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[2/2] dt-bindings: clock: samsung: convert Exynos4 to dtschema

Message ID 20210809130935.80565-3-krzysztof.kozlowski@canonical.com
State New
Headers show
Series dt-bindings: clock: samsung: more conversions | expand

Commit Message

Krzysztof Kozlowski Aug. 9, 2021, 1:09 p.m. UTC 
Merge Exynos4210 and Exynos4412 clock controller bindings to existing DT
schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
---
 .../bindings/clock/exynos4-clock.txt          | 86 -------------------
 .../bindings/clock/samsung,exynos-clock.yaml  | 29 ++++++-
 2 files changed, 28 insertions(+), 87 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/exynos4-clock.txt
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Patch

diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
deleted file mode 100644
index 17bb11365354..000000000000
--- a/Documentation/devicetree/bindings/clock/exynos4-clock.txt
+++ /dev/null
@@ -1,86 +0,0 @@ 
-* Samsung Exynos4 Clock Controller
-
-The Exynos4 clock controller generates and supplies clock to various controllers
-within the Exynos4 SoC. The clock binding described here is applicable to all
-SoC's in the Exynos4 family.
-
-Required Properties:
-
-- compatible: should be one of the following.
-  - "samsung,exynos4210-clock" - controller compatible with Exynos4210 SoC.
-  - "samsung,exynos4412-clock" - controller compatible with Exynos4412 SoC.
-
-- reg: physical base address of the controller and length of memory mapped
-  region.
-
-- #clock-cells: should be 1.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume.
-
-All available clocks are defined as preprocessor macros in
-dt-bindings/clock/exynos4.h header and can be used in device
-tree sources.
-
-Example 1: An example of a clock controller node is listed below.
-
-	clock: clock-controller@10030000 {
-		compatible = "samsung,exynos4210-clock";
-		reg = <0x10030000 0x20000>;
-		#clock-cells = <1>;
-	};
-
-Example 2: UART controller node that consumes the clock generated by the clock
-	   controller. Refer to the standard clock bindings for information
-	   about 'clocks' and 'clock-names' property.
-
-	serial@13820000 {
-		compatible = "samsung,exynos4210-uart";
-		reg = <0x13820000 0x100>;
-		interrupts = <0 54 0>;
-		clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>;
-		clock-names = "uart", "clk_uart_baud0";
-	};
-
-Exynos4412 SoC contains some additional clocks for FIMC-ISP (Camera ISP)
-subsystem. Registers for those clocks are located in the ISP power domain.
-Because those registers are also located in a different memory region than
-the main clock controller, a separate clock controller has to be defined for
-handling them.
-
-Required Properties:
-
-- compatible: should be "samsung,exynos4412-isp-clock".
-
-- reg: physical base address of the ISP clock controller and length of memory
-  mapped region.
-
-- #clock-cells: should be 1.
-
-- clocks: list of the clock controller input clock identifiers,
-  from common clock bindings, should point to CLK_ACLK200 and
-  CLK_ACLK400_MCUISP clocks from the main clock controller.
-
-- clock-names: list of the clock controller input clock names,
-  as described in clock-bindings.txt, should be "aclk200" and
-  "aclk400_mcuisp".
-
-- power-domains: a phandle to ISP power domain node as described by
-  generic PM domain bindings.
-
-Example 3: The clock controllers bindings for Exynos4412 SoCs.
-
-	clock: clock-controller@10030000 {
-		compatible = "samsung,exynos4412-clock";
-		reg = <0x10030000 0x18000>;
-		#clock-cells = <1>;
-	};
-
-	isp_clock: clock-controller@10048000 {
-		compatible = "samsung,exynos4412-isp-clock";
-		reg = <0x10048000 0x1000>;
-		#clock-cells = <1>;
-		power-domains = <&pd_isp>;
-		clocks = <&clock CLK_ACLK200>, <&clock CLK_ACLK400_MCUISP>;
-		clock-names = "aclk200", "aclk400_mcuisp";
-	};
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml
index c7b07fcd3fa1..ea73201f259b 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos-clock.yaml
@@ -23,6 +23,9 @@  properties:
           - samsung,exynos3250-cmu
           - samsung,exynos3250-cmu-dmc
           - samsung,exynos3250-cmu-isp
+          - samsung,exynos4210-clock
+          - samsung,exynos4412-clock
+          - samsung,exynos4412-isp-clock
           - samsung,exynos5250-clock
           - samsung,exynos5420-clock
           - samsung,exynos5800-clock
@@ -35,11 +38,18 @@  properties:
   assigned-clocks: true
   assigned-clock-parents: true
   assigned-clock-rates: true
-  clocks: true
+  clocks:
+    description: |
+      For samsung,exynos4412-isp-clock, the input clocks should be CLK_ACLK200
+      and CLK_ACLK400_MCUISP from the main clock controller.
+
+  clock-names: true
 
   "#clock-cells":
     const: 1
 
+  power-domains: true
+
   reg:
     maxItems: 1
 
@@ -50,6 +60,23 @@  required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: samsung,exynos4412-isp-clock
+    then:
+      properties:
+        clock-names:
+          items:
+            - const: aclk200
+            - const: aclk400_mcuisp
+      required:
+        - clocks
+        - clock-names
+        - power-domains
+
 examples:
   - |
     #include <dt-bindings/clock/exynos5250.h>