gxfb: add power management functionality

From d2e53f3c71afa8ffa93a748d15efb9b5d25b9b1b Mon Sep 17 00:00:00 2001
From: Andres Salomon <[email protected]>
Date: Tue, 26 Feb 2008 05:00:42 -0500
Subject: [PATCH] gxfb: add power management functionality

This adds the ability to suspend/resume the gxfb driver, which includes:
- The addition of a Graphics Processor register table in gxfb.h, and associated GP handling.
- Register and palette saving code; registers are stored in gxfb_par. A few MSR values are saved as well.
- gx_powerup and gx_powerdown functions which restore/save registers and enable/disable graphic engines.
- gxfb_suspend/gxfb_resume

Originally based on a patch by Jordan Crouse.

---
 drivers/video/geode/Makefile     |    2 +-
 drivers/video/geode/gxfb.h       |   64 +++++++++
 drivers/video/geode/gxfb_core.c  |   63 +++++++++
 drivers/video/geode/suspend_gx.c |  264 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 392 insertions(+), 1 deletions(-)
 create mode 100644 drivers/video/geode/suspend_gx.c

index 957304b..5c98da1 100644
@@ -5,5 +5,5 @@ obj-$(CONFIG_FB_GEODE_GX)  += gxfb.o
 obj-$(CONFIG_FB_GEODE_LX)  += lxfb.o
 
 gx1fb-objs := gx1fb_core.o display_gx1.o video_cs5530.o
-gxfb-objs  := gxfb_core.o display_gx.o video_gx.o
+gxfb-objs  := gxfb_core.o display_gx.o video_gx.o suspend_gx.o
 lxfb-objs  := lxfb_core.o lxfb_ops.o

1.5.3.7


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