aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/fb/pxafb.txt
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.txt54
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 @@
1Driver for PXA25x LCD controller
2================================
3
4The driver supports the following options, either via
5options=<OPTIONS> when modular or video=pxafb:<OPTIONS> when built in.
6
7For example:
8 modprobe pxafb options=mode:640x480-8,passive
9or on the kernel command line
10 video=pxafb:mode:640x480-8,passive
11
12mode: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
18pixclock:PIXCLOCK
19 Pixel clock in picoseconds
20
21left:LEFT == LCCR1_BLW + 1
22right:RIGHT == LCCR1_ELW + 1
23hsynclen:HSYNC == LCCR1_HSW + 1
24upper:UPPER == LCCR2_BFW
25lower:LOWER == LCCR2_EFR
26vsynclen:VSYNC == LCCR2_VSW + 1
27 Display margins and sync times
28
29color | mono => LCCR0_CMS
30 umm...
31
32active | passive => LCCR0_PAS
33 Active (TFT) or Passive (STN) display
34
35single | dual => LCCR0_SDS
36 Single or dual panel passive display
37
384pix | 8pix => LCCR0_DPD
39 4 or 8 pixel monochrome single panel data
40
41hsync:HSYNC
42vsync:VSYNC
43 Horizontal and vertical sync. 0 => active low, 1 => active
44 high.
45
46dpc:DPC
47 Double pixel clock. 1=>true, 0=>false
48
49outputen:POLARITY
50 Output Enable Polarity. 0 => active low, 1 => active high
51
52pixclockpol:POLARITY
53 pixel clock polarity
54 0 => falling edge, 1 => rising edge