diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/fb/pxafb.txt |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'Documentation/fb/pxafb.txt')
-rw-r--r-- | Documentation/fb/pxafb.txt | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/fb/pxafb.txt b/Documentation/fb/pxafb.txt new file mode 100644 index 000000000000..db9b8500b43b --- /dev/null +++ b/Documentation/fb/pxafb.txt | |||
@@ -0,0 +1,54 @@ | |||
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 | ||