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Thu, 13 Aug 2026 08:52:50 -0700 (PDT) X-Received: by 2002:a05:6a00:1898:b0:84f:b01d:3693 with SMTP id d2e1a72fcca58-84fc74f90fcmr7388208b3a.15.1786636369581; Thu, 13 Aug 2026 08:52:49 -0700 (PDT) Received: from hu-vdadhani-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84fc45627cdsm1156401b3a.5.2026.08.13.08.52.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Aug 2026 08:52:48 -0700 (PDT) From: Viken Dadhaniya Date: Thu, 13 Aug 2026 21:22:32 +0530 Subject: [PATCH v3 1/2] dt-bindings: i2c: Add Qualcomm I2C target controller Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260813-i2c-qcom-slave-v3-1-1d3742e2ad47@oss.qualcomm.com> References: <20260813-i2c-qcom-slave-v3-0-1d3742e2ad47@oss.qualcomm.com> In-Reply-To: <20260813-i2c-qcom-slave-v3-0-1d3742e2ad47@oss.qualcomm.com> To: Mukesh Kumar Savaliya , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Viken Dadhaniya X-Mailer: b4 0.16-dev X-Developer-Signature: v=1; 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It is a distinct IP from the Qualcomm I2C master controllers (GENI, QUP) with a different register interface, so it requires its own binding. Document the MMIO region, interrupt, XO and AHB clocks, interconnect path, and optional pinctrl states for the controller. Signed-off-by: Viken Dadhaniya --- .../bindings/i2c/qcom,qdu1000-i2c-target.yaml | 75 ++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/qcom,qdu1000-i2c-target.yaml b/Documentation/devicetree/bindings/i2c/qcom,qdu1000-i2c-target.yaml new file mode 100644 index 000000000000..9a6b08f0ab0e --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/qcom,qdu1000-i2c-target.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/qcom,qdu1000-i2c-target.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm I2C Target Controller + +maintainers: + - Mukesh Kumar Savaliya + - Viken Dadhaniya + +description: + Dedicated hardware IP found on Qualcomm SoCs that operates exclusively + as an I2C target (slave) device on the bus. Supports FIFO (PIO) mode + for data transfer. + +properties: + compatible: + enum: + - qcom,qdu1000-i2c-target + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: XO reference clock + - description: AHB bus clock + + clock-names: + items: + - const: xo + - const: ahb + + interconnects: + maxItems: 1 + + pinctrl-0: true + pinctrl-1: true + + pinctrl-names: + minItems: 1 + items: + - const: default + - const: sleep + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - interconnects + +additionalProperties: false + +examples: + - | + #include + #include + #include + + i2c@88ca000 { + compatible = "qcom,qdu1000-i2c-target"; + reg = <0x88ca000 0x64>; + clocks = <&gcc GCC_SM_BUS_XO_CLK>, <&gcc GCC_SM_BUS_AHB_CLK>; + clock-names = "xo", "ahb"; + interrupts = ; + interconnects = <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_SMBUS_CFG 0>; + }; +... -- 2.34.1