commit 6596afd48af4d07c8b454849b2fe7e628974f3ef
author Alex Deucher <alexander.deucher@amd.com> Wed Jun 26 00:15:24 2013 -0400
committer Alex Deucher <alexander.deucher@amd.com> Thu Jun 27 19:15:44 2013 -0400
tree 4a6a081ef0f3b6cc96afc36c65ff502129072bd1
parent dc50ba7f9a6d9a920409892c7f30bce266067345

drm/radeon/kms: add dpm support for btc (v3)

This adds dpm support for btc asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: attempt to fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon_asic.h

diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index c9a17e0..c41a545 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -536,6 +536,12 @@
 int cypress_dpm_set_power_state(struct radeon_device *rdev);
 void cypress_dpm_display_configuration_changed(struct radeon_device *rdev);
 void cypress_dpm_fini(struct radeon_device *rdev);
+int btc_dpm_init(struct radeon_device *rdev);
+void btc_dpm_setup_asic(struct radeon_device *rdev);
+int btc_dpm_enable(struct radeon_device *rdev);
+void btc_dpm_disable(struct radeon_device *rdev);
+int btc_dpm_set_power_state(struct radeon_device *rdev);
+void btc_dpm_fini(struct radeon_device *rdev);
 
 /*
  * cayman