commit 49e02b7306cb7e01965fe5f41ba0f80085142f6e
author Alex Deucher <alexdeucher@gmail.com> Fri Apr 23 17:57:27 2010 -0400
committer Dave Airlie <airlied@redhat.com> Tue May 18 18:21:12 2010 +1000
tree 6faaa8069fae9b4768d727274df94c2a5298b1b2
parent 58e21dff53b9063563e7bb5f5a795ab2d8f61dda

drm/radeon/kms/pm: add additional asic callbacks

- pm_misc() - handles voltage, pcie lanes, and other non
clock related power mode settings.  Currently disabled.
Needs further debugging

- pm_prepare() - disables crtc mem requests right now.
All memory clients need to be disabled when changing
memory clocks.  This function can be expanded to include
disabling fb access as well.

- pm_finish() - enable active memory clients.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/r500_reg.h

diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h
index 0cf2ad2..f5adf42 100644
--- a/drivers/gpu/drm/radeon/r500_reg.h
+++ b/drivers/gpu/drm/radeon/r500_reg.h
@@ -347,6 +347,7 @@
 
 #define AVIVO_D1CRTC_CONTROL                                    0x6080
 #       define AVIVO_CRTC_EN                                    (1 << 0)
+#       define AVIVO_CRTC_DISP_READ_REQUEST_DISABLE             (1 << 24)
 #define AVIVO_D1CRTC_BLANK_CONTROL                              0x6084
 #define AVIVO_D1CRTC_INTERLACE_CONTROL                          0x6088
 #define AVIVO_D1CRTC_INTERLACE_STATUS                           0x608c