| /openbmc/linux/arch/powerpc/platforms/powermac/ |
| H A D | backlight.c | 108 int brightness; in pmac_backlight_key_worker() local
112 brightness = props->brightness + in pmac_backlight_key_worker()
116 if (brightness < 0) in pmac_backlight_key_worker()
117 brightness = 0; in pmac_backlight_key_worker()
119 brightness = props->max_brightness; in pmac_backlight_key_worker()
121 props->brightness = brightness; in pmac_backlight_key_worker()
149 props->brightness = brightness * in __pmac_backlight_set_legacy_brightness()
154 props->brightness = props->max_brightness; in __pmac_backlight_set_legacy_brightness()
155 else if (props->brightness < 0) in __pmac_backlight_set_legacy_brightness()
156 props->brightness = 0; in __pmac_backlight_set_legacy_brightness()
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| /openbmc/linux/drivers/video/backlight/ |
| H A D | aat2870_bl.c | 25 int brightness; /* current brightness */ member
29 int brightness) in aat2870_brightness() argument
34 val = brightness * (aat2870_bl->max_current - 1); in aat2870_brightness()
62 int brightness = backlight_get_brightness(bd); in aat2870_bl_update_status() local
65 if ((brightness < 0) || (bd->props.max_brightness < brightness)) { in aat2870_bl_update_status()
78 if (brightness == 0) { in aat2870_bl_update_status()
82 } else if (aat2870_bl->brightness == 0) { in aat2870_bl_update_status()
88 aat2870_bl->brightness = brightness; in aat2870_bl_update_status()
165 aat2870_bl->brightness = 0; in aat2870_bl_probe()
167 bd->props.brightness = bd->props.max_brightness; in aat2870_bl_probe()
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| H A D | pcf50633-backlight.c | 22 unsigned int brightness; member
58 else if (bl->props.brightness < pcf_bl->brightness_limit) in pcf50633_bl_update_status()
59 new_brightness = bl->props.brightness; in pcf50633_bl_update_status()
64 if (pcf_bl->brightness == new_brightness) in pcf50633_bl_update_status()
70 if (!pcf_bl->brightness) in pcf50633_bl_update_status()
76 pcf_bl->brightness = new_brightness; in pcf50633_bl_update_status()
85 return pcf_bl->brightness; in pcf50633_bl_get_brightness()
112 bl_props.brightness = pdata->default_brightness; in pcf50633_bl_probe()
115 bl_props.brightness = 0x3f; in pcf50633_bl_probe()
136 pcf_bl->brightness = pcf_bl->bl->props.brightness + 1; in pcf50633_bl_probe()
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| H A D | pandora_bl.c | 42 int brightness = bl->props.brightness; in pandora_backlight_update_status() local
47 brightness = 0; in pandora_backlight_update_status()
49 brightness = 0; in pandora_backlight_update_status()
51 brightness = 0; in pandora_backlight_update_status()
53 if ((unsigned int)brightness > MAX_USER_VALUE) in pandora_backlight_update_status()
54 brightness = MAX_USER_VALUE; in pandora_backlight_update_status()
56 if (brightness == 0) { in pandora_backlight_update_status()
93 twl_i2c_write_u8(TWL_MODULE_PWM, MIN_VALUE + brightness, TWL_PWM0_OFF); in pandora_backlight_update_status()
96 if (brightness != 0) in pandora_backlight_update_status()
138 bl->props.brightness = MAX_USER_VALUE; in pandora_backlight_probe()
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| H A D | as3711_bl.c | 29 int brightness; member
62 brightness); in as3711_set_brightness_auto_i()
65 brightness); in as3711_set_brightness_auto_i()
68 brightness); in as3711_set_brightness_auto_i()
77 if (brightness > 31) in as3711_set_brightness_v()
107 int brightness; in as3711_bl_update_status() local
127 if (brightness) { in as3711_bl_update_status()
141 brightness); in as3711_bl_update_status()
145 brightness); in as3711_bl_update_status()
149 brightness); in as3711_bl_update_status()
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| H A D | mt6370-backlight.c | 76 int brightness = backlight_get_brightness(bl_dev); in mt6370_bl_update_status() local
81 if (brightness) { in mt6370_bl_update_status()
91 gpiod_set_value(priv->enable_gpio, !!brightness); in mt6370_bl_update_status()
93 enable_val = brightness ? MT6370_BL_EN_MASK : 0; in mt6370_bl_update_status()
