Add Device Tree hierarchy for Realtek Kent SoC family:

- kent.dtsi: base SoC layer
- rtd<variant>.dtsi: SoC variant layer
- rtd<variant>-<board>.dtsi: board layer
- rtd<variant>-<board>-<config>.dts: board configuration layer

Include RTD1501s Phantom EVB (8GB), RTD1861B Krypton EVB (8GB), and
RTD1920s Smallville EVB (4GB).

Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20260127071530.25426-3-eleanor15x@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Minor improvements in ARM64 DTS for v6.10

Fixes, which might have practical impact, however things were broken for
long enough to justify pushing it regular path:
1. ARM Juno: shorten node names for thermal zones, because Linux drivers
   have strict limit of 20 characters.
2. HiSilicon: correct size of GIC GICC address space and add missing
   GICH and GICV spaces, add cache info to properly describe cache
   topology and solve kernel boot warning.

Several cleanups:
1. Use capital "OR" for multiple licenses in SPDX.
2. Correct white-spaces for code readability.
3. Fix W=1 dtc compiler warnings, which should not have practical
   impact for Amazon, APM, Cavium, Realtek, Socionext Uniphier and
   Spreadtrum like:
    - missing unit addresses,
    - nodes not belonging to soc node,
    - not using generic node names,
    - few incorrect unit addresses.

* tag 'dt64-cleanup-6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt: (28 commits)
  arm64: dts: cavium: thunder2-99xx: drop redundant reg-names
  arm64: dts: amazon: alpine-v3: correct gic unit addresses
  arm64: dts: amazon: alpine-v3: drop cache nodes unit addresses
  arm64: dts: amazon: alpine-v3: add missing io-fabric unit addresses
  arm64: dts: amazon: alpine-v2: move non-MMIO node out of soc
  arm64: dts: amazon: alpine-v2: add missing io-fabric unit addresses
  arm64: dts: apm: shadowcat: move non-MMIO node out of soc
  arm64: dts: apm: storm: move non-MMIO node out of soc
  arm64: dts: cavium: correct unit addresses
  arm64: dts: cavium: move non-MMIO node out of soc
  arm64: dts: realtek: rtc16xx: add missing unit address to soc node
  arm64: dts: realtek: rtd139x: add missing unit address to soc node
  arm64: dts: realtek: rtd129x: add missing unit address to soc node
  arm64: dts: uniphier: ld20-global: drop audio codec port unit address
  arm64: dts: uniphier: ld20-global: use generic node name for audio-codec
  arm64: dts: uniphier: ld11-global: drop audio codec port unit address
  arm64: dts: uniphier: ld11-global: use generic node name for audio-codec
  arm64: dts: sharkl3: add missing unit addresses
  arm64: dts: whale2: add missing ap-apb unit address
  arm64: dts: sc9860: move GIC to soc node
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The "arm,armv8-pmuv3" compatible is intended only for s/w models. Primarily,
it doesn't provide any detail on uarch specific events.

There's still remaining cases for CPUs without any corresponding PMU
definition and for big.LITTLE systems which only have a single PMU node
(there should be one per core type).

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Bjorn Andersson <andersson@kernel.org>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Link: https://lore.kernel.org/r/20240417203853.3212103-1-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

"soc" node has "ranges" property thus add matching unit address to fix
dtc W=1 warnings:

  rtd16xx.dtsi:130.6-198.4: Warning (unit_address_vs_reg): /soc: node has a reg or ranges property, but no unit name

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240401140912.97157-3-krzk@kernel.org

"soc" node has "ranges" property thus add matching unit address to fix
dtc W=1 warnings:

  rtd139x.dtsi:50.6-120.4: Warning (unit_address_vs_reg): /soc: node has a reg or ranges property, but no unit name

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240401140912.97157-2-krzk@kernel.org

"soc" node has "ranges" property thus add matching unit address to fix
dtc W=1 warnings:

  rtd129x.dtsi:51.6-122.4: Warning (unit_address_vs_reg): /soc: node has a reg or ranges property, but no unit name

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240401140912.97157-1-krzk@kernel.org

As all level 2 and level 3 caches are unified, add required
cache-unified and cache-level properties to fix warnings like:

  rtd1293-ds418j.dtb: l2-cache: 'cache-level' is a required property
  rtd1293-ds418j.dtb: l2-cache: 'cache-unified' is a required property

Link: https://lore.kernel.org/r/20230421223151.115243-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Bindings expect UART/serial node names to be "serial".

Link: https://lore.kernel.org/r/20230123151514.369101-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Add syscon mfd nodes for SB2 and SCPU Wrapper to RTD16xx DT.

Acked-by: James Tai <james.tai@realtek.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>

Add syscon mfd nodes for SB2 and SCPU Wrapper to RTD139x DT.

Acked-by: James Tai <james.tai@realtek.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>