MIPS: JZ4780 and CI20 HDMI

PATCH V7 2021-11-23 18:46:23:
- changed gpio polarity of hdmi_power to 0 (suggested by paul@crapouillou.net)
- fixed LCD1 irq number (bug found by paul@crapouillou.net)
- removed "- 4" for calculating max_register (suggested by paul@crapouillou.net)
- use unevaluatedPropertes instead of additionalProperties (suggested by robh@kernel.org)
- moved and renamed ingenic,jz4780-hdmi.yaml (suggested by robh@kernel.org)
- adjusted assigned-clocks changes to upstream which added some for SSI (by hns@goldelico.com)
- rebased and tested with v5.16-rc2 + patch set drm/ingenic by paul@crapouillou.net (by hns@goldelico.com)

PATCH V6 2021-11-10 20:43:33:
- changed CONFIG_DRM_INGENIC_DW_HDMI to "m" (by hns@goldelico.com)
- made ingenic-dw-hdmi an independent platform driver which can be compiled as module
  and removed error patch fixes for IPU (suggested by paul@crapouillou.net)
- moved assigned-clocks from jz4780.dtsi to ci20.dts (suggested by paul@crapouillou.net)
- fixed reg property in jz4780.dtsi to cover all registers incl. gamma and vee (by hns@goldelico.com)
- added a base patch to calculate regmap size from DTS reg property (requested by paul@crapouillou.net)
- restored resetting all bits except one in LCDOSDC (requested by paul@crapouillou.net)
- clarified setting of cpos (suggested by paul@crapouillou.net)
- moved bindings definition for ddc-i2c-bus (suggested by paul@crapouillou.net)
- simplified mask definitions for JZ_LCD_DESSIZE (requested by paul@crapouillou.net)
- removed setting alpha premultiplication (suggested by paul@crapouillou.net)
- removed some comments (suggested by paul@crapouillou.net)

PATCH V5 2021-10-05 14:28:44:
- dropped mode_fixup and timings support in dw-hdmi as it is no longer needed in this V5 (by hns@goldelico.com)
- dropped "drm/ingenic: add some jz4780 specific features" (stimulated by paul@crapouillou.net)
- fixed typo in commit subject: "synopsis" -> "synopsys" (by hns@goldelico.com)
- swapped clocks in jz4780.dtsi to match synopsys,dw-hdmi.yaml (by hns@goldelico.com)
- improved, simplified, fixed, dtbschecked ingenic-jz4780-hdmi.yaml and made dependent of bridge/synopsys,dw-hdmi.yaml (based on suggestions by maxime@cerno.tech)
- fixed binding vs. driver&DTS use of hdmi-5v regulator (suggested by maxime@cerno.tech)
- dropped "drm/bridge: synopsis: Fix to properly handle HPD" - was a no longer needed workaround for a previous version
  (suggested by maxime@cerno.tech)

PATCH V4 2021-09-27 18:44:38:
- fix setting output_port = 1 (issue found by paul@crapouillou.net)
- ci20.dts: convert to use hdmi-connector (by hns@goldelico.com)
- add a hdmi-regulator to control +5V power (by hns@goldelico.com)
- added a fix to dw-hdmi to call drm_kms_helper_hotplug_event on plugin event detection (by hns@goldelico.com)
- always allocate extended descriptor but initialize only for jz4780 (by hns@goldelico.com)
- updated to work on top of "[PATCH v3 0/6] drm/ingenic: Various improvements v3" (by paul@crapouillou.net)
- rebased to v5.13-rc3

PATCH V3 2021-08-08 07:10:50:
This series adds HDMI support for JZ4780 and CI20 board (and fixes one IPU related issue in registration error path)
- [patch 1/8] switched from mode_fixup to atomic_check (suggested by robert.foss@linaro.org)
  - the call to the dw-hdmi specialization is still called mode_fixup
- [patch 3/8] diverse fixes for ingenic-drm-drv (suggested by paul@crapouillou.net)
  - factor out some non-HDMI features of the jz4780 into a separate patch
  - multiple fixes around max height
  - do not change regmap config but a copy on stack
  - define some constants
  - factor out fixing of drm_init error path for IPU into separate patch
  - use FIELD_PREP()
- [patch 8/8] conversion to component framework dropped (suggested by Laurent.pinchart@ideasonboard.com and paul@crapouillou.net)

PATCH V2 2021-08-05 16:08:05:
- code and commit messages revisited for checkpatch warnings
- rebased on v5.14-rc4
- include (failed, hence RFC 8/8) attempt to convert to component framework
  (was suggested by Paul Cercueil <paul@crapouillou.net> a while ago)

This series adds HDMI support for JZ4780 and CI20 board



H. Nikolaus Schaller (3):
  drm/ingenic: prepare ingenic drm for later addition of JZ4780
  MIPS: defconfig: CI20: configure for DRM_DW_HDMI_JZ4780
  [RFC] MIPS: DTS: Ingenic: adjust register size to available registers

Paul Boddie (4):
  drm/ingenic: Add support for JZ4780 and HDMI output
  drm/ingenic: Add dw-hdmi driver for jz4780
  MIPS: DTS: jz4780: Account for Synopsys HDMI driver and LCD
    controllers
  MIPS: DTS: CI20: Add DT nodes for HDMI setup

Sam Ravnborg (1):
  dt-bindings: display: Add ingenic,jz4780-dw-hdmi DT Schema

 .../display/bridge/ingenic,jz4780-hdmi.yaml   |  76 +++++++++++
 .../display/bridge/synopsys,dw-hdmi.yaml      |   3 +
 arch/mips/boot/dts/ingenic/ci20.dts           |  83 ++++++++++-
 arch/mips/boot/dts/ingenic/jz4725b.dtsi       |   2 +-
 arch/mips/boot/dts/ingenic/jz4740.dtsi        |   2 +-
 arch/mips/boot/dts/ingenic/jz4770.dtsi        |   2 +-
 arch/mips/boot/dts/ingenic/jz4780.dtsi        |  40 ++++++
 arch/mips/configs/ci20_defconfig              |   6 +
 drivers/gpu/drm/ingenic/Kconfig               |   9 ++
 drivers/gpu/drm/ingenic/Makefile              |   1 +
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c     |  62 ++++++++-
 drivers/gpu/drm/ingenic/ingenic-drm.h         |  38 ++++++
 drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c     | 129 ++++++++++++++++++
 13 files changed, 444 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
 create mode 100644 drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c

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2.33.0