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Mon, 24 Jan 2022 23:29:05 +0900 (KST) Received: from Jaguar.sa.corp.samsungelectronics.net (unknown [107.108.73.139]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20220124142903epsmtip1d409b638eddf9d58a9a8a6627c8a8b39~NOzY345Bd1678916789epsmtip1z; Mon, 24 Jan 2022 14:29:02 +0000 (GMT) From: Alim Akhtar To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: Cc: soc@kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, olof@lixom.net, arnd@arndb.de, linus.walleij@linaro.org, catalin.marinas@arm.com, robh+dt@kernel.org, krzysztof.kozlowski@canonical.com, s.nawrocki@samsung.com, linux-samsung-soc@vger.kernel.org, pankaj.dubey@samsung.com, sboyd@kernel.org, Alim Akhtar , linux-fsd@tesla.com Subject: [PATCH v5 03/16] dt-bindings: clock: Document FSD CMU bindings Date: Mon, 24 Jan 2022 19:46:31 +0530 Message-Id: <20220124141644.71052-4-alim.akhtar@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220124141644.71052-1-alim.akhtar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprNJsWRmVeSWpSXmKPExsWy7bCmuu6m7e8SDRrOcFo8mLeNzeLvpGPs Fu+X9TBazD9yjtVi49sfTBZT/ixnstj0+Bqrxceee6wWD1+FW1zeNYfNYsb5fUwWp65/ZrNY tPULu0Xr3iPsFofftLNa/Lu2kcXi8fU/bA6CHmvmrWH0+P1rEqPHrIZeNo9NqzrZPO5c28Pm sXlJvceVE02sHn1bVjF6/Guay+7xeZNcAFdUtk1GamJKapFCal5yfkpmXrqtkndwvHO8qZmB oa6hpYW5kkJeYm6qrZKLT4CuW2YO0D9KCmWJOaVAoYDE4mIlfTubovzSklSFjPziElul1IKU nAKTAr3ixNzi0rx0vbzUEitDAwMjU6DChOyMaaunsRX0GlU8uNTD1sD4RLGLkYNDQsBE4swV pi5GTg4hgd2MEstnANlcQPYnRokt99qYIZxvjBK9r6+xglSBNJze9JgdIrGXUeLv9ZusEE4L k8SC58fYQKrYBLQl7k7fAjZXRMBN4kZjB9hcZoH/TBIbe5aBFQkLuEtc2PKBGcRmEVCVODN5 KyOIzStgI9GzfQczxDp5idUbDoDZnAK2EvMWfgMbJCGwhUNi6ab5jBBFLhLnpt5igrCFJV4d 38IOYUtJvOxvY4d4NFuiZ5cxRLhGYum8YywQtr3EgStzWEBKmAU0Jdbv0gcJMwvwSfT+fsIE 0ckr0dEmBFGtKtH87ipUp7TExO5uaKB4SKyd+YMFEg4TgEH39xbjBEbZWQhTFzAyrmKUTC0o zk1PLTYtMM5LLYfHU3J+7iZGcCrV8t7B+OjBB71DjEwcjIcYJTiYlUR4q1LeJQrxpiRWVqUW 5ccXleakFh9iNAUG2URmKdHkfGAyzyuJNzSxNDAxMzMzsTQ2M1QS5z2VviFRSCA9sSQ1OzW1 ILUIpo+Jg1OqgemhyTGuJ59iTTNzY3gyA982hscUnRfSEA47YBux9viusC1Wd1v7zDPKxZ58 l0udd6MzW5Pzx4QbK7abpBpp5W6TXBx9nkFlqc+N/bI3Diy3jblyZDPXLD39x1GbbjF80rCR 4DivFl64bU5P/mXzBZpfGPg/mahlqK54pLF1TbjXw9i5uZxXuWyfsx5+utj3s6DKoacrTYs4 dizcPkk63zPzjNOeV5WrZJK9OAMYfxjwnF2+W1FWUd1o45/e885f1beKpwfUK61jOlfeYX+m 4IHU+pz1CxpmLWFbeGOBzwJtHlutpoU7GYtkuY/HvmKRWd1xYG3oqa8i671mmeVIvxB7H/Tw AJtaLPPO7AkfHiuxFGckGmoxFxUnAgDpgN2ELgQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrALMWRmVeSWpSXmKPExsWy7bCSnO7G7e8SDR71yls8mLeNzeLvpGPs Fu+X9TBazD9yjtVi49sfTBZT/ixnstj0+Bqrxceee6wWD1+FW1zeNYfNYsb5fUwWp65/ZrNY tPULu0Xr3iPsFofftLNa/Lu2kcXi8fU/bA6CHmvmrWH0+P1rEqPHrIZeNo9NqzrZPO5c28Pm sXlJvceVE02sHn1bVjF6/Guay+7xeZNcAFcUl01Kak5mWWqRvl0CV8a01dPYCnqNKh5c6mFr YHyi2MXIySEhYCJxetNj9i5GLg4hgd2MEgv+T2eESEhLXN84gR3CFpZY+e85VFETk8TkCR/B itgEtCXuTt/CBGKLCHhItP27xwxSxCwwkVli496zLCAJYQF3iQtbPjCD2CwCqhJnJm8Fa+YV sJHo2b6DGWKDvMTqDQfAbE4BW4l5C78BDeUA2mYjce63ygRGvgWMDKsYJVMLinPTc4sNCwzz Usv1ihNzi0vz0vWS83M3MYIjQUtzB+P2VR/0DjEycTAeYpTgYFYS4a1KeZcoxJuSWFmVWpQf X1Sak1p8iFGag0VJnPdC18l4IYH0xJLU7NTUgtQimCwTB6dUAxPfrty4J5Prk36U/J/6MXSG 4c66vro+Pr3Lc7892zP/jMUK3caIv77zziywFDHlt4h/WbjrNFepBf/CphrO/TXNssk+ooHL uYTunOJunWnQuHkJK2vZdgkXt23ab76UCPrWHUs2DWrk5vu582D+yu+sTf+PMVdIPVO+ssRN vDhS9Ui0xpXvPy8orfLOnKT3JyC9ZFO/8NNk10nBCnWbX90M3Prgp9sitlv7JF6/u25oKbe5 /x737d5Ind/7VSTEOtxiqo8dtrJK3Le89U4G4ym5rG6m8ItJ+T1Lr+3WquSLWuHVO+dUCuOJ gqduxYvieNp4ziiU+p6Iuldn9sSk4XDzsuM8HltXLw08zZkcrsRSnJFoqMVcVJwIAEYC3XDz AgAA X-CMS-MailID: 20220124142905epcas5p33a863799819fb904932d2e88c682940a X-Msg-Generator: CA CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220124142905epcas5p33a863799819fb904932d2e88c682940a References: <20220124141644.71052-1-alim.akhtar@samsung.com> Add dt-schema documentation for Tesla FSD SoC clock controller. Cc: linux-fsd@tesla.com Acked-by: Stephen Boyd Reviewed-by: Krzysztof Kozlowski Signed-off-by: Alim Akhtar Acked-by: Sylwester Nawrocki --- .../bindings/clock/tesla,fsd-clock.yaml | 198 ++++++++++++++++++ 1 file changed, 198 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml