| /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
10 "pwms" property (see PWM binding[0])
11 - enable-gpios: contains a single GPIO specifier for the GPIO which enables
12 and disables the backlight (see GPIO binding[1])
13 - post-pwm-on-delay-ms: Delay in ms between setting an initial (non-zero) PWM
14 and enabling the backlight using GPIO.
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| D | sky81452-backlight.txt | 1 SKY81452-backlight bindings
4 - compatible : Must be "skyworks,sky81452-backlight"
7 - name : Name of backlight device. Default is 'lcd-backlight'.
8 - gpios : GPIO to use to EN pin.
10 - led-sources : List of enabled channels from 0 to 5.
12 - skyworks,ignore-pwm : Ignore both PWM input
13 - skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
14 - skyworks,phase-shift : Enable phase shift mode
15 - skyworks,short-detection-threshold-volt
17 - skyworks,current-limit-mA
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| D | 88pm860x.txt | 1 88pm860x-backlight bindings
4 - marvell,88pm860x-iset: Current supplies on backlight device.
5 - marvell,88pm860x-pwm: PWM frequency on backlight device.
10 backlight-0 {
11 marvell,88pm860x-iset = <4>;
12 marvell,88pm860x-pwm = <3>;
14 backlight-2 {
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| /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
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| D | sky81452-backlight.txt | 1 SKY81452-backlight bindings
4 - compatible : Must be "skyworks,sky81452-backlight"
7 - name : Name of backlight device. Default is 'lcd-backlight'.
8 - gpios : GPIO to use to EN pin.
10 - led-sources : List of enabled channels from 0 to 5.
12 - skyworks,ignore-pwm : Ignore both PWM input
13 - skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming.
14 - skyworks,phase-shift : Enable phase shift mode
15 - skyworks,short-detection-threshold-volt
17 - skyworks,current-limit-mA
[all …]
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| D | 88pm860x.txt | 1 88pm860x-backlight bindings
4 - marvell,88pm860x-iset: Current supplies on backlight device.
5 - marvell,88pm860x-pwm: PWM frequency on backlight device.
10 backlight-0 {
11 marvell,88pm860x-iset = <4>;
12 marvell,88pm860x-pwm = <3>;
14 backlight-2 {
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| /kernel/linux/linux-4.19/Documentation/ABI/testing/ |
| D | sysfs-class-backlight-driver-lm3533 | 1 What: /sys/class/backlight/<backlight>/als_channel
7 ALS-current-control mode (0, 1), where
9 0 - out_current0 (backlight 0)
10 1 - out_current1 (backlight 1)
12 What: /sys/class/backlight/<backlight>/als_en
17 Enable ALS-current-control mode (0, 1).
19 What: /sys/class/backlight/<backlight>/id
24 Get the id of this backlight (0, 1).
26 What: /sys/class/backlight/<backlight>/linear
31 Set the brightness-mapping mode (0, 1), where
[all …]
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/pwm/ |
| D | pwm.txt | 1 Specifying PWM information for devices
4 1) PWM user nodes
5 -----------------
7 PWM users should specify a list of PWM devices that they want to use
8 with a property containing a 'pwm-list':
10 pwm-list ::= <single-pwm> [pwm-list]
11 single-pwm ::= <pwm-phandle> <pwm-specifier>
12 pwm-phandle : phandle to PWM controller node
13 pwm-specifier : array of #pwm-cells specifying the given PWM
16 PWM properties should be named "pwms". The exact meaning of each pwms
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| D | pwm-lp3943.txt | 1 TI/National Semiconductor LP3943 PWM controller
4 - compatible: "ti,lp3943-pwm"
5 - #pwm-cells: Should be 2. See pwm.yaml in this directory for a
9 - ti,pwm0 or ti,pwm1: Output pin number(s) for PWM channel 0 or 1.
17 PWM 0 is for RGB LED brightness control
18 PWM 1 is for brightness control of LP8557 backlight device
26 * PWM 0 : output 8, 9 and 10
27 * PWM 1 : output 15
29 pwm3943: pwm {
30 compatible = "ti,lp3943-pwm";
[all …]
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| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | sysfs-class-backlight-driver-lm3533 | 1 What: /sys/class/backlight/<backlight>/als_channel
7 ALS-current-control mode (0, 1), where:
10 0 out_current0 (backlight 0)
11 1 out_current1 (backlight 1)
14 What: /sys/class/backlight/<backlight>/als_en
19 Enable ALS-current-control mode (0, 1).
21 What: /sys/class/backlight/<backlight>/id
26 Get the id of this backlight (0, 1).
28 What: /sys/class/backlight/<backlight>/linear
33 Set the brightness-mapping mode (0, 1), where:
[all …]
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/pwm/ |
| D | pwm.txt | 1 Specifying PWM information for devices
4 1) PWM user nodes
5 -----------------
7 PWM users should specify a list of PWM devices that they want to use
8 with a property containing a 'pwm-list':
10 pwm-list ::= <single-pwm> [pwm-list]
11 single-pwm ::= <pwm-phandle> <pwm-specifier>
12 pwm-phandle : phandle to PWM controller node
13 pwm-specifier : array of #pwm-cells specifying the given PWM
16 PWM properties should be named "pwms". The exact meaning of each pwms
[all …]
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| D | pwm-lp3943.txt | 1 TI/National Semiconductor LP3943 PWM controller
4 - compatible: "ti,lp3943-pwm"
5 - #pwm-cells: Should be 2. See pwm.txt in this directory for a
9 - ti,pwm0 or ti,pwm1: Output pin number(s) for PWM channel 0 or 1.
