[PATCH v2 0/2] Add Amlogic A9 I3C support

[Junyi Zhao via B4 Relay <devnull+junyi.zhao.amlogic.com@kernel.org>]

Amlogic A9 SoCs integrate the Silvaco I3C IP, but their peripheral
clock setup differs from the original implementation: the EE-domain
controller (amlogic,a9-i3c) takes two clocks, "pclk" and "fast_clk",
while the AO-domain controller (amlogic,a9-ao-i3c) exposes only
"pclk" and derives its bus clock from an internal divider inside the
controller's own register region.

This series consists of:

  - Add a vendor_init callback for the clock setup and a
    vendor_quirks field for AO-specific behaviour to the Silvaco I3C
    master driver, and enable the existing Silvaco workaround quirks
    for both Amlogic variants.
  - Add the Amlogic compatibles and per-variant clock
    constraints to the silvaco,i3c-master binding schema.

Verified on Amlogic A9 (BY401) with both EE and AO controller
instances.  dt_binding_check and dtbs_check pass with this series.

Signed-off-by: Junyi Zhao <junyi.zhao@amlogic.com>
---
Changes in v2:

  - No need rework the Silvaco I3C driver. 
  - Based on vanilla driver, adapt A9 SoCS through callback 
    and quirks to handle the variant.

- Link to v1: https://patch.msgid.link/20261019-a9_i3c-v1-0-329d819d621f@amlogic.com

---
Junyi Zhao (2):
      i3c: master: svc: Add amlogic a9 support
      dt-bindings: i3c: silvaco,i3c-master: Add Amlogic A9 support

 .../bindings/i3c/silvaco,i3c-master.yaml           |  24 ++-
 drivers/i3c/master/svc-i3c-master.c                | 214 ++++++++++++++++++++-
 2 files changed, 231 insertions(+), 7 deletions(-)
---
base-commit: aac26bee2287c88af5be5a5ff96d783b19a28790
change-id: 20261010-a9_i3c-9d5245d094c8

Best regards,
--  
Junyi Zhao <junyi.zhao@amlogic.com>



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