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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/backlight/
Dpwm-backlight.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/pwm-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: pwm-backlight bindings
10 - Lee Jones <lee.jones@linaro.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
16 const: pwm-backlight
21 pwm-names: true
[all …]
Dled-backlight.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/led-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: led-backlight bindings
10 - Lee Jones <lee.jones@linaro.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
21 const: led-backlight
25 $ref: /schemas/types.yaml#/definitions/phandle-array
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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 <bjorn.andersson@linaro.org>
11 - Kiran Gunda <kgunda@codeaurora.org>
21 - qcom,pm8941-wled
22 - qcom,pmi8998-wled
23 - qcom,pm660l-wled
24 - qcom,pm8150l-wled
[all …]
Dlm3630a-backlight.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/lm3630a-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI LM3630A High-Efficiency Dual-String White LED
10 - Lee Jones <lee.jones@linaro.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
15 The LM3630A is a current-mode boost converter which supplies the power and
26 '#address-cells':
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Dcommon.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lee Jones <lee.jones@linaro.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
20 default-brightness:
22 The default brightness that should be applied to the LED by the operating
23 system on start-up. The brightness should not exceed the brightness the
27 max-brightness:
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/kernel/linux/linux-6.6/Documentation/devicetree/bindings/leds/backlight/
Dpwm-backlight.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/pwm-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: pwm-backlight
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
16 const: pwm-backlight
21 pwm-names: true
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Dled-backlight.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/led-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: led-backlight
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
21 const: led-backlight
25 $ref: /schemas/types.yaml#/definitions/phandle-array
[all …]
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 <bjorn.andersson@linaro.org>
11 - Kiran Gunda <kgunda@codeaurora.org>
21 - qcom,pm8941-wled
22 - qcom,pmi8950-wled
23 - qcom,pmi8994-wled
24 - qcom,pmi8998-wled
[all …]
Dlm3630a-backlight.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/lm3630a-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI LM3630A High-Efficiency Dual-String White LED
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
15 The LM3630A is a current-mode boost converter which supplies the power and
26 '#address-cells':
[all …]
Dmediatek,mt6370-backlight.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/mediatek,mt6370-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiaEn Wu <chiaen_wu@richtek.com>
21 - $ref: common.yaml#
26 - mediatek,mt6370-backlight
27 - mediatek,mt6372-backlight
29 default-brightness:
32 max-brightness:
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Dcommon.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Lee Jones <lee@kernel.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
20 default-brightness:
22 The default brightness that should be applied to the LED by the operating
23 system on start-up. The brightness should not exceed the brightness the
27 max-brightness:
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/kernel/linux/linux-5.10/drivers/video/backlight/
Dktd253-backlight.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Based on code and know-how from the Samsung GT-S7710
40 gpiod_set_value_cansleep(ktd253->gpiod, 1); in ktd253_backlight_set_max_ratio()
63 gpiod_set_value(ktd253->gpiod, 0); in ktd253_backlight_stepdown()
65 gpiod_set_value(ktd253->gpiod, 1); in ktd253_backlight_stepdown()
66 ns = ktime_get_ns() - ns; in ktd253_backlight_stepdown()
68 dev_err(ktd253->dev, "PCM on backlight took too long (%llu ns)\n", ns); in ktd253_backlight_stepdown()
