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Date: Thu, 5 Dec 2019 10:11:20 +0530
From: Sandeep Maheswaram <sanm@...eaurora.org>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Kishon Vijay Abraham I <kishon@...com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Stephen Boyd <swboyd@...omium.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, Manu Gautam <mgautam@...eaurora.org>,
Sandeep Maheswaram <sanm@...eaurora.org>
Subject: [PATCH v2 2/3] dt-bindings: phy: qcom-qusb2: Convert QUSB2 phy bindings to yaml
Convert QUSB2 phy bindings to DT schema format using json-schema.
Signed-off-by: Sandeep Maheswaram <sanm@...eaurora.org>
---
.../devicetree/bindings/phy/qcom-qusb2-phy.txt | 68 -----------
.../devicetree/bindings/phy/qcom-qusb2-phy.yaml | 129 +++++++++++++++++++++
2 files changed, 129 insertions(+), 68 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
create mode 100644 Documentation/devicetree/bindings/phy/qcom-qusb2-phy.yaml
diff --git a/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
deleted file mode 100644
index fe29f9e..0000000
--- a/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-Qualcomm QUSB2 phy controller
-=============================
-
-QUSB2 controller supports LS/FS/HS usb connectivity on Qualcomm chipsets.
-
-Required properties:
- - compatible: compatible list, contains
- "qcom,msm8996-qusb2-phy" for 14nm PHY on msm8996,
- "qcom,msm8998-qusb2-phy" for 10nm PHY on msm8998,
- "qcom,sdm845-qusb2-phy" for 10nm PHY on sdm845.
-
- - reg: offset and length of the PHY register set.
- - #phy-cells: must be 0.
-
- - clocks: a list of phandles and clock-specifier pairs,
- one for each entry in clock-names.
- - clock-names: must be "cfg_ahb" for phy config clock,
- "ref" for 19.2 MHz ref clk,
- "iface" for phy interface clock (Optional).
-
- - vdda-pll-supply: Phandle to 1.8V regulator supply to PHY refclk pll block.
- - vdda-phy-dpdm-supply: Phandle to 3.1V regulator supply to Dp/Dm port signals.
-
- - resets: Phandle to reset to phy block.
-
-Optional properties:
- - nvmem-cells: Phandle to nvmem cell that contains 'HS Tx trim'
- tuning parameter value for qusb2 phy.
-
- - qcom,tcsr-syscon: Phandle to TCSR syscon register region.
- - qcom,imp-res-offset-value: It is a 6 bit value that specifies offset to be
- added to PHY refgen RESCODE via IMP_CTRL1 register. It is a PHY
- tuning parameter that may vary for different boards of same SOC.
- This property is applicable to only QUSB2 v2 PHY (sdm845).
- - qcom,hstx-trim-value: It is a 4 bit value that specifies tuning for HSTX
- output current.
- Possible range is - 15mA to 24mA (stepsize of 600 uA).
- See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
- This property is applicable to only QUSB2 v2 PHY (sdm845).
- Default value is 22.2mA for sdm845.
- - qcom,preemphasis-level: It is a 2 bit value that specifies pre-emphasis level.
- Possible range is 0 to 15% (stepsize of 5%).
- See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
- This property is applicable to only QUSB2 v2 PHY (sdm845).
- Default value is 10% for sdm845.
-- qcom,preemphasis-width: It is a 1 bit value that specifies how long the HSTX
- pre-emphasis (specified using qcom,preemphasis-level) must be in
- effect. Duration could be half-bit of full-bit.
- See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
- This property is applicable to only QUSB2 v2 PHY (sdm845).
- Default value is full-bit width for sdm845.
