5 menu "Graphics support"
8 bool "Enable driver model support for LCD/video"
11 This enables driver model for LCD and video devices. These support
12 a bitmap display of various sizes and depths which can be drawn on
13 to display a command-line console or splash screen. Enabling this
14 option compiles in the video uclass and routes all LCD/video access
18 bool "Enable panel backlight uclass support"
22 This provides backlight uclass driver that enables basic panel
26 bool "Generic PWM based Backlight Driver"
27 depends on BACKLIGHT && DM_PWM
30 If you have a LCD backlight adjustable by PWM, say Y to enable
32 This driver can be use with "simple-panel" and
33 it understands the standard device tree
34 (leds/backlight/pwm-backlight.txt)
37 bool "Generic GPIO based Backlight Driver"
40 If you have a LCD backlight adjustable by GPIO, say Y to enable
42 This driver can be used with "simple-panel" and
43 it understands the standard device tree
44 (leds/backlight/gpio-backlight.txt)
47 bool "Enable vidconsole commands lcdputs and setcurs"
51 Enabling this will provide 'setcurs' and 'lcdputs' commands which
52 support cursor positioning and drawing strings on video framebuffer.
55 bool "Support 8-bit-per-pixel displays"
59 Support drawing text and bitmaps onto a 8-bit-per-pixel display.
60 Enabling this will include code to support this display. Without
61 this option, such displays will not be supported and console output
65 bool "Support 16-bit-per-pixel displays"
69 Support drawing text and bitmaps onto a 16-bit-per-pixel display.
70 Enabling this will include code to support this display. Without
71 this option, such displays will not be supported and console output
75 bool "Support 32-bit-per-pixel displays"
79 Support drawing text and bitmaps onto a 32-bit-per-pixel display.
80 Enabling this will include code to support this display. Without
81 this option, such displays will not be supported and console output
85 bool "Support ANSI escape sequences in video console"
89 Enable ANSI escape sequence decoding for a more fully functional
93 bool "Support MIPI DSI interface"
96 Support MIPI DSI interface for driving a MIPI compatible device.
97 The MIPI Display Serial Interface (MIPI DSI) defines a high-speed
98 serial interface between a host processor and a display module.
100 config CONSOLE_NORMAL
101 bool "Support a simple text console"
103 default y if DM_VIDEO
105 Support drawing text on the frame buffer console so that it can be
106 used as a console. Rotation is not supported by this driver (see
107 CONFIG_CONSOLE_ROTATION for that). A built-in 8x16 font is used
110 config CONSOLE_ROTATION
111 bool "Support rotated displays"
114 Sometimes, for example if the display is mounted in portrait
115 mode or even if it's mounted landscape but rotated by 180degree,
116 we need to rotate our content of the display relative to the
117 framebuffer, so that user can read the messages which are
118 printed out. Enable this option to include a text driver which can
119 support this. The rotation is set by the 'rot' parameter in
120 struct video_priv: 0=unrotated, 1=90 degrees clockwise, 2=180
121 degrees, 3=270 degrees.
123 config CONSOLE_TRUETYPE
124 bool "Support a console that uses TrueType fonts"
127 TrueTrype fonts can provide outline-drawing capability rather than
128 needing to provide a bitmap for each font and size that is needed.
129 With this option you can adjust the text size and use a variety of
130 fonts. Note that this is noticeably slower than with normal console.
132 config CONSOLE_TRUETYPE_SIZE
133 int "TrueType font size"
134 depends on CONSOLE_TRUETYPE
137 This sets the font size for the console. The size is measured in
138 pixels and is the nominal height of a character. Note that fonts
139 are commonly measured in 'points', being 1/72 inch (about 3.52mm).