69 return -EAGAIN; in ktd253_backlight_stepdown()
78 int brightness = backlight_get_brightness(bl); in ktd253_backlight_update_status() local
80 u16 current_ratio = ktd253->ratio; in ktd253_backlight_update_status()
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Dpwm_bl.c1 // SPDX-License-Identifier: GPL-2.0-only
35 int brightness);
37 int brightness);
47 pwm_get_state(pb->pwm, &state); in pwm_backlight_power_on()
48 if (pb->enabled) in pwm_backlight_power_on()
51 err = regulator_enable(pb->power_supply); in pwm_backlight_power_on()
53 dev_err(pb->dev, "failed to enable power supply\n"); in pwm_backlight_power_on()
56 pwm_apply_state(pb->pwm, &state); in pwm_backlight_power_on()
58 if (pb->post_pwm_on_delay) in pwm_backlight_power_on()
59 msleep(pb->post_pwm_on_delay); in pwm_backlight_power_on()
[all …]
Dled_bl.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2015-2019 Texas Instruments Incorporated - http://www.ti.com/
30 if (priv->levels) in led_bl_set_brightness()
31 bkl_brightness = priv->levels[level]; in led_bl_set_brightness()
35 for (i = 0; i < priv->nb_leds; i++) in led_bl_set_brightness()
36 led_set_brightness(priv->leds[i], bkl_brightness); in led_bl_set_brightness()
38 priv->enabled = true; in led_bl_set_brightness()
45 if (!priv->enabled) in led_bl_power_off()
48 for (i = 0; i < priv->nb_leds; i++) in led_bl_power_off()
49 led_set_brightness(priv->leds[i], LED_OFF); in led_bl_power_off()
[all …]
Das3711_bl.c1 // SPDX-License-Identifier: GPL-2.0
29 int brightness; member
42 switch (su->type) { in to_supply()
52 unsigned int brightness) in as3711_set_brightness_auto_i() argument
55 struct as3711 *as3711 = supply->as3711; in as3711_set_brightness_auto_i()
56 const struct as3711_bl_pdata *pdata = supply->pdata; in as3711_set_brightness_auto_i()
60 if (pdata->su2_auto_curr1) in as3711_set_brightness_auto_i()
61 ret = regmap_write(as3711->regmap, AS3711_CURR1_VALUE, in as3711_set_brightness_auto_i()
62 brightness); in as3711_set_brightness_auto_i()
63 if (!ret && pdata->su2_auto_curr2) in as3711_set_brightness_auto_i()
[all …]
/kernel/linux/linux-6.6/drivers/video/backlight/
Dktd253-backlight.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Based on code and know-how from the Samsung GT-S7710
40 gpiod_set_value_cansleep(ktd253->gpiod, 1); in ktd253_backlight_set_max_ratio()
63 gpiod_set_value(ktd253->gpiod, 0); in ktd253_backlight_stepdown()
65 gpiod_set_value(ktd253->gpiod, 1); in ktd253_backlight_stepdown()
66 ns = ktime_get_ns() - ns; in ktd253_backlight_stepdown()
68 dev_err(ktd253->dev, "PCM on backlight took too long (%llu ns)\n", ns); in ktd253_backlight_stepdown()
69 return -EAGAIN; in ktd253_backlight_stepdown()
78 int brightness = backlight_get_brightness(bl); in ktd253_backlight_update_status() local
80 u16 current_ratio = ktd253->ratio; in ktd253_backlight_update_status()
[all …]
Dpwm_bl.c1 // SPDX-License-Identifier: GPL-2.0-only
34 int brightness);
36 int brightness);
45 if (pb->enabled) in pwm_backlight_power_on()
48 if (pb->power_supply) { in pwm_backlight_power_on()
49 err = regulator_enable(pb->power_supply); in pwm_backlight_power_on()
51 dev_err(pb->dev, "failed to enable power supply\n"); in pwm_backlight_power_on()
54 if (pb->post_pwm_on_delay) in pwm_backlight_power_on()
55 msleep(pb->post_pwm_on_delay); in pwm_backlight_power_on()
57 gpiod_set_value_cansleep(pb->enable_gpio, 1); in pwm_backlight_power_on()
[all …]
Das3711_bl.c1 // SPDX-License-Identifier: GPL-2.0
29 int brightness; member
42 switch (su->type) { in to_supply()
52 unsigned int brightness) in as3711_set_brightness_auto_i() argument
55 struct as3711 *as3711 = supply->as3711; in as3711_set_brightness_auto_i()
56 const struct as3711_bl_pdata *pdata = supply->pdata; in as3711_set_brightness_auto_i()
60 if (pdata->su2_auto_curr1) in as3711_set_brightness_auto_i()
61 ret = regmap_write(as3711->regmap, AS3711_CURR1_VALUE, in as3711_set_brightness_auto_i()
62 brightness); in as3711_set_brightness_auto_i()
63 if (!ret && pdata->su2_auto_curr2) in as3711_set_brightness_auto_i()
[all …]
Dled_bl.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2015-2019 Texas Instruments Incorporated - http://www.ti.com/
30 if (priv->levels) in led_bl_set_brightness()
31 bkl_brightness = priv->levels[level]; in led_bl_set_brightness()
