[PATCH v2] dt-bindings: phy: convert Qualcomm USB HS phy to yaml

David Heidelberg
2021-12-30T00:07:49Z

Conversion of Qualcomm USB HS phy documentation to yaml.

Signed-off-by: David Heidelberg <david@ixit.cz>
---
v2:
- changed uint8 array to matrix
- improved clock-names check
- move reset-names items, adjust DTS files later
- added clocks and resets min and maxItems
- if'ed resets, since apq8064 doesn't have phy reset
---
.../bindings/phy/qcom,usb-hs-phy.txt | 84 --------------
.../bindings/phy/qcom,usb-hs-phy.yaml | 108 ++++++++++++++++++
2 files changed, 108 insertions(+), 84 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt
create mode 100644 Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt
deleted file mode 100644
index b3b75c1e6285..000000000000
--- a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-Qualcomm's USB HS PHY
-
-PROPERTIES
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: Should contain "qcom,usb-hs-phy" and more specifically one of the
- following:
-
- "qcom,usb-hs-phy-apq8064"
- "qcom,usb-hs-phy-msm8916"
- "qcom,usb-hs-phy-msm8974"
-
-- #phy-cells:
- Usage: required
- Value type: <u32>
- Definition: Should contain 0
-
-- clocks:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Should contain clock specifier for the reference and sleep
- clocks
-
-- clock-names:
- Usage: required
- Value type: <stringlist>
- Definition: Should contain "ref" and "sleep" for the reference and sleep
- clocks respectively
-
-- resets:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Should contain the phy and POR resets
-
-- reset-names:
- Usage: required
- Value type: <stringlist>
- Definition: Should contain "phy" and "por" for the phy and POR resets
- respectively
-
-- v3p3-supply:
- Usage: required
- Value type: <phandle>
- Definition: Should contain a reference to the 3.3V supply
-
-- v1p8-supply:
- Usage: required
- Value type: <phandle>
- Definition: Should contain a reference to the 1.8V supply
-
-- extcon:
- Usage: optional
- Value type: <prop-encoded-array>
- Definition: Should contain the vbus extcon
-
-- qcom,init-seq:
- Usage: optional
- Value type: <u8 array>
- Definition: Should contain a sequence of ULPI address and value pairs to
- program into the ULPI_EXT_VENDOR_SPECIFIC area. This is related
- to Device Mode Eye Diagram test. The addresses are offsets
- from the ULPI_EXT_VENDOR_SPECIFIC address, for example,
- <0x1 0x53> would mean "write the value 0x53 to address 0x81".
-
-EXAMPLE
-
-otg: usb-controller {
- ulpi {
- phy {
- compatible = "qcom,usb-hs-phy-msm8974", "qcom,usb-hs-phy";
- #phy-cells = <0>;
- clocks = <&xo_board>, <&gcc GCC_USB2A_PHY_SLEEP_CLK>;
- clock-names = "ref", "sleep";
- resets = <&gcc GCC_USB2A_PHY_BCR>, <&otg 0>;
- reset-names = "phy", "por";
- v3p3-supply = <&pm8941_l24>;
- v1p8-supply = <&pm8941_l6>;
- extcon = <&smbb>;
- qcom,init-seq = /bits/ 8 <0x1 0x63>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml
new file mode 100644
index 000000000000..a60386bd19b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.yaml
@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,usb-hs-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's USB HS PHY binding description
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,usb-hs-phy-apq8064
+ then:
+ properties:
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: por
+
+ else:
+ properties:
+ resets:
+ minItems: 2
+ maxItems: 2
+
+ reset-names:
+ items:
+ - const: phy
+ - const: por
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,usb-hs-phy-apq8064
+ - qcom,usb-hs-phy-msm8916
+ - qcom,usb-hs-phy-msm8974
+ - const: qcom,usb-hs-phy
+
+ clocks:
+ minItems: 2
+ maxItems: 2
+
+ clock-names:
+ maxItems: 2
+ contains:
+ items:
+ - const: ref
+ - const: sleep
+
+ resets: true
+
+ reset-names: true
+
+ v1p8-supply: true
+
+ v3p3-supply: true
+
+ extcon: true
+
+ "#phy-cells":
+ const: 0
+
+ qcom,init-seq:
+ $ref: /schemas/types.yaml#/definitions/uint8-matrix
+ description: >
+ Sequence of ULPI address and value pairs to
+ program into the ULPI_EXT_VENDOR_SPECIFIC area.
+ This is related to Device Mode Eye Diagram test.
+ maxItems: 32 # no hard limit
+ items:
+ items:
+ - description: >
+ the address is offset from the ULPI_EXT_VENDOR_SPECIFIC address
+ - description: value
+
+required:
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ otg: usb-controller {
+ ulpi {
+ phy {
+ compatible = "qcom,usb-hs-phy-msm8974", "qcom,usb-hs-phy";
+ #phy-cells = <0>;
+ clocks = <&clk 0>, <&clk 258>;
+ clock-names = "ref", "sleep";
+ resets = <&gcc 10>, <&otg 0>;
+ reset-names = "phy", "por";
+ v3p3-supply = <&pm8941_l24>;
+ v1p8-supply = <&pm8941_l6>;
+ extcon = <&smbb>;
+ qcom,init-seq = /bits/ 8 <0x1 0x63>;
+ };
+ };
+ };
--
2.34.1