From nobody Wed Nov 27 13:41:23 2024 Received: from mail.andi.de1.cc (mail.andi.de1.cc [178.238.236.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C932E191473; Wed, 9 Oct 2024 20:56:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.238.236.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728507399; cv=none; b=EPWzo0o/ovMKcRBbd+YW3Lky567TAmpZOKEM30VhEPXuE7W4Q8KFDCeQI1+YxxHkSps4G5P/3PBT6ZD3heKr7eRNflyDn1BV4IYX3ERbBgvOKuo7gc9lVu0K/IKsY+HPFpvNrvjTvyDbY7iuRbwxEX5QE0pkBQLYFo750+tEcZw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728507399; c=relaxed/simple; bh=25CW83HPiUqoSDtzRriqpXsB3Qx4C1kGZPQzbxG9Lf4=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=dl3F3x0IqT2YI1WYtNm1CXXDbPfoEj39oINeu9KmJROw77InxBzBkPyw1cGoTtQ6EplB8dNycKYjvnOCsfZje4p4+el8XNQ9jbGFKXmbSmTknApp70CnXdcem2rRjCXSP1hEKdcQkBqUmMrn3z+OGkr7iqkpr0Hqh3cCqdESLKg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info; spf=pass smtp.mailfrom=kemnade.info; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b=eZGC6TAs; arc=none smtp.client-ip=178.238.236.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kemnade.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b="eZGC6TAs" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kemnade.info; s=20220719; h=References:In-Reply-To:From:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID; bh=XAiJ0t0NwL2bpJ7KatMhp+QkNMyhi+LRb3G5JPOXpbo=; b=eZGC6TAsUNrm/lsKHIQnTt+0hd Pd4U6pu+WcenDD+fxSmJ+N5E7q03U9AtN7DYUArv/7/IKEYdjlhPjPW97ig9mtdcuTW5HMFLiYDaR G6mPy9ACKzKJeZKIaCuxc8rgD50f/14YSmc16FJsCs6W725rt2N0hHFUjOdai8aMmVRMyJin3ZIp7 gsoOMQmWmGh5lIxEmBRTt7dw7Xjy9bjmeIvgk57T+wE1/M9TuRNHA7fn9+U/JYCGSsTRHV0lpVEQH OKHzj0g5tjaRvvSk9JtxIMyziaBDcWCMnmO09Yw/fvx5lybD0NyYdcMMZcfjF/J4M9HuxSukcmr+O ow3Rc4hg==; From: Andreas Kemnade To: Aaro Koskinen , Tony Lindgren , Roger Quadros , linux-omap@vger.kernel.org, Kevin Hilman , devicetree@vger.kernel.org, Andreas Kemnade , linux-clk@vger.kernel.org, Tero Kristo , Conor Dooley , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , linux-kernel@vger.kernel.org Subject: [PATCH RFC v2 1/2] dt-bindings: clock: ti: Convert interface.txt to json-schema Date: Wed, 9 Oct 2024 22:56:18 +0200 Message-Id: <20241009205619.16250-2-andreas@kemnade.info> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241009205619.16250-1-andreas@kemnade.info> References: <20241009205619.16250-1-andreas@kemnade.info> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Convert the OMAP interface clock device tree binding to json-schema. Specify the creator of the original binding as a maintainer. Signed-off-by: Andreas Kemnade Reviewed-by: Rob Herring (Arm) --- .../bindings/clock/ti/interface.txt | 55 --------------- .../bindings/clock/ti/ti,interface-clock.yaml | 70 +++++++++++++++++++ 2 files changed, 70 insertions(+), 55 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/ti/interface.txt create mode 100644 Documentation/devicetree/bindings/clock/ti/ti,interface= -clock.yaml diff --git a/Documentation/devicetree/bindings/clock/ti/interface.txt b/Doc= umentation/devicetree/bindings/clock/ti/interface.txt deleted file mode 100644 index 85fb1f2d2d28..000000000000 --- a/Documentation/devicetree/bindings/clock/ti/interface.txt +++ /dev/null @@ -1,55 +0,0 @@ -Binding for Texas Instruments interface clock. - -This binding uses the common clock binding[1]. This clock is -quite much similar to the basic gate-clock [2], however, -it supports a number of additional features, including -companion clock finding (match corresponding functional gate -clock) and hardware autoidle enable / disable. - -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt -[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml - -Required properties: -- compatible : shall be one of: - "ti,omap3-interface-clock" - basic OMAP3 interface clock - "ti,omap3-no-wait-interface-clock" - interface clock which has no hardwa= re - capability for waiting clock to be ready - "ti,omap3-hsotgusb-interface-clock" - interface clock with USB specific = HW - handling - "ti,omap3-dss-interface-clock" - interface clock with DSS specific HW ha= ndling - "ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW ha= ndling - "ti,am35xx-interface-clock" - interface clock with AM35xx specific HW ha= ndling - "ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW - handling -- #clock-cells : from common clock binding; shall be set to 0 -- clocks : link to phandle of parent clock -- reg : base address for the control register - -Optional properties: -- clock-output-names : from common clock binding. -- ti,bit-shift : bit shift for the bit enabling/disabling the clock (defau= lt 0) - -Examples: - aes1_ick: aes1_ick@48004a14 { - #clock-cells =3D <0>; - compatible =3D "ti,omap3-interface-clock"; - clocks =3D <&security_l4_ick2>; - reg =3D <0x48004a14 0x4>; - ti,bit-shift =3D <3>; - }; - - cam_ick: cam_ick@48004f10 { - #clock-cells =3D <0>; - compatible =3D "ti,omap3-no-wait-interface-clock"; - clocks =3D <&l4_ick>; - reg =3D <0x48004f10 0x4>; - ti,bit-shift =3D <0>; - }; - - ssi_ick_3430es2: ssi_ick_3430es2@48004a10 { - #clock-cells =3D <0>; - compatible =3D "ti,omap3-ssi-interface-clock"; - clocks =3D <&ssi_l4_ick>; - reg =3D <0x48004a10 0x4>; - ti,bit-shift =3D <0>; - }; diff --git a/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.= yaml b/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml new file mode 100644 index 000000000000..0e9542ed381f --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/ti/ti,interface-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments interface clock. + +maintainers: + - Tero Kristo + +description: | + This clock is quite much similar to the basic gate-clock[1], however, + it supports a number of additional features, including + companion clock finding (match corresponding functional gate + clock) and hardware autoidle enable / disable. + + [1] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml + +properties: + compatible: + enum: + - ti,omap3-interface-clock # basic OMAP3 interface clock + - ti,omap3-no-wait-interface-clock # interface clock which has no = hardware + # capability for waiting clock = to be ready + - ti,omap3-hsotgusb-interface-clock # interface clock with USB spec= ific HW handling + - ti,omap3-dss-interface-clock # interface clock with DSS spec= ific HW handling + - ti,omap3-ssi-interface-clock # interface clock with SSI spec= ific HW handling + - ti,am35xx-interface-clock # interface clock with AM35xx s= pecific HW handling + - ti,omap2430-interface-clock # interface clock with OMAP2430= specific HW handling + + "#clock-cells": + const: 0 + + clocks: + maxItems: 1 + + clock-output-names: + maxItems: 1 + + reg: + maxItems: 1 + + ti,bit-shift: + description: + bit shift for the bit enabling/disabling the clock + $ref: /schemas/types.yaml#/definitions/uint32 + default: 0 + +required: + - compatible + - clocks + - '#clock-cells' + - reg + +additionalProperties: false + +examples: + - | + bus { + #address-cells =3D <1>; + #size-cells =3D <0>; + + aes1_ick: clock-controller@3 { + #clock-cells =3D <0>; + compatible =3D "ti,omap3-interface-clock"; + clocks =3D <&security_l4_ick2>; + reg =3D <3>; + }; + }; --=20 2.39.5 From nobody Wed Nov 27 13:41:23 2024 Received: from mail.andi.de1.cc (mail.andi.de1.cc [178.238.236.