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