140 However that measurement depends on the size of your display and
141 there is no standard display density. At present there is not a
142 method to select the display's physical size, which would allow
143 U-Boot to calculate the correct font size.
145 config SYS_WHITE_ON_BLACK
146 bool "Display console as white on a black background"
147 default y if ARCH_AT91 || ARCH_EXYNOS || ARCH_ROCKCHIP || ARCH_TEGRA || X86 || ARCH_SUNXI
149 Normally the display is black on a white background, Enable this
150 option to invert this, i.e. white on a black background. This can be
151 better in low-light situations or to reduce eye strain in some
155 bool "Skip framebuffer clear"
157 If firmware (whatever loads u-boot) has already put a splash image
158 on screen, you might want to preserve it until whatever u-boot
159 loads takes over the screen. This, for example, can be used to
160 keep splash image on screen until grub graphical boot menu starts.
163 bool "Enable panel uclass support"
167 This provides panel uclass driver that enables basic panel support.
170 bool "Enable simple panel support"
174 This turns on a simple panel driver that enables a compatible
177 source "drivers/video/fonts/Kconfig"
179 config VIDCONSOLE_AS_LCD
180 bool "Use 'vidconsole' when CONFIG_VIDCONSOLE_AS_NAME string is seen in stdout"
183 This is a work-around for boards which have 'lcd' or 'vga' in their
184 stdout environment variable, but have moved to use driver model for
185 video. In this case the console will no-longer work. While it is
186 possible to update the environment, the breakage may be confusing for
187 users. This option will be removed around the end of 2020.
189 config VIDCONSOLE_AS_NAME
190 string "Use 'vidconsole' when string defined here is seen in stdout"
191 depends on VIDCONSOLE_AS_LCD
192 default "lcd" if LCD || TEGRA_COMMON
193 default "vga" if !LCD
195 This is a work-around for boards which have 'lcd' or 'vga' in their
196 stdout environment variable, but have moved to use driver model for
197 video. In this case the console will no-longer work. While it is
198 possible to update the environment, the breakage may be confusing for
199 users. This option will be removed around the end of 2020.
201 config VIDEO_COREBOOT
202 bool "Enable coreboot framebuffer driver support"
203 depends on X86 && SYS_COREBOOT
205 Turn on this option to enable a framebuffer driver when U-Boot is
206 loaded by coreboot where the graphics device is configured by
207 coreboot already. This can in principle be used with any platform
208 that coreboot supports.
211 bool "Enable EFI framebuffer driver support"
214 Turn on this option to enable a framebuffeer driver when U-Boot is
215 loaded as a payload (see README.u-boot_on_efi) by an EFI BIOS where
216 the graphics device is configured by the EFI BIOS already. This can
217 in principle be used with any platform that has an EFI BIOS.
220 bool "Enable VESA video driver support"
223 Turn on this option to enable a very simple driver which uses vesa
224 to discover the video mode and then provides a frame buffer for use
225 by U-Boot. This can in principle be used with any platform that
226 supports PCI and video cards that support VESA BIOS Extension (VBE).
