| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/backlight/ |
| D | pwm-backlight.yaml | 1 # 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 …]
|
| D | led-backlight.yaml | 1 # 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
[all …]
|
| D | qcom-wled.yaml | 1 # 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 …]
|
| D | lm3630a-backlight.yaml | 1 # 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':
[all …]
|
| D | common.yaml | 1 # 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:
[all …]
|
| D | arcxcnn_bl.txt | 4 - compatible: should be "arc,arc2c0608"
5 - reg: slave address
8 - default-brightness: brightness value on boot, value from: 0-4095
9 - label: The name of the backlight device
11 - led-sources: List of enabled channels from 0 to 5.
14 - arc,led-config-0: setting for register ILED_CONFIG_0
15 - arc,led-config-1: setting for register ILED_CONFIG_1
16 - arc,dim-freq: PWM mode frequence setting (bits [3:0] used)
17 - arc,comp-config: setting for register CONFIG_COMP
18 - arc,filter-config: setting for register FILTER_CONFIG
[all …]
|
| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/leds/backlight/ |
| D | pwm-backlight.txt | 1 pwm-backlight bindings
4 - compatible: "pwm-backlight"
5 - pwms: OF device-tree PWM specification (see PWM binding[0])
6 - power-supply: regulator for supply voltage
9 - pwm-names: a list of names for the PWM devices specified in the
11 - enable-gpios: contains a single GPIO specifier for the GPIO which enables
13 - post-pwm-on-delay-ms: Delay in ms between setting an initial (non-zero) PWM
15 - pwm-off-delay-ms: Delay in ms between disabling the backlight using GPIO
17 - brightness-levels: Array of distinct brightness levels. Typically these
19 0 will do. The actual brightness level (PWM duty cycle)
[all …]
|
| D | arcxcnn_bl.txt | 4 - compatible: should be "arc,arc2c0608"
5 - reg: slave address
8 - default-brightness: brightness value on boot, value from: 0-4095
9 - label: The name of the backlight device
11 - led-sources: List of enabled channels from 0 to 5.
14 - arc,led-config-0: setting for register ILED_CONFIG_0
15 - arc,led-config-1: setting for register ILED_CONFIG_1
16 - arc,dim-freq: PWM mode frequence setting (bits [3:0] used)
17 - arc,comp-config: setting for register CONFIG_COMP
18 - arc,filter-config: setting for register FILTER_CONFIG
[all …]
|
| /kernel/linux/linux-5.10/drivers/video/backlight/ |
| D | ktd253-backlight.c | 1 // 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 …]
|
| D | pwm_bl.c | 1 // 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 …]
|
| D | led_bl.c | 1 // 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 …]
|
| D | as3711_bl.c | 1 // 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 …]
|
| D | tps65217_bl.c | 39 rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1, in tps65217_bl_enable()
43 dev_err(tps65217_bl->dev, in tps65217_bl_enable()
48 tps65217_bl->is_enabled = true; in tps65217_bl_enable()
50 dev_dbg(tps65217_bl->dev, "backlight enabled\n"); in tps65217_bl_enable()
59 rc = tps65217_clear_bits(tps65217_bl->tps, in tps65217_bl_disable()
64 dev_err(tps65217_bl->dev, in tps65217_bl_disable()
69 tps65217_bl->is_enabled = false; in tps65217_bl_disable()
71 dev_dbg(tps65217_bl->dev, "backlight disabled\n"); in tps65217_bl_disable()
80 int brightness = backlight_get_brightness(bl); in tps65217_bl_update_status() local
82 if (brightness > 0) { in tps65217_bl_update_status()
[all …]
|
| D | arcxcnn_bl.c | 1 // SPDX-License-Identifier: GPL-2.0-only
22 * @name : Backlight driver name (NULL will use default)
23 * @initial_brightness : initial value of backlight brightness
48 #define ARCXCNN_CMD_OVP_MASK 0x0C /* --- Over Voltage Threshold */
63 #define ARCXCNN_LEDEN_ISETEXT 0x80 /* Full-scale current set extern */
99 ret = i2c_smbus_read_byte_data(lp->client, reg); in arcxcnn_update_field()
101 dev_err(lp->dev, "failed to read 0x%.2x\n", reg); in arcxcnn_update_field()
109 return i2c_smbus_write_byte_data(lp->client, reg, tmp); in arcxcnn_update_field()
112 static int arcxcnn_set_brightness(struct arcxcnn *lp, u32 brightness) in arcxcnn_set_brightness() argument
117 /* lower nibble of brightness goes in upper nibble of LSB register */ in arcxcnn_set_brightness()
[all …]
|
| /kernel/linux/linux-4.19/drivers/video/backlight/ |
| D | as3711_bl.c | 32 int brightness; member
45 switch (su->type) { in to_supply()
55 unsigned int brightness) in as3711_set_brightness_auto_i() argument
58 struct as3711 *as3711 = supply->as3711; in as3711_set_brightness_auto_i()
59 const struct as3711_bl_pdata *pdata = supply->pdata; in as3711_set_brightness_auto_i()
63 if (pdata->su2_auto_curr1) in as3711_set_brightness_auto_i()
64 ret = regmap_write(as3711->regmap, AS3711_CURR1_VALUE, in as3711_set_brightness_auto_i()
65 brightness); in as3711_set_brightness_auto_i()
