[PATCH 0/6] arm64: ti: Use syscon for the Control Module

[Tomi Valkeinen]

I have been trying to get BeagleY-AI display support to upstream:

20260513-beagley-ai-display-v2-0-9e9bcefde6bc at ideasonboard.com

One difficulty has been the handling of the Control Module region, as
we need access to a single in that region, surrounded by registers for
other subsystems. In my series I made the related node a syscon, thus
allowing versatile access to the registers:

https://lore.kernel.org/all/20260513-beagley-ai-display-v2-14-9e9bcefde6bc@ideasonboard.com/

However, that's not a correct way to handle it. I realized we already
have ti,j721e-system-controller.yaml binding for older SoCs, which has
syscon but it's not used for the newer TI SoCs. This series takes the
same binding into use for the newer SoCs.

I think this is an ABI change, but I also think this is not an ABI
break. I hope people with more expertise in this area can confirm my
thoughts.

I believe we could drop the renaming patches, and just adjust the
ti,j721e-system-controller.yaml a bit more to accommodate the "wrong"
node names. But if there's no downside to the renames, I think it's nice
to have a more consistent naming.

 Tomi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
---
Tomi Valkeinen (6):
      arm64: dts: ti: j784s4/j742s2: Rename pcieN-ctrl nodes to pcie-ctrl
      arm64: dts: ti: k3-am62*: Rename 'clock-controller' to 'clock'
      arm64: dts: ti: k3-am62-main: Rename 'oldi-io-controller' to 'dss-oldi-io-ctrl'
      dt-bindings: soc: ti: ti,j721e-system-controller: Relax the bindings
      dt-bindings: soc: ti: ti,j721e-system-controller: Add more compatibles
      arm64: dts: ti: Use syscon and simple-mfd for the main conf region

 .../devicetree/bindings/soc/ti/ti,j721e-system-controller.yaml | 10 ++++++----
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi                       |  9 +++++----
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi                      |  7 ++++---
 arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi         |  6 +++---
 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-main-common.dtsi       |  6 +++---
 arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi                     |  4 ++--
 6 files changed, 23 insertions(+), 19 deletions(-)
---
base-commit: e7ae89a0c97ce2b68b0983cd01eda67cf373517d
change-id: 20260528-ti-main-conf-d75aea5e5c2b

Best regards,
--  
Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>