| Bin Meng | ade8127 | 2015-01-06 22:14:21 +0800 | [diff] [blame] | 1 | config VIDEO_X86 |
| 2 | bool "Enable x86 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. |
| Siarhei Siamashka | b8329ac | 2015-01-19 05:23:32 +0200 | [diff] [blame] | 9 | |
| 10 | config VIDEO_LCD_SSD2828 |
| 11 | bool "SSD2828 bridge chip" |
| 12 | default n |
| 13 | ---help--- |
| 14 | Support for the SSD2828 bridge chip, which can take pixel data coming |
| 15 | from a parallel LCD interface and translate it on the fly into MIPI DSI |
| 16 | interface for driving a MIPI compatible LCD panel. It uses SPI for |
| 17 | configuration. |
| 18 | |
| 19 | config VIDEO_LCD_SSD2828_TX_CLK |
| 20 | int "SSD2828 TX_CLK frequency (in MHz)" |
| 21 | depends on VIDEO_LCD_SSD2828 |
| Siarhei Siamashka | dddccd6 | 2015-01-19 05:23:35 +0200 | [diff] [blame^] | 22 | default 0 |
| Siarhei Siamashka | b8329ac | 2015-01-19 05:23:32 +0200 | [diff] [blame] | 23 | ---help--- |
| 24 | The frequency of the crystal, which is clocking SSD2828. It may be |
| 25 | anything in the 8MHz-30MHz range and the exact value should be |
| 26 | retrieved from the board schematics. Or in the case of Allwinner |
| 27 | hardware, it can be usually found as 'lcd_xtal_freq' variable in |
| Siarhei Siamashka | dddccd6 | 2015-01-19 05:23:35 +0200 | [diff] [blame^] | 28 | FEX files. It can be also set to 0 for selecting PCLK from the |
| 29 | parallel LCD interface instead of TX_CLK as the PLL clock source. |
| Siarhei Siamashka | b8329ac | 2015-01-19 05:23:32 +0200 | [diff] [blame] | 30 | |
| 31 | config VIDEO_LCD_SSD2828_RESET |
| 32 | string "RESET pin of SSD2828" |
| 33 | depends on VIDEO_LCD_SSD2828 |
| 34 | default "" |
| 35 | ---help--- |
| 36 | The reset pin of SSD2828 chip. This takes a string in the format |
| 37 | understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. |
| 38 | |
| 39 | config VIDEO_LCD_SPI_CS |
| 40 | string "SPI CS pin for LCD related config job" |
| 41 | depends on VIDEO_LCD_SSD2828 |
| 42 | default "" |
| 43 | ---help--- |
| 44 | This is one of the SPI communication pins, involved in setting up a |
| 45 | working LCD configuration. The exact role of SPI may differ for |
| 46 | different hardware setups. The option takes a string in the format |
| 47 | understood by 'name_to_gpio' function, e.g. PH1 for pin 1 of port H. |
| 48 | |
| 49 | config VIDEO_LCD_SPI_SCLK |
| 50 | string "SPI SCLK pin for LCD related config job" |
| 51 | depends on VIDEO_LCD_SSD2828 |
| 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 | |
| 59 | config VIDEO_LCD_SPI_MOSI |
| 60 | string "SPI MOSI pin for LCD related config job" |
| 61 | depends on VIDEO_LCD_SSD2828 |
| 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 | |
| 69 | config VIDEO_LCD_SPI_MISO |
| 70 | string "SPI MISO pin for LCD related config job (optional)" |
| 71 | depends on VIDEO_LCD_SSD2828 |
| 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. If wired up, this pin may provide additional |
| 77 | useful functionality. Such as bi-directional communication with the |
| 78 | hardware and LCD panel id retrieval (if the panel can report it). The |
| 79 | option takes a string in the format understood by 'name_to_gpio' |
| 80 | function, e.g. PH1 for pin 1 of port H. |