From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/Documentation/fb/sa1100fb.txt | 39 ++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 kernel/Documentation/fb/sa1100fb.txt (limited to 'kernel/Documentation/fb/sa1100fb.txt') diff --git a/kernel/Documentation/fb/sa1100fb.txt b/kernel/Documentation/fb/sa1100fb.txt new file mode 100644 index 000000000..f1b422046 --- /dev/null +++ b/kernel/Documentation/fb/sa1100fb.txt @@ -0,0 +1,39 @@ +[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:,lccr0:,lccr1:,lccr2:,lccr3: + +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: Configure for bits per pixel +lccr0: Configure LCD control register 0 (11.7.3) +lccr1: Configure LCD control register 1 (11.7.4) +lccr2: Configure LCD control register 2 (11.7.5) +lccr3: Configure LCD control register 3 (11.7.6) + +-- +Mark Huang -- cgit 1.2.3-korg