| /Linux-v5.15/arch/powerpc/platforms/powermac/ |
| D | backlight.c | 109 int brightness; in pmac_backlight_key_worker() local
113 brightness = props->brightness + in pmac_backlight_key_worker()
117 if (brightness < 0) in pmac_backlight_key_worker()
118 brightness = 0; in pmac_backlight_key_worker()
119 else if (brightness > props->max_brightness) in pmac_backlight_key_worker()
120 brightness = props->max_brightness; in pmac_backlight_key_worker()
122 props->brightness = brightness; in pmac_backlight_key_worker()
141 static int __pmac_backlight_set_legacy_brightness(int brightness) in __pmac_backlight_set_legacy_brightness() argument
150 props->brightness = brightness * in __pmac_backlight_set_legacy_brightness()
154 if (props->brightness > props->max_brightness) in __pmac_backlight_set_legacy_brightness()
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| /Linux-v5.15/drivers/video/backlight/ |
| 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 = bd->props.brightness; in aat2870_bl_update_status() local
65 if ((brightness < 0) || (bd->props.max_brightness < brightness)) { in aat2870_bl_update_status()
66 dev_err(&bd->dev, "invalid brightness, %d\n", brightness); in aat2870_bl_update_status()
71 bd->props.brightness, bd->props.power, bd->props.state); in aat2870_bl_update_status()
76 brightness = 0; in aat2870_bl_update_status()
79 (u8)aat2870_brightness(aat2870_bl, brightness)); in aat2870_bl_update_status()
83 if (brightness == 0) { in aat2870_bl_update_status()
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| 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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| D | as3711_bl.c | 29 int brightness; member
52 unsigned int brightness) in as3711_set_brightness_auto_i() argument
62 brightness); in as3711_set_brightness_auto_i()
65 brightness); in as3711_set_brightness_auto_i()
68 brightness); in as3711_set_brightness_auto_i()
74 unsigned int brightness, in as3711_set_brightness_v() argument
77 if (brightness > 31) in as3711_set_brightness_v()
81 brightness << 4); in as3711_set_brightness_v()
107 int brightness; in as3711_bl_update_status() local
110 brightness = backlight_get_brightness(bl); in as3711_bl_update_status()
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| D | rt4831-backlight.c | 36 int brightness = backlight_get_brightness(bl_dev); in rt4831_bl_update_status() local
37 unsigned int enable = brightness ? RT4831_BLEN_MASK : 0; in rt4831_bl_update_status()
41 if (brightness) { in rt4831_bl_update_status()
42 v[0] = (brightness - 1) & RT4831_BLDIML_MASK; in rt4831_bl_update_status()
43 v[1] = ((brightness - 1) & RT4831_BLDIMH_MASK) >> RT4831_BLDIMH_SHIFT; in rt4831_bl_update_status()
88 u32 brightness; in rt4831_parse_backlight_properties() local
93 ret = device_property_read_u32(dev, "max-brightness", &brightness); in rt4831_parse_backlight_properties()
95 brightness = RT4831_BLMAX_BRIGHTNESS; in rt4831_parse_backlight_properties()
97 bl_props->max_brightness = min_t(u32, brightness, RT4831_BLMAX_BRIGHTNESS); in rt4831_parse_backlight_properties()
99 ret = device_property_read_u32(dev, "default-brightness", &brightness); in rt4831_parse_backlight_properties()
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| 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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| 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()
194 if (brightness) { in ktd253_backlight_probe()
195 bl->props.brightness = brightness; in ktd253_backlight_probe()
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| 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()
132 bl->props.brightness = 0; in da9052_backlight_probe()
143 wleds->brightness = 0; in da9052_backlight_remove()
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| D | lm3639_bl.c | 111 pdata->pwm_set_intensity(bl->props.brightness, in lm3639_bled_update_status()
116 return bl->props.brightness; in lm3639_bled_update_status()
120 ret = regmap_write(pchip->regmap, REG_BL_CONF_4, bl->props.brightness); in lm3639_bled_update_status()
123 ret = regmap_write(pchip->regmap, REG_BL_CONF_3, 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()
149 bl->props.brightness = pdata->pwm_get_intensity(); in lm3639_bled_get_brightness()
153 return bl->props.brightness; in lm3639_bled_get_brightness()
165 bl->props.brightness = reg_val; in lm3639_bled_get_brightness()
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| D | tosa_bl.c | 36 static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness) in tosa_bl_set_backlight() argument
43 i2c_smbus_write_byte_data(data->i2c, DAC_CH2, (u8)(brightness & 0xff)); in tosa_bl_set_backlight()
46 gpiod_set_value(data->gpio, brightness & 0x100); in tosa_bl_set_backlight()
48 tosa_bl_enable(spi, brightness); in tosa_bl_set_backlight()
56 int brightness = props->brightness; in tosa_bl_update_status() local
59 brightness = 0; in tosa_bl_update_status()
61 tosa_bl_set_backlight(data, brightness); in tosa_bl_update_status()
70 return props->brightness; in tosa_bl_get_brightness()
112 data->bl->props.brightness = 69; in tosa_bl_probe()
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| D | ams369fg06.c | 228 static int ams369fg06_gamma_ctl(struct ams369fg06 *lcd, int brightness) in ams369fg06_gamma_ctl() argument
