Merge tag 'samsung-dt64-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/dt

Samsung DTS ARM64 changes for v6.12

1. Exynos7885: Correct amount of RAM on Samsung Galaxy A8.
2. ExynosAutov9: Add new DPUM clock controller and DPUM IOMMU (SysMMU).
3. ExynosAutov920: Add initial (incomplete) clock controllers: TOP and
   PERIC0 controllers.
4. Google GS101: Add reboot and poweroff support.
5. Add binding headers with clock IDs for several devices, used by the
   DTS.

* tag 'samsung-dt64-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  arm64: dts: exynosautov920: add initial CMU clock nodes in ExynosAuto v920
  dt-bindings: clock: add ExynosAuto v920 SoC CMU bindings
  arm64: dts: exynosautov9: Add dpum SysMMU
  arm64: dts: exynosautov9: add dpum clock DT nodes
  dt-bindings: clock: exynosautov9: add dpum clock
  dt-bindings: clock: exynos7885: Add indices for USB clocks
  dt-bindings: clock: exynos7885: Add CMU_TOP PLL MUX indices
  dt-bindings: clock: exynos7885: Fix duplicated binding
  dt-bindings: clock: exynos850: Add TMU clock
  arm64: dts: exynos: gs101: add syscon-poweroff and syscon-reboot nodes
  arm64: dts: exynos: exynos7885-jackpotlte: Correct RAM amount to 4GB

Link: https://lore.kernel.org/r/20240827121638.29707-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 181 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
index 55c4f94a14d1..32f39e543b36 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
@@ -35,6 +35,7 @@ properties:
       - samsung,exynosautov9-cmu-top
       - samsung,exynosautov9-cmu-busmc
       - samsung,exynosautov9-cmu-core
+      - samsung,exynosautov9-cmu-dpum
       - samsung,exynosautov9-cmu-fsys0
       - samsung,exynosautov9-cmu-fsys1
       - samsung,exynosautov9-cmu-fsys2
@@ -113,6 +114,24 @@ allOf:
       properties:
         compatible:
           contains:
+            const: samsung,exynosautov9-cmu-dpum
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (26 MHz)
+            - description: DPU Main bus clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: bus
+
+  - if:
+      properties:
+        compatible:
+          contains:
             const: samsung,exynosautov9-cmu-fsys0
 
     then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.yaml
new file mode 100644
index 000000000000..3330b2727474
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov920-clock.yaml
@@ -0,0 +1,162 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynosautov920-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung ExynosAuto v920 SoC clock controller
+
+maintainers:
+  - Sunyeal Hong <sunyeal.hong@samsung.com>
+  - Chanwoo Choi <cw00.choi@samsung.com>
+  - Krzysztof Kozlowski <krzk@kernel.org>
+  - Sylwester Nawrocki <s.nawrocki@samsung.com>
+
+description: |
+  ExynosAuto v920 clock controller is comprised of several CMU units, generating
+  clocks for different domains. Those CMU units are modeled as separate device
+  tree nodes, and might depend on each other. Root clocks in that clock tree are
+  two external clocks:: OSCCLK/XTCXO (38.4 MHz) and RTCCLK/XrtcXTI (32768 Hz).
+  The external OSCCLK must be defined as fixed-rate clock in dts.
+
+  CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
+  dividers; all other clocks of function blocks (other CMUs) are usually
+  derived from CMU_TOP.
+
+  Each clock is assigned an identifier and client nodes can use this identifier
+  to specify the clock which they consume. All clocks available for usage
+  in clock consumer nodes are defined as preprocessor macros in
+  'include/dt-bindings/clock/samsung,exynosautov920.h' header.
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynosautov920-cmu-top
+      - samsung,exynosautov920-cmu-peric0
+      - samsung,exynosautov920-cmu-peric1
+      - samsung,exynosautov920-cmu-misc
+      - samsung,exynosautov920-cmu-hsi0
+      - samsung,exynosautov920-cmu-hsi1
+
+  clocks:
+    minItems: 1
+    maxItems: 4
+
+  clock-names:
+    minItems: 1
+    maxItems: 4
+
+  "#clock-cells":
+    const: 1
+
+  reg:
+    maxItems: 1
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynosautov920-cmu-top
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (38.4 MHz)
+
+        clock-names:
+          items:
+            - const: oscclk
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynosautov920-cmu-peric0
+              - samsung,exynosautov920-cmu-peric1
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (38.4 MHz)
+            - description: CMU_PERICn NOC clock (from CMU_TOP)
+            - description: CMU_PERICn IP clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: noc
+            - const: ip
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - samsung,exynosautov920-cmu-misc
+            - samsung,exynosautov920-cmu-hsi0
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (38.4 MHz)
+            - description: CMU_MISC/CMU_HSI0 NOC clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: noc
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynosautov920-cmu-hsi1
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (38.4 MHz)
+            - description: CMU_HSI1 NOC clock (from CMU_TOP)
+            - description: CMU_HSI1 USBDRD clock (from CMU_TOP)
+            - description: CMU_HSI1 MMC_CARD clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: noc
+            - const: usbdrd
+            - const: mmc_card
+
+required:
+  - compatible
+  - "#clock-cells"
+  - clocks
+  - clock-names
+  - reg
+
+additionalProperties: false
+
+examples:
+  # Clock controller node for CMU_PERIC0
+  - |
+    #include <dt-bindings/clock/samsung,exynosautov920.h>
+
+    cmu_peric0: clock-controller@10800000 {
+        compatible = "samsung,exynosautov920-cmu-peric0";
+        reg = <0x10800000 0x8000>;
+        #clock-cells = <1>;
+
+        clocks = <&xtcxo>,
+                 <&cmu_top DOUT_CLKCMU_PERIC0_NOC>,
+                 <&cmu_top DOUT_CLKCMU_PERIC0_IP>;
+        clock-names = "oscclk",
+                      "noc",
+                      "ip";
+    };
+
+...