linux/Documentation/fb/sa1100fb.rst
Mauro Carvalho Chehab ab42b81895 docs: fb: convert docs to ReST and rename to *.rst
The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Also, removed the Maintained by, as requested by Geert.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-14 14:21:11 -06:00

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1.4 KiB
ReStructuredText

=================
What is sa1100fb?
=================
.. [This file is cloned from VesaFB/matroxfb]
This is a driver for a graphic framebuffer for the SA-1100 LCD
controller.
Configuration
==============
For most common passive displays, giving the option::
video=sa1100fb:bpp:<value>,lccr0:<value>,lccr1:<value>,lccr2:<value>,lccr3:<value>
on the kernel command line should be enough to configure the
controller. The bits per pixel (bpp) value should be 4, 8, 12, or
16. LCCR values are display-specific and should be computed as
documented in the SA-1100 Developer's Manual, Section 11.7. Dual-panel
displays are supported as long as the SDS bit is set in LCCR0; GPIO<9:2>
are used for the lower panel.
For active displays or displays requiring additional configuration
(controlling backlights, powering on the LCD, etc.), the command line
options may not be enough to configure the display. Adding sections to
sa1100fb_init_fbinfo(), sa1100fb_activate_var(),
sa1100fb_disable_lcd_controller(), and sa1100fb_enable_lcd_controller()
will probably be necessary.
Accepted options::
bpp:<value> Configure for <value> bits per pixel
lccr0:<value> Configure LCD control register 0 (11.7.3)
lccr1:<value> Configure LCD control register 1 (11.7.4)
lccr2:<value> Configure LCD control register 2 (11.7.5)
lccr3:<value> Configure LCD control register 3 (11.7.6)
Mark Huang <mhuang@livetoy.com>