228 config FRAMEBUFFER_SET_VESA_MODE
229 bool "Set framebuffer graphics resolution"
230 depends on VIDEO_VESA || VIDEO_BROADWELL_IGD
232 Set VESA/native framebuffer mode (needed for bootsplash and graphical
236 prompt "framebuffer graphics resolution"
237 default FRAMEBUFFER_VESA_MODE_118
238 depends on FRAMEBUFFER_SET_VESA_MODE
240 This option sets the resolution used for the U-Boot framebuffer (and
243 config FRAMEBUFFER_VESA_MODE_100
244 bool "640x400 256-color"
246 config FRAMEBUFFER_VESA_MODE_101
247 bool "640x480 256-color"
249 config FRAMEBUFFER_VESA_MODE_102
250 bool "800x600 16-color"
252 config FRAMEBUFFER_VESA_MODE_103
253 bool "800x600 256-color"
255 config FRAMEBUFFER_VESA_MODE_104
256 bool "1024x768 16-color"
258 config FRAMEBUFFER_VESA_MODE_105
259 bool "1024x768 256-color"
261 config FRAMEBUFFER_VESA_MODE_106
262 bool "1280x1024 16-color"
264 config FRAMEBUFFER_VESA_MODE_107
265 bool "1280x1024 256-color"
267 config FRAMEBUFFER_VESA_MODE_108
270 config FRAMEBUFFER_VESA_MODE_109
273 config FRAMEBUFFER_VESA_MODE_10A
276 config FRAMEBUFFER_VESA_MODE_10B
279 config FRAMEBUFFER_VESA_MODE_10C
282 config FRAMEBUFFER_VESA_MODE_10D
283 bool "320x200 32k-color (1:5:5:5)"
285 config FRAMEBUFFER_VESA_MODE_10E
286 bool "320x200 64k-color (5:6:5)"
288 config FRAMEBUFFER_VESA_MODE_10F
289 bool "320x200 16.8M-color (8:8:8)"
291 config FRAMEBUFFER_VESA_MODE_110
292 bool "640x480 32k-color (1:5:5:5)"
294 config FRAMEBUFFER_VESA_MODE_111
295 bool "640x480 64k-color (5:6:5)"
297 config FRAMEBUFFER_VESA_MODE_112
298 bool "640x480 16.8M-color (8:8:8)"
300 config FRAMEBUFFER_VESA_MODE_113
301 bool "800x600 32k-color (1:5:5:5)"
303 config FRAMEBUFFER_VESA_MODE_114
304 bool "800x600 64k-color (5:6:5)"
306 config FRAMEBUFFER_VESA_MODE_115
307 bool "800x600 16.8M-color (8:8:8)"
309 config FRAMEBUFFER_VESA_MODE_116
310 bool "1024x768 32k-color (1:5:5:5)"
312 config FRAMEBUFFER_VESA_MODE_117
313 bool "1024x768 64k-color (5:6:5)"
315 config FRAMEBUFFER_VESA_MODE_118
316 bool "1024x768 16.8M-color (8:8:8)"
318 config FRAMEBUFFER_VESA_MODE_119
319 bool "1280x1024 32k-color (1:5:5:5)"
321 config FRAMEBUFFER_VESA_MODE_11A
322 bool "1280x1024 64k-color (5:6:5)"
324 config FRAMEBUFFER_VESA_MODE_11B
325 bool "1280x1024 16.8M-color (8:8:8)"
327 config FRAMEBUFFER_VESA_MODE_USER
328 bool "Manually select VESA mode"
332 # Map the config names to an integer (KB).
333 config FRAMEBUFFER_VESA_MODE
334 prompt "VESA mode" if FRAMEBUFFER_VESA_MODE_USER
336 default 0x100 if FRAMEBUFFER_VESA_MODE_100
337 default 0x101 if FRAMEBUFFER_VESA_MODE_101
338 default 0x102 if FRAMEBUFFER_VESA_MODE_102
339 default 0x103 if FRAMEBUFFER_VESA_MODE_103
340 default 0x104 if FRAMEBUFFER_VESA_MODE_104
341 default 0x105 if FRAMEBUFFER_VESA_MODE_105
342 default 0x106 if FRAMEBUFFER_VESA_MODE_106
343 default 0x107 if FRAMEBUFFER_VESA_MODE_107
344 default 0x108 if FRAMEBUFFER_VESA_MODE_108
345 default 0x109 if FRAMEBUFFER_VESA_MODE_109
346 default 0x10A if FRAMEBUFFER_VESA_MODE_10A
347 default 0x10B if FRAMEBUFFER_VESA_MODE_10B
348 default 0x10C if FRAMEBUFFER_VESA_MODE_10C
349 default 0x10D if FRAMEBUFFER_VESA_MODE_10D
350 default 0x10E if FRAMEBUFFER_VESA_MODE_10E
351 default 0x10F if FRAMEBUFFER_VESA_MODE_10F
352 default 0x110 if FRAMEBUFFER_VESA_MODE_110
353 default 0x111 if FRAMEBUFFER_VESA_MODE_111
354 default 0x112 if FRAMEBUFFER_VESA_MODE_112
355 default 0x113 if FRAMEBUFFER_VESA_MODE_113
356 default 0x114 if FRAMEBUFFER_VESA_MODE_114
357 default 0x115 if FRAMEBUFFER_VESA_MODE_115
358 default 0x116 if FRAMEBUFFER_VESA_MODE_116
359 default 0x117 if FRAMEBUFFER_VESA_MODE_117
360 default 0x118 if FRAMEBUFFER_VESA_MODE_118
361 default 0x119 if FRAMEBUFFER_VESA_MODE_119
362 default 0x11A if FRAMEBUFFER_VESA_MODE_11A
363 default 0x11B if FRAMEBUFFER_VESA_MODE_11B
364 default 0x117 if FRAMEBUFFER_VESA_MODE_USER