17 PWM 0 is for RGB LED brightness control
18 PWM 1 is for brightness control of LP8557 backlight device
26 * PWM 0 : output 8, 9 and 10
27 * PWM 1 : output 15
29 pwm3943: pwm {
30 compatible = "ti,lp3943-pwm";
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| /kernel/linux/linux-4.19/drivers/gpu/drm/i915/ |
| D | intel_panel.c | 2 * Copyright © 2006-2010 Intel Corporation
28 * Chris Wilson <chris@chris-wilson.co.uk>
35 #include <linux/pwm.h>
50 * intel_find_panel_downclock - find the reduced downclock for LVDS in EDID
66 temp_downclock = fixed_mode->clock; in intel_find_panel_downclock()
69 list_for_each_entry(scan, &connector->probed_modes, head) { in intel_find_panel_downclock()
77 if (scan->hdisplay == fixed_mode->hdisplay && in intel_find_panel_downclock()
78 scan->hsync_start == fixed_mode->hsync_start && in intel_find_panel_downclock()
79 scan->hsync_end == fixed_mode->hsync_end && in intel_find_panel_downclock()
80 scan->htotal == fixed_mode->htotal && in intel_find_panel_downclock()
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| /kernel/linux/linux-5.10/drivers/video/backlight/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # Backlight & LCD drivers configuration
6 menu "Backlight & LCD device support"
14 This framework adds support for low-level control of LCD.
15 Some framebuffer devices connect to platform-specific LCD modules
16 in order to have a platform-specific way to control the flat panel
17 (contrast and applying power to the LCD (not to the backlight!)).
90 This driver provides a platform-device registered LCD power
94 tristate "Sharp SL-6000 LCD Driver"
97 If you have an Sharp SL-6000 Zaurus say Y to enable a driver
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| D | lp8788_bl.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * TI LP8788 MFD - backlight driver
10 #include <linux/backlight.h>
15 #include <linux/pwm.h>
32 #define DEFAULT_BL_NAME "lcd-backlight"
48 struct pwm_device *pwm; member
73 struct lp8788_backlight_platform_data *pdata = bl->pdata; in lp8788_backlight_configure()
83 cfg->bl_mode = pdata->bl_mode; in lp8788_backlight_configure()
84 cfg->dim_mode = pdata->dim_mode; in lp8788_backlight_configure()
85 cfg->full_scale = pdata->full_scale; in lp8788_backlight_configure()
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| D | pwm_bl.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Simple PWM based backlight control, board code has to setup
4 * 1) pin configuration so PWM waveforms can output
15 #include <linux/backlight.h>
17 #include <linux/pwm.h>
23 struct pwm_device *pwm; member
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()
[all …]
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| /kernel/linux/linux-4.19/drivers/video/backlight/ |
| D | Kconfig | 2 # Backlight & LCD drivers configuration
6 bool "Backlight & LCD device support"
9 backlight and the LCD panel on some platforms, for example on PDAs.
20 This framework adds support for low-level control of LCD.
21 Some framebuffer devices connect to platform-specific LCD modules
22 in order to have a platform-specific way to control the flat panel
23 (contrast and applying power to the LCD (not to the backlight!)).
