In MDP5, CTL contains information of the whole pipeline whose
output goes down to a display interface. In various cases, one
interface may require 2 CRTCs, but only one CTL. Some interfaces
also require to use certain CTLs.

Instead of allocating CTL for each active CRTC, this change is to
associate a CTL with each interface.
Signed-off-by: NHai Li <hali@codeaurora.org>
Signed-off-by: NRob Clark <robdclark@gmail.com>

CRTCs in DSI command mode data path should wait for pingpong done,
instead of vblank, to finish atomic commit.

This change is to enable PP_DONE irq on command mode CRTCs and wait for
this irq happens before atomic commit completion.
Signed-off-by: NHai Li <hali@codeaurora.org>
Signed-off-by: NRob Clark <robdclark@gmail.com>

A few spots in the driver have support for downstream android
CONFIG_MSM_BUS_SCALING.  This is mainly to simplify backporting the
driver for various devices which do not have sufficient upstream
kernel support.  But the intentionally dead code seems to cause
some confusion.  Rename the #define to make this more clear.
Signed-off-by: NRob Clark <robdclark@gmail.com>

Signed-off-by: NRob Clark <robdclark@gmail.com>

This change adds the support in mdp5 kms driver for single
and dual DSI. Dual DSI case depends on the framework API
and sequence change to support dual data path.

v1: Initial change
v2: Address Rob Clark's comment
- Separate command mode encoder to a new file mdp5_cmd_encoder.c
- Rebase to not depend on msm_drm_sub_dev change
Signed-off-by: NHai Li <hali@codeaurora.org>
Signed-off-by: NRob Clark <robdclark@gmail.com>