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B737740849; Wed, 9 Oct 2024 20:56:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.238.236.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728507399; cv=none; b=A8EFvk2VjDESWFvlbka1EafuxVHVeb8y9ukwryN+5Ur3MNP4RGhrt1YS+5u+ElkVJDOMKlzGWO4N2IMcLKvAaiqBDX6vbWjNXA548E98kl2TzbWOi9lD786RHn9qTSst1q9pcUE5Ne39g+IjKbbnp4ldA9RH2lZ/d0tAPntaw44= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728507399; c=relaxed/simple; bh=sB7L/+DP7+wsazntw0eYyJbiuzRfbOCPdlDYZcDQzsE=; 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bh=KkVDYwEdUXr7HgZjftAfw5lK2G4Novf4Z64rkQh2tdA=; b=xmKsTM0sA8LbTuyNRCURdLBKbx F2XzQQg1XQKa4m3+TRUYMKi+az89ybwuJZpwHDKT7gNTYH2wN3wpxPzMdgP/05hgO2GUtalJblUAW MZ8Z2uvp/50na85I4+Z+AySNyyeVOtNxmxZjdFmnZQ1xtS08xuN7LufmfZF3j/VrBrN1JrzSWGOPV fwQjr9kECsMoROtDQ9rbSUOlz4MFHWqMcvUsoFLiIl/7Ky7UGLtcPWV1cxPILl0dOiRWXPLn90ywl Vw5bB1IeU9yLJ0ACeBPAqu2Ipy+q8LgTaA2Q1P2WLf7s+FssnRYEuhPn2ui1ITuDz1s9FVfzlnVnW ZI8bwg6w==; From: Andreas Kemnade To: Aaro Koskinen , Tony Lindgren , Roger Quadros , linux-omap@vger.kernel.org, Kevin Hilman , devicetree@vger.kernel.org, Andreas Kemnade , linux-clk@vger.kernel.org, Tero Kristo , Conor Dooley , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , linux-kernel@vger.kernel.org Subject: [PATCH RFC v2 2/2] dt-bindings: clock: ti: Convert divider.txt to json-schema Date: Wed, 9 Oct 2024 22:56:19 +0200 Message-Id: <20241009205619.16250-3-andreas@kemnade.info> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241009205619.16250-1-andreas@kemnade.info> References: <20241009205619.16250-1-andreas@kemnade.info> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Convert the OMAP divider clock device tree binding to json-schema. Specify the creator of the original binding as a maintainer. Signed-off-by: Andreas Kemnade --- .../devicetree/bindings/clock/ti/divider.txt | 115 ------------ .../bindings/clock/ti/ti,divider-clock.yaml | 175 ++++++++++++++++++ 2 files changed, 175 insertions(+), 115 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/ti/divider.txt create mode 100644 Documentation/devicetree/bindings/clock/ti/ti,divider-c= lock.yaml diff --git a/Documentation/devicetree/bindings/clock/ti/divider.txt b/Docum= entation/devicetree/bindings/clock/ti/divider.txt deleted file mode 100644 index 4d7c76f0b356..000000000000 --- a/Documentation/devicetree/bindings/clock/ti/divider.txt +++ /dev/null @@ -1,115 +0,0 @@ -Binding for TI divider clock - -This binding uses the common clock binding[1]. It assumes a -register-mapped adjustable clock rate divider that does not gate and has -only one input clock or parent. By default the value programmed into -the register is one less than the actual divisor value. E.g: - -register value actual divisor value -0 1 -1 2 -2 3 - -This assumption may be modified by the following optional properties: - -ti,index-starts-at-one - valid divisor values start at 1, not the default -of 0. E.g: -register value actual divisor value -1 1 -2 2 -3 3 - -ti,index-power-of-two - valid divisor values are powers of two. E.g: -register value actual divisor value -0 1 -1 2 -2 4 - -Additionally an array of valid dividers may be supplied like so: - - ti,dividers =3D <4>, <8>, <0>, <16>; - -Which will map the resulting values to a divisor table by their index: -register value actual divisor value -0 4 -1 8 -2 -3 16 - -Any zero value in this array means the