[PATCH v2 00/14] Renesas R-Car VSP: Add H3 ES2.0 support

[Laurent Pinchart]

Hello,

This patch series implements support for the R-Car H3 ES2.0 SoC in the VSP
and DU drivers.
 
Compared to the H3 ES1.1, the H3 ES2.0 has a new VSP2-DL instance that
includes two blending units, a BRU and a BRS. The BRS is similar to the BRU
but has two inputs only, and is used to service a second DU channel from the
same VSP through a second LIF instances connected to WPF.1.

The patch series starts with a small fixes and cleanups in patches 01/14 to
05/14. Patch 06/14 prepares the VSP driver for multiple DU channels support by
extending the DU-VSP API with an additional argument. Patches 07/14 to 10/14
gradually build H3 ES2.0 support on top of that by implementing all needed
features in the VSP driver.

So far the VSP driver always used headerless display lists when operating in
connection with the DU. This mode of operation is only available on WPF.0, so
support for regular display lists with headers when operating with the DU is
added in patch 11/14.

The remaining patches finally implement H3 ES2.0 support in the DU driver,
with support for VSP sharing implemented in patch 12/14, for H3 ES2.0 PLL in
patch 13/14 (by restricting the ES1.x workaround to ES1.x SoCs) and for RGB
output routing in patch 14/14.

Compared to v1, the series has gone under considerable changes. Testing
locally on H3 ES2.0 uncovered multiple issues in the previous partially tested
version, which have been fixed in additional patches. The following changes
can be noted in particular.

- New small cleanups in patches 02/14 to 05/14
- Pass the pipe index to vsp1_du_atomic_update() explicitly
- Rebase on top of the VSP-DU flicker fixes, resulting in a major rework of
  "v4l: vsp1: Add support for header display lists in continuous mode"
- New patches 09/14, 10/14 and 12/14 to support the previously untested VGA
  output

The series is based on top of Dave's latest drm-next branch as it depends on
patches merged by Dave for v4.13. It depends, for testing, on

- the sh-pfc-for-v4.13 branch from Geert's renesas-drivers tree
- the "[PATCH v2 0/2] R-Car H3 ES2.0 Salvator-X: Enable DU support in DT"
  patch series

For convenience, a branch merging this series with all dependencies is
available from

	git://linuxtv.org/pinchartl/media.git drm/next/h3-es2/merged

with the DT and driver series split in two branches respectively tagged
drm-h3-es2-dt-20170626 and drm-h3-es2-vsp-du-20170626.

The patches have been tested on the Lager, Salvator-X H3 ES1.x, Salvator-X
M3-W and Salvator-XS boards. All outputs have been tested using modetest
without any noticeable regression.

Laurent Pinchart (14):
  v4l: vsp1: Fill display list headers without holding dlm spinlock
  v4l: vsp1: Don't recycle active list at display start
  v4l: vsp1: Don't set WPF sink pointer
  v4l: vsp1: Store source and sink pointers as vsp1_entity
  v4l: vsp1: Don't create links for DRM pipeline
  v4l: vsp1: Add pipe index argument to the VSP-DU API
  v4l: vsp1: Add support for the BRS entity
  v4l: vsp1: Add support for new VSP2-BS, VSP2-DL and VSP2-D instances
  v4l: vsp1: Add support for multiple LIF instances
  v4l: vsp1: Add support for multiple DRM pipelines
  v4l: vsp1: Add support for header display lists in continuous mode
  drm: rcar-du: Support multiple sources from the same VSP
  drm: rcar-du: Restrict DPLL duty cycle workaround to H3 ES1.x
  drm: rcar-du: Configure DPAD0 routing through last group on Gen3

 drivers/gpu/drm/rcar-du/rcar_du_crtc.c    |  39 ++--
 drivers/gpu/drm/rcar-du/rcar_du_crtc.h    |   3 +
 drivers/gpu/drm/rcar-du/rcar_du_group.c   |  21 ++-
 drivers/gpu/drm/rcar-du/rcar_du_kms.c     |  91 ++++++++--
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c     |  37 ++--
 drivers/gpu/drm/rcar-du/rcar_du_vsp.h     |  10 +-
 drivers/media/platform/vsp1/vsp1.h        |   7 +-
 drivers/media/platform/vsp1/vsp1_bru.c    |  45 +++--
 drivers/media/platform/vsp1/vsp1_bru.h    |   4 +-
 drivers/media/platform/vsp1/vsp1_dl.c     | 205 +++++++++++++---------
 drivers/media/platform/vsp1/vsp1_dl.h     |   1 -
 drivers/media/platform/vsp1/vsp1_drm.c    | 283 +++++++++++++++---------------
 drivers/media/platform/vsp1/vsp1_drm.h    |  38 ++--
 drivers/media/platform/vsp1/vsp1_drv.c    | 115 ++++++++----
 drivers/media/platform/vsp1/vsp1_entity.c |  40 +++--
 drivers/media/platform/vsp1/vsp1_entity.h |   5 +-
 drivers/media/platform/vsp1/vsp1_lif.c    |   5 +-
 drivers/media/platform/vsp1/vsp1_lif.h    |   2 +-
 drivers/media/platform/vsp1/vsp1_pipe.c   |   7 +-
 drivers/media/platform/vsp1/vsp1_regs.h   |  46 +++--
 drivers/media/platform/vsp1/vsp1_video.c  |  63 ++++---
 drivers/media/platform/vsp1/vsp1_wpf.c    |   4 +-
 include/media/vsp1.h                      |  10 +-
 23 files changed, 676 insertions(+), 405 deletions(-)

-- 
Regards,

Laurent Pinchart