drm/radeon/dpm: Clean up errors in trinity_dpm.h

Fix the following errors reported by checkpatch:

ERROR: open brace '{' following struct go on the same line

Signed-off-by: GuoHua Chen <chenguohua_716@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon/dpm: add bapm callback for trinity

This adds the enable_bapm callback for trinity.

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

drm/radeon/dpm: handle bapm on trinity

bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs. This
patch adds support for enabling or disabling it.
For now disable it by default. Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.

This patch fixes hangs on boot on certain trinity
laptops when the system is on battery power.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

drm/radeon/dpm: implement force performance level for TN

Allows you to force the selected performance level via sysfs.

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

drm/radeon/dpm: add pre/post_set_power_state callback (TN)

This properly implemented dynamic state adjustment by
using a working copy of the requested and current
power states.

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

drm/radeon/dpm: fixup dynamic state adjust for TN

Use a dedicated copy of the current power state since
we may have to adjust it on the fly.

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

drm/radeon: add dpm UVD handling for TN asics (v2)

v2: fix typo noticed by Dan Carpenter

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

drm/radeon/kms: add dpm support for trinity asics

This adds dpm support for trinity asics. This includes:
- clockgating
- powergating
- dynamic engine clock scaling
- dynamic voltage scaling

set radeon.dpm=1 to enable it.

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