| /Linux-v5.15/drivers/video/backlight/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # Backlight & LCD drivers configuration
6 menu "Backlight & LCD device support"
9 # LCD
12 tristate "Lowlevel LCD controls"
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!)).
19 To have support for your specific LCD panel you will have to
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| D | platform_lcd.c | 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* drivers/video/backlight/platform_lcd.c
7 * Generic platform-device LCD power control interface.
13 #include <linux/backlight.h>
14 #include <linux/lcd.h>
22 struct lcd_device *lcd; member
29 static inline struct platform_lcd *to_our_lcd(struct lcd_device *lcd) in to_our_lcd() argument
31 return lcd_get_data(lcd); in to_our_lcd()
34 static int platform_lcd_get_power(struct lcd_device *lcd) in platform_lcd_get_power() argument
36 struct platform_lcd *plcd = to_our_lcd(lcd); in platform_lcd_get_power()
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| D | corgi_lcd.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * LCD/Backlight Driver for Sharp Zaurus Handhelds (various models)
5 * Copyright (c) 2004-2006 Richard Purdie
7 * Based on Sharp's 2.4 Backlight Driver
10 * Converted to SPI device based LCD/Backlight device driver
20 #include <linux/lcd.h>
43 #define POWER1_GVSS_ON 0x02 /* GVSS(-8V) Power Supply ON */
44 #define POWER1_VDD_ON 0x04 /* VDD(8V),SVSS(-4V) Power Supply ON */
47 #define POWER1_GVSS_OFF 0x00 /* GVSS(-8V) Power Supply OFF */
48 #define POWER1_VDD_OFF 0x00 /* VDD(8V),SVSS(-4V) Power Supply OFF */
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| /Linux-v5.15/drivers/gpu/drm/panel/ |
| D | panel-sony-acx565akm.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Sony ACX565AKM LCD Panel driver
7 * Based on the omapdrm-specific panel-sony-acx565akm driver
16 * - Update backlight support to use backlight_update_status() etc.
17 * - Use prepare/unprepare for the basic power on/off of the backligt
20 #include <linux/backlight.h>
52 struct backlight_device *backlight; member
75 static void acx565akm_transfer(struct acx565akm_panel *lcd, int cmd, in acx565akm_transfer() argument
88 x->tx_buf = &cmd; in acx565akm_transfer()
89 x->bits_per_word = 9; in acx565akm_transfer()
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
12 tristate "ABT Y030XX067A 320x480 LCD panel"
17 Y030XX067A 320x480 3.0" panel as found in the YLM RG-280M, RG-300
18 and RG-99 handheld gaming consoles.
47 TFT-LCD modules. The panel has a 1200x1920 resolution and uses
49 the host and has a built-in LED backlight.
75 This driver supports LVDS panels that don't require device-specific
77 backlight handling if the panel is attached to a backlight controller.
88 a GPIO to be powered up. Optionally a backlight can be attached so
99 KD35T133 controller for 320x480 LCD panels with MIPI-DSI
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| /Linux-v5.15/Documentation/devicetree/bindings/display/ |
| D | atmel,lcdc.txt | 2 -----------------------------------------------------
5 - compatible :
6 "atmel,at91sam9261-lcdc" ,
7 "atmel,at91sam9263-lcdc" ,
8 "atmel,at91sam9g10-lcdc" ,
9 "atmel,at91sam9g45-lcdc" ,
10 "atmel,at91sam9g45es-lcdc" ,
11 "atmel,at91sam9rl-lcdc" ,
12 "atmel,at32ap-lcdc"
13 - reg : Should contain 1 register ranges(address and length).