-
-Example:
- hsusb_phy: phy@...1000 {
- compatible = "qcom,msm8996-qusb2-phy";
- reg = <0x7411000 0x180>;
- #phy-cells = <0>;
-
- clocks = <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
- <&gcc GCC_RX1_USB2_CLKREF_CLK>,
- clock-names = "cfg_ahb", "ref";
-
- vdda-pll-supply = <&pm8994_l12>;
- vdda-phy-dpdm-supply = <&pm8994_l24>;
-
- resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
- nvmem-cells = <&qusb2p_hstx_trim>;
- };
diff --git a/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.yaml b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.yaml
new file mode 100644
index 0000000..3ef94bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/qcom-qusb2-phy.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm QUSB2 phy controller
+
+maintainers:
+ - Manu Gautam <mgautam@...eaurora.org>
+
+description: |
+ QUSB2 controller supports LS/FS/HS usb connectivity on Qualcomm chipsets.
+
+properties:
+ compatible:
+ enum:
+ - qcom,msm8996-qusb2-phy
+ - qcom,msm8998-qusb2-phy
+ - qcom,sdm845-qusb2-phy
+
+ reg:
+ description:
+ offset and length of the PHY register set.
+
+ "#phy-cells":
+ const: 0
+
+ clocks:
+ maxItems: 3
+ description:
+ a list of phandles and clock-specifier pairs,
+ one for each entry in clock-names.
+
+ clock-names:
+ items:
+ - const: cfg_ahb #phy config clock
+ - const: ref #19.2 MHz ref clk
+ - const: iface #phy interface clock (Optional)
+
+ vdda-pll-supply:
+ description:
+ Phandle to 1.8V regulator supply to PHY refclk pll block.
+
+ vdda-phy-dpdm-supply:
+ description:
+ Phandle to 3.1V regulator supply to Dp/Dm port signals.
+
+ resets:
+ description:
+ Phandle to reset to phy block.
+
+ nvmem-cells:
+ description:
+ Phandle to nvmem cell that contains 'HS Tx trim'
+ tuning parameter value for qusb2 phy.
+
+ qcom,tcsr-syscon:
+ description:
+ Phandle to TCSR syscon register region.
+ $ref: /schemas/types.yaml#/definitions/cell
+
+ qcom,imp-res-offset-value:
+ description:
+ It is a 6 bit value that specifies offset to be
+ added to PHY refgen RESCODE via IMP_CTRL1 register. It is a PHY
+ tuning parameter that may vary for different boards of same SOC.
+ This property is applicable to only QUSB2 v2 PHY (sdm845).
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ qcom,hstx-trim-value:
+ description:
+ It is a 4 bit value that specifies tuning for HSTX
+ output current.
+ Possible range is - 15mA to 24mA (stepsize of 600 uA).
+ See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
+ This property is applicable to only QUSB2 v2 PHY (sdm845).
+ Default value is 22.2mA for sdm845.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ qcom,preemphasis-level:
+ description:
+ It is a 2 bit value that specifies pre-emphasis level.
+ Possible range is 0 to 15% (stepsize of 5%).
+ See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
+ This property is applicable to only QUSB2 v2 PHY (sdm845).
+ Default value is 10% for sdm845.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ qcom,preemphasis-width:
+ description:
+ It is a 1 bit value that specifies how long the HSTX
+ pre-emphasis (specified using qcom,preemphasis-level) must be in
+ effect. Duration could be half-bit of full-bit.
+ See dt-bindings/phy/phy-qcom-qusb2.h for applicable values.
+ This property is applicable to only QUSB2 v2 PHY (sdm845).
+ Default value is full-bit width for sdm845.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - reg
+ - "#phy-cells"
+ - clocks
+ - clock-names
+ - vdda-pll-supply
+ - vdda-phy-dpdm-supply
+ - resets
+
+
+examples:
+ - |
+ hsusb_phy: phy@...1000 {
+ compatible = "qcom,msm8996-qusb2-phy";
+ reg = <0x7411000 0x180>;
+ #phy-cells = <0>;
+
+ clocks = <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
+ <&gcc GCC_RX1_USB2_CLKREF_CLK>,
+ clock-names = "cfg_ahb", "ref";
+
+ vdda-pll-supply = <&pm8994_l12>;
+ vdda-phy-dpdm-supply = <&pm8994_l24>;
+
+ resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
+ nvmem-cells = <&qusb2p_hstx_trim>;
+
+ };
--
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of Code Aurora Forum, hosted by The Linux Foundation
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