From patchwork Sun Dec 29 13:53:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: akemnade@kernel.org X-Patchwork-Id: 854214 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5660518A922; Sun, 29 Dec 2024 13:53:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735480439; cv=none; b=OlU82glUBFospvG1sSEbZSccN8xD1BEk0Mfj6aHQkLQIGqOE3Zzkw/fdMh1eCgKusmGacplJXTKGH8Lk7x4Rs3K1DU3oZLXnK1X1U6yVxZnwaXoFYTKHRYhE91n8w++B+lDg8Mv19z0RiAM6eC4fRMnytkt66omniawz/E+gi8E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735480439; c=relaxed/simple; bh=qPqP3V/5iqL/CvfRc4wTABvDdPB8RgGiYiU9JVupGpY=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CH7wgdTqXWOu/gE+v96OWEp8/43rFon3/9eI+ryy4sc0Q3q1CMLAI3Z8kTERQdPNiZFVsFqsZVOWLMcz+uxFzD69A1ZOwP4ISlZtXla23U4qKcFEZs0L7wW/6O+Cq1Icnkzssqcua9wQ6jG786kFnaSY5slB0g8aQGgK7r9Vr0k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jcGea+if; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jcGea+if" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5315CC4CEE0; Sun, 29 Dec 2024 13:53:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1735480438; bh=qPqP3V/5iqL/CvfRc4wTABvDdPB8RgGiYiU9JVupGpY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=jcGea+ifNSOWHPDbNlKFsbOV1AKEMgUCHX7hJ4suIxIy1EAnga4HmY1uykDSWQYjY nY1+K9jLljAGQyNiN7AjTVYhq9v8cq19EDwaQ7KK0NQmT37lcNSm9zbxIPa+Uzd+AZ mYWwWpMvg7P2RaDsJ38kCMIP2CWyTkZnYpn/VOXRulgBOu+l6RbmG+4+sPbwr5HX3p ax0DRApqjqro7BXnvxFeLBZxiSdwEJD3oBJB0oe+RmlKYf2VTqbheYRPdeyUlYW8PN eUXbq1qluebHj9qYthb6m6RSzmjOhkUnKCr1LEYDuKnV7o4ay4BNDVWSRvfN77xGOg w1ae7PogsBSXA== From: akemnade@kernel.org To: Tero Kristo , Andreas Kemnade , Tony Lindgren , devicetree@vger.kernel.org, Stephen Boyd , Conor Dooley , Rob Herring , linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Michael Turquette , linux-clk@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: clock: ti: Convert gate.txt to json-schema Date: Sun, 29 Dec 2024 14:53:50 +0100 Message-Id: <20241229135351.5014-2-akemnade@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241229135351.5014-1-akemnade@kernel.org> References: <20241229135351.5014-1-akemnade@kernel.org> Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Andreas Kemnade Convert the OMAP gate clock device tree binding to json-schema. Specify the creator of the original binding as a maintainer. Choose GPL-only license because original binding was also GPL. Clean up the examples during conversion to meet modern standards and remove examples with no additional value. Due to usage in code and existing devicetree binding, add the ti,set-rate-parent property. Signed-off-by: Andreas Kemnade --- .../devicetree/bindings/clock/ti/gate.txt | 105 --------------- .../bindings/clock/ti/ti,gate-clock.yaml | 123 ++++++++++++++++++ 2 files changed, 123 insertions(+), 105 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/ti/gate.txt create mode 100644 Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/ti/gate.txt b/Documentation/devicetree/bindings/clock/ti/gate.txt deleted file mode 100644 index a8e0335b006a..000000000000 --- a/Documentation/devicetree/bindings/clock/ti/gate.txt +++ /dev/null @@ -1,105 +0,0 @@ -Binding for Texas Instruments gate 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. If no register -is provided for this clock, the code assumes that a clockdomain -will be controlled instead and the corresponding hw-ops for -that is used. - -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt -[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml -[3] Documentation/devicetree/bindings/clock/ti/clockdomain.txt - -Required properties: -- compatible : shall be one of: - "ti,gate-clock" - basic gate clock - "ti,wait-gate-clock" - gate clock which waits until clock is active before - returning from clk_enable() - "ti,dss-gate-clock" - gate clock with DSS specific hardware handling - "ti,am35xx-gate-clock" - gate clock with AM35xx specific hardware handling - "ti,clkdm-gate-clock" - clockdomain gate clock, which