| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | sysfs-class-backlight-driver-adp8870 | 1 See also /sys/class/backlight/<backlight>/ambient_light_level and
2 /sys/class/backlight/<backlight>/ambient_light_zone.
4 What: /sys/class/backlight/<backlight>/<ambient light zone>_max
5 What: /sys/class/backlight/<backlight>/l1_daylight_max
6 What: /sys/class/backlight/<backlight>/l2_bright_max
7 What: /sys/class/backlight/<backlight>/l3_office_max
8 What: /sys/class/backlight/<backlight>/l4_indoor_max
9 What: /sys/class/backlight/<backlight>/l5_dark_max
15 on this <backlight>. Values are between 0 and 127. This file
19 What: /sys/class/backlight/<backlight>/<ambient light zone>_dim
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| D | sysfs-class-backlight-adp8860 | 1 sysfs interface for analog devices adp8860 backlight driver
4 The backlight brightness control operates at three different levels for the
9 See also /sys/class/backlight/<backlight>/ambient_light_level and
10 /sys/class/backlight/<backlight>/ambient_light_zone.
13 What: /sys/class/backlight/<backlight>/l1_daylight_max
14 What: /sys/class/backlight/<backlight>/l2_office_max
15 What: /sys/class/backlight/<backlight>/l3_dark_max
20 (RW) Maximum current setting for the backlight when brightness
27 What: /sys/class/backlight/<backlight>/l1_daylight_dim
28 What: /sys/class/backlight/<backlight>/l2_office_dim
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| D | sysfs-class-backlight-adp5520 | 1 sysfs interface for analog devices adp5520(01) backlight driver
4 The backlight brightness control operates at three different levels for the
8 What: /sys/class/backlight/<backlight>/daylight_max
9 What: /sys/class/backlight/<backlight>/office_max
10 What: /sys/class/backlight/<backlight>/dark_max
15 (RW) Maximum current setting for the backlight when brightness
21 What: /sys/class/backlight/<backlight>/daylight_dim
22 What: /sys/class/backlight/<backlight>/office_dim
23 What: /sys/class/backlight/<backlight>/dark_dim
28 (RW) Dim current setting for the backlight when brightness is at
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| D | sysfs-class-backlight-driver-lm3533 | 1 What: /sys/class/backlight/<backlight>/als_channel
10 0 out_current0 (backlight 0)
11 1 out_current1 (backlight 1)
14 What: /sys/class/backlight/<backlight>/als_en
21 What: /sys/class/backlight/<backlight>/id
26 Get the id of this backlight (0, 1).
28 What: /sys/class/backlight/<backlight>/linear
40 What: /sys/class/backlight/<backlight>/pwm
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| D | sysfs-class-backlight | 1 What: /sys/class/backlight/<backlight>/scale
28 What: /sys/class/backlight/<backlight>/ambient_light_level
49 What: /sys/class/backlight/<backlight>/ambient_light_zone
57 backlight operates.
85 /sys/class/backlight/<backlight>/max_brightness to
86 /sys/class/backlight/<backlight>/brightness.