366 config VIDEO_LCD_ANX9804
367 bool "ANX9804 bridge chip"
370 Support for the ANX9804 bridge chip, which can take pixel data coming
371 from a parallel LCD interface and translate it on the fy into a DP
372 interface for driving eDP TFT displays. It uses I2C for configuration.
374 config VIDEO_LCD_ORISETECH_OTM8009A
375 bool "OTM8009A DSI LCD panel support"
377 select VIDEO_MIPI_DSI
380 Say Y here if you want to enable support for Orise Technology
381 otm8009a 480x800 dsi 2dl panel.
383 config VIDEO_LCD_RAYDIUM_RM68200
384 bool "RM68200 DSI LCD panel support"
386 select VIDEO_MIPI_DSI
389 Say Y here if you want to enable support for Raydium RM68200
390 720x1280 DSI video mode panel.
392 config VIDEO_LCD_SSD2828
393 bool "SSD2828 bridge chip"
396 Support for the SSD2828 bridge chip, which can take pixel data coming
397 from a parallel LCD interface and translate it on the fly into MIPI DSI
398 interface for driving a MIPI compatible LCD panel. It uses SPI for
401 config VIDEO_LCD_SSD2828_TX_CLK
402 int "SSD2828 TX_CLK frequency (in MHz)"
403 depends on VIDEO_LCD_SSD2828
406 The frequency of the crystal, which is clocking SSD2828. It may be
407 anything in the 8MHz-30MHz range and the exact value should be
408 retrieved from the board schematics. Or in the case of Allwinner
409 hardware, it can be usually found as 'lcd_xtal_freq' variable in
410 FEX files. It can be also set to 0 for selecting PCLK from the
411 parallel LCD interface instead of TX_CLK as the PLL clock source.
413 config VIDEO_LCD_SSD2828_RESET
414 string "RESET pin of SSD2828"
415 depends on VIDEO_LCD_SSD2828
418 The reset pin of SSD2828 chip. This takes a string in the format
419 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
421 config VIDEO_LCD_HITACHI_TX18D42VM
422 bool "Hitachi tx18d42vm LVDS LCD panel support"
426 Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a
427 lcd controller which needs to be initialized over SPI, once that is
428 done they work like a regular LVDS panel.
430 config VIDEO_LCD_SPI_CS
431 string "SPI CS pin for LCD related config job"
432 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
435 This is one of the SPI communication pins, involved in setting up a
436 working LCD configuration. The exact role of SPI may differ for
437 different hardware setups. The option takes a string in the format
438 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
440 config VIDEO_LCD_SPI_SCLK
441 string "SPI SCLK pin for LCD related config job"
442 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
445 This is one of the SPI communication pins, involved in setting up a
446 working LCD configuration. The exact role of SPI may differ for
447 different hardware setups. The option takes a string in the format
448 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
450 config VIDEO_LCD_SPI_MOSI
451 string "SPI MOSI pin for LCD related config job"
452 depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
455 This is one of the SPI communication pins, involved in setting up a
456 working LCD configuration. The exact role of SPI may differ for
457 different hardware setups. The option takes a string in the format
458 understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
460 config VIDEO_LCD_SPI_MISO
461 string "SPI MISO pin for LCD related config job (optional)"
462 depends on VIDEO_LCD_SSD2828
465 This is one of the SPI communication pins, involved in setting up a
466 working LCD configuration. The exact role of SPI may differ for
467 different hardware setups. If wired up, this pin may provide additional
468 useful functionality. Such as bi-directional communication with the
469 hardware and LCD panel id retrieval (if the panel can report it). The
470 option takes a string in the format understood by 'name_to_gpio'
471 function, e.g. PH1 for pin 1 of port H.
