video: tegra: dc: add list of preferred formats

Move WinB's format limitations to a list of preferred formats.

Bug 985197

Change-Id: Ife37c79441b2737592ace51e94ab0c80af4af917
Signed-off-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-on: http://git-master/r/102629
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Chao Xu <cxu@nvidia.com>
Reviewed-by: Robert Morell <rmorell@nvidia.com>
Reviewed-by: Michael Frydrych <mfrydrych@nvidia.com>
Reviewed-by: Kevin Huang (Eng-SW) <kevinh@nvidia.com>
cpufreq: Don't clip PM QoS requests to old policy limits

Clipping PM QoS requests to combined old policy limits that include
both PM QoS and user policy requests creates a circular dependency.
As a result new PM QoS maximum limit is rejected if it is above
previous PM QoS minimum limit even though the new PM QoS minimum
limit has been already lowered below new PM QoS maximum limit.

Instead clip PM QoS request to the old user policy limits only.

Change-Id: Ice0a53a699e0798f07f0e32d6b8a28586fe5db0c
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: http://git-master/r/102386
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Donghan Ryu <dryu@nvidia.com>
Reviewed-by: Antti Miettinen <amiettinen@nvidia.com>
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Tested-by: Vikas Ramesh Kedigehalli <vikasr@nvidia.com>
ARM: tegra: Modify tegra_apb functions

Make tegra_apb_readl() , tegra_apb_writel()
T20 only

Bug 950116

Change-Id: I75601bebaee14ed2e217a16c0e46fb2910c421c8
Signed-off-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-on: http://git-master/r/102712
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
video: tegra: host: remove nvhost_channel from nvhost_master

- nvhost_master holds a reference to all the channels for
a chip architecture
- however, nvhost_master is a private data of host1x hardware
device. so it should contain only members needed by host1x
hardware device
- add chip specific apis to allocate and free channels
- this will also help to remove the static binding between
nvhost_device and a channel per SoC in future

Bug 871237

Change-Id: I2148db57b995b4cb60954ebb6e670f588552eca4
Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-on: http://git-master/r/91687
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

Conflicts:
	drivers/video/tegra/host/dev.c
	drivers/video/tegra/host/dev.h
	drivers/video/tegra/host/t20/t20.c
	drivers/video/tegra/host/t30/t30.c