96 This driver provides a platform-device registered LCD power
100 tristate "Sharp SL-6000 LCD Driver"
103 If you have an Sharp SL-6000 Zaurus say Y to enable a driver
[all …]
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| D | pwm_bl.c | 2 * linux/drivers/video/backlight/pwm_bl.c
4 * simple PWM based backlight control, board code has to setup
5 * 1) pin configuration so PWM waveforms can output
21 #include <linux/backlight.h>
23 #include <linux/pwm.h>
29 struct pwm_device *pwm; member
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()
[all …]
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| D | lp8788_bl.c | 2 * TI LP8788 MFD - backlight driver
14 #include <linux/backlight.h>
19 #include <linux/pwm.h>
36 #define DEFAULT_BL_NAME "lcd-backlight"
52 struct pwm_device *pwm; member
77 struct lp8788_backlight_platform_data *pdata = bl->pdata; in lp8788_backlight_configure()
87 cfg->bl_mode = pdata->bl_mode; in lp8788_backlight_configure()
88 cfg->dim_mode = pdata->dim_mode; in lp8788_backlight_configure()
89 cfg->full_scale = pdata->full_scale; in lp8788_backlight_configure()
90 cfg->rise_time = pdata->rise_time; in lp8788_backlight_configure()
[all …]
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| /kernel/linux/linux-5.10/drivers/gpu/drm/i915/display/ |
| D | intel_panel.c | 2 * Copyright © 2006-2010 Intel Corporation
28 * Chris Wilson <chris@chris-wilson.co.uk>
35 #include <linux/pwm.h>
59 downclock_mode->clock < fixed_mode->clock; in is_downclock_mode()
66 struct drm_i915_private *dev_priv = to_i915(connector->base.dev); in intel_panel_edid_downclock_mode()
69 int best_clock = fixed_mode->clock; in intel_panel_edid_downclock_mode()
71 list_for_each_entry(scan, &connector->base.probed_modes, head) { in intel_panel_edid_downclock_mode()
80 scan->clock < best_clock) { in intel_panel_edid_downclock_mode()
85 best_clock = scan->clock; in intel_panel_edid_downclock_mode()
93 downclock_mode = drm_mode_duplicate(&dev_priv->drm, best_mode); in intel_panel_edid_downclock_mode()
[all …]
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| /kernel/linux/linux-4.19/arch/arm/mach-s3c64xx/ |
| D | dev-backlight.c | 1 // SPDX-License-Identifier: GPL-2.0
6 // Common infrastructure for PWM Backlight for Samsung boards
15 #include <plat/gpio-cfg.h>
17 #include "backlight.h"
27 struct platform_pwm_backlight_data *pdata = dev->platform_data; in samsung_bl_init()
30 struct samsung_bl_gpio_info *bl_gpio_info = drvdata->gpio_info; in samsung_bl_init()
32 ret = gpio_request(bl_gpio_info->no, "Backlight"); in samsung_bl_init()
34 printk(KERN_ERR "failed to request GPIO for LCD Backlight\n"); in samsung_bl_init()
38 /* Configure GPIO pin with specific GPIO function for PWM timer */ in samsung_bl_init()
39 s3c_gpio_cfgpin(bl_gpio_info->no, bl_gpio_info->func); in samsung_bl_init()
[all …]
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| /kernel/linux/linux-5.10/arch/arm/mach-s3c/ |
| D | dev-backlight-s3c64xx.c | 1 // SPDX-License-Identifier: GPL-2.0
6 // Common infrastructure for PWM Backlight for Samsung boards
15 #include "gpio-cfg.h"
17 #include "backlight-s3c64xx.h"
27 struct platform_pwm_backlight_data *pdata = dev->platform_data; in samsung_bl_init()
30 struct samsung_bl_gpio_info *bl_gpio_info = drvdata->gpio_info; in samsung_bl_init()
32 ret = gpio_request(bl_gpio_info->no, "Backlight"); in samsung_bl_init()
34 printk(KERN_ERR "failed to request GPIO for LCD Backlight\n"); in samsung_bl_init()
38 /* Configure GPIO pin with specific GPIO function for PWM timer */ in samsung_bl_init()
39 s3c_gpio_cfgpin(bl_gpio_info->no, bl_gpio_info->func); in samsung_bl_init()
[all …]
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| /kernel/linux/linux-5.10/include/linux/platform_data/ |
| D | lp855x.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * LP855x Backlight Driver
15 /* Enable backlight. Only valid when BRT_MODE=10(I2C only) */
22 /* DEVICE CONTROL register - LP8550 */
27 /* DEVICE CONTROL register - LP8551 */
31 /* DEVICE CONTROL register - LP8552 */
35 /* DEVICE CONTROL register - LP8553 */
39 /* CONFIG register - LP8555 */
43 when the backlight turns on */
50 /* DEVICE CONTROL register - LP8556 */
[all …]
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| /kernel/linux/linux-4.19/include/linux/platform_data/ |
| D | lp855x.h | 2 * LP855x Backlight Driver
19 /* Enable backlight. Only valid when BRT_MODE=10(I2C only) */
26 /* DEVICE CONTROL register - LP8550 */
31 /* DEVICE CONTROL register - LP8551 */
35 /* DEVICE CONTROL register - LP8552 */
39 /* DEVICE CONTROL register - LP8553 */
43 /* CONFIG register - LP8555 */
47 when the backlight turns on */
54 /* DEVICE CONTROL register - LP8556 */
63 /* CONFIG register - LP8557 */
[all …]
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| /kernel/linux/linux-5.10/include/linux/mfd/ |
| D | lp8788.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
15 #include <linux/pwm.h>
18 #define LP8788_DEV_BUCK "lp8788-buck"
19 #define LP8788_DEV_DLDO "lp8788-dldo"
20 #define LP8788_DEV_ALDO "lp8788-aldo"
21 #define LP8788_DEV_CHARGER "lp8788-charger"
22 #define LP8788_DEV_RTC "lp8788-rtc"
23 #define LP8788_DEV_BACKLIGHT "lp8788-backlight"
24 #define LP8788_DEV_VIBRATOR "lp8788-vibrator"
25 #define LP8788_DEV_KEYLED "lp8788-keyled"
[all …]
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