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| D | sysfs-class-backlight-lm3639 | 1 sysfs interface for Texas Instruments lm3639 backlight + flash led driver chip
4 What: /sys/class/backlight/<backlight>/bled_mode
9 (WO) Write to the backlight mapping mode. The backlight current
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| /kernel/linux/linux-5.10/drivers/gpu/drm/i915/display/ |
| D | intel_panel.c | 498 hw_level = scale(user_level, 0, user_max, 0, panel->backlight.max); in clamp_user_to_hw()
499 hw_level = clamp(hw_level, panel->backlight.min, panel->backlight.max); in clamp_user_to_hw()
510 return scale(hw_level, panel->backlight.min, panel->backlight.max, in scale_hw_to_user()
520 drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0); in intel_panel_compute_brightness()
527 return panel->backlight.max - val + panel->backlight.min; in intel_panel_compute_brightness()
557 if (panel->backlight.combination_mode) { in i9xx_get_backlight()
589 BXT_BLC_PWM_DUTY(panel->backlight.controller)); in bxt_get_backlight()
597 pwm_get_state(panel->backlight.pwm, &state); in pwm_get_backlight()
627 drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0); in i9xx_set_backlight()
629 if (panel->backlight.combination_mode) { in i9xx_set_backlight()
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| D | intel_dp_aux_backlight.c | 90 return connector->panel.backlight.max; in intel_dp_aux_get_backlight()
144 const u8 pn = connector->panel.backlight.pwmgen_bit_count; in intel_dp_aux_set_pwm_freq()
147 freq = dev_priv->vbt.backlight.pwm_freq_hz; in intel_dp_aux_set_pwm_freq()
204 panel->backlight.pwmgen_bit_count) < 0) in intel_dp_aux_enable_backlight()
229 connector->panel.backlight.level); in intel_dp_aux_enable_backlight()
257 freq = i915->vbt.backlight.pwm_freq_hz; in intel_dp_aux_calc_max_backlight()
312 panel->backlight.pwmgen_bit_count = pn; in intel_dp_aux_calc_max_backlight()
324 panel->backlight.max = intel_dp_aux_calc_max_backlight(connector); in intel_dp_aux_setup_backlight()
325 if (!panel->backlight.max) in intel_dp_aux_setup_backlight()
328 panel->backlight.min = 0; in intel_dp_aux_setup_backlight()
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| D | intel_dsi_dcs_backlight.c | 145 dcs_set_backlight(conn_state, panel->backlight.level); in dcs_enable_backlight()
153 panel->backlight.max = PANEL_PWM_MAX_VALUE; in dcs_setup_backlight()
154 panel->backlight.level = PANEL_PWM_MAX_VALUE; in dcs_setup_backlight()
166 if (dev_priv->vbt.backlight.type != INTEL_BACKLIGHT_DSI_DCS) in intel_dsi_dcs_init_backlight_funcs()
172 panel->backlight.setup = dcs_setup_backlight; in intel_dsi_dcs_init_backlight_funcs()
173 panel->backlight.enable = dcs_enable_backlight; in intel_dsi_dcs_init_backlight_funcs()
174 panel->backlight.disable = dcs_disable_backlight; in intel_dsi_dcs_init_backlight_funcs()
175 panel->backlight.set = dcs_set_backlight; in intel_dsi_dcs_init_backlight_funcs()
176 panel->backlight.get = dcs_get_backlight; in intel_dsi_dcs_init_backlight_funcs()
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| /kernel/linux/linux-5.10/drivers/gpu/drm/shmobile/ |
| D | shmob_drm_backlight.c | 20 const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; in shmob_drm_backlight_update()
34 const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; in shmob_drm_backlight_get_brightness()
47 if (scon->backlight == NULL) in shmob_drm_backlight_dpms()
50 scon->backlight->props.power = mode == DRM_MODE_DPMS_ON in shmob_drm_backlight_dpms()
52 backlight_update_status(scon->backlight); in shmob_drm_backlight_dpms()
58 const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; in shmob_drm_backlight_init()
61 struct backlight_device *backlight; in shmob_drm_backlight_init() local
66 backlight = backlight_device_register(bdata->name, dev->dev, scon, in shmob_drm_backlight_init()
68 if (IS_ERR(backlight)) { in shmob_drm_backlight_init()
70 PTR_ERR(backlight)); in shmob_drm_backlight_init()
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| /kernel/linux/linux-5.10/drivers/video/backlight/ |
| D | lv5207lp.c | 37 struct backlight_device *backlight; member