103 int brightness, ret; in mt6370_bl_get_brightness() local
120 return brightness + 1; in mt6370_bl_get_brightness()
134 u32 brightness, ovp_uV, ocp_uA; in mt6370_init_backlight_properties() local
199 brightness = priv->def_max_brightness; in mt6370_init_backlight_properties()
205 brightness = props->max_brightness; in mt6370_init_backlight_properties()
207 props->brightness = min_t(u32, brightness, props->max_brightness); in mt6370_init_backlight_properties()
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| H A D | ktd253-backlight.c | 78 int brightness = backlight_get_brightness(bl); in ktd253_backlight_update_status() local
83 dev_dbg(ktd253->dev, "new brightness/ratio: %d/32\n", brightness); in ktd253_backlight_update_status()
85 target_ratio = brightness; in ktd253_backlight_update_status()
149 u32 brightness; in ktd253_backlight_probe() local
166 ret = device_property_read_u32(dev, "default-brightness", &brightness); in ktd253_backlight_probe()
168 brightness = KTD253_DEFAULT_RATIO; in ktd253_backlight_probe()
169 if (brightness > max_brightness) { in ktd253_backlight_probe()
172 brightness = max_brightness; in ktd253_backlight_probe()
191 if (brightness) { in ktd253_backlight_probe()
192 bl->props.brightness = brightness; in ktd253_backlight_probe()
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| H A D | da9052_bl.c | 40 uint brightness; member
72 if (wleds->brightness) { in da9052_adjust_wled_brightness()
74 wleds->brightness); in da9052_adjust_wled_brightness()
84 int brightness = bl->props.brightness; in da9052_backlight_update_status() local
87 wleds->brightness = brightness; in da9052_backlight_update_status()
97 return wleds->brightness; in da9052_backlight_get_brightness()
116 wleds->brightness = 0; in da9052_backlight_probe()
133 bl->props.brightness = 0; in da9052_backlight_probe()
144 wleds->brightness = 0; in da9052_backlight_remove()
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| H A D | rt4831-backlight.c | 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()
94 u32 brightness, ocp_uA; in rt4831_parse_backlight_properties() local
99 ret = device_property_read_u32(dev, "max-brightness", &brightness); in rt4831_parse_backlight_properties()
101 brightness = RT4831_BLMAX_BRIGHTNESS; in rt4831_parse_backlight_properties()
107 brightness = bl_props->max_brightness; in rt4831_parse_backlight_properties()
109 bl_props->brightness = min_t(u32, brightness, bl_props->max_brightness); in rt4831_parse_backlight_properties()
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| H A D | lm3639_bl.c | 116 return bl->props.brightness; in lm3639_bled_update_status()
127 if (!bl->props.brightness) in lm3639_bled_update_status()
134 return bl->props.brightness; in lm3639_bled_update_status()
137 return bl->props.brightness; in lm3639_bled_update_status()
153 return bl->props.brightness; in lm3639_bled_get_brightness()
165 bl->props.brightness = reg_val; in lm3639_bled_get_brightness()
167 return bl->props.brightness; in lm3639_bled_get_brightness()
170 return bl->props.brightness; in lm3639_bled_get_brightness()
220 enum led_brightness brightness) in lm3639_torch_brightness_set() argument
235 if (!brightness) { in lm3639_torch_brightness_set()
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| H A D | ams369fg06.c | 233 if ((brightness >= 0) && (brightness <= 50)) in ams369fg06_gamma_ctl()
235 else if ((brightness > 50) && (brightness <= 100)) in ams369fg06_gamma_ctl()
237 else if ((brightness > 100) && (brightness <= 150)) in ams369fg06_gamma_ctl()
239 else if ((brightness > 150) && (brightness <= 200)) in ams369fg06_gamma_ctl()
241 else if ((brightness > 200) && (brightness <= 255)) in ams369fg06_gamma_ctl()
341 ret = ams369fg06_gamma_ctl(lcd, bd->props.brightness); in ams369fg06_power_on()
411 int brightness = bd->props.brightness; in ams369fg06_set_brightness() local
414 if (brightness < MIN_BRIGHTNESS || in ams369fg06_set_brightness()
415 brightness > bd->props.max_brightness) { in ams369fg06_set_brightness()
