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[93.34.92.88]) by smtp.googlemail.com with ESMTPSA id r126-20020a1c2b84000000b003d35c845cbbsm19927757wmr.21.2023.01.10.10.33.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Jan 2023 10:33:09 -0800 (PST) From: Christian Marangi To: Rob Herring , Krzysztof Kozlowski , Andy Gross , Bjorn Andersson , Konrad Dybcio , Michael Turquette , Stephen Boyd , Christian Marangi , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v6 3/6] dt-bindings: arm: msm: Rework kpss-gcc driver Documentation to yaml Date: Tue, 10 Jan 2023 19:32:56 +0100 Message-Id: <20230110183259.19142-4-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230110183259.19142-1-ansuelsmth@gmail.com> References: <20230110183259.19142-1-ansuelsmth@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754661908840842214?= X-GMAIL-MSGID: =?utf-8?q?1754661908840842214?= Rework kpss-gcc driver Documentation to yaml Documentation and move it to clock as it's a clock-controller. The current kpss-gcc Documentation have major problems and can't be converted directly. Introduce various changes to the original Documentation. Add #clock-cells additional binding as this clock outputs a static clk named acpu_l2_aux with supported compatible. Only some compatible require and outputs a clock, for the others, set only the reg as a required binding to correctly export the kpss-gcc registers. As the reg is shared also add the required syscon compatible. Signed-off-by: Christian Marangi Reviewed-by: Rob Herring --- .../bindings/arm/msm/qcom,kpss-gcc.txt | 44 ---------- .../bindings/clock/qcom,kpss-gcc.yaml | 88 +++++++++++++++++++ 2 files changed, 88 insertions(+), 44 deletions(-) delete mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt create mode 100644 Documentation/devicetree/bindings/clock/qcom,kpss-gcc.yaml diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt b/Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt deleted file mode 100644 index e628758950e1..000000000000 --- a/Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt +++ /dev/null @@ -1,44 +0,0 @@ -Krait Processor Sub-system (KPSS) Global Clock Controller (GCC) - -PROPERTIES - -- compatible: - Usage: required - Value type: - Definition: should be one of the following. The generic compatible - "qcom,kpss-gcc" should also be included. - "qcom,kpss-gcc-ipq8064", "qcom,kpss-gcc" - "qcom,kpss-gcc-apq8064", "qcom,kpss-gcc" - "qcom,kpss-gcc-msm8974", "qcom,kpss-gcc" - "qcom,kpss-gcc-msm8960", "qcom,kpss-gcc" - -- reg: - Usage: required - Value type: - Definition: base address and size of the register region - -- clocks: - Usage: required - Value type: - Definition: reference to the pll parents. - -- clock-names: - Usage: required - Value type: - Definition: must be "pll8_vote", "pxo". - -- clock-output-names: - Usage: required - Value type: - Definition: Name of the output clock. Typically acpu_l2_aux indicating - an L2 cache auxiliary clock. - -Example: - - l2cc: clock-controller@2011000 { - compatible = "qcom,kpss-gcc-ipq8064", "qcom,kpss-gcc"; - reg = <0x2011000 0x1000>; - clocks = <&gcc PLL8_VOTE>, <&gcc PXO_SRC>; - clock-names = "pll8_vote", "pxo"; - clock-output-names = "acpu_l2_aux"; - }; diff --git a/Documentation/devicetree/bindings/clock/qcom,kpss-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,kpss-gcc.yaml new file mode 100644 index 000000000000..88b7672123a0 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/qcom,kpss-gcc.yaml @@ -0,0 +1,88 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/qcom,kpss-gcc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Krait Processor Sub-system (KPSS) Global Clock Controller (GCC) + +maintainers: + - Christian Marangi + +description: + Krait Processor Sub-system (KPSS) Global Clock Controller (GCC). Used + to control L2 mux (in the current implementation) and provide access + to the kpss-gcc registers. + +properties: + compatible: + items: + - enum: + - qcom,kpss-gcc-ipq8064 + - qcom,kpss-gcc-apq8064 + - qcom,kpss-gcc-msm8974 + - qcom,kpss-gcc-msm8960 + - qcom,kpss-gcc-msm8660 + - qcom,kpss-gcc-mdm9615 + - const: qcom,kpss-gcc + - const: syscon + + reg: + maxItems: 1 + + clocks: + minItems: 2 + maxItems: 2 + + clock-names: + items: + - const: pll8_vote + - const: pxo + + '#clock-cells': + const: 0 + +required: + - compatible + - reg + +if: + properties: + compatible: + contains: + enum: + - qcom,kpss-gcc-ipq8064 + - qcom,kpss-gcc-apq8064 + - qcom,kpss-gcc-msm8974 + - qcom,kpss-gcc-msm8960 +then: + required: + - clocks + - clock-names + - '#clock-cells' +else: + properties: + clock: false + clock-names: false + '#clock-cells': false + +additionalProperties: false + +examples: + - | + #include + + clock-controller@2011000 { + compatible = "qcom,kpss-gcc-ipq8064", "qcom,kpss-gcc", "syscon"; + reg = <0x2011000 0x1000>; + clocks = <&gcc PLL8_VOTE>, <&pxo_board>; + clock-names = "pll8_vote", "pxo"; + #clock-cells = <0>; + }; + + - | + clock-controller@2011000 { + compatible = "qcom,kpss-gcc-mdm9615", "qcom,kpss-gcc", "syscon"; + reg = <0x02011000 0x1000>; + }; +...