46 static int lv5207lp_backlight_update_status(struct backlight_device *backlight) in lv5207lp_backlight_update_status() argument
48 struct lv5207lp *lv = bl_get_data(backlight); in lv5207lp_backlight_update_status()
49 int brightness = backlight_get_brightness(backlight); in lv5207lp_backlight_update_status()
65 static int lv5207lp_backlight_check_fb(struct backlight_device *backlight, in lv5207lp_backlight_check_fb() argument
68 struct lv5207lp *lv = bl_get_data(backlight); in lv5207lp_backlight_check_fb()
83 struct backlight_device *backlight; in lv5207lp_probe() local
113 backlight = devm_backlight_device_register(&client->dev, in lv5207lp_probe()
116 if (IS_ERR(backlight)) { in lv5207lp_probe()
118 return PTR_ERR(backlight); in lv5207lp_probe()
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| D | bd6107.c | 72 struct backlight_device *backlight; member
82 static int bd6107_backlight_update_status(struct backlight_device *backlight) in bd6107_backlight_update_status() argument
84 struct bd6107 *bd = bl_get_data(backlight); in bd6107_backlight_update_status()
85 int brightness = backlight_get_brightness(backlight); in bd6107_backlight_update_status()
102 static int bd6107_backlight_check_fb(struct backlight_device *backlight, in bd6107_backlight_check_fb() argument
105 struct bd6107 *bd = bl_get_data(backlight); in bd6107_backlight_check_fb()
120 struct backlight_device *backlight; in bd6107_probe() local
163 backlight = devm_backlight_device_register(&client->dev, in bd6107_probe()
167 if (IS_ERR(backlight)) { in bd6107_probe()
169 return PTR_ERR(backlight); in bd6107_probe()
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| D | Kconfig | 17 (contrast and applying power to the LCD (not to the backlight!)).
147 backlight. This includes support for brightness and power.
158 This provides a backlight control internal to the Atmel LCDC
160 so it controls the backlight brightness, select this option to
161 export this as a PWM-based backlight control.
170 If you have a LCD backlight connected to the BRIGHT output of
177 tristate "iPAQ microcontroller backlight driver"
181 Say y to enable the backlight driver for Compaq iPAQ handheld
189 Say y to enabled the backlight driver for the Kinetic KTD253
190 which is a 1-wire GPIO-controlled backlight found in some mobile
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| /kernel/linux/linux-5.10/Documentation/ABI/stable/ |
| D | sysfs-class-backlight | 1 What: /sys/class/backlight/<backlight>/bl_power
12 What: /sys/class/backlight/<backlight>/brightness
17 Control the brightness for this <backlight>. Values
23 What: /sys/class/backlight/<backlight>/actual_brightness
31 What: /sys/class/backlight/<backlight>/max_brightness
36 Maximum brightness for <backlight>.
39 What: /sys/class/backlight/<backlight>/type
44 The type of interface controlled by <backlight>.
49 In the general case, when multiple backlight
55 backlight state. Platform interfaces are mostly a
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| /kernel/linux/linux-5.10/drivers/gpu/drm/tilcdc/ |
| D | tilcdc_panel.c | 28 struct backlight_device *backlight; member
47 struct backlight_device *backlight = panel_encoder->mod->backlight; in panel_encoder_dpms() local
50 if (backlight) { in panel_encoder_dpms()
51 backlight->props.power = mode == DRM_MODE_DPMS_ON ? in panel_encoder_dpms()
53 backlight_update_status(backlight); in panel_encoder_dpms()
307 struct backlight_device *backlight; in panel_probe() local
323 backlight = devm_of_find_backlight(&pdev->dev); in panel_probe()
324 if (IS_ERR(backlight)) in panel_probe()
325 return PTR_ERR(backlight); in panel_probe()
326 panel_mod->backlight = backlight; in panel_probe()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/mfd/ |
| D | sky81452.txt | 8 - backlight : container node for backlight following the binding
9 in leds/backlight/sky81452-backlight.txt
19 backlight {
20 compatible = "skyworks,sky81452-backlight";
21 name = "pwm-backlight";
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| D | ti-lmu.txt | 47 - backlight: All LMU devices have backlight child nodes.
