71 return led->id; in lm3533_led_get_pattern()
74 static inline u8 lm3533_led_get_pattern_reg(struct lm3533_led *led, in lm3533_led_get_pattern_reg() argument
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H A Dleds-lp8860.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * TI LP8860 4-Channel LED Driver
90 * @led_dev: led class device pointer
94 * @regulator: LED supply regulator pointer
139 static int lp8860_unlock_eeprom(struct lp8860_led *led, int lock) in lp8860_unlock_eeprom() argument
143 mutex_lock(&led->lock); in lp8860_unlock_eeprom()
146 ret = regmap_write(led->regmap, in lp8860_unlock_eeprom()
150 dev_err(&led->client->dev, "EEPROM Unlock failed\n"); in lp8860_unlock_eeprom()
154 ret = regmap_write(led->regmap, in lp8860_unlock_eeprom()
158 dev_err(&led->client->dev, "EEPROM Unlock failed\n"); in lp8860_unlock_eeprom()
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H A Dleds-regulator.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * leds-regulator.c - LED class driver for regulator driven LEDs.
7 * Inspired by leds-wm8350 driver.
15 #include <linux/leds-regulator.h>
40 * and the LED can be turned on and off. in led_regulator_get_max_brightness()
53 return -EINVAL; in led_regulator_get_voltage()
55 return regulator_list_voltage(supply, brightness - 1); in led_regulator_get_voltage()
59 static void regulator_led_enable(struct regulator_led *led) in regulator_led_enable() argument
63 if (led->enabled) in regulator_led_enable()
66 ret = regulator_enable(led->vcc); in regulator_led_enable()
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H A Dleds-wm831x-status.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * LED driver for WM831x status LEDs
38 static void wm831x_status_set(struct wm831x_status *led) in wm831x_status_set() argument
42 mutex_lock(&led->mutex); in wm831x_status_set()
44 led->reg_val &= ~(WM831X_LED_SRC_MASK | WM831X_LED_MODE_MASK | in wm831x_status_set()
47 spin_lock_irqsave(&led->value_lock, flags); in wm831x_status_set()
49 led->reg_val |= led->src << WM831X_LED_SRC_SHIFT; in wm831x_status_set()
50 if (led->blink) { in wm831x_status_set()
51 led->reg_val |= 2 << WM831X_LED_MODE_SHIFT; in wm831x_status_set()
52 led->reg_val |= led->blink_time << WM831X_LED_DUR_SHIFT; in wm831x_status_set()
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H A Dleds-pm8058.c1 // SPDX-License-Identifier: GPL-2.0-only
30 struct pm8058_led *led; in pm8058_led_set() local
35 led = container_of(cled, struct pm8058_led, cdev); in pm8058_led_set()
36 switch (led->ledtype) { in pm8058_led_set()
50 ret = regmap_update_bits(led->map, led->reg, mask, val); in pm8058_led_set()
52 pr_err("Failed to set LED brightness\n"); in pm8058_led_set()
57 struct pm8058_led *led; in pm8058_led_get() local
61 led = container_of(cled, struct pm8058_led, cdev); in pm8058_led_get()
63 ret = regmap_read(led->map, led->reg, &val); in pm8058_led_get()
65 pr_err("Failed to get LED brightness\n"); in pm8058_led_get()
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H A Dleds-cht-wcove.c1 // SPDX-License-Identifier: GPL-2.0
30 #define CHT_WC_LED1_SWCTL BIT(0) /* HW or SW control of charging led */
34 #define CHT_WC_LED_I_MA2_5 (2 << 2) /* LED current limit */
35 #define CHT_WC_LED_I_MASK GENMASK(3, 2) /* LED current limit mask */
56 /* Mask + values for turning the LED on/off */
109 struct cht_wc_led *led = container_of(cdev, struct cht_wc_led, cdev); in cht_wc_leds_brightness_set() local
112 mutex_lock(&led->mutex); in cht_wc_leds_brightness_set()
115 ret = regmap_update_bits(led->regmap, led->regs->ctrl, in cht_wc_leds_brightness_set()
116 led->regs->on_off_mask, led->regs->off_val); in cht_wc_leds_brightness_set()
118 dev_err(cdev->dev, "Failed to turn off: %d\n", ret); in cht_wc_leds_brightness_set()
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H A Dleds-pca963x.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Author: Peter Meerwald <p.meerwald@bct-electronic.com>
9 * Based on leds-pca955x.c
11 * LED driver for the PCA9633 I2C LED driver (7-bit slave address 0x62)
12 * LED driver for the PCA9634/5 I2C LED driver (7-bit slave address set by hw.)
18 * in identical fashion. The delay_on/delay_off values of the last LED
22 * or by adding the 'nxp,hw-blink' property to the DTS.
