Merge tag 'samsung-clk-6.14' of https://git.kernel.org/pub/scm/linux/…

…kernel/git/krzk/linux into clk-samsung

Pull Samsung clk driver updates from Krzysztof Kozlowski:

 - Add clock controller driver for Exynos990 SoC

* tag 'samsung-clk-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  clk: samsung: Introduce Exynos990 clock controller driver
  clk: samsung: clk-pll: Add support for pll_{0717x, 0718x, 0732x}
  dt-bindings: clock: samsung: Add Exynos990 SoC CMU bindings

Documentation/devicetree/bindings/clock/samsung,exynos990-clock.yaml

@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,exynos990-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos990 SoC clock controller
+
+maintainers:
+  - Igor Belwon <igor.belwon@mentallysanemainliners.org>
+  - Chanwoo Choi <cw00.choi@samsung.com>
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+  Exynos990 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. The root clock in that root tree
+  is an external clock: OSCCLK (26 MHz). This external clock must be defined
+  as a 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,exynos990.h' header.
+
+properties:
+  compatible:
+    enum:
+      - samsung,exynos990-cmu-hsi0
+      - samsung,exynos990-cmu-top
+
+  clocks:
+    minItems: 1
+    maxItems: 5
+
+  clock-names:
+    minItems: 1
+    maxItems: 5
+
+  "#clock-cells":
+    const: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - "#clock-cells"
+  - reg
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynos990-cmu-hsi0
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (26 MHz)
+            - description: CMU_HSI0 BUS clock (from CMU_TOP)
+            - description: CMU_HSI0 USB31DRD clock (from CMU_TOP)
+            - description: CMU_HSI0 USBDP_DEBUG clock (from CMU_TOP)
+            - description: CMU_HSI0 DPGTC clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: bus
+            - const: usb31drd
+            - const: usbdp_debug
+            - const: dpgtc
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynos990-cmu-top
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (26 MHz)
+
+        clock-names:
+          items:
+            - const: oscclk
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/samsung,exynos990.h>
+
+    cmu_hsi0: clock-controller@10a00000 {
+        compatible = "samsung,exynos990-cmu-hsi0";
+        reg = <0x10a00000 0x8000>;
+        #clock-cells = <1>;
+
+        clocks = <&oscclk>,
+                 <&cmu_top CLK_DOUT_CMU_HSI0_BUS>,
+                 <&cmu_top CLK_DOUT_CMU_HSI0_USB31DRD>,
+                 <&cmu_top CLK_DOUT_CMU_HSI0_USBDP_DEBUG>,
+                 <&cmu_top CLK_DOUT_CMU_HSI0_DPGTC>;
+        clock-names = "oscclk",
+                      "bus",
+                      "usb31drd",
+                      "usbdp_debug",
+                      "dpgtc";
+    };
+
+...

drivers/clk/samsung/Makefile

@@ -21,6 +21,7 @@ obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos7.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos7885.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos850.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos8895.o
+obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynos990.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynosautov9.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-exynosautov920.o
 obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK)	+= clk-gs101.o