| config VIDEO_VESA | |
| bool "Enable VESA video driver support" | |
| depends on X86 | |
| default n | |
| help | |
| Turn on this option to enable a very simple driver which uses vesa | |
| to discover the video mode and then provides a frame buffer for use | |
| by U-Boot. This can in principle be used with any platform that | |
| supports PCI and video cards that support VESA BIOS Extension (VBE). | |
| config VIDEO_LCD_SSD2828 | |
| bool "SSD2828 bridge chip" | |
| default n | |
| ---help--- | |
| Support for the SSD2828 bridge chip, which can take pixel data coming | |
| from a parallel LCD interface and translate it on the fly into MIPI DSI | |
| interface for driving a MIPI compatible LCD panel. It uses SPI for | |
| configuration. | |
| config VIDEO_LCD_SSD2828_TX_CLK | |
| int "SSD2828 TX_CLK frequency (in MHz)" | |
| depends on VIDEO_LCD_SSD2828 | |
| default 0 | |
| ---help--- | |
| The frequency of the crystal, which is clocking SSD2828. It may be | |
| anything in the 8MHz-30MHz range and the exact value should be | |
| retrieved from the board schematics. Or in the case of Allwinner | |
| hardware, it can be usually found as 'lcd_xtal_freq' variable in | |
| FEX files. It can be also set to 0 for selecting PCLK from the | |
| parallel LCD interface instead of TX_CLK as the PLL clock source. | |
| config VIDEO_LCD_SSD2828_RESET | |
| string "RESET pin of SSD2828" | |
| depends on VIDEO_LCD_SSD2828 | |
| default "" | |
| ---help--- | |
| The reset pin of SSD2828 chip. This takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_HITACHI_TX18D42VM | |
| bool "Hitachi tx18d42vm LVDS LCD panel support" | |
| depends on VIDEO | |
| default n | |
| ---help--- | |
| Support for Hitachi tx18d42vm LVDS LCD panels, these panels have a | |
| lcd controller which needs to be initialized over SPI, once that is | |
| done they work like a regular LVDS panel. | |
| config VIDEO_LCD_SPI_CS | |
| string "SPI CS pin for LCD related config job" | |
| depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. The option takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_SPI_SCLK | |
| string "SPI SCLK pin for LCD related config job" | |
| depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. The option takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_SPI_MOSI | |
| string "SPI MOSI pin for LCD related config job" | |
| depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. The option takes a string in the format | |
| understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. | |
| config VIDEO_LCD_SPI_MISO | |
| string "SPI MISO pin for LCD related config job (optional)" | |
| depends on VIDEO_LCD_SSD2828 | |
| default "" | |
| ---help--- | |
| This is one of the SPI communication pins, involved in setting up a | |
| working LCD configuration. The exact role of SPI may differ for | |
| different hardware setups. If wired up, this pin may provide additional | |
| useful functionality. Such as bi-directional communication with the | |
| hardware and LCD panel id retrieval (if the panel can report it). The | |
| option takes a string in the format understood by 'name_to_gpio' | |
| function, e.g. PH1 for pin 1 of port H. |