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()
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| 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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| 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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| D | lm3630a_bl.c | 195 return lm3630a_pwm_ctrl(pchip, bl->props.brightness, in lm3630a_bank_a_update_status()
204 ret = lm3630a_write(pchip, REG_BRT_A, bl->props.brightness); in lm3630a_bank_a_update_status()
205 if (bl->props.brightness < 0x4) in lm3630a_bank_a_update_status()
221 int brightness, rval; in lm3630a_bank_a_get_brightness() local
229 brightness = (rval & 0x01) << 8; in lm3630a_bank_a_get_brightness()
233 brightness |= rval; in lm3630a_bank_a_get_brightness()
245 brightness = rval; in lm3630a_bank_a_get_brightness()
248 bl->props.brightness = brightness; in lm3630a_bank_a_get_brightness()
249 return bl->props.brightness; in lm3630a_bank_a_get_brightness()
270 return lm3630a_pwm_ctrl(pchip, bl->props.brightness, in lm3630a_bank_b_update_status()
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| /Linux-v5.15/drivers/hid/ |
| D | hid-lg-g15.c | 47 enum led_brightness brightness; member
79 g15->leds[LG_G15_KBD_BRIGHTNESS].brightness = g15->transfer_buf[1]; in lg_g15_update_led_brightness()
80 g15->leds[LG_G15_LCD_BRIGHTNESS].brightness = g15->transfer_buf[2]; in lg_g15_update_led_brightness()
82 g15->leds[LG_G15_MACRO_PRESET1].brightness = in lg_g15_update_led_brightness()
84 g15->leds[LG_G15_MACRO_PRESET2].brightness = in lg_g15_update_led_brightness()
86 g15->leds[LG_G15_MACRO_PRESET3].brightness = in lg_g15_update_led_brightness()
88 g15->leds[LG_G15_MACRO_RECORD].brightness = in lg_g15_update_led_brightness()
99 enum led_brightness brightness; in lg_g15_led_get() local
103 brightness = g15->leds[g15_led->led].brightness; in lg_g15_led_get()
106 return brightness; in lg_g15_led_get()
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| /Linux-v5.15/drivers/net/wireless/ralink/rt2x00/ |
| 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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| /Linux-v5.15/Documentation/leds/ |
| D | leds-lm3556.rst | 26 LM3556 Flash can be controlled through /sys/class/leds/flash/brightness file
28 * if STROBE pin is enabled, below example control brightness only, and
35 #echo 0 > /sys/class/leds/flash/brightness
39 #echo 1 > /sys/class/leds/flash/brightness
45 #echo 16 > /sys/class/leds/flash/brightness
54 LM3556 torch can be controlled through /sys/class/leds/torch/brightness file.
55 * if TORCH pin is enabled, below example control brightness only,
62 #echo 0 > /sys/class/leds/torch/brightness
66 #echo 1 > /sys/class/leds/torch/brightness
72 #echo 8 > /sys/class/leds/torch/brightness
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| 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
68 The user can control the brightness of that multicolor LED group by writing the
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
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| /Linux-v5.15/Documentation/devicetree/bindings/leds/ |
| 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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| /Linux-v5.15/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
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
49 Last hardware set brightness level for this LED. Some LEDs
55 the brightness.
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| 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
10 non-linear. To achieve a linear perception of brightness changes
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
25 The brightness changes non-linearly with each step. Brightness
43 brightness).
56 (RW) Read or write the specific brightness level at which the
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| /Linux-v5.15/drivers/leds/ |
| 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()
96 led_set_brightness_nosleep(led_cdev, brightness); in led_timer_function()
104 if (brightness) in led_timer_function()
108 if (!brightness) in led_timer_function()
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| 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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| 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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| /Linux-v5.15/drivers/gpu/drm/nouveau/dispnv04/ |
| D | overlay.c | 46 struct drm_property *brightness; member
53 int brightness; member
220 u32 luma = (plane->brightness - 512) << 16 | plane->contrast; in nv10_set_params()
255 else if (property == nv_plane->props.brightness) in nv_set_property()
256 nv_plane->brightness = value; in nv_set_property()
310 plane->props.brightness = drm_property_create_range( in nv10_overlay_init()
318 !plane->props.brightness || in nv10_overlay_init()
331 plane->brightness = 512; in nv10_overlay_init()
333 plane->props.brightness, plane->brightness); in nv10_overlay_init()
376 int brightness = (nv_plane->brightness - 512) * 62 / 512; in nv04_update_plane() local
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