421 ret = ams369fg06_gamma_ctl(lcd, bd->props.brightness); in ams369fg06_set_brightness()
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| H A D | da903x_bl.c | 40 static int da903x_backlight_set(struct backlight_device *bl, int brightness) in da903x_backlight_set() argument
50 brightness, 0x7f); in da903x_backlight_set()
54 if (data->current_brightness && brightness == 0) in da903x_backlight_set()
59 if (data->current_brightness == 0 && brightness) in da903x_backlight_set()
65 val = DA9030_WLED_TRIM(brightness); in da903x_backlight_set()
66 val |= brightness ? DA9030_WLED_CP_EN : 0; in da903x_backlight_set()
74 data->current_brightness = brightness; in da903x_backlight_set()
141 bl->props.brightness = max_brightness; in da903x_backlight_probe()
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| H A D | ep93xx_bl.c | 23 int brightness; member
26 static int ep93xxbl_set(struct backlight_device *bl, int brightness) in ep93xxbl_set() argument
30 writel((brightness << 8) | EP93XX_MAX_COUNT, ep93xxbl->mmio); in ep93xxbl_set()
32 ep93xxbl->brightness = brightness; in ep93xxbl_set()
46 return ep93xxbl->brightness; in ep93xxbl_get_brightness()
91 bl->props.brightness = EP93XX_DEF_BRIGHT; in ep93xxbl_probe()
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| /openbmc/linux/Documentation/devicetree/bindings/leds/backlight/ |
| H A D | pwm-backlight.yaml | 42 brightness-levels:
44 Array of distinct brightness levels. Typically these are in the range
51 default-brightness-level:
53 The default brightness level (index into the array defined by the
54 "brightness-levels" property).
65 default-brightness-level: [brightness-levels]
66 num-interpolated-steps: [brightness-levels]
80 brightness-levels = <0 4 8 16 32 64 128 255>;
81 default-brightness-level = <6>;
95 brightness-levels = <0 2048 4096 8192 16384 65535>;
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| H A D | led-backlight.yaml | 29 brightness-levels:
31 Array of distinct brightness levels. The levels must be in the range
33 backlight brightness level into a LED brightness level. If it is not
37 default-brightness-level:
39 The default brightness level (index into the array defined by the
40 "brightness-levels" property).
55 brightness-levels = <0 4 8 16 32 64 128 255>;
56 default-brightness-level = <6>;
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| /openbmc/linux/drivers/hid/ |
| H A D | hid-lg-g15.c | 104 brightness = g15->leds[g15_led->led].brightness; in lg_g15_led_get()
107 return brightness; in lg_g15_led_get()
134 val = brightness; in lg_g15_led_set()
151 g15_led->brightness = brightness; in lg_g15_led_set()
177 brightness[i] = g15->leds[i].brightness; in lg_g15_leds_changed_work()
188 brightness[i]); in lg_g15_leds_changed_work()
248 g15_led->brightness = brightness; in lg_g510_kbd_led_write()
391 brightness = g15->leds[g15_led->led].brightness; in lg_g510_mkey_led_get()
394 return brightness; in lg_g510_mkey_led_get()
414 val = brightness; in lg_g510_mkey_led_set()
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| /openbmc/linux/drivers/net/wireless/ralink/rt2x00/ |
| H A D | rt2x00leds.c | 22 unsigned int brightness; in rt2x00leds_led_quality() local
55 brightness = ((LED_FULL / 6) * rssi) + 1; in rt2x00leds_led_quality()
56 if (brightness != led->led_dev.brightness) { in rt2x00leds_led_quality()
57 led->led_dev.brightness_set(&led->led_dev, brightness); in rt2x00leds_led_quality()
58 led->led_dev.brightness = brightness; in rt2x00leds_led_quality()
64 unsigned int brightness = enabled ? LED_FULL : LED_OFF; in rt2x00led_led_simple() local
69 led->led_dev.brightness_set(&led->led_dev, brightness); in rt2x00led_led_simple()
70 led->led_dev.brightness = brightness; in rt2x00led_led_simple()
99 led->led_dev.brightness = LED_OFF; in rt2x00leds_register_led()
203 led->led_dev.brightness = LED_OFF; in rt2x00leds_suspend_led()
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| /openbmc/linux/Documentation/devicetree/bindings/leds/ |
| H A D | leds-trigger-pattern.txt | 3 The pattern is given by a series of tuples, of brightness and duration (ms).
