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[66.90.144.107]) by smtp.gmail.com with ESMTPSA id g13-20020a544f8d000000b0034d8abf42f1sm654320oiy.23.2022.09.30.10.47.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Sep 2022 10:47:08 -0700 (PDT) Received: (nullmailer pid 569106 invoked by uid 1000); Fri, 30 Sep 2022 17:47:07 -0000 Date: Fri, 30 Sep 2022 12:47:07 -0500 From: Rob Herring To: Lee Jones Cc: Biju Das , Krzysztof Kozlowski , devicetree@vger.kernel.org, Geert Uytterhoeven , Chris Paterson , Biju Das , Prabhakar Mahadev Lad , linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH RFC 1/7] dt-bindings: mfd: Document RZ/G2L MTU3a bindings Message-ID: <20220930174707.GA567190-robh@kernel.org> References: <20220929103043.1228235-1-biju.das.jz@bp.renesas.com> <20220929103043.1228235-2-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org On Thu, Sep 29, 2022 at 06:53:49PM +0100, Lee Jones wrote: > On Thu, 29 Sep 2022, Biju Das wrote: > > > The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in > > the Renesas RZ/G2L family SoC's. It consists of eight 16-bit timer > > channels and one 32-bit timer channel. It supports the following > > functions > > - Counter > > - Timer > > - PWM > > > > Signed-off-by: Biju Das > > --- > > It is same as [1]. Just sending this patch to avoid any bot error for > > the subsequent patches. > > [1] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20220926132114.60396-3-biju.das.jz@bp.renesas.com/ > > --- > > .../bindings/mfd/renesas,rzg2l-mtu3.yaml | 275 ++++++++++++++++++ > > 1 file changed, 275 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml > > > > diff --git a/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml b/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml > > new file mode 100644 > > index 000000000000..c1fae8e8d9f9 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mfd/renesas,rzg2l-mtu3.yaml > > @@ -0,0 +1,275 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/mfd/renesas,rzg2l-mtu3.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Renesas RZ/G2L Multi-Function Timer Pulse Unit 3 (MTU3a) bindings > > + > > +maintainers: > > + - Biju Das > > + > > +description: | > > + This hardware block pconsisting of eight 16-bit timer channels and one > > + 32- bit timer channel. It supports the following specifications: > > + - Pulse input/output: 28 lines max. > > + - Pulse input 3 lines > > + - Count clock 11 clocks for each channel (14 clocks for MTU0, 12 clocks > > + for MTU2, and 10 clocks for MTU5, four clocks for MTU1-MTU2 combination > > + (when LWA = 1)) > > + - Operating frequency Up to 100 MHz > > + - Available operations [MTU0 to MTU4, MTU6, MTU7, and MTU8] > > + - Waveform output on compare match > > + - Input capture function (noise filter setting available) > > + - Counter-clearing operation > > + - Simultaneous writing to multiple timer counters (TCNT) > > + (excluding MTU8). > > + - Simultaneous clearing on compare match or input capture > > + (excluding MTU8). > > + - Simultaneous input and output to registers in synchronization with > > + counter operations (excluding MTU8). > > + - Up to 12-phase PWM output in combination with synchronous operation > > + (excluding MTU8) > > + - [MTU0 MTU3, MTU4, MTU6, MTU7, and MTU8] > > + - Buffer operation specifiable > > + - [MTU1, MTU2] > > + - Phase counting mode can be specified independently > > + - 32-bit phase counting mode can be specified for interlocked operation > > + of MTU1 and MTU2 (when TMDR3.LWA = 1) > > + - Cascade connection operation available > > + - [MTU3, MTU4, MTU6, and MTU7] > > + - Through interlocked operation of MTU3/4 and MTU6/7, the positive and > > + negative signals in six phases (12 phases in total) can be output in > > + complementary PWM and reset-synchronized PWM operation. > > + - In complementary PWM mode, values can be transferred from buffer > > + registers to temporary registers at crests and troughs of the timer- > > + counter values or when the buffer registers (TGRD registers in MTU4 > > + and MTU7) are written to. > > + - Double-buffering selectable in complementary PWM mode. > > + - [MTU3 and MTU4] > > + - Through interlocking with MTU0, a mode for driving AC synchronous > > + motors (brushless DC motors) by using complementary PWM output and > > + reset-synchronized PWM output is settable and allows the selection > > + of two types of waveform output (chopping or level). > > + - [MTU5] > > + - Capable of operation as a dead-time compensation counter. > > + - [MTU0/MTU5, MTU1, MTU2, and MTU8] > > + - 32-bit phase counting mode specifiable by combining MTU1 and MTU2 and > > + through interlocked operation with MTU0/MTU5 and MTU8. > > + - Interrupt-skipping function > > + - In complementary PWM mode, interrupts on crests and troughs of counter > > + values and triggers to start conversion by the A/D converter can be > > + skipped. > > + - Interrupt sources: 43 sources. > > + - Buffer operation: > > + - Automatic transfer of register data (transfer from the buffer > > + register to the timer register). > > + - Trigger generation > > + - A/D converter start triggers can be generated > > + - A/D converter start request delaying function enables A/D converter > > + to be started with any desired timing and to be synchronized with > > + PWM output. > > + - Low power consumption function > > + - The MTU3a can be placed in the module-stop state. > > + > > +properties: > > + compatible: > > + items: > > + - enum: > > + - renesas,r9a07g044-mtu3 # RZ/G2{L,LC} > > + - renesas,r9a07g054-mtu3 # RZ/V2L > > + - const: renesas,rzg2l-mtu3 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + items: > > + - description: MTU0.TGRA input capture/compare match > > + - description: MTU0.TGRB input capture/compare match > > + - description: MTU0.TGRC input capture/compare match > > + - description: MTU0.TGRD input capture/compare match > > + - description: MTU0.TCNT overflow > > + - description: MTU0.TGRE compare match > > + - description: MTU0.TGRF compare match > > + - description: MTU1.TGRA input capture/compare match > > + - description: MTU1.TGRB input capture/compare match > > + - description: MTU1.TCNT overflow > > + - description: MTU1.TCNT underflow > > + - description: MTU2.TGRA input capture/compare match > > + - description: MTU2.TGRB input capture/compare match > > + - description: MTU2.TCNT overflow > > + - description: MTU2.TCNT underflow > > + - description: MTU3.TGRA input capture/compare match > > + - description: MTU3.TGRB input capture/compare match > > + - description: MTU3.TGRC input capture/compare match > > + - description: MTU3.TGRD input capture/compare match > > + - description: MTU3.TCNT overflow > > + - description: MTU4.TGRA input capture/compare match > > + - description: MTU4.TGRB input capture/compare match > > + - description: MTU4.TGRC input capture/compare match > > + - description: MTU4.TGRD input capture/compare match > > + - description: MTU4.TCNT overflow/underflow > > + - description: MTU5.TGRU input capture/compare match > > + - description: MTU5.TGRV input capture/compare match > > + - description: MTU5.TGRW input capture/compare match > > + - description: MTU6.TGRA input capture/compare match > > + - description: MTU6.TGRB input capture/compare match > > + - description: MTU6.TGRC input capture/compare match > > + - description: MTU6.TGRD input capture/compare match > > + - description: MTU6.TCNT overflow > > + - description: MTU7.TGRA input capture/compare match > > + - description: MTU7.TGRB input capture/compare match > > + - description: MTU7.TGRC input capture/compare match > > + - description: MTU7.TGRD input capture/compare match > > + - description: MTU7.TCNT overflow/underflow > > + - description: MTU8.TGRA input capture/compare match > > + - description: MTU8.TGRB input capture/compare match > > + - description: MTU8.TGRC input capture/compare match > > + - description: MTU8.TGRD input capture/compare match > > + - description: MTU8.TCNT overflow > > + - description: MTU8.TCNT underflow > > + > > + interrupt-names: > > + items: > > + - const: tgia0 > > + - const: tgib0 > > + - const: tgic0 > > + - const: tgid0 > > + - const: tgiv0 > > + - const: tgie0 > > + - const: tgif0 > > + - const: tgia1 > > + - const: tgib1 > > + - const: tgiv1 > > + - const: tgiu1 > > + - const: tgia2 > > + - const: tgib2 > > + - const: tgiv2 > > + - const: tgiu2 > > + - const: tgia3 > > + - const: tgib3 > > + - const: tgic3 > > + - const: tgid3 > > + - const: tgiv3 > > + - const: tgia4 > > + - const: tgib4 > > + - const: tgic4 > > + - const: tgid4 > > + - const: tgiv4 > > + - const: tgiu5 > > + - const: tgiv5 > > + - const: tgiw5 > > + - const: tgia6 > > + - const: tgib6 > > + - const: tgic6 > > + - const: tgid6 > > + - const: tgiv6 > > + - const: tgia7 > > + - const: tgib7 > > + - const: tgic7 > > + - const: tgid7 > > + - const: tgiv7 > > + - const: tgia8 > > + - const: tgib8 > > + - const: tgic8 > > + - const: tgid8 > > + - const: tgiv8 > > + - const: tgiu8 > > + > > + clocks: > > + maxItems: 1 > > + > > + power-domains: > > + maxItems: 1 > > + > > + resets: > > + maxItems: 1 > > + > > + "#address-cells": > > + const: 1 > > + > > + "#size-cells": > > + const: 0 > > + > > +required: > > + - compatible > > + - reg > > + - interrupts > > + - interrupt-names > > + - clocks > > + - power-domains > > + - resets > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include > > + #include > > + > > + mtu3: timer@10001200 { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + compatible = "renesas,r9a07g044-mtu3", "renesas,rzg2l-mtu3"; > > + reg = <0x10001200 0xb00>; > > + interrupts = , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + , > > + ; > > + interrupt-names = "tgia0", "tgib0", "tgic0", "tgid0", "tgiv0", "tgie0", > > + "tgif0", > > + "tgia1", "tgib1", "tgiv1", "tgiu1", > > + "tgia2", "tgib2", "tgiv2", "tgiu2", > > + "tgia3", "tgib3", "tgic3", "tgid3", "tgiv3", > > + "tgia4", "tgib4", "tgic4", "tgid4", "tgiv4", > > + "tgiu5", "tgiv5", "tgiw5", > > + "tgia6", "tgib6", "tgic6", "tgid6", "tgiv6", > > + "tgia7", "tgib7", "tgic7", "tgid7", "tgiv7", > > + "tgia8", "tgib8", "tgic8", "tgid8", "tgiv8", "tgiu8"; > > Not sure you need to list all of the IRQs in the example. You do, because that's what the schema says is valid. Rob