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- [This file is cloned from VesaFB/matroxfb]
- What is sa1100fb?
- =================
- 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>
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