| /linux/arch/powerpc/platforms/powermac/ |
| H A D | backlight.c | 82 int brightness; in pmac_backlight_key_worker() local
86 brightness = props->brightness + in pmac_backlight_key_worker()
90 if (brightness < 0) in pmac_backlight_key_worker()
91 brightness = 0; in pmac_backlight_key_worker()
92 else if (brightness > props->max_brightness) in pmac_backlight_key_worker()
93 brightness = props->max_brightness; in pmac_backlight_key_worker()
95 props->brightness = brightness; in pmac_backlight_key_worker()
114 static int __pmac_backlight_set_legacy_brightness(int brightness) in __pmac_backlight_set_legacy_brightness() argument
123 props->brightness = brightness * in __pmac_backlight_set_legacy_brightness()
127 if (props->brightness > props->max_brightness) in __pmac_backlight_set_legacy_brightness()
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| /linux/drivers/platform/x86/ |
| H A D | silicom-platform.c | 201 enum led_brightness brightness = LED_OFF; in silicom_mec_led_mc_brightness_get() local
205 mc_cdev->subled_info[i].brightness = in silicom_mec_led_mc_brightness_get()
208 if (mc_cdev->subled_info[i].brightness != LED_OFF) in silicom_mec_led_mc_brightness_get()
209 brightness = LED_ON; in silicom_mec_led_mc_brightness_get()
212 return brightness; in silicom_mec_led_mc_brightness_get()
216 enum led_brightness brightness) in silicom_mec_led_mc_brightness_set() argument
221 led_mc_calc_color_components(mc_cdev, brightness); in silicom_mec_led_mc_brightness_set()
224 mc_cdev->subled_info[i].brightness); in silicom_mec_led_mc_brightness_set()
287 .brightness = 1,
293 .brightness = 1,
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| /linux/drivers/video/backlight/ |
| H A D | aat2870_bl.c | 24 int brightness; /* current brightness */ member
28 int brightness) in aat2870_brightness() argument
33 val = brightness * (aat2870_bl->max_current - 1); in aat2870_brightness()
61 int brightness = backlight_get_brightness(bd); in aat2870_bl_update_status() local
64 if ((brightness < 0) || (bd->props.max_brightness < brightness)) { in aat2870_bl_update_status()
65 dev_err(&bd->dev, "invalid brightness, %d\n", brightness); in aat2870_bl_update_status()
70 bd->props.brightness, bd->props.power, bd->props.state); in aat2870_bl_update_status()
73 (u8)aat2870_brightness(aat2870_bl, brightness)); in aat2870_bl_update_status()
77 if (brightness == 0) { in aat2870_bl_update_status()
81 } else if (aat2870_bl->brightness == 0) { in aat2870_bl_update_status()
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| H A 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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| 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()
82 brightness_val[0] = (brightness - 1) & priv->dim2_mask; in mt6370_bl_update_status()
83 brightness_val[1] = (brightness - 1) >> priv->dim2_shift; 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
117 brightness = brightness_val[1] << priv->dim2_shift; in mt6370_bl_get_brightness()
118 brightness += brightness_val[0] & priv->dim2_mask; in mt6370_bl_get_brightness()
120 return brightness + 1; in mt6370_bl_get_brightness()
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| H A D | pcf50633-backlight.c | 21 unsigned int brightness; member
57 else if (bl->props.brightness < pcf_bl->brightness_limit) in pcf50633_bl_update_status()
58 new_brightness = bl->props.brightness; in pcf50633_bl_update_status()
63 if (pcf_bl->brightness == new_brightness) in pcf50633_bl_update_status()
69 if (!pcf_bl->brightness) in pcf50633_bl_update_status()
75 pcf_bl->brightness = new_brightness; in pcf50633_bl_update_status()
84 return pcf_bl->brightness; in pcf50633_bl_get_brightness()
111 bl_props.brightness = pdata->default_brightness; in pcf50633_bl_probe()
114 bl_props.brightness = 0x3f; in pcf50633_bl_probe()
135 pcf_bl->brightness = pcf_bl->bl->props.brightness + 1; in pcf50633_bl_probe()
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| H A D | pandora_bl.c | 41 int brightness = bl->props.brightness; in pandora_backlight_update_status() local
46 brightness = 0; in pandora_backlight_update_status()
48 brightness = 0; in pandora_backlight_update_status()
50 brightness = 0; in pandora_backlight_update_status()
52 if ((unsigned int)brightness > MAX_USER_VALUE) in pandora_backlight_update_status()
53 brightness = MAX_USER_VALUE; in pandora_backlight_update_status()
55 if (brightness == 0) { in pandora_backlight_update_status()
92 twl_i2c_write_u8(TWL_MODULE_PWM, MIN_VALUE + brightness, TWL_PWM0_OFF); in pandora_backlight_update_status()
95 if (brightness != 0) in pandora_backlight_update_status()
135 bl->props.brightness = MAX_USER_VALUE; in pandora_backlight_probe()
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| H A D | ktd253-backlight.c | 77 int brightness = backlight_get_brightness(bl); in ktd253_backlight_update_status() local
82 dev_dbg(ktd253->dev, "new brightness/ratio: %d/32\n", brightness); in ktd253_backlight_update_status()
84 target_ratio = brightness; in ktd253_backlight_update_status()
148 u32 brightness; in ktd253_backlight_probe() local
165 ret = device_property_read_u32(dev, "default-brightness", &brightness); in ktd253_backlight_probe()
167 brightness = KTD253_DEFAULT_RATIO; in ktd253_backlight_probe()
168 if (brightness > max_brightness) { in ktd253_backlight_probe()
171 brightness = max_brightness; in ktd253_backlight_probe()
190 if (brightness) { in ktd253_backlight_probe()