473 source "drivers/video/meson/Kconfig"
476 bool "Armada XP LCD controller"
479 Support for the LCD controller integrated in the Marvell
483 bool "Enable OMAP3+ DSS Support"
484 depends on ARCH_OMAP2PLUS
486 This enables the Display subsystem (DSS) on OMAP3+ boards.
489 bool "Enable EDID library"
492 This enables library for accessing EDID data from an LCD panel.
495 bool "Enable Display support"
500 This supports drivers that provide a display, such as eDP (Embedded
501 DisplayPort) and HDMI (High Definition Multimedia Interface).
502 The devices provide a simple interface to start up the display,
503 read display information and enable it.
506 bool "Enable NXP TDA19988 support"
510 This enables support for the NXP TDA19988 HDMI encoder. This encoder
511 will convert RGB data streams into HDMI-encoded signals.
514 bool "Enable ATMEL video support using HLCDC"
516 HLCDC supports video output to an attached LCD panel.
519 bool "Enable AM335x video support"
521 Supports video output to an attached LCD panel.
523 config LOGICORE_DP_TX
524 bool "Enable Logicore DP TX driver"
527 Enable the driver for the transmitter part of the Xilinx LogiCORE
528 DisplayPort, a IP core for Xilinx FPGAs that implements a DisplayPort
529 video interface as defined by VESA DisplayPort v1.2.
531 Note that this is a pure transmitter device, and has no display
532 capabilities by itself.
534 config VIDEO_BROADWELL_IGD
535 bool "Enable Intel Broadwell integrated graphics device"
538 This enables support for integrated graphics on Intel broadwell
539 devices. Initialisation is mostly performed by a VGA boot ROM, with
540 some setup handled by U-Boot itself. The graphics adaptor works as
541 a VESA device and supports LCD panels, eDP and LVDS outputs.
542 Configuration of most aspects of device operation is performed using
543 a special tool which configures the VGA ROM, but the graphics
544 resolution can be selected in U-Boot.
546 config VIDEO_IVYBRIDGE_IGD
547 bool "Enable Intel Ivybridge integration graphics support"
550 This enables support for integrated graphics on Intel ivybridge
551 devices. Initialisation is mostly performed by a VGA boot ROM, with
552 some setup handled by U-Boot itself. The graphics adaptor works as
553 a VESA device and supports LCD panels, eDP and LVDS outputs.
554 Configuration of most aspects of device operation is performed using
555 a special tool which configures the VGA ROM, but the graphics
556 resolution can be selected in U-Boot.
558 config VIDEO_FSL_DCU_FB
559 bool "Enable Freescale Display Control Unit"
560 depends on VIDEO || DM_VIDEO
562 This enables support for Freescale Display Control Unit (DCU4)
563 module found on Freescale Vybrid and QorIQ family of SoCs.
565 config VIDEO_FSL_DCU_MAX_FB_SIZE_MB
566 int "Freescale DCU framebuffer size"
567 depends on VIDEO_FSL_DCU_FB
570 Set maximum framebuffer size to be used for Freescale Display
571 Controller Unit (DCU4).
573 source "drivers/video/rockchip/Kconfig"
575 config VIDEO_ARM_MALIDP
576 bool "Enable Arm Mali Display Processor support"
577 depends on DM_VIDEO && OF_CONTROL
580 This enables support for Arm Ltd Mali Display Processors from
581 the DP500, DP550 and DP650 family.
