xref: /openbmc/u-boot/drivers/video/Kconfig (revision 53ab4af3)
1config VIDEO_VESA
2	bool "Enable VESA video driver support"
3	depends on X86
4	default n
5	help
6	  Turn on this option to enable a very simple driver which uses vesa
7	  to discover the video mode and then provides a frame buffer for use
8	  by U-Boot. This can in principle be used with any platform that
9	  supports PCI and video cards that support VESA BIOS Extension (VBE).
10
11config VIDEO_LCD_SSD2828
12	bool "SSD2828 bridge chip"
13	default n
14	---help---
15	Support for the SSD2828 bridge chip, which can take pixel data coming
16	from a parallel LCD interface and translate it on the fly into MIPI DSI
17	interface for driving a MIPI compatible LCD panel. It uses SPI for
18	configuration.
19
20config VIDEO_LCD_SSD2828_TX_CLK
21	int "SSD2828 TX_CLK frequency (in MHz)"
22	depends on VIDEO_LCD_SSD2828
23	default 0
24	---help---
25	The frequency of the crystal, which is clocking SSD2828. It may be
26	anything in the 8MHz-30MHz range and the exact value should be
27	retrieved from the board schematics. Or in the case of Allwinner
28	hardware, it can be usually found as 'lcd_xtal_freq' variable in
29	FEX files. It can be also set to 0 for selecting PCLK from the
30	parallel LCD interface instead of TX_CLK as the PLL clock source.
31
32config VIDEO_LCD_SSD2828_RESET
33	string "RESET pin of SSD2828"
34	depends on VIDEO_LCD_SSD2828
35	default ""
36	---help---
37	The reset pin of SSD2828 chip. This takes a string in the format
38	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
39
40config VIDEO_LCD_HITACHI_TX18D42VM
41	bool "Hitachi tx18d42vm LVDS LCD panel support"
42	depends on VIDEO
43	default n
44	---help---
45	Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a
46	lcd controller which needs to be initialized over SPI, once that is
47	done they work like a regular LVDS panel.
48
49config VIDEO_LCD_SPI_CS
50	string "SPI CS pin for LCD related config job"
51	depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
52	default ""
53	---help---
54	This is one of the SPI communication pins, involved in setting up a
55	working LCD configuration. The exact role of SPI may differ for
56	different hardware setups. The option takes a string in the format
57	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
58
59config VIDEO_LCD_SPI_SCLK
60	string "SPI SCLK pin for LCD related config job"
61	depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
62	default ""
63	---help---
64	This is one of the SPI communication pins, involved in setting up a
65	working LCD configuration. The exact role of SPI may differ for
66	different hardware setups. The option takes a string in the format
67	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
68
69config VIDEO_LCD_SPI_MOSI
70	string "SPI MOSI pin for LCD related config job"
71	depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
72	default ""
73	---help---
74	This is one of the SPI communication pins, involved in setting up a
75	working LCD configuration. The exact role of SPI may differ for
76	different hardware setups. The option takes a string in the format
77	understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H.
78
79config VIDEO_LCD_SPI_MISO
80	string "SPI MISO pin for LCD related config job (optional)"
81	depends on VIDEO_LCD_SSD2828
82	default ""
83	---help---
84	This is one of the SPI communication pins, involved in setting up a
85	working LCD configuration. The exact role of SPI may differ for
86	different hardware setups. If wired up, this pin may provide additional
87	useful functionality. Such as bi-directional communication with the
88	hardware and LCD panel id retrieval (if the panel can report it). The
89	option takes a string in the format understood by 'name_to_gpio'
90	function, e.g. PH1 for pin 1 of port H.
91