4 The LED is expected to traverse the series and each brightness value for the
5 specified duration. Duration of 0 means brightness should immediately change to
10 change of brightness, i.e. the subsequent brightness will be applied without
22 LED brightness
31 2. To make the LED go instantly from one brightness value to another, we should
32 use zero-time lengths (the brightness must be same as the previous tuple's). So
39 It will make the LED stay off for one second, then stay at max brightness for
42 LED brightness
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| /openbmc/linux/Documentation/leds/ |
| H A D | leds-lm3556.rst | 35 #echo 0 > /sys/class/leds/flash/brightness
39 #echo 1 > /sys/class/leds/flash/brightness
45 #echo 16 > /sys/class/leds/flash/brightness
62 #echo 0 > /sys/class/leds/torch/brightness
66 #echo 1 > /sys/class/leds/torch/brightness
72 #echo 8 > /sys/class/leds/torch/brightness
98 Indicator brightness can be controlled through
99 sys/class/leds/indicator/brightness file.
105 #echo 0 > /sys/class/leds/indicator/brightness
109 #echo 1 > /sys/class/leds/indicator/brightness
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| H A D | leds-class-multicolor.rst | 12 via brightness file.
35 -rw-r--r-- 1 root root 4096 Oct 19 16:16 brightness
42 The brightness level for each LED is calculated based on the color LED
44 the requested brightness.
46 led_brightness = brightness * multi_intensity/max_brightness
49 A user first writes the multi_intensity file with the brightness levels
69 global 'brightness' control. Assuming a max_brightness of 255 the user
71 128 to the global brightness file then the values written to each LED will be
76 echo 128 > /sys/class/leds/multicolor:status/brightness
82 Reading the global brightness file will return the current brightness value of
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| /openbmc/linux/Documentation/ABI/testing/ |
| H A 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
31 top brightness trigger is going to use.
42 If the LED does not support different brightness levels, this
49 Last hardware set brightness level for this LED. Some LEDs
55 the brightness.
57 Reading this file will return the last brightness level set
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| H A D | sysfs-class-backlight | 6 Description of the scale of the brightness curve.
8 The human eye senses brightness approximately logarithmically,
9 hence linear changes in brightness are perceived as being
12 backlights with a linear brightness curve.
17 The scale of the brightness curve is unknown.
20 The brightness changes linearly with each step. Brightness
43 brightness).
86 /sys/class/backlight/<backlight>/brightness.
93 Control the maximum brightness for <ambient light zone>
95 will also show the brightness level stored for this
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| /openbmc/linux/drivers/leds/ |
| H A D | leds-pwm.c | 42 enum led_brightness brightness) in led_pwm_set() argument
49 duty *= brightness; in led_pwm_set()
70 led_data->cdev.brightness = LED_OFF; in led_pwm_add()
101 led_data->cdev.brightness = led->max_brightness; in led_pwm_add()
105 uint64_t brightness; in led_pwm_add() local
107 brightness = led->max_brightness; in led_pwm_add()
108 brightness *= led_data->pwmstate.duty_cycle; in led_pwm_add()
109 do_div(brightness, led_data->pwmstate.period); in led_pwm_add()
110 led_data->cdev.brightness = brightness; in led_pwm_add()
123 ret = led_pwm_set(&led_data->cdev, led_data->cdev.brightness); in led_pwm_add()
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| H A D | uleds.c | 33 int brightness; member
40 enum led_brightness brightness) in uleds_brightness_set() argument
45 if (udev->brightness != brightness) { in uleds_brightness_set()
46 udev->brightness = brightness; in uleds_brightness_set()
137 if (count < sizeof(udev->brightness)) in uleds_read()
150 retval = copy_to_user(buffer, &udev->brightness, in uleds_read()
151 sizeof(udev->brightness)); in uleds_read()
153 retval = sizeof(udev->brightness); in uleds_read()
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| H A D | led-core.c | 63 unsigned long brightness; in led_timer_function() local
78 brightness = led_get_brightness(led_cdev); in led_timer_function()
79 if (!brightness) { in led_timer_function()
83 brightness = led_cdev->new_blink_brightness; in led_timer_function()
85 brightness = led_cdev->blink_brightness; in led_timer_function()
91 led_cdev->blink_brightness = brightness; in led_timer_function()
92 brightness = LED_OFF; in led_timer_function()
104 if (brightness) in led_timer_function()
108 if (!brightness) in led_timer_function()
293 if (!brightness) { in led_set_brightness()
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