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[144.178.202.139]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ae3f6b600ddsm1116795766b.158.2025.07.09.07.55.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Jul 2025 07:55:24 -0700 (PDT) From: Luca Weiss Date: Wed, 09 Jul 2025 16:55:14 +0200 Subject: [PATCH v2 1/4] dt-bindings: phy: qcom,snps-eusb2-repeater: Document qcom,tune-res-fsdif Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250709-sm7635-eusb-repeater-v2-1-b6eff075c097@fairphone.com> References: <20250709-sm7635-eusb-repeater-v2-0-b6eff075c097@fairphone.com> In-Reply-To: <20250709-sm7635-eusb-repeater-v2-0-b6eff075c097@fairphone.com> To: Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Abel Vesa Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1752072923; l=1262; i=luca.weiss@fairphone.com; s=20250611; h=from:subject:message-id; bh=NXnGscA8zt8gzxiNiTYIUpV9OfGd5HRPGvlVvXT/iJo=; b=H+Maa8FQfQMc4eZK+lVTkgEgw5axIHwWJiezVuUHjjiMKqtPvImloJEAECKGkVNX2B4QbuKj/ VbyHsa6K3PHDkywR6SF4gjvn6DReQ+U5+SEDTmfS3zD9EEvXZb76HsM X-Developer-Key: i=luca.weiss@fairphone.com; a=ed25519; pk=O1aw+AAust5lEmgrNJ1Bs7PTY0fEsJm+mdkjExA69q8= Document the FS Differential TX Output Resistance Tuning value found on the eUSB2 repeater on Qualcomm PMICs. The tuning values have special meanings, being different offsets of the resistance to the default value in Ohms but the exact meaning is not relevant here, as the correct tuning is determined by hardware engineers to make sure the electrical properties are as expected. Signed-off-by: Luca Weiss Reviewed-by: Rob Herring (Arm) --- Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml | 6 ++= ++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater= .yaml b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml index 27f064a71c9fb8cb60e8333fb285f0510a4af94f..6bfd11657e2992735998063b3ca= 390e04a03930d 100644 --- a/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml +++ b/Documentation/devicetree/bindings/phy/qcom,snps-eusb2-repeater.yaml @@ -52,6 +52,12 @@ properties: minimum: 0 maximum: 7 =20 + qcom,tune-res-fsdif: + $ref: /schemas/types.yaml#/definitions/uint8 + description: FS Differential TX Output Resistance Tuning + minimum: 0 + maximum: 7 + required: - compatible - reg --=20 2.50.0