corresponding bit-value is invalid -and must not be used. - -The binding must also provide the register to control the divider and -unless the divider array is provided, min and max dividers. Optionally -the number of bits to shift that mask, if necessary. If the shift value -is missing it is the same as supplying a zero shift. - -This binding can also optionally provide support to the hardware autoidle -feature, see [2]. - -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt -[2] Documentation/devicetree/bindings/clock/ti/autoidle.txt - -Required properties: -- compatible : shall be "ti,divider-clock" or "ti,composite-divider-clock". -- #clock-cells : from common clock binding; shall be set to 0. -- clocks : link to phandle of parent clock -- reg : offset for register controlling adjustable divider - -Optional properties: -- clock-output-names : from common clock binding. -- ti,dividers : array of integers defining divisors -- ti,bit-shift : number of bits to shift the divider value, defaults to 0 -- ti,min-div : min divisor for dividing the input clock rate, only - needed if the first divisor is offset from the default value (1) -- ti,max-div : max divisor for dividing the input clock rate, only needed - if ti,dividers is not defined. -- ti,index-starts-at-one : valid divisor programming starts at 1, not zero, - only valid if ti,dividers is not defined. -- ti,index-power-of-two : valid divisor programming must be a power of two, - only valid if ti,dividers is not defined. -- ti,autoidle-shift : bit shift of the autoidle enable bit for the clock, - see [2] -- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0, - see [2] -- ti,set-rate-parent : clk_set_rate is propagated to parent -- ti,latch-bit : latch the divider value to HW, only needed if the register - access requires this. As an example dra76x DPLL_GMAC H14 divider impleme= nts - such behavior. - -Examples: -dpll_usb_m2_ck: dpll_usb_m2_ck@4a008190 { - #clock-cells =3D <0>; - compatible =3D "ti,divider-clock"; - clocks =3D <&dpll_usb_ck>; - ti,max-div =3D <127>; - reg =3D <0x190>; - ti,index-starts-at-one; -}; - -aess_fclk: aess_fclk@4a004528 { - #clock-cells =3D <0>; - compatible =3D "ti,divider-clock"; - clocks =3D <&abe_clk>; - ti,bit-shift =3D <24>; - reg =3D <0x528>; - ti,max-div =3D <2>; -}; - -dpll_core_m3x2_div_ck: dpll_core_m3x2_div_ck { - #clock-cells =3D <0>; - compatible =3D "ti,composite-divider-clock"; - clocks =3D <&dpll_core_x2_ck>; - ti,max-div =3D <31>; - reg =3D <0x0134>; - ti,index-starts-at-one; -}; - -ssi_ssr_div_fck_3430es2: ssi_ssr_div_fck_3430es2 { - #clock-cells =3D <0>; - compatible =3D "ti,composite-divider-clock"; - clocks =3D <&corex2_fck>; - ti,bit-shift =3D <8>; - reg =3D <0x0a40>; - ti,dividers =3D <0>, <1>, <2>, <3>, <4>, <0>, <6>, <0>, <8>; -}; diff --git a/Documentation/devicetree/bindings/clock/ti/ti,divider-clock.ya= ml b/Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml new file mode 100644 index 000000000000..31fe876fb40b --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml @@ -0,0 +1,175 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/ti/ti,divider-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments divider clock + +maintainers: + - Tero Kristo + +description: | + This clock It assumes a register-mapped adjustable clock rate divider + that does not gate and has only one input clock or parent. By default t= he + value programmed into the register is one less than the actual divisor v= alue. + E.g: + + register value actual divisor value + 0 1 + 1 2 + 2 3 + + This assumption