[PATCH v9 0/2] Add Meta(Facebook) ventura2 BMC(AST2600)

Summary:
Add linux device tree entry related to Meta(Facebook) ventura2.
specific devices connected to BMC(AST2600) SoC.

Signed-off-by: Kyle Hsieh <[email protected]>
---
Changes in v9:
- Rebased onto the `aspeed/arm/dt` branch of `bmc/linux.git` to resolve merge conflicts.
- Resolved all formatting issues flagged by `dt-check-style --mode strict`, including:
  - Fixed 'mixed-indent-chars' and 'continuation-alignment' issues.
  - Sorted properties and nodes into canonical order.
  - Removed unused labels. 
- Resolved DT schema binding warnings reported by `make CHECK_DTBS=y`:
  - Removed invalid `channel@X` subnodes from the `maxim,max31790` fan controller.
  - Dropped the deprecated `aspeed,hw-timeout-ms` property from the I2C bus.
  - Removed the incomplete `ti,ads1015` ADC and generic `pmbus` power monitor nodes to comply with upstream schemas.
- Corrected the compatible string for the 40-bit I/O expanders from `nxp,pca9698` to `nxp,pca9505`.
- Link to v8: https://lore.kernel.org/r/[email protected]

Changes in v8:
- Addressed review comments from Andrew Lunn:
  * Added a detailed comment to the Marvell 88E6393X EEPROM node to clarify its hardware I2C multiplexer isolation and out-of-band firmware update mechanism, explaining why there is no concurrent access or multi-master scenario.
- Link to v7: https://lore.kernel.org/r/[email protected]

Changes in v7:
- Updated the commit message to include a detailed description of the Ventura2 platform's purpose and its key hardware features.
- Fix comments from Andrew Jeffery:
  * Ensured consistent blank lines to separate child nodes from parent properties and from each other throughout the DTS.
  * Sorted fan nodes in ascending order.
  * Replaced '//' comments with '/* */' block comments.
- Fix feedback from Sashiko AI:
  * Added 'idle-state = <6>;' to the PCA9548 mux on i2c4.
- Link to v6: https://lore.kernel.org/r/[email protected]

Changes in v6:
- Addressed automated feedback from Sashiko bot:
  * Clarified comments that io_expander0 and io_expander8 physically share the same interrupt line (Wired-OR) by hardware design.
  * Removed leading zeros from unit addresses in DAC nodes (dac@c, dac@e, dac@f).
  * Removed unused properties from the adc@48 node.
- Link to v5: https://lore.kernel.org/r/[email protected]

Changes in v5:
- Addressed review comments:
  * Added comments explaining the necessity of 'legacy_' prefixes (hardware label collision), pre-allocated I2C aliases (future expansions), and the 'ledd1' naming convention (schematic alignment).
  * Removed the empty `&mdio0` node to comply with upstream networking subsystem guidelines.
  * Removed the redundant `&peci0` node.
  * Sorted `&kcs3` and `&lpc_ctrl` nodes in strict alphabetical order.
- Hardware/DT alignment updates:
  * Removed unpopulated sensors (adi,adt7461, infineon,tda38640, ti,ina230, ti,ina238) to accurately reflect the current board population.
  * Added the secondary flash node (flash@1 labeled "e810") under the &spi2 bus.
- Link to v4: https://lore.kernel.org/r/[email protected]

Changes in v4:
- Fixed capitalization: "ventura2" -> "Ventura2".
- Reordered I2C child nodes in ascending order of unit addresses.
- Enable PECI, LPC control, and KCS3 interfaces for host communication.
- Configure MCTP controller on I2C4 and enable MCTP support for specific mux channels.
- Add Infineon TDA38640 and TI INA230 power monitor nodes.
- GPIO and Pinmux cleanup for PVT:
    - Aligned gpio-line-names as requested.
    - Remove unused or non-existent GPIO line names to align with Ventura2 PVT.
    - Update specific GPIO pins to empty strings where signals were removed or consolidated.
- Adjust SGPIOM frequency to 200kHz and update signal line names.
- Enable UART3 and add serial2 alias.
- Link to v3: https://lore.kernel.org/r/[email protected]

Changes in v3:
- Add annotation for marvel 88e6393x
- Modify the gpio-line-name
- Modify the node order alphabetically
- Modify dt-bindings document for rmc instead of bmc
- Move the gpio-line-names to original node
- Link to v2: https://lore.kernel.org/r/[email protected]

Changes in v2:
- Remove unused mdio
- Link to v1: https://lore.kernel.org/r/[email protected]

---
Kyle Hsieh (2):
      dt-bindings: arm: aspeed: add Meta ventura2 board
      ARM: dts: aspeed: ventura2: Add Meta ventura2 BMC

 .../devicetree/bindings/arm/aspeed/aspeed.yaml     |    1 +
 arch/arm/boot/dts/aspeed/Makefile                  |    1 +
 .../dts/aspeed/aspeed-bmc-facebook-ventura2.dts    | 3005 ++++++++++++++++++++
 3 files changed, 3007 insertions(+)
---
base-commit: 749c34389679f8d56cb200a69b62f9a64670034f
change-id: 20251222-ventura2_initial_dts-909b3277d665

Best regards,
-- 
Kyle Hsieh <[email protected]>