b/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml new file mode 100644 index 000000000000..dc808e2f8327 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml @@ -0,0 +1,198 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/tesla,fsd-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Tesla FSD (Full Self-Driving) SoC clock controller + +maintainers: + - Alim Akhtar + - linux-fsd@tesla.com + +description: | + FSD clock controller consist of several clock management unit + (CMU), which generates clocks for various inteernal SoC blocks. + The root clock comes from external OSC clock (24 MHz). + + All available clocks are defined as preprocessor macros in + 'dt-bindings/clock/fsd-clk.h' header. + +properties: + compatible: + enum: + - tesla,fsd-clock-cmu + - tesla,fsd-clock-imem + - tesla,fsd-clock-peric + - tesla,fsd-clock-fsys0 + - tesla,fsd-clock-fsys1 + - tesla,fsd-clock-mfc + - tesla,fsd-clock-cam_csi + + clocks: + minItems: 1 + maxItems: 6 + + clock-names: + minItems: 1 + maxItems: 6 + + "#clock-cells": + const: 1 + + reg: + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-cmu + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + clock-names: + items: + - const: fin_pll + + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-imem + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + - description: IMEM TCU clock (from CMU_CMU) + - description: IMEM bus clock (from CMU_CMU) + - description: IMEM DMA clock (from CMU_CMU) + clock-names: + items: + - const: fin_pll + - const: dout_cmu_imem_tcuclk + - const: dout_cmu_imem_aclk + - const: dout_cmu_imem_dmaclk + + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-peric + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + - description: Shared0 PLL div4 clock (from CMU_CMU) + - description: PERIC shared1 div36 clock (from CMU_CMU) + - description: PERIC shared0 div3 TBU clock (from CMU_CMU) + - description: PERIC shared0 div20 clock (from CMU_CMU) + - description: PERIC shared1 div4 DMAclock (from CMU_CMU) + clock-names: + items: + - const: fin_pll + - const: dout_cmu_pll_shared0_div4 + - const: dout_cmu_peric_shared1div36 + - const: dout_cmu_peric_shared0div3_tbuclk + - const: dout_cmu_peric_shared0div20 + - const: dout_cmu_peric_shared1div4_dmaclk + + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-fsys0 + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + - description: Shared0 PLL div6 clock (from CMU_CMU) + - description: FSYS0 shared1 div4 clock (from CMU_CMU) + - description: FSYS0 shared0 div4 clock (from CMU_CMU) + clock-names: + items: + - const: fin_pll + - const: dout_cmu_pll_shared0_div6 + - const: dout_cmu_fsys0_shared1div4 + - const: dout_cmu_fsys0_shared0div4 + + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-fsys1 + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + - description: FSYS1 shared0 div8 clock (from CMU_CMU) + - description: FSYS1 shared0 div4 clock (from CMU_CMU) + clock-names: + items: + - const: fin_pll + - const: dout_cmu_fsys1_shared0div8 + - const: dout_cmu_fsys1_shared0div4 + + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-mfc + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + clock-names: + items: + - const: fin_pll + + - if: + properties: + compatible: + contains: + const: tesla,fsd-clock-cam_csi + then: + properties: + clocks: + items: + - description: External reference clock (24 MHz) + clock-names: + items: + - const: fin_pll + +required: + - compatible + - "#clock-cells" + - clocks + - clock-names + - reg + +additionalProperties: false + +examples: + # Clock controller node for CMU_FSYS1 + - | + #include + + clock_fsys1: clock-controller@16810000 { + compatible = "tesla,fsd-clock-fsys1"; + reg = <0x16810000 0x3000>; + #clock-cells = <1>; + + clocks = <&fin_pll>, + <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV8>, + <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV4>; + clock-names = "fin_pll", + "dout_cmu_fsys1_shared0div8", + "dout_cmu_fsys1_shared0div4"; + }; + +...