From: Yulin Lu Date: Thu, 5 Feb 2026 08:21:29 +0000 (+0800) Subject: dt-bindings: phy: eswin: Document the EIC7700 SoC SATA PHY X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=820265f7b666d588bcb7df06f3332265c59e8cea;p=thirdparty%2Fkernel%2Flinux.git dt-bindings: phy: eswin: Document the EIC7700 SoC SATA PHY Document the SATA PHY on the EIC7700 SoC platform, describing its usage. Signed-off-by: Yulin Lu Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20260205082129.1482-1-luyulin@eswincomputing.com Signed-off-by: Vinod Koul --- diff --git a/Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml b/Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml new file mode 100644 index 0000000000000..fc7dbac77acf7 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/eswin,eic7700-sata-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Eswin EIC7700 SoC SATA PHY + +maintainers: + - Yulin Lu + - Huan He + +properties: + compatible: + const: eswin,eic7700-sata-phy + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: phy + + resets: + maxItems: 2 + + reset-names: + items: + - const: port + - const: phy + + eswin,tx-amplitude-tuning: + description: This adjusts the transmitter amplitude signal, and its value + is derived from eye diagram tuning. The three values correspond to Gen1, + Gen2, and Gen3 parameters respectively. + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: Gen1 parameter. + minimum: 0 + maximum: 0x7f + - description: Gen2 parameter. + minimum: 0 + maximum: 0x7f + - description: Gen3 parameter. + minimum: 0 + maximum: 0x7f + default: [0, 0, 0] + + eswin,tx-preemph-tuning: + description: This adjusts the transmitter de-emphasis signal, and its value + is derived from eye diagram tuning. The three values correspond to Gen1, + Gen2, and Gen3 parameters respectively. + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: Gen1 parameter. + minimum: 0 + maximum: 0x3f + - description: Gen2 parameter. + minimum: 0 + maximum: 0x3f + - description: Gen3 parameter. + minimum: 0 + maximum: 0x3f + default: [0, 0, 0] + + "#phy-cells": + const: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - "#phy-cells" + +additionalProperties: false + +examples: + - | + sata-phy@50440300 { + compatible = "eswin,eic7700-sata-phy"; + reg = <0x50440300 0x40>; + clocks = <&hspcrg 17>; + clock-names = "phy"; + resets = <&hspcrg 0>, <&hspcrg 1>; + reset-names = "port", "phy"; + #phy-cells = <0>; + };