191 bl->props.brightness = brightness; in ktd253_backlight_probe()
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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()
103 bl_props->max_brightness = min_t(u32, brightness, RT4831_BLMAX_BRIGHTNESS); in rt4831_parse_backlight_properties()
105 ret = device_property_read_u32(dev, "default-brightness", &brightness); in rt4831_parse_backlight_properties()
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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 | 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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| H A D | ktd2801-backlight.c | 36 u8 brightness = (u8) backlight_get_brightness(bd); in ktd2801_update_status() local
49 expresswire_write_u8(&ktd2801->props, brightness); in ktd2801_update_status()
63 u32 brightness, max_brightness; in ktd2801_backlight_probe() local
80 ret = device_property_read_u32(dev, "default-brightness", &brightness); in ktd2801_backlight_probe()
82 brightness = KTD2801_DEFAULT_BRIGHTNESS; in ktd2801_backlight_probe()
83 if (brightness > max_brightness) { in ktd2801_backlight_probe()
85 brightness = max_brightness; in ktd2801_backlight_probe()
101 bd->props.brightness = brightness; in ktd2801_backlight_probe()
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| H A D | ams369fg06.c | 227 static int ams369fg06_gamma_ctl(struct ams369fg06 *lcd, int brightness) in ams369fg06_gamma_ctl() argument
232 if ((brightness >= 0) && (brightness <= 50)) in ams369fg06_gamma_ctl()
234 else if ((brightness > 50) && (brightness <= 100)) in ams369fg06_gamma_ctl()
236 else if ((brightness > 100) && (brightness <= 150)) in ams369fg06_gamma_ctl()
238 else if ((brightness > 150) && (brightness <= 200)) in ams369fg06_gamma_ctl()
240 else if ((brightness > 200) && (brightness <= 255)) in ams369fg06_gamma_ctl()
340 ret = ams369fg06_gamma_ctl(lcd, bd->props.brightness); in ams369fg06_power_on()
410 int brightness = bd->props.brightness; in ams369fg06_set_brightness() local
413 if (brightness < MIN_BRIGHTNESS || in ams369fg06_set_brightness()
414 brightness > bd->props.max_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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| /linux/drivers/hid/ |
| H A D | hid-lg-g15.c | 48 enum led_brightness brightness; member
80 g15->leds[LG_G15_KBD_BRIGHTNESS].brightness = g15->transfer_buf[1]; in lg_g15_update_led_brightness()
81 g15->leds[LG_G15_LCD_BRIGHTNESS].brightness = g15->transfer_buf[2]; in lg_g15_update_led_brightness()
83 g15->leds[LG_G15_MACRO_PRESET1].brightness = in lg_g15_update_led_brightness()
85 g15->leds[LG_G15_MACRO_PRESET2].brightness = in lg_g15_update_led_brightness()
87 g15->leds[LG_G15_MACRO_PRESET3].brightness = in lg_g15_update_led_brightness()
89 g15->leds[LG_G15_MACRO_RECORD].brightness = in lg_g15_update_led_brightness()
100 enum led_brightness brightness; in lg_g15_led_get() local
104 brightness = g15->leds[g15_led->led].brightness; in lg_g15_led_get()
107 return brightness; in lg_g15_led_get()
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| /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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| /linux/Documentation/leds/ |
| H A 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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| 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
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/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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| /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.
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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| 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
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/drivers/leds/ |
| H A D | led-core.c | 68 unsigned long brightness; in led_timer_function() local
83 brightness = led_get_brightness(led_cdev); in led_timer_function()
84 if (!brightness) { in led_timer_function()
88 brightness = led_cdev->new_blink_brightness; in led_timer_function()
90 brightness = led_cdev->blink_brightness; in led_timer_function()
96 led_cdev->blink_brightness = brightness; in led_timer_function()
97 brightness = LED_OFF; in led_timer_function()
101 led_set_brightness_nosleep(led_cdev, brightness); in led_timer_function()
109 if (brightness) in led_timer_function()
113 if (!brightness) in led_timer_function()
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| /linux/drivers/gpu/drm/nouveau/dispnv04/ |
| H A 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()
311 plane->props.brightness = drm_property_create_range( in nv10_overlay_init()
319 !plane->props.brightness || in nv10_overlay_init()
332 plane->brightness = 512; in nv10_overlay_init()
334 plane->props.brightness, plane->brightness); in nv10_overlay_init()
377 int brightness = (nv_plane->brightness - 512) * 62 / 512; in nv04_update_plane() local
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| /linux/drivers/leds/trigger/ |
| H A D | ledtrig-backlight.c | 22 int brightness; member
49 n->brightness = led->brightness; in fb_notifier_callback()
52 led_set_brightness_nosleep(led, n->brightness); in fb_notifier_callback()
89 led_set_brightness_nosleep(led, n->brightness); in bl_trig_invert_store()
113 n->brightness = led->brightness; in bl_trig_activate()
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