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| D | ilitek,ili9486.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
17 - $ref: panel/panel-common.yaml#
22 - enum:
23 # Waveshare 3.5" 320x480 Color TFT LCD
24 - waveshare,rpi-lcd-35
25 # Ozzmaker 3.5" 320x480 Color TFT LCD
26 - ozzmaker,piscreen
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| D | sitronix,st7735r.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - David Lechner <david@lechnology.com>
17 - $ref: panel/panel-common.yaml#
22 - description:
23 Adafruit 1.8" 160x128 Color TFT LCD (Product ID 358 or 618)
25 - enum:
26 - jianda,jd-t18003-t01
27 - const: sitronix,st7735r
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| /Linux-v5.15/drivers/auxdisplay/ |
| D | charlcd.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Character LCD driver for Linux
5 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
6 * Copyright (C) 2016-2017 Glider bvba
24 /* Keep the backlight on this many seconds for each flash */
27 #define LCD_ESCAPE_LEN 24 /* Max chars for LCD escape command */
31 struct charlcd lcd; member
39 /* contains the LCD config state */
42 /* Current escape sequence and it's length or -1 if outside */
51 #define charlcd_to_priv(p) container_of(p, struct charlcd_priv, lcd)
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| D | charlcd.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Character LCD driver for Linux
5 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
6 * Copyright (C) 2016-2017 Glider bvba
16 #define LCD_FLAG_N 0x0040 /* 2-rows mode */
17 #define LCD_FLAG_L 0x0080 /* Backlight enabled */
46 /* Contains the LCD X and Y offset */
56 * struct charlcd_ops - Functions used by charlcd. Drivers have to implement
58 * @backlight: Turn backlight on or off. Optional.
79 void (*backlight)(struct charlcd *lcd, enum charlcd_onoff on); member
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
4 # see Documentation/kbuild/kconfig-language.rst.
20 tristate "Character LCD core support" if COMPILE_TEST
22 This is the base system for character-based LCD displays.
25 This is some character LCD core interface that multiple drivers can
29 tristate "Common functions for HD44780 (and compatibles) LCD displays" if COMPILE_TEST
39 tristate "HD44780 Character LCD support"
44 The LCD is accessible through the /dev/lcd char device (10, 156).
50 tristate "KS0108 LCD Controller"
54 If you have a LCD controlled by one or more KS0108
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| /Linux-v5.15/Documentation/devicetree/bindings/mfd/ |
| D | richtek,rt4831.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT4831 DSV and Backlight Integrated IC
10 - ChiYuan Huang <cy_huang@richtek.com>
13 RT4831 is a multifunctional device that can provide power to the LCD display
14 and LCD backlight.
17 It's sufficient to meet the current LCD power requirement.
19 For the LCD backlight, it can provide four channel WLED driving capability.
23 https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
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| /Linux-v5.15/Documentation/devicetree/bindings/leds/backlight/ |
| D | richtek,rt4831-backlight.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/richtek,rt4831-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT4831 Backlight
10 - ChiYuan Huang <cy_huang@richtek.com>
13 RT4831 is a mutifunctional device that can provide power to the LCD display
14 and LCD backlight.
16 For the LCD backlight, it can provide four channel WLED driving capability.
20 https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
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| /Linux-v5.15/Documentation/devicetree/bindings/display/panel/ |
| D | olimex,lcd-olinuxino.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/panel/olimex,lcd-olinuxino.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Binding for Olimex Ltd. LCD-OLinuXino bridge panel.
10 - Stefan Mavrodiev <stefan@olimex.com>
13 This device can be used as bridge between a host controller and LCD panels.
15 - LCD-OLinuXino-4.3TS
16 - LCD-OLinuXino-5
17 - LCD-OLinuXino-7
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| D | boe,tv101wum-nl6.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/panel/boe,tv101wum-nl6.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: BOE TV101WUM-NL6 DSI Display Panel
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Sam Ravnborg <sam@ravnborg.org>
14 - $ref: panel-common.yaml#
19 # BOE TV101WUM-NL6 10.1" WUXGA TFT LCD panel
20 - boe,tv101wum-nl6
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| D | rocktech,jh057n00900.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Rocktech JH057N00900 5.5" 720x1440 TFT LCD panel
10 - Ondrej Jirman <megi@xff.cz>
11 - Guido Gŭnther <agx@sigxcpu.org>
14 Rocktech JH057N00900 is a 720x1440 TFT LCD panel
15 connected using a MIPI-DSI video interface.
18 - $ref: panel-common.yaml#
23 # Rocktech JH057N00900 5.5" 720x1440 TFT LCD panel
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| D | sitronix,st7701.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Sitronix ST7701 based LCD panels
10 - Jagan Teki <jagan@amarulasolutions.com>
13 ST7701 designed for small and medium sizes of TFT LCD display, is
17 Techstar TS8550B is 480x854, 2-lane MIPI DSI LCD panel which has
21 - $ref: panel-common.yaml#
26 - enum:
27 - techstar,ts8550b
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| D | panel-simple-dsi.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-simple-dsi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Simple DSI panels with a single power-supply
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Sam Ravnborg <sam@ravnborg.org>
15 requires only a single power-supply.