may be modified by the following optional properties: + + ti,index-starts-at-one - valid divisor values start at 1, not the default + of 0. E.g: + register value actual divisor value + 1 1 + 2 2 + 3 3 + + ti,index-power-of-two - valid divisor values are powers of two. E.g: + register value actual divisor value + 0 1 + 1 2 + 2 4 + + Additionally an array of valid dividers may be supplied like so: + + ti,dividers =3D <4>, <8>, <0>, <16>; + + Which will map the resulting values to a divisor table by their index: + register value actual divisor value + 0 4 + 1 8 + 2 + 3 16 + + Any zero value in this array means the corresponding bit-value is invalid + and must not be used. + + The binding must also provide the register to control the divider and + unless the divider array is provided, min and max dividers. Optionally + the number of bits to shift that mask, if necessary. If the shift value + is missing it is the same as supplying a zero shift. + + This binding can also optionally provide support to the hardware autoidle + feature, see [1]. + + [1] Documentation/devicetree/bindings/clock/ti/autoidle.txt + +properties: + compatible: + enum: + - ti,divider-clock + - ti,composite-divider-clock + + "#clock-cells": + const: 0 + + clocks: + maxItems: 1 + + clock-output-names: + maxItems: 1 + + reg: + maxItems: 1 + + ti,dividers: true + + ti,bit-shift: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + number of bits to shift the divider value + + ti,min-div: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + min divisor for dividing the input clock rate, only + needed if the first divisor is offset from the default value (1) + + ti,max-div: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + max divisor for dividing the input clock rate, only needed + if ti,dividers is not defined. + + ti,index-starts-at-one: + type: boolean + description: + valid divisor programming starts at 1, not zero, + only valid if ti,dividers is not defined + + ti,index-power-of-two: + type: boolean + description: + valid divisor programming must be a power of two, + only valid if ti,dividers is not defined. + + ti,autoidle-shift: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + bit shift of the autoidle enable bit for the clock, + see [1]. + + ti,invert-autoidle-bit: + type: boolean + description: + autoidle is enabled by setting the bit to 0, + see [1] + + ti,set-rate-parent: + type: boolean + description: + clk_set_rate is propagated to parent | + + ti,latch-bit: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + latch the divider value to HW, only needed if the register + compatible access requires this. As an example dra76x DPLL_GMAC + H14 divider implements such behavior. + +required: + - compatible + - "#clock-cells" + - clocks + - reg + +additionalProperties: false + +examples: + - | + bus { + #address-cells =3D <1>; + #size-cells =3D <0>; + + dpll_usb_m2_ck: clock-controller@190 { + #clock-cells =3D <0>; + compatible =3D "ti,divider-clock"; + clocks =3D <&dpll_usb_ck>; + ti,max-div =3D <127>; + reg =3D <0x190>; + ti,index-starts-at-one; + }; + + aess_fclk: clock-controller@528 { + #clock-cells =3D <0>; + compatible =3D "ti,divider-clock"; + clocks =3D <&abe_clk>; + ti,bit-shift =3D <24>; + reg =3D <0x528>; + ti,max-div =3D <2>; + }; + + ssi_ssr_div_fck_3430es2: clock-controller@a40 { + #clock-cells =3D <0>; + compatible =3D "ti,composite-divider-clock"; + clocks =3D <&corex2_fck>; + ti,bit-shift =3D <8>; + reg =3D <0x0a40>; + ti,dividers =3D <0>, <1>, <2>, <3>, <4>, <0>, <6>, <0>, <8>; + }; + }; --=20 2.39.5