[PATCH v4 1/8] dt-bindings: phy: Add qcom,snps-eusb2-phy schema file

Abel Vesa
2023-02-02T13:25:20Z

The SM8550 SoC uses Synopsis eUSB2 PHY. Add a dt-binding schema
for the new driver.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---

The v3 version of this patch was here:
https://lore.kernel.org/all/20230126131415.1453741-2-abel.vesa@linaro.org/

Changes since v3:
* removed blank line, like Rob suggested
* dropped quotes and reset description, like Rob suggested
* dropped the RPMH_CXO_PAD_CLK clock and the ref_src clock name
to match the schema
* fixed filenames of the includes in the example (sm8550-gcc and
sm8550-tcsr)

Changes since v2:
* none

Changes since v1:
* dropped the "ref src" clock
* dropped the usb-repeater property

.../bindings/phy/qcom,snps-eusb2-phy.yaml | 74 +++++++++++++++++++
1 file changed, 74 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml
new file mode 100644
index 000000000000..de72577e34a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-phy.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,snps-eusb2-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SNPS eUSB2 phy controller
+
+maintainers:
+ - Abel Vesa <abel.vesa@linaro.org>
+
+description:
+ eUSB2 controller supports LS/FS/HS usb connectivity on Qualcomm chipsets.
+
+properties:
+ compatible:
+ const: qcom,sm8550-snps-eusb2-phy
+
+ reg:
+ maxItems: 1
+
+ "#phy-cells":
+ const: 0
+
+ clocks:
+ items:
+ - description: ref
+
+ clock-names:
+ items:
+ - const: ref
+
+ resets:
+ maxItems: 1
+
+ vdd-supply:
+ description:
+ Phandle to 0.88V regulator supply to PHY digital circuit.
+
+ vdda12-supply:
+ description:
+ Phandle to 1.2V regulator supply to PHY refclk pll block.
+
+required:
+ - compatible
+ - reg
+ - "#phy-cells"
+ - clocks
+ - clock-names
+ - vdd-supply
+ - vdda12-supply
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,sm8550-gcc.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/clock/qcom,sm8550-tcsr.h>
+
+ usb_1_hsphy: phy@88e3000 {
+ compatible = "qcom,sm8550-snps-eusb2-phy";
+ reg = <0x88e3000 0x154>;
+ #phy-cells = <0>;
+
+ clocks = <&tcsrcc TCSR_USB2_CLKREF_EN>;
+ clock-names = "ref";
+
+ vdd-supply = <&vreg_l1e_0p88>;
+ vdda12-supply = <&vreg_l3e_1p2>;
+
+ resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
+ };
--
2.34.1