36 /* LED select registers determine the source that drives LED outputs */
37 #define PCA963X_LED_OFF 0x0 /* LED driver off */
38 #define PCA963X_LED_ON 0x1 /* LED driver on */
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H A Dleds-el15203000.c1 // SPDX-License-Identifier: GPL-2.0
14 * +-----+---------+
15 * | LED | COMMAND |
16 * +-----+---------+
18 * +-----+---------+
22 * +----------+--------------+-------------------------------------------+
24 * +----------+--------------+-------------------------------------------+
26 * +----------+--------------+-------------------------------------------+
28 * +----------+--------------+-------------------------------------------+
30 * +----------+--------------+-------------------------------------------+
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H A Dleds-an30259a.c1 // SPDX-License-Identifier: GPL-2.0+
3 // Driver for Panasonic AN30259A 3-channel LED driver
22 /* LED power registers */
24 #define AN30259A_LED_EN(x) BIT((x) - 1)
25 #define AN30259A_LED_SLOPE(x) BIT(((x) - 1) + 4)
27 #define AN30259A_REG_LEDCC(x) (0x03 + ((x) - 1))
30 #define AN30259A_REG_SLOPE(x) (0x06 + ((x) - 1))
34 #define AN30259A_REG_LEDCNT1(x) (0x09 + (4 * ((x) - 1)))
38 #define AN30259A_REG_LEDCNT2(x) (0x0A + (4 * ((x) - 1)))
43 #define AN30259A_REG_LEDCNT3(x) (0x0B + (4 * ((x) - 1)))
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/linux/drivers/net/wireless/broadcom/b43/
H A Dleds.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 LED control
7 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
9 Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
48 struct b43_led *led) in b43_led_update() argument
53 if (!led->wl) in b43_led_update()
56 radio_enabled = (dev->phy.radio_on && dev->radio_hw_enable); in b43_led_update()
58 /* The led->state read is racy, but we don't care. In case we raced in b43_led_update()
62 turn_on = atomic_read(&led->state) != LED_OFF; in b43_led_update()
65 if (turn_on == led->hw_state) in b43_led_update()
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/linux/Documentation/devicetree/bindings/leds/
H A Dleds-mt6360.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-mt6360.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LED driver for MT6360 PMIC from MediaTek Integrated.
10 - Gene Chen <gene_chen@richtek.com>
15 Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
16 and 4-channel RGB LED support Register/Flash/Breath Mode
20 const: mediatek,mt6360-led
22 "#address-cells":
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H A Dleds-lp55xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lp55xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI/National Semiconductor LP55xx and LP8501 LED Drivers
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
15 LED Drivers.
27 - national,lp5521
28 - national,lp5523
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H A Dqcom,spmi-flash-led.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/qcom,spmi-flash-led.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Flash LED device inside Qualcomm Technologies, Inc. PMICs
10 - Fenglin Wu <quic_fenglinw@quicinc.com>
13 Flash LED controller is present inside some Qualcomm Technologies, Inc. PMICs.
14 The flash LED module can have different number of LED channels supported
24 - enum:
25 - qcom,pm6150l-flash-led
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/linux/drivers/leds/flash/
H A Dleds-mt6360.c1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/led-class-flash.h>
9 #include <linux/led-class-multicolor.h>
15 #include <media/v4l2-flash-led-class.h>
29 #define MT6360_ISNK_ENMASK(_led_no) BIT(7 - (_led_no))
39 #define MT6360_REG_FLEDBASE(_id) (0x372 + 4 * (_id - MT6360_LED_FLASH1))
49 #define MT6360_FLCSEN_MASK(_id) BIT(MT6360_LED_FLASH2 - _id)
101 struct mt6360_led *led = container_of(mccdev, struct mt6360_led, mc); in mt6360_mc_brightness_set() local
102 struct mt6360_priv *priv = led->priv; in mt6360_mc_brightness_set()
106 mutex_lock(&priv->lock); in mt6360_mc_brightness_set()
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/linux/Documentation/ABI/testing/
H A Dsysfs-class-led-trigger-netdev1 What: /sys/class/leds/<led>/device_name
4 Contact: linux-leds@vger.kernel.org
8 What: /sys/class/leds/<led>/interval
11 Contact: linux-leds@vger.kernel.org
13 Specifies the duration of the LED blink in milliseconds.
21 What: /sys/class/leds/<led>/link
24 Contact: linux-leds@vger.kernel.org
28 If set to 0 (default), the LED's normal state is off.
30 If set to 1, the LED's normal state reflects the link state
32 Setting this value also immediately changes the LED state.
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/linux/drivers/hid/
H A Dhid-gt683r.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * MSI GT683R led driver
14 #include "hid-ids.h"
63 struct device *dev = led_cdev->dev->parent; in gt683r_brightness_set()
65 struct gt683r_led *led = hid_get_drvdata(hdev); in gt683r_brightness_set() local
68 if (led_cdev == &led->led_devs[i]) in gt683r_brightness_set()
73 led->brightnesses[i] = brightness; in gt683r_brightness_set()
74 schedule_work(&led->work); in gt683r_brightness_set()
83 struct hid_device *hdev = to_hid_device(dev->parent); in mode_show()
84 struct gt683r_led *led = hid_get_drvdata(hdev); in mode_show() local
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/linux/drivers/gpu/drm/nouveau/
H A Dnouveau_led.c37 nouveau_led_get_brightness(struct led_classdev *led) in nouveau_led_get_brightness() argument
39 struct drm_device *drm_dev = container_of(led, struct nouveau_led, led)->dev; in nouveau_led_get_brightness()
41 struct nvif_object *device = &drm->client.device.object; in nouveau_led_get_brightness()
54 nouveau_led_set_brightness(struct led_classdev *led, enum led_brightness value) in nouveau_led_set_brightness() argument
56 struct drm_device *drm_dev = container_of(led, struct nouveau_led, led)->dev; in nouveau_led_set_brightness()
58 struct nvif_object *device = &drm->clien in nouveau_led_set_brightness()
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