linux-kernel - [PATCH V5 5/5] dt-bindings: clock: Convert i.MX6UL clock to json-schema

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Message-Id: <1589328684-1397-6-git-send-email-Anson.Huang@nxp.com>
Date:   Wed, 13 May 2020 08:11:24 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V5 5/5] dt-bindings: clock: Convert i.MX6UL clock to json-schema

Convert the i.MX6UL clock binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <Anson.Huang@....com>
Acked-by: Stephen Boyd <sboyd@...nel.org>
---
Changes since V4:
	- add descriptions for interrupts and each item of it.
---
 .../devicetree/bindings/clock/imx6ul-clock.txt     | 13 -----
 .../devicetree/bindings/clock/imx6ul-clock.yaml    | 66 ++++++++++++++++++++++
 2 files changed, 66 insertions(+), 13 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/imx6ul-clock.txt
 create mode 100644 Documentation/devicetree/bindings/clock/imx6ul-clock.yaml

diff --git a/Documentation/devicetree/bindings/clock/imx6ul-clock.txt b/Documentation/devicetree/bindings/clock/imx6ul-clock.txt
deleted file mode 100644
index 571d503..0000000
--- a/Documentation/devicetree/bindings/clock/imx6ul-clock.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-* Clock bindings for Freescale i.MX6 UltraLite
-
-Required properties:
-- compatible: Should be "fsl,imx6ul-ccm"
-- reg: Address and length of the register set
-- #clock-cells: Should be <1>
-- clocks: list of clock specifiers, must contain an entry for each required
-  entry in clock-names
-- clock-names: should include entries "ckil", "osc", "ipp_di0" and "ipp_di1"
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell.  See include/dt-bindings/clock/imx6ul-clock.h
-for the full list of i.MX6 UltraLite clock IDs.
diff --git a/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml b/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
new file mode 100644
index 0000000..3c779ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/imx6ul-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock bindings for Freescale i.MX6 UltraLite
+
+maintainers:
+  - Anson Huang <Anson.Huang@....com>
+
+properties:
+  compatible:
+    const: fsl,imx6ul-ccm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: CCM provides 2 interrupt requests, request 1 is to generate
+      interrupt for frequency or mux change, request 2 is to generate
+      interrupt for oscillator read or PLL lock.
+    items:
+      - description: CCM interrupt request 1
+      - description: CCM interrupt request 2
+    maxItems: 2
+
+  '#clock-cells':
+    const: 1
+
+  clocks:
+    items:
+      - description: 32k osc
+      - description: 24m osc
+      - description: ipp_di0 clock input
+      - description: ipp_di1 clock input
+
+  clock-names:
+    items:
+      - const: ckil
+      - const: osc
+      - const: ipp_di0
+      - const: ipp_di1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - '#clock-cells'
+  - clocks
+  - clock-names
+
+examples:
+  # Clock Control Module node:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    clock-controller@...4000 {
+        compatible = "fsl,imx6ul-ccm";
+        reg = <0x020c4000 0x4000>;
+        interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+        #clock-cells = <1>;
+        clocks = <&ckil>, <&osc>, <&ipp_di0>, <&ipp_di1>;
+        clock-names = "ckil", "osc", "ipp_di0", "ipp_di1";
+    };
-- 
2.7.4