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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/fb/pxafb.txt
downloadconfigs-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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!
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+Driver for PXA25x LCD controller
+================================
+
+The driver supports the following options, either via
+options=<OPTIONS> when modular or video=pxafb:<OPTIONS> when built in.
+
+For example:
+ modprobe pxafb options=mode:640x480-8,passive
+or on the kernel command line
+ video=pxafb:mode:640x480-8,passive
+
+mode:XRESxYRES[-BPP]
+ XRES == LCCR1_PPL + 1
+ YRES == LLCR2_LPP + 1
+ The resolution of the display in pixels
+ BPP == The bit depth. Valid values are 1, 2, 4, 8 and 16.
+
+pixclock:PIXCLOCK
+ Pixel clock in picoseconds
+
+left:LEFT == LCCR1_BLW + 1
+right:RIGHT == LCCR1_ELW + 1
+hsynclen:HSYNC == LCCR1_HSW + 1
+upper:UPPER == LCCR2_BFW
+lower:LOWER == LCCR2_EFR
+vsynclen:VSYNC == LCCR2_VSW + 1
+ Display margins and sync times
+
+color | mono => LCCR0_CMS
+ umm...
+
+active | passive => LCCR0_PAS
+ Active (TFT) or Passive (STN) display
+
+single | dual => LCCR0_SDS
+ Single or dual panel passive display
+
+4pix | 8pix => LCCR0_DPD
+ 4 or 8 pixel monochrome single panel data
+
+hsync:HSYNC
+vsync:VSYNC
+ Horizontal and vertical sync. 0 => active low, 1 => active
+ high.
+
+dpc:DPC
+ Double pixel clock. 1=>true, 0=>false
+
+outputen:POLARITY
+ Output Enable Polarity. 0 => active low, 1 => active high
+
+pixclockpol:POLARITY
+ pixel clock polarity
+ 0 => falling edge, 1 => rising edge