derives its functional - clock directly from a clockdomain, see [3] how - to map clockdomains properly - "ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling, - required for a hardware errata - "ti,composite-gate-clock" - composite gate clock, to be part of composite - clock - "ti,composite-no-wait-gate-clock" - composite gate clock that does not wait - for clock to be active before returning - from clk_enable() -- #clock-cells : from common clock binding; shall be set to 0 -- clocks : link to phandle of parent clock -- reg : offset for register controlling adjustable gate, not needed for - ti,clkdm-gate-clock type - -Optional properties: -- clock-output-names : from common clock binding. -- ti,bit-shift : bit shift for programming the clock gate, invalid for - ti,clkdm-gate-clock type -- ti,set-bit-to-disable : inverts default gate programming. Setting the bit - gates the clock and clearing the bit ungates the clock. - -Examples: - mmchs2_fck: mmchs2_fck@48004a00 { - #clock-cells = <0>; - compatible = "ti,gate-clock"; - clocks = <&core_96m_fck>; - reg = <0x0a00>; - ti,bit-shift = <25>; - }; - - uart4_fck_am35xx: uart4_fck_am35xx { - #clock-cells = <0>; - compatible = "ti,wait-gate-clock"; - clocks = <&core_48m_fck>; - reg = <0x0a00>; - ti,bit-shift = <23>; - }; - - dss1_alwon_fck_3430es2: dss1_alwon_fck_3430es2@48004e00 { - #clock-cells = <0>; - compatible = "ti,dss-gate-clock"; - clocks = <&dpll4_m4x2_ck>; - reg = <0x0e00>; - ti,bit-shift = <0>; - }; - - emac_ick: emac_ick@4800259c { - #clock-cells = <0>; - compatible = "ti,am35xx-gate-clock"; - clocks = <&ipss_ick>; - reg = <0x059c>; - ti,bit-shift = <1>; - }; - - emu_src_ck: emu_src_ck { - #clock-cells = <0>; - compatible = "ti,clkdm-gate-clock"; - clocks = <&emu_src_mux_ck>; - }; - - dpll4_m2x2_ck: dpll4_m2x2_ck@48004d00 { - #clock-cells = <0>; - compatible = "ti,hsdiv-gate-clock"; - clocks = <&dpll4_m2x2_mul_ck>; - ti,bit-shift = <0x1b>; - reg = <0x0d00>; - ti,set-bit-to-disable; - }; - - vlynq_gate_fck: vlynq_gate_fck { - #clock-cells = <0>; - compatible = "ti,composite-gate-clock"; - clocks = <&core_ck>; - ti,bit-shift = <3>; - reg = <0x0200>; - }; - - sys_clkout2_src_gate: sys_clkout2_src_gate { - #clock-cells = <0>; - compatible = "ti,composite-no-wait-gate-clock"; - clocks = <&core_ck>; - ti,bit-shift = <15>; - reg = <0x0070>; - }; diff --git a/Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml new file mode 100644 index 000000000000..ef2f5d6bdb4d --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml @@ -0,0 +1,123 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/ti/ti,gate-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments gate 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. If no register + is provided for this clock, the code assumes that a clockdomain + will be controlled instead and the corresponding hw-ops for + that is used. + + [1] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml + [2] Documentation/devicetree/bindings/clock/ti/clockdomain.txt + +properties: + compatible: + enum: + - ti,gate-clock # basic gate clock + - ti,wait-gate-clock # gate clock which waits until clock is + # active before returning from clk_enable() + - ti,dss-gate-clock # gate clock with DSS specific hardware + # handling + - ti,am35xx-gate-clock # gate clock with AM35xx specific hardware + # handling + - ti,clkdm-gate-clock # clockdomain gate clock, which derives its + # functional clock directly from a + # clockdomain, see [2] how to map + # clockdomains properly + - ti,hsdiv-gate-clock # gate clock with OMAP36xx specific hardware + # handling, required for a hardware errata + - ti,composite-gate-clock # composite gate clock, to be part of + # composite clock + - ti,composite-no-wait-gate-clock # composite gate clock that does not + # wait for clock to be active before + # returning from clk_enable() + "#clock-cells": + const: 0 + + clocks: true + + clock-output-names: + maxItems: 1 + + reg: + maxItems: 1 + + ti,bit-shift: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Number of bits to shift the bit-mask + maximum: 31 + default: 0 + + ti,set-bit-to-disable: + type: boolean + description: + Inverts default gate programming. Setting the bit + gates the clock and clearing the bit ungates the clock. + + ti,set-rate-parent: + type: boolean + description: + clk_set_rate is propagated to parent clock, + +if: + properties: + compatible: + contains: + const: ti,clkdm-gate-clock +then: + properties: + reg: false + required: + - compatible + - "#clock-cells" + - clocks +else: + required: + - compatible + - "#clock-cells" + - clocks + - reg + +additionalProperties: false + +examples: + - | + bus { + #address-cells = <1>; + #size-cells = <0>; + + clock-controller@a00 { + #clock-cells = <0>; + compatible = "ti,gate-clock"; + clocks = <&core_96m_fck>; + reg = <0x0a00>; + ti,bit-shift = <25>; + }; + + clock-controller@d00 { + compatible = "ti,hsdiv-gate-clock"; + reg = <0x0d00>; + #clock-cells = <0>; + clocks = <&dpll4_m2x2_mul_ck>; + ti,bit-shift = <0x1b>; + ti,set-bit-to-disable; + }; + }; + + - | + clock-controller { + #clock-cells = <0>; + compatible = "ti,clkdm-gate-clock"; + clocks = <&emu_src_mux_ck>; + }; + From patchwork Sun Dec 29 13:53:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: akemnade@kernel.org X-Patchwork-Id: 854465 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3F78E192D77; Sun, 29 Dec 2024 13:54:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735480442; cv=none; b=P3E5eIT0mEgeeEFirzgA5MnG+fR9z4SAnE6S6qzSQuoRRtWNiVE9ofh57QCbrDNsCgh2bsZDWCm/WsWzmyLgZhDTFyMGZtWnA3I6XTC7HvKx+o7MYVov5C4SKlPTvUKvoIt6hKyAgnWcHRP/zk2f682MoZGT2btLq9xFkhGrE6w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735480442; c=relaxed/simple; bh=Mjk7H9T4yOglu2hD+Hop4F3BZQxBR6z2904vQhHkkUA=; h=From:To:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Lpf8Mfa28qfbR+8oZHsfWAdZdYpHYeqd4Nr3Y9IrNgiNa5Plg33iP+lrlucXcefyd2LeJZ7yTHSSlUqhC9fJvQ76k6CoBl3a/o9GPQhIk4smOwGgJ4O+ER/+qi97mmH5Nv23B5TXlOdl2w74EkYqlyYk05pbP5Hl0/XVoBMlJdo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=L2v7eaEC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="L2v7eaEC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 470DAC4CED1; Sun, 29 Dec 2024 13:53:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1735480441; bh=Mjk7H9T4yOglu2hD+Hop4F3BZQxBR6z2904vQhHkkUA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=L2v7eaECT3SyNdexIgdukCMzHRPzZH94Y8ZQEtDXYukUc7hVEpbTa/ElyJnwunZ2H c6II6VbyksGjegG8AAhpL6R6ZEf5mncUe9qkzmMcS7AovawPqeQxTVbvI9y0l/JM14 gq8Hfj/8mddhM2mVStec1FWy7KGKShARN5jd3TfUPV47x136C2BODMqlsgWNH6880X NpoUgWCtR30AsJC2T+tu0p9Co5P3MV/UhzkYjUC4bZlrTII4Hbo+GodOtqHShAZB4S 8ZhDp5ewpCKlbnOxsIkRc5l9xyyePIVBTEc47lP0a66O3iCLJ0DRZIxQZ6oLHPQbEp 2o9ErIIbnICIQ== From: akemnade@kernel.org To: Tero Kristo , Andreas Kemnade , Tony Lindgren , devicetree@vger.kernel.org, Stephen Boyd , Conor Dooley , Rob Herring , linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Michael Turquette , linux-clk@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCH 2/2] dt-bindings: clock: ti: Convert composite.txt to json-schema Date: Sun, 29 Dec 2024 14:53:51 +0100 Message-Id: <20241229135351.5014-3-akemnade@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241229135351.5014-1-akemnade@kernel.org> References: <20241229135351.5014-1-akemnade@kernel.org> Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Andreas Kemnade Convert the OMAP gate clock device tree binding to json-schema. Specify the creator of the original binding as a maintainer. Choose GPL-only license because original binding was also GPL. Signed-off-by: Andreas Kemnade --- .../bindings/clock/ti/composite.txt | 55 ------------- .../bindings/clock/ti/ti,composite-clock.yaml | 80 +++++++++++++++++++ 2 files changed, 80 insertions(+), 55 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/ti/composite.txt create mode 100644 Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/ti/composite.txt