[PATCH v3 15/30] dt-bindings: phy: add QMP UFS PHY schema

Johan Hovold
2022-07-14T12:45:48Z

The QMP PHY DT schema is getting unwieldy. Break out the UFS PHY
binding in a separate file.

Add an example node based on a cleaned up version of sc8280xp.dtsi.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
.../devicetree/bindings/phy/qcom,qmp-phy.yaml | 60 -------
.../bindings/phy/qcom,qmp-ufs-phy.yaml | 148 ++++++++++++++++++
2 files changed, 148 insertions(+), 60 deletions(-)
create mode 100644 Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
index 897dcd4f7dc9..21d6ec875529 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
@@ -19,32 +19,21 @@ properties:
enum:
- qcom,ipq6018-qmp-usb3-phy
- qcom,ipq8074-qmp-usb3-phy
- - qcom,msm8996-qmp-ufs-phy
- qcom,msm8996-qmp-usb3-phy
- - qcom,msm8998-qmp-ufs-phy
- qcom,msm8998-qmp-usb3-phy
- qcom,qcm2290-qmp-usb3-phy
- qcom,sc7180-qmp-usb3-phy
- - qcom,sc8180x-qmp-ufs-phy
- qcom,sc8180x-qmp-usb3-phy
- - qcom,sc8280xp-qmp-ufs-phy
- - qcom,sdm845-qmp-ufs-phy
- qcom,sdm845-qmp-usb3-phy
- qcom,sdm845-qmp-usb3-uni-phy
- qcom,sdx55-qmp-usb3-uni-phy
- qcom,sdx65-qmp-usb3-uni-phy
- - qcom,sm6115-qmp-ufs-phy
- - qcom,sm6350-qmp-ufs-phy
- - qcom,sm8150-qmp-ufs-phy
- qcom,sm8150-qmp-usb3-phy
- qcom,sm8150-qmp-usb3-uni-phy
- - qcom,sm8250-qmp-ufs-phy
- qcom,sm8250-qmp-usb3-phy
- qcom,sm8250-qmp-usb3-uni-phy
- - qcom,sm8350-qmp-ufs-phy
- qcom,sm8350-qmp-usb3-phy
- qcom,sm8350-qmp-usb3-uni-phy
- - qcom,sm8450-qmp-ufs-phy
- qcom,sm8450-qmp-usb3-phy

reg:
@@ -178,55 +167,6 @@ allOf:
required:
- vdda-phy-supply
- vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,msm8996-qmp-ufs-phy
- then:
- properties:
- clocks:
- maxItems: 1
- clock-names:
- items:
- - const: ref
- resets:
- maxItems: 1
- reset-names:
- items:
- - const: ufsphy
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,msm8998-qmp-ufs-phy
- - qcom,sc8180x-qmp-ufs-phy
- - qcom,sc8280xp-qmp-ufs-phy
- - qcom,sdm845-qmp-ufs-phy
- - qcom,sm6350-qmp-ufs-phy
- - qcom,sm8150-qmp-ufs-phy
- - qcom,sm8250-qmp-ufs-phy
- then:
- properties:
- clocks:
- maxItems: 2
- clock-names:
- items:
- - const: ref
- - const: ref_aux
- resets:
- maxItems: 1
- reset-names:
- items:
- - const: ufsphy
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- if:
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml
new file mode 100644
index 000000000000..e9dfed29e996
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,qmp-ufs-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QMP PHY controller (UFS)
+
+maintainers:
+ - Vinod Koul <vkoul@kernel.org>
+
+description:
+ QMP PHY controller supports physical layer functionality for a number of
+ controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
+
+properties:
+ compatible:
+ enum:
+ - qcom,msm8996-qmp-ufs-phy
+ - qcom,msm8998-qmp-ufs-phy
+ - qcom,sc8180x-qmp-ufs-phy
+ - qcom,sc8280xp-qmp-ufs-phy
+ - qcom,sdm845-qmp-ufs-phy
+ - qcom,sm6115-qmp-ufs-phy
+ - qcom,sm6350-qmp-ufs-phy
+ - qcom,sm8150-qmp-ufs-phy
+ - qcom,sm8250-qmp-ufs-phy
+ - qcom,sm8350-qmp-ufs-phy
+ - qcom,sm8450-qmp-ufs-phy
+
+ reg:
+ items:
+ - description: serdes
+
+ "#address-cells":
+ enum: [ 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ ranges: true
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ maxItems: 2
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: ufsphy
+
+ vdda-phy-supply: true
+
+ vdda-pll-supply: true
+
+ vddp-ref-clk-supply: true
+
+patternProperties:
+ "^phy@[0-9a-f]+$":
+ type: object
+ description: single PHY-provider child node
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - vdda-phy-supply
+ - vdda-pll-supply
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8996-qmp-ufs-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: ref
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8998-qmp-ufs-phy
+ - qcom,sc8180x-qmp-ufs-phy
+ - qcom,sc8280xp-qmp-ufs-phy
+ - qcom,sdm845-qmp-ufs-phy
+ - qcom,sm6350-qmp-ufs-phy
+ - qcom,sm8150-qmp-ufs-phy
+ - qcom,sm8250-qmp-ufs-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ items:
+ - const: ref
+ - const: ref_aux
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ phy-wrapper@1d87000 {
+ compatible = "qcom,sc8280xp-qmp-ufs-phy";
+ reg = <0x01d87000 0xe10>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x01d87000 0x1000>;
+
+ clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
+ clock-names = "ref", "ref_aux";
+
+ resets = <&ufs_mem_hc 0>;
+ reset-names = "ufsphy";
+
+ vdda-phy-supply = <&vreg_l6b>;
+ vdda-pll-supply = <&vreg_l3b>;
+
+ phy@400 {
+ reg = <0x400 0x108>,
+ <0x600 0x1e0>,
+ <0xc00 0x1dc>,
+ <0x800 0x108>,
+ <0xa00 0x1e0>;
+ #phy-cells = <0>;
+ };
+ };
--
2.35.1