35 for (i = 0; i < priv->nb_leds; i++) in led_bl_set_brightness()
36 led_set_brightness(priv->leds[i], bkl_brightness); in led_bl_set_brightness()
38 priv->enabled = true; in led_bl_set_brightness()
45 if (!priv->enabled) in led_bl_power_off()
48 for (i = 0; i < priv->nb_leds; i++) in led_bl_power_off()
49 led_set_brightness(priv->leds[i], LED_OFF); in led_bl_power_off()
[all …]
Drt4831-backlight.c1 // SPDX-License-Identifier: GPL-2.0-only
3 #include <dt-bindings/leds/rt4831-backlight.h>
42 int brightness = backlight_get_brightness(bl_dev); in rt4831_bl_update_status() local
43 unsigned int enable = brightness ? RT4831_BLEN_MASK : 0; in rt4831_bl_update_status()
47 if (brightness) { in rt4831_bl_update_status()
48 v[0] = (brightness - 1) & RT4831_BLDIML_MASK; in rt4831_bl_update_status()
49 v[1] = ((brightness - 1) & RT4831_BLDIMH_MASK) >> RT4831_BLDIMH_SHIFT; in rt4831_bl_update_status()
51 ret = regmap_raw_write(priv->regmap, RT4831_REG_BLDIML, v, sizeof(v)); in rt4831_bl_update_status()
56 return regmap_update_bits(priv->regmap, RT4831_REG_ENABLE, RT4831_BLEN_MASK, enable); in rt4831_bl_update_status()
67 ret = regmap_read(priv->regmap, RT4831_REG_ENABLE, &val); in rt4831_bl_get_brightness()
[all …]
Dtps65217_bl.c1 // SPDX-License-Identifier: GPL-2.0-only
31 rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1, in tps65217_bl_enable()
35 dev_err(tps65217_bl->dev, in tps65217_bl_enable()
40 tps65217_bl->is_enabled = true; in tps65217_bl_enable()
42 dev_dbg(tps65217_bl->dev, "backlight enabled\n"); in tps65217_bl_enable()
51 rc = tps65217_clear_bits(tps65217_bl->tps, in tps65217_bl_disable()
56 dev_err(tps65217_bl->dev, in tps65217_bl_disable()
61 tps65217_bl->is_enabled = false; in tps65217_bl_disable()
63 dev_dbg(tps65217_bl->dev, "backlight disabled\n"); in tps65217_bl_disable()
72 int brightness = backlight_get_brightness(bl); in tps65217_bl_update_status() local
[all …]
/kernel/linux/linux-5.10/include/linux/
Dleds.h1 /* SPDX-License-Identifier: GPL-2.0-only */
11 #include <dt-bindings/leds/common.h>
28 /* This is obsolete/useless. We now support variable maximum brightness. */
40 * default <color:function> tuple, for backward compatibility
41 * with in-driver hard-coded LED names used as a fallback when
54 * only LEDs exposed by drivers of hot-pluggable devices should
66 enum led_brightness brightness; member
93 /* Set LED brightness level
95 * that can sleep while setting brightness.
98 enum led_brightness brightness);
[all …]
/kernel/linux/linux-5.10/drivers/leds/
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.
14 #include <linux/leds-regulator.h>
49 enum led_brightness brightness) in led_regulator_get_voltage() argument
51 if (brightness == 0) in led_regulator_get_voltage()
52 return -EINVAL; in led_regulator_get_voltage()
54 return regulator_list_voltage(supply, brightness - 1); in led_regulator_get_voltage()
62 if (led->enabled) in regulator_led_enable()
65 ret = regulator_enable(led->vcc); in regulator_led_enable()
[all …]
/kernel/linux/linux-6.6/include/linux/
Dleds.h1 /* SPDX-License-Identifier: GPL-2.0-only */
11 #include <dt-bindings/leds/common.h>
32 /* This is obsolete/useless. We now support variable maximum brightness. */
47 * struct led_lookup_data - represents a single LED lookup entry
65 * default <color:function> tuple, for backward compatibility
66 * with in-driver hard-coded LED names used as a fallback when
79 * only LEDs exposed by drivers of hot-pluggable devices should
101 unsigned int brightness; member
128 /* Brightness off also disables hw-blinking so it is a separate action */
133 /* Set LED brightness level
[all …]
/kernel/linux/linux-6.6/drivers/leds/
Dleds-pwm.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/drivers/leds-pwm.c
9 * based on leds-gpio.c by Raphael Assenat <raph@8d.com>
42 enum led_brightness brightness) in led_pwm_set() argument
46 unsigned int max = led_dat->cdev.max_brightness; in led_pwm_set()
47 unsigned long long duty = led_dat->pwmstate.period; in led_pwm_set()
49 duty *= brightness; in led_pwm_set()
52 if (led_dat->active_low) in led_pwm_set()
53 duty = led_dat->pwmstate.period - duty; in led_pwm_set()
55 led_dat->pwmstate.duty_cycle = duty; in led_pwm_set()
[all …]

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