66 if (!ret && pdata->su2_auto_curr2) in as3711_set_brightness_auto_i()
67 ret = regmap_write(as3711->regmap, AS3711_CURR2_VALUE, in as3711_set_brightness_auto_i()
[all …]
|
| D | pwm_bl.c | 42 int brightness);
44 int brightness);
49 static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness) in pwm_backlight_power_on() argument
53 if (pb->enabled) in pwm_backlight_power_on()
56 err = regulator_enable(pb->power_supply); in pwm_backlight_power_on()
58 dev_err(pb->dev, "failed to enable power supply\n"); in pwm_backlight_power_on()
60 pwm_enable(pb->pwm); in pwm_backlight_power_on()
62 if (pb->post_pwm_on_delay) in pwm_backlight_power_on()
63 msleep(pb->post_pwm_on_delay); in pwm_backlight_power_on()
65 if (pb->enable_gpio) in pwm_backlight_power_on()
[all …]
|
| D | tps65217_bl.c | 39 rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1, in tps65217_bl_enable()
43 dev_err(tps65217_bl->dev, in tps65217_bl_enable()
48 tps65217_bl->is_enabled = true; in tps65217_bl_enable()
50 dev_dbg(tps65217_bl->dev, "backlight enabled\n"); in tps65217_bl_enable()
59 rc = tps65217_clear_bits(tps65217_bl->tps, in tps65217_bl_disable()
64 dev_err(tps65217_bl->dev, in tps65217_bl_disable()
69 tps65217_bl->is_enabled = false; in tps65217_bl_disable()
71 dev_dbg(tps65217_bl->dev, "backlight disabled\n"); in tps65217_bl_disable()
80 int brightness = bl->props.brightness; in tps65217_bl_update_status() local
82 if (bl->props.state & BL_CORE_SUSPENDED) in tps65217_bl_update_status()
[all …]
|
| /kernel/linux/linux-5.10/include/linux/ |
| D | leds.h | 1 /* 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/ |
| D | leds-regulator.c | 1 // 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-4.19/drivers/leds/ |
| D | leds-regulator.c | 2 * leds-regulator.c - LED class driver for regulator driven LEDs.
6 * Inspired by leds-wm8350 driver.
18 #include <linux/leds-regulator.h>
53 enum led_brightness brightness) in led_regulator_get_voltage() argument
55 if (brightness == 0) in led_regulator_get_voltage()
56 return -EINVAL; in led_regulator_get_voltage()
58 return regulator_list_voltage(supply, brightness - 1); in led_regulator_get_voltage()
66 if (led->enabled) in regulator_led_enable()
69 ret = regulator_enable(led->vcc); in regulator_led_enable()
71 dev_err(led->cdev.dev, "Failed to enable vcc: %d\n", ret); in regulator_led_enable()
[all …]
|
| /kernel/linux/linux-4.19/Documentation/ABI/testing/ |
| D | sysfs-class-led | 1 What: /sys/class/leds/<led>/brightness
6 Set the brightness of the LED. Most LEDs don't
7 have hardware brightness support, so will just be turned on for
8 non-zero brightness settings. The value is between 0 and
13 Writing non-zero to this file while trigger is active changes the
14 top brightness trigger is going to use.
21 Maximum brightness level for this LED, default is 255 (LED_FULL).
23 If the LED does not support different brightness levels, this
30 Last hardware set brightness level for this LED. Some LEDs
36 the brightness.
[all …]
|
| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | sysfs-class-led | 1 What: /sys/class/leds/<led>/brightness
6 Set the brightness of the LED.
8 Most LEDs don't have hardware brightness support, so will
9 just be turned on for non-zero brightness settings.
20 led_brightness = brightness * multi_intensity/max_brightness
23 Documentation/leds/leds-class-multicolor.rst.
30 Writing non-zero to this file while trigger is active changes the
31 top brightness trigger is going to use.
40 Maximum brightness level for this LED, default is 255 (LED_FULL).
42 If the LED does not support different brightness levels, this
[all …]
|
| /kernel/linux/linux-5.10/arch/arm/boot/dts/ |
| D | exynos54xx-odroidxu-leds.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
11 #include <dt-bindings/gpio/gpio.h>
15 compatible = "pwm-leds";
20 pwm-names = "pwm1";
23 * so limit its max brightness
25 max-brightness = <127>;
26 linux,default-trigger = "mmc0";
32 pwm-names = "pwm2";
33 max-brightness = <255>;
34 linux,default-trigger = "heartbeat";
[all …]
|
| /kernel/linux/linux-5.10/Documentation/userspace-api/media/v4l/ |
| D | pixfmt-meta-vivid.rst | 1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
3 .. _v4l2-meta-fmt-vivid:
17 It sets Brightness, Saturation, Contrast and Hue, each of which maps to
18 corresponding controls of the vivid driver with respect to the range and default values.
22 .. flat-table:: VIVID Metadata
24 :header-rows: 1
25 :stub-columns: 0
27 * - Field
28 - Description
29 * - u16 brightness;
[all …]
|
| /kernel/linux/linux-4.19/arch/arm/boot/dts/ |
| D | vf610-zii-cfu1.dts | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 /dts-v1/;
15 stdout-path = &uart0;
22 gpio-leds {
23 compatible = "gpio-leds";
24 pinctrl-0 = <&pinctrl_leds_debug>;
25 pinctrl-names = "default";
27 led-debug {
30 linux,default-trigger = "heartbeat";
31 max-brightness = <1>;
[all …]
|