b/Documentation/devicetree/bindings/clock/ti/composite.txt deleted file mode 100644 index 238e6f7d74f8..000000000000 --- a/Documentation/devicetree/bindings/clock/ti/composite.txt +++ /dev/null @@ -1,55 +0,0 @@ -Binding for TI composite clock. - -This binding uses the common clock binding[1]. It assumes a -register-mapped composite clock with multiple different sub-types; - -a multiplexer clock with multiple input clock signals or parents, one -of which can be selected as output, this behaves exactly as [2] - -an adjustable clock rate divider, this behaves exactly as [3] - -a gating function which can be used to enable and disable the output -clock, this behaves exactly as [4] - -The binding must provide a list of the component clocks that shall be -merged to this clock. The component clocks shall be of one of the -"ti,*composite*-clock" types. - -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt -[2] Documentation/devicetree/bindings/clock/ti/ti,mux-clock.yaml -[3] Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml -[4] Documentation/devicetree/bindings/clock/ti/gate.txt - -Required properties: -- compatible : shall be: "ti,composite-clock" -- clocks : link phandles of component clocks -- #clock-cells : from common clock binding; shall be set to 0. - -Optional properties: -- clock-output-names : from common clock binding. - -Examples: - -usb_l4_gate_ick: usb_l4_gate_ick { - #clock-cells = <0>; - compatible = "ti,composite-interface-clock"; - clocks = <&l4_ick>; - ti,bit-shift = <5>; - reg = <0x0a10>; -}; - -usb_l4_div_ick: usb_l4_div_ick { - #clock-cells = <0>; - compatible = "ti,composite-divider-clock"; - clocks = <&l4_ick>; - ti,bit-shift = <4>; - ti,max-div = <1>; - reg = <0x0a40>; - ti,index-starts-at-one; -}; - -usb_l4_ick: usb_l4_ick { - #clock-cells = <0>; - compatible = "ti,composite-clock"; - clocks = <&usb_l4_gate_ick>, <&usb_l4_div_ick>; -}; diff --git a/Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml new file mode 100644 index 000000000000..b7063764bc0a --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti/ti,composite-clock.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/ti/ti,composite-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments composite clock + +maintainers: + - Tero Kristo + +description: | + This binding assumes a register-mapped composite clock with multiple + different sub-types; + + a multiplexer clock with multiple input clock signals or parents, one + of which can be selected as output, this behaves exactly as [1]. + + an adjustable clock rate divider, this behaves exactly as [2]. + + a gating function which can be used to enable and disable the output + clock, this behaves exactly as [3]. + + The binding must provide a list of the component clocks that shall be + merged to this clock. The component clocks shall be of one of the + "ti,*composite*-clock" types. + + [1] Documentation/devicetree/bindings/clock/ti/ti,mux-clock.yaml + [2] Documentation/devicetree/bindings/clock/ti/ti,divider-clock.yaml + [3] Documentation/devicetree/bindings/clock/ti/ti,gate-clock.yaml + +properties: + compatible: + const: ti,composite-clock + + "#clock-cells": + const: 0 + + clocks: true + + clock-output-names: + maxItems: 1 + +required: + - compatible + - "#clock-cells" + - clocks + +additionalProperties: false + +examples: + - | + bus { + #address-cells = <1>; + #size-cells = <0>; + + usb_l4_gate_ick: clock-controller@a10 { + #clock-cells = <0>; + compatible = "ti,composite-interface-clock"; + clocks = <&l4_ick>; + ti,bit-shift = <5>; + reg = <0x0a10>; + }; + + usb_l4_div_ick: clock-controller@a40 { + #clock-cells = <0>; + compatible = "ti,composite-divider-clock"; + clocks = <&l4_ick>; + ti,bit-shift = <4>; + ti,max-div = <1>; + reg = <0x0a40>; + ti,index-starts-at-one; + }; + }; + + clock-controller { + #clock-cells = <0>; + compatible = "ti,composite-clock"; + clocks = <&usb_l4_gate_ick>, <&usb_l4_div_ick>; + };