583 config VIDEO_SANDBOX_SDL
584 bool "Enable sandbox video console using SDL"
587 When using sandbox you can enable an emulated LCD display which
588 appears as an SDL (Simple DirectMedia Layer) window. This is a
589 console device and can display stdout output. Within U-Boot is is
590 a normal bitmap display and can display images as well as text.
592 source "drivers/video/stm32/Kconfig"
595 bool "Enable LCD support on Tegra20"
596 depends on OF_CONTROL
598 Tegra20 supports video output to an attached LCD panel as well as
599 other options such as HDMI. Only the LCD is supported in U-Boot.
600 This option enables this support which can be used on devices which
601 have an LCD display connected.
603 config VIDEO_TEGRA124
604 bool "Enable video support on Tegra124"
607 Tegra124 supports many video output options including eDP and
608 HDMI. At present only eDP is supported by U-Boot. This option
609 enables this support which can be used on devices which
610 have an eDP display connected.
612 source "drivers/video/bridge/Kconfig"
614 source "drivers/video/imx/Kconfig"
617 bool "Enable legacy video support"
620 Define this for video support, without using driver model. Some
621 drivers use this because they are not yet converted to driver
622 model. Video drivers typically provide a colour text console and
626 bool "Enable colour frame buffer console"
630 Enables the colour frame buffer driver. This supports colour
631 output on a bitmap display from an in-memory frame buffer.
632 Several colour devices are supported along with various options to
633 adjust the supported features. The driver is implemented in
636 The following defines are needed (cf. smiLynxEM, i8042)
637 VIDEO_FB_LITTLE_ENDIAN graphic memory organisation
639 VIDEO_HW_RECTFILL graphic chip supports
640 rectangle fill (cf. smiLynxEM)
641 VIDEO_HW_BITBLT graphic chip supports
642 bit-blit (cf. smiLynxEM)
643 VIDEO_VISIBLE_COLS visible pixel columns (cols=pitch)
644 VIDEO_VISIBLE_ROWS visible pixel rows
645 VIDEO_PIXEL_SIZE bytes per pixel
646 VIDEO_DATA_FORMAT graphic data format
647 (0-5, cf. cfb_console.c)
648 VIDEO_FB_ADRS framebuffer address
649 VIDEO_KBD_INIT_FCT keyboard int fct (i.e. rx51_kp_init())
650 VIDEO_TSTC_FCT test char fct (i.e. rx51_kp_tstc)
651 VIDEO_GETC_FCT get char fct (i.e. rx51_kp_getc)
652 CONFIG_VIDEO_LOGO display Linux logo in upper left corner
653 CONFIG_VIDEO_BMP_LOGO use bmp_logo.h instead of linux_logo.h
654 for logo. Requires CONFIG_VIDEO_LOGO
655 CONFIG_CONSOLE_EXTRA_INFO
656 additional board info beside
658 CONFIG_HIDE_LOGO_VERSION
659 do not display bootloader
662 When CONFIG_CFB_CONSOLE is defined, the video console is the
663 default console. The serial console can be forced by setting the
664 environment 'console=serial'.
666 config CFB_CONSOLE_ANSI
667 bool "Support ANSI escape sequences"
668 depends on CFB_CONSOLE
670 This allows the colour buffer frame buffer driver to support
671 a limited number of ANSI escape sequences (cursor control,
672 erase functions and limited graphics rendition control). Normal
673 output from U-Boot will pass through this filter.
675 config VGA_AS_SINGLE_DEVICE
676 bool "Set the video as an output-only device"
677 depends on CFB_CONSOLE
680 If enable the framebuffer device will be initialized as an
681 output-only device. The Keyboard driver will not be set up. This
682 may be used if you have no keyboard device, or more than one
683 (USB Keyboard, AT Keyboard).