16 There are optionally a backlight and an enable GPIO.
23 - $ref: panel-common.yaml#
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| /Linux-v5.15/arch/arm/boot/dts/ |
| D | rk3288-veyron-edp.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
9 backlight_regulator: backlight-regulator {
10 compatible = "regulator-fixed";
11 enable-active-high;
13 pinctrl-names = "default";
14 pinctrl-0 = <&bl_pwr_en>;
15 regulator-name = "backlight_regulator";
16 vin-supply = <&vcc33_sys>;
17 startup-delay-us = <15000>;
20 panel_regulator: panel-regulator {
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| D | imx6ul-phytec-segin-peb-av-02.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
9 backlight_lcd: backlight-lcd {
10 compatible = "pwm-backlight";
11 brightness-levels = <0 4 8 16 32 64 128 255>;
12 default-brightness-level = <5>;
13 power-supply = <®_backlight_en>;
18 lcd_panel: lcd-panel {
20 backlight = <&backlight_lcd>;
25 remote-endpoint = <&lcdif_parallel_out>;
30 reg_backlight_en: regulator-backlight-en {
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| D | imx23-evk.dts | 1 // SPDX-License-Identifier: GPL-2.0+
5 /dts-v1/;
10 compatible = "fsl,imx23-evk", "fsl,imx23";
17 reg_vddio_sd0: regulator-vddio-sd0 {
18 compatible = "regulator-fixed";
19 regulator-name = "vddio-sd0";
20 regulator-min-microvolt = <3300000>;
21 regulator-max-microvolt = <3300000>;
25 reg_lcd_3v3: regulator-lcd-3v3 {
26 compatible = "regulator-fixed";
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| /Linux-v5.15/Documentation/devicetree/bindings/auxdisplay/ |
| D | hit,hd44780.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Hitachi HD44780 Character LCD Controller
10 - Geert Uytterhoeven <geert@linux-m68k.org>
13 The Hitachi HD44780 Character LCD Controller is commonly used on character
15 interface, which can be used in either 4-bit or 8-bit mode. By using a
24 data-gpios:
26 GPIO pins connected to the data signal lines DB0-DB7 (8-bit mode) or
27 DB4-DB7 (4-bit mode) of the LCD Controller's bus interface.
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| /Linux-v5.15/arch/mips/boot/dts/ingenic/ |
| D | rs90.dts | 1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/iio/adc/ingenic,adc.h>
8 #include <dt-bindings/input/linux-event-codes.h>
12 model = "RS-90";
19 reserved-memory {
20 #address-cells = <1>;
21 #size-cells = <1>;
24 vmem: video-memory@1f00000 {
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| /Linux-v5.15/Documentation/devicetree/bindings/leds/ |
| D | leds-lm36274.txt | 1 * Texas Instruments LM36274 4-Channel LCD Backlight Driver w/Integrated Bias
3 The LM36274 is an integrated four-channel WLED driver and LCD bias supply.
4 The backlight boost provides the power to bias four parallel LED strings with
5 up to 29V total output voltage. The 11-bit LED current is programmable via
9 Documentation/devicetree/bindings/mfd/ti-lmu.txt
12 Documentation/devicetree/bindings/regulator/lm363x-regulator.txt
14 Required backlight properties:
15 - compatible:
16 "ti,lm36274-backlight"
17 - reg : 0
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| /Linux-v5.15/arch/arm/mach-pxa/ |
| D | magician.c | 1 // SPDX-License-Identifier: GPL-2.0-only
4 * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
5 * and T-Mobile MDA Compact.
7 * Copyright (c) 2006-2007 Philipp Zabel
20 #include <linux/mfd/htc-pasic3.h>
23 #include <linux/platform_data/gpio-htc-egpio.h>
28 #include <linux/regulator/gpio-regulator.h>
30 #include <linux/platform_data/i2c-pxa.h>
33 #include <asm/mach-types.h>
39 #include <linux/platform_data/video-pxafb.h>
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