tegra-video: add CSI support for Tegra20 and Tegra30

Add support for MIPI CSI device found in Tegra20 and Tegra30 SoC along
with a set of changes required for that.

---
Changes in v2:
- vi_sensor gated through csus
- TEGRA30_CLK_CLK_MAX moved to clk-tegra30
- adjusted commit titles and messages
- clk_register_clkdev dropped from pad clock registration
- removed tegra30-vi/vip and used tegra20 fallback
- added separate csi schema for tegra20-csi and tegra30-csi
- fixet number of VI channels
- adjusted tegra_vi_out naming
- fixed yuv_input_format to main_input_format
- MIPI calibration refsctored for Tegra114+ and added support for
  pre-Tegra114 to use CSI as a MIPI calibration device
- switched ENOMEM to EBUSY
- added check into tegra_channel_get_remote_csi_subdev
- moved avdd-dsi-csi-supply into CSI
- next_fs_sp_idx > next_fs_sp_value
- removed host1x_syncpt_incr from framecounted syncpoint
- csi subdev request moved before frame cycle

Changes in v3:
- tegra20 and tegra30 csi schema merged
- removed unneeded properties and requirements from schema
- improved vendor specific properties description
- added tegra20 csus parent mux
- improved commit descriptions
- redesigned MIPI-calibration to expose less SoC related data into header
- commit "staging: media: tegra-video: csi: add support for SoCs with integrated
  MIPI calibration" dropped as unneeded
- improved tegra_channel_get_remote_device_subdev logic
- avdd-dsi-csi-supply moved from vi to csi for p2597 and p3450-0000
- software syncpoint counters switched to direct reading
- adjusted planar formats offset calculation

Changes in v4:
- removed ifdefs from tegra_mipi_driver
- document Tegra132 MIPI calibration device
- switched to use BIT macro in tegra114-mipi
- pinctrl changes moved to a separate patch
- ERESTARTSYS workaround preserved for now
- tegra_mipi_add_provider replaced with devm_tegra_mipi_add_provider
- reworked bytesperline and sizeimage calculaion

Changes in v5:
- dropped patch 1/24 of v4 since it was picked to pinctrl tree
- added reasoning for tegra132 comaptible into commit desctiption
- moved clocks into common section in tegra20-csi schema
- added note regarding ERESTARTSYS

Changes in v6:
- dropped patches 1, 2, 3, 4, 10, 13, 21, 22 of v5 since they were picked
- rebased on top of linux next/master
- improved description of commit
  "staging: media: tegra-video: vi: adjust get_selection operation check"
---

Svyatoslav Ryhel (15):
  staging: media: tegra-video: expand VI and VIP support to Tegra30
  staging: media: tegra-video: vi: adjust get_selection operation check
  staging: media: tegra-video: vi: add flip controls only if no source
    controls are provided
  staging: media: tegra-video: csi: move CSI helpers to header
  gpu: host1x: convert MIPI to use operation function pointers
  staging: media: tegra-video: vi: improve logic of source requesting
  staging: media: tegra-video: csi: move avdd-dsi-csi-supply from VI to
    CSI
  staging: media: tegra-video: tegra20: set correct maximum width and
    height
  staging: media: tegra-video: tegra20: add support for second output of
    VI
  staging: media: tegra-video: tegra20: adjust format align calculations
  staging: media: tegra-video: tegra20: set VI HW revision
  staging: media: tegra-video: tegra20: increase maximum VI clock
    frequency
  staging: media: tegra-video: tegra20: expand format support with
    RAW8/10 and YUV422/YUV420p 1X16
  staging: media: tegra-video: tegra20: adjust luma buffer stride
  staging: media: tegra-video: add CSI support for Tegra20 and Tegra30

 drivers/gpu/drm/tegra/dsi.c                 |   1 +
 drivers/gpu/host1x/Makefile                 |   1 +
 drivers/gpu/host1x/mipi.c                   | 525 ++-----------
 drivers/gpu/host1x/tegra114-mipi.c          | 483 ++++++++++++
 drivers/staging/media/tegra-video/Makefile  |   1 +
 drivers/staging/media/tegra-video/csi.c     |  64 +-
 drivers/staging/media/tegra-video/csi.h     |  22 +
 drivers/staging/media/tegra-video/tegra20.c | 820 +++++++++++++++++---
 drivers/staging/media/tegra-video/vi.c      |  58 +-
 drivers/staging/media/tegra-video/vi.h      |   6 +-
 drivers/staging/media/tegra-video/video.c   |   8 +-
 drivers/staging/media/tegra-video/vip.c     |   2 +-
 drivers/staging/media/tegra-video/vip.h     |   2 +-
 include/linux/host1x.h                      |  10 -
 include/linux/tegra-mipi-cal.h              |  57 ++
 15 files changed, 1415 insertions(+), 645 deletions(-)
 create mode 100644 drivers/gpu/host1x/tegra114-mipi.c
 create mode 100644 include/linux/tegra-mipi-cal.h

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2.51.0