685 config VIDEO_SW_CURSOR
686 bool "Enable a software cursor"
687 depends on CFB_CONSOLE
688 default y if CFB_CONSOLE
690 This draws a cursor after the last character. No blinking is
691 provided. This makes it possible to see the current cursor
692 position when entering text on the console. It is recommended to
695 config CONSOLE_EXTRA_INFO
696 bool "Display additional board information"
697 depends on CFB_CONSOLE
699 Display additional board information strings that normally go to
700 the serial port. When this option is enabled, a board-specific
701 function video_get_info_str() is called to get the string for
702 each line of the display. The function should return the string,
703 which can be empty if there is nothing to display for that line.
705 config CONSOLE_SCROLL_LINES
706 int "Number of lines to scroll the console by"
707 depends on CFB_CONSOLE || DM_VIDEO || LCD
710 When the console need to be scrolled, this is the number of
711 lines to scroll by. It defaults to 1. Increasing this makes the
712 console jump but can help speed up operation when scrolling
715 config SYS_CONSOLE_BG_COL
716 hex "Background colour"
717 depends on CFB_CONSOLE
720 Defines the background colour for the console. The value is from
721 0x00 to 0xff and the meaning depends on the graphics card.
722 Typically, 0x00 means black and 0xff means white. Do not set
723 the background and foreground to the same colour or you will see
726 config SYS_CONSOLE_FG_COL
727 hex "Foreground colour"
728 depends on CFB_CONSOLE
731 Defines the foreground colour for the console. The value is from
732 0x00 to 0xff and the meaning depends on the graphics card.
733 Typically, 0x00 means black and 0xff means white. Do not set
734 the background and foreground to the same colour or you will see
738 bool "Enable legacy LCD support"
740 Define this to enable LCD support (for output to LCD display).
741 You will also need to select an LCD driver using an additional
742 CONFIG option. See the README for details. Drives which have been
743 converted to driver model will instead used CONFIG_DM_VIDEO.
748 Enables the common driver code for the Designware HDMI TX
749 block found in SoCs from various vendors.
750 As this does not provide any functionality by itself (but
751 rather requires a SoC-specific glue driver to call it), it
752 can not be enabled from the configuration menu.
754 config VIDEO_DSI_HOST_SANDBOX
755 bool "Enable sandbox for dsi host"
757 select VIDEO_MIPI_DSI
759 Enable support for sandbox dsi host device used for testing
761 Display Serial Interface (DSI) defines a serial bus and
762 a communication protocol between the host and the device
765 config VIDEO_DW_MIPI_DSI
767 select VIDEO_MIPI_DSI
769 Enables the common driver code for the Synopsis Designware
770 MIPI DSI block found in SoCs from various vendors.
771 As this does not provide any functionality by itself (but
772 rather requires a SoC-specific glue driver to call it), it
773 can not be enabled from the configuration menu.
776 bool "Simple display driver for preconfigured display"
778 Enables a simple generic display driver which utilizes the
779 simple-framebuffer devicetree bindings.
781 This driver assumes that the display hardware has been initialized
782 before u-boot starts, and u-boot will simply render to the pre-
783 allocated frame buffer surface.
785 config VIDEO_DT_SIMPLEFB
786 bool "Enable SimpleFB support for passing framebuffer to OS"
788 Enables the code to pass the framebuffer to the kernel as a
789 simple framebuffer in the device tree.
790 The video output is initialized by U-Boot, and kept by the
794 bool "Enable OSD support"
798 This supports drivers that provide a OSD (on-screen display), which
799 is a (usually text-oriented) graphics buffer to show information on
803 bool "Enable sandbox OSD"
806 Enable support for sandbox OSD device used for testing purposes.
809 bool "Enable IHS video out driver"
812 Enable support for the gdsys Integrated Hardware Systems (IHS) video
813 out On-screen Display (OSD) used on gdsys FPGAs to control dynamic
814 textual overlays of the display outputs.