drm/komeda: Add event handling for EMPTY/FULL

EMPTY/FULL are HW input/output FIFO condition identifer, which are
useful information for addressing the problem, so expose them.

Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191212072737.30116-1-james.qian.wang@arm.com

drm/komeda: Enable new product D32 support

D32 is simple version of D71, the difference is:
- Only has one pipeline
- Drop the periph block and merge it to GCU

v2: Rebase.
v3: Isolate the block counting fix to a new patch

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191210084828.19664-3-james.qian.wang@arm.com

drm/komeda: Add line size support

On D71, we are using the global line size. From D32, every
component have a line size register to indicate the fifo size.

So this patch is to set line size support and do the line size
check.

Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190924080022.19250-2-lowry.li@arm.com

drm/komeda: Add d71_enum_resources and d71_cleanup

D71 consists of a number of Register Blocks, every Block controls a
specific HW function, every block has a common block_header to represent
its type and pipeline information.

GCU (Global Control Unit) is the first Block which describe the global
information of D71 HW, Like number of block contained and the number of
pipeline supported.

So the d71_enum_resources parsed GCU and create pipeline according
the GCU configuration, and then iterate and detect the blocks that
indicated by the GCU and block_header.

And this change also added two struct d71_dev/d71_pipeline to extend
komeda_dev/komeda_pipeline to add some d71 only members.

v2:
- Return the specific errno not -1.
- Use DRM_DEBUG as default debug msg printer.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>