60 [1] ../leds/backlight/ti-lmu-backlight.txt
106 backlight {
107 compatible = "ti,lm3631-backlight";
148 backlight {
149 compatible = "ti,lm3632-backlight";
152 pwm-names = "lmu-backlight";
167 backlight {
168 compatible = "ti,lm3633-backlight";
212 backlight {
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| /kernel/linux/linux-5.10/drivers/hid/ |
| D | hid-picolcd_backlight.c | 77 data->backlight = bdev; in picolcd_init_backlight()
84 struct backlight_device *bdev = data->backlight; in picolcd_exit_backlight()
86 data->backlight = NULL; in picolcd_exit_backlight()
92 if (!data->backlight) in picolcd_resume_backlight()
94 return picolcd_set_brightness(data->backlight); in picolcd_resume_backlight()
101 if (!data->backlight) in picolcd_suspend_backlight()
104 data->backlight->props.power = FB_BLANK_POWERDOWN; in picolcd_suspend_backlight()
105 picolcd_set_brightness(data->backlight); in picolcd_suspend_backlight()
106 data->lcd_power = data->backlight->props.power = bl_power; in picolcd_suspend_backlight()
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| /kernel/linux/linux-5.10/drivers/media/usb/gspca/gl860/ |
| D | gl860-ov2640.c | 175 sd->vcur.backlight = 32; in ov2640_init_settings()
186 sd->vmax.backlight = 64; in ov2640_init_settings()
239 sd->vold.backlight = -1; in ov2640_init_pre_alt()
339 s32 backlight = sd->vcur.backlight; in ov2640_camera_settings() local
350 if (backlight != sd->vold.backlight) { in ov2640_camera_settings()
352 if (backlight < 0 || backlight > sd->vmax.backlight) in ov2640_camera_settings()
353 backlight = 0; in ov2640_camera_settings()
357 ctrl_out(gspca_dev, 0x40, 1, 0x601e + backlight , 0x0024, in ov2640_camera_settings()
359 ctrl_out(gspca_dev, 0x40, 1, 0x601e + backlight - 10, 0x0025, in ov2640_camera_settings()
457 if (backlight != sd->vold.backlight) { in ov2640_camera_settings()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/backlight/ |
| 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'.
22 backlight {
23 compatible = "skyworks,sky81452-backlight";
24 name = "pwm-backlight";
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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 {
14 backlight-2 {
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| D | zii,rave-sp-backlight.txt | 3 RAVE SP backlight device is a "MFD cell" device corresponding to
4 backlight functionality of RAVE Supervisory Processor. It is expected
11 - compatible: Should be "zii,rave-sp-backlight"
19 backlight {
20 compatible = "zii,rave-sp-backlight";
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| /kernel/linux/linux-5.10/Documentation/gpu/ |
| D | backlight.rst | 5 .. kernel-doc:: drivers/video/backlight/backlight.c
8 .. kernel-doc:: include/linux/backlight.h
11 .. kernel-doc:: drivers/video/backlight/backlight.c
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| /kernel/linux/linux-5.10/drivers/gpu/drm/ |
| D | drm_panel.c | 164 ret = backlight_enable(panel->backlight); in drm_panel_enable()
190 ret = backlight_disable(panel->backlight); in drm_panel_disable()
331 struct backlight_device *backlight; in drm_panel_of_backlight() local
336 backlight = devm_of_find_backlight(panel->dev); in drm_panel_of_backlight()
338 if (IS_ERR(backlight)) in drm_panel_of_backlight()
339 return PTR_ERR(backlight); in drm_panel_of_backlight()
341 panel->backlight = backlight; in drm_panel_of_backlight()
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| /kernel/linux/linux-5.10/arch/arm/boot/dts/ |
| D | at91sam9x5dm.dtsi | 12 backlight: backlight { label
13 compatible = "pwm-backlight";
23 regulator-name = "backlight-power-supply";
31 backlight = <&backlight>;
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