| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | Driver for PXA25x LCD controller |
| 2 | ================================ |
| 3 | |
| 4 | The driver supports the following options, either via |
| 5 | options=<OPTIONS> when modular or video=pxafb:<OPTIONS> when built in. |
| 6 | |
| 7 | For example: |
| 8 | modprobe pxafb options=mode:640x480-8,passive |
| 9 | or on the kernel command line |
| 10 | video=pxafb:mode:640x480-8,passive |
| 11 | |
| 12 | mode:XRESxYRES[-BPP] |
| 13 | XRES == LCCR1_PPL + 1 |
| 14 | YRES == LLCR2_LPP + 1 |
| 15 | The resolution of the display in pixels |
| 16 | BPP == The bit depth. Valid values are 1, 2, 4, 8 and 16. |
| 17 | |
| 18 | pixclock:PIXCLOCK |
| 19 | Pixel clock in picoseconds |
| 20 | |
| 21 | left:LEFT == LCCR1_BLW + 1 |
| 22 | right:RIGHT == LCCR1_ELW + 1 |
| 23 | hsynclen:HSYNC == LCCR1_HSW + 1 |
| 24 | upper:UPPER == LCCR2_BFW |
| 25 | lower:LOWER == LCCR2_EFR |
| 26 | vsynclen:VSYNC == LCCR2_VSW + 1 |
| 27 | Display margins and sync times |
| 28 | |
| 29 | color | mono => LCCR0_CMS |
| 30 | umm... |
| 31 | |
| 32 | active | passive => LCCR0_PAS |
| 33 | Active (TFT) or Passive (STN) display |
| 34 | |
| 35 | single | dual => LCCR0_SDS |
| 36 | Single or dual panel passive display |
| 37 | |
| 38 | 4pix | 8pix => LCCR0_DPD |
| 39 | 4 or 8 pixel monochrome single panel data |
| 40 | |
| 41 | hsync:HSYNC |
| 42 | vsync:VSYNC |
| 43 | Horizontal and vertical sync. 0 => active low, 1 => active |
| 44 | high. |
| 45 | |
| 46 | dpc:DPC |
| 47 | Double pixel clock. 1=>true, 0=>false |
| 48 | |
| 49 | outputen:POLARITY |
| 50 | Output Enable Polarity. 0 => active low, 1 => active high |
| 51 | |
| 52 | pixclockpol:POLARITY |
| 53 | pixel clock polarity |
| 54 | 0 => falling edge, 1 => rising edge |