[PATCH] dt-bindings: i2c: qcom,i2c-qup: convert to dtschema

[Robert Marko]

Convert DT bindings for Qualcomm QUP I2C controller to DT schema format.

Old text bindings were missing usage of DMA so that was documented, as
well as the max clock-frequency.

Signed-off-by: Robert Marko <robimarko@xxxxxxxxx>
---
 .../devicetree/bindings/i2c/qcom,i2c-qup.txt  | 40 ---------
 .../devicetree/bindings/i2c/qcom,i2c-qup.yaml | 83 +++++++++++++++++++
 2 files changed, 83 insertions(+), 40 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt
 create mode 100644 Documentation/devicetree/bindings/i2c/qcom,i2c-qup.yaml

diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt
deleted file mode 100644
index dc71754a56af..000000000000
--- a/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-Qualcomm Universal Peripheral (QUP) I2C controller
-
-Required properties:
- - compatible: Should be:
-   * "qcom,i2c-qup-v1.1.1" for 8660, 8960 and 8064.
-   * "qcom,i2c-qup-v2.1.1" for 8974 v1.
-   * "qcom,i2c-qup-v2.2.1" for 8974 v2 and later.
- - reg: Should contain QUP register address and length.
- - interrupts: Should contain I2C interrupt.
-
- - clocks: A list of phandles + clock-specifiers, one for each entry in
-   clock-names.
- - clock-names: Should contain:
-   * "core" for the core clock
-   * "iface" for the AHB clock
-
- - #address-cells: Should be <1> Address cells for i2c device address
- - #size-cells: Should be <0> as i2c addresses have no size component
-
-Optional properties:
- - clock-frequency: Should specify the desired i2c bus clock frequency in Hz,
-                    defaults to 100kHz if omitted.
-
-Child nodes should conform to i2c bus binding.
-
-Example:
-
- i2c@f9924000 {
- 	compatible = "qcom,i2c-qup-v2.2.1";
- 	reg = <0xf9924000 0x1000>;
- 	interrupts = <0 96 0>;
-
- 	clocks = <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>, <&gcc GCC_BLSP1_AHB_CLK>;
- 	clock-names = "core", "iface";
-
- 	clock-frequency = <355000>;
-
- 	#address-cells = <1>;
- 	#size-cells = <0>;
- };
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.yaml
new file mode 100644
index 000000000000..097962a90e62
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-qup.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/qcom,i2c-qup.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Universal Peripheral (QUP) I2C controller Device Tree Bindings
+
+maintainers:
+  - Robert Marko <robimarko@xxxxxxxxx>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - qcom,i2c-qup-v1.1.1
+          - qcom,i2c-qup-v2.1.1
+          - qcom,i2c-qup-v2.2.1
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: QUP I2C core clock
+      - description: AHB bus clock
+
+  clock-names:
+    items:
+      - const: core
+      - const: iface
+
+  clock-frequency:
+    default: 100000
+    maximum: 1000000
+    description: Desired i2c bus clock frequency in Hz, defaults to 100kHz if omitted.
+
+  dmas:
+    items:
+      - description: RX DMA Channel
+      - description: TX DMA Channel
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - '#address-cells'
+  - '#size-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,gcc-ipq8074.h>
+
+    i2c@78ba000 {
+      compatible = "qcom,i2c-qup-v2.2.1";
+      #address-cells = <1>;
+      #size-cells = <0>;
+      reg = <0x078ba000 0x600>;
+      interrupts = <GIC_SPI 300 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&gcc GCC_BLSP1_QUP6_I2C_APPS_CLK>,
+               <&gcc GCC_BLSP1_AHB_CLK>;
+      clock-names = "core", "iface";
+      clock-frequency = <100000>;
+      dmas = <&blsp_dma 23>, <&blsp_dma 22>;
+      dma-names = "rx", "tx";
+    };
+...
-- 
2.36.1