From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1FF08E8FDD1 for ; Wed, 4 Oct 2023 07:45:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=HU+GY9ZO3nS8bnOhJRvX/aB05mVlzOSMjBF4vQqm5Ug=; b=BAt3bISsPlybM/ 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to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VBA0XNaTJ/GmTYAgKn/HyRrIiXhJIs4Y4o8burTOcdA=; b=eHmtNjrgLvEZb0H5aTAt5rVWa9YJ34C6Zk+y1qUhwwnyX8RGB7xwNdigpW5TDuseT1ErJC O2TLcu1Q13w9Xz+cZrreXdX2AwAl8hLZHTmdpF2e/fx7B9lWB9gEGjS2SQxfcQ30MPIxpZ C+mLSLLb/Yfs+xNtNGphamBiHOMkRgZ+qlc2VGIlNk2RGDoEIOpHisxUyax0FGggLP4d2J AkE2jAP2msO8fl3FV8x+FynJUx36e0tixmwC/C83AuzOp4eevww3/YUbic9MJXNLeAF7Lc HASsplzEoE3dpkjvQxp9v9kUiXMBhf99j4zO6WUPgzTpHKS4M2cY+u385RPqhg== Date: Wed, 4 Oct 2023 09:44:55 +0200 From: Miquel Raynal To: niravkumar.l.rabara@intel.com Cc: Richard Weinberger , Vignesh Raghavendra , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] dt-bindings: mtd: cadence: convert cadence-nand-controller.txt to yaml Message-ID: <20231004094455.1a6a19e1@xps-13> In-Reply-To: <20231004061214.17176-1-niravkumar.l.rabara@intel.com> References: <20231004061214.17176-1-niravkumar.l.rabara@intel.com> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231004_004504_279579_22399DE8 X-CRM114-Status: GOOD ( 24.63 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGVsbG8sCgpuaXJhdmt1bWFyLmwucmFiYXJhQGludGVsLmNvbSB3cm90ZSBvbiBXZWQsICA0IE9j dCAyMDIzIDE0OjEyOjE0ICswODAwOgoKPiBGcm9tOiBOaXJhdmt1bWFyIEwgUmFiYXJhIDxuaXJh 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to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VBA0XNaTJ/GmTYAgKn/HyRrIiXhJIs4Y4o8burTOcdA=; b=eHmtNjrgLvEZb0H5aTAt5rVWa9YJ34C6Zk+y1qUhwwnyX8RGB7xwNdigpW5TDuseT1ErJC O2TLcu1Q13w9Xz+cZrreXdX2AwAl8hLZHTmdpF2e/fx7B9lWB9gEGjS2SQxfcQ30MPIxpZ C+mLSLLb/Yfs+xNtNGphamBiHOMkRgZ+qlc2VGIlNk2RGDoEIOpHisxUyax0FGggLP4d2J AkE2jAP2msO8fl3FV8x+FynJUx36e0tixmwC/C83AuzOp4eevww3/YUbic9MJXNLeAF7Lc HASsplzEoE3dpkjvQxp9v9kUiXMBhf99j4zO6WUPgzTpHKS4M2cY+u385RPqhg== Date: Wed, 4 Oct 2023 09:44:55 +0200 From: Miquel Raynal To: niravkumar.l.rabara@intel.com Cc: Richard Weinberger , Vignesh Raghavendra , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] dt-bindings: mtd: cadence: convert cadence-nand-controller.txt to yaml Message-ID: <20231004094455.1a6a19e1@xps-13> In-Reply-To: <20231004061214.17176-1-niravkumar.l.rabara@intel.com> References: <20231004061214.17176-1-niravkumar.l.rabara@intel.com> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: miquel.raynal@bootlin.com X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Hello, niravkumar.l.rabara@intel.com wrote on Wed, 4 Oct 2023 14:12:14 +0800: > From: Niravkumar L Rabara >=20 > Convert cadence-nand-controller.txt to yaml format. Looks good to me, one question below. > Signed-off-by: Niravkumar L Rabara > --- > .../devicetree/bindings/mtd/cadence,nand.yaml | 73 +++++++++++++++++++ > .../bindings/mtd/cadence-nand-controller.txt | 53 -------------- > 2 files changed, 73 insertions(+), 53 deletions(-) > create mode 100644 Documentation/devicetree/bindings/mtd/cadence,nand.ya= ml > delete mode 100644 Documentation/devicetree/bindings/mtd/cadence-nand-co= ntroller.txt >=20 > diff --git a/Documentation/devicetree/bindings/mtd/cadence,nand.yaml b/Do= cumentation/devicetree/bindings/mtd/cadence,nand.yaml > new file mode 100644 > index 000000000000..781812ac702f > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/cadence,nand.yaml > @@ -0,0 +1,73 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mtd/cadence,nand.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Cadence NAND controller > + > +maintainers: > + - Niravkumar L Rabara > + > +allOf: > + - $ref: nand-controller.yaml > + > +properties: > + compatible: > + items: > + - const: cdns,hp-nfc > + > + reg: > + items: > + - description: Address and length of the controller register set > + - description: Address and length of the Slave DMA data port > + > + reg-names: > + items: > + - const: reg > + - const: sdma > + > + interrupts: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + dmas: > + maxItems: 1 > + > + cdns,board-delay-ps: > + description: | > + Estimated Board delay. The value includes the total round trip > + delay for the signals and is used for deciding on values associated > + with data read capture. The example formula for SDR mode is the > + following. > + board delay =3D RE#PAD delay + PCB trace to device + PCB trace fro= m device > + + DQ PAD delay > + > +required: > + - compatible > + - reg > + - reg-names > + - interrupts > + - clocks > + > +unevaluatedProperties: false > + > +examples: > + - | > + nand-controller@10b80000 { > + compatible =3D "cdns,hp-nfc"; > + reg =3D <0x10b80000 0x10000>, > + <0x10840000 0x10000>; > + reg-names =3D "reg", "sdma"; > + #address-cells =3D <1>; > + #size-cells =3D <0>; > + interrupts =3D <0 97 4>; > + clocks =3D <&nf_clk>; > + cdns,board-delay-ps =3D <4830>; > + > + nand@0 { > + reg =3D <0>; > + }; > + }; > diff --git a/Documentation/devicetree/bindings/mtd/cadence-nand-controlle= r.txt b/Documentation/devicetree/bindings/mtd/cadence-nand-controller.txt > deleted file mode 100644 > index d2eada5044b2..000000000000 > --- a/Documentation/devicetree/bindings/mtd/cadence-nand-controller.txt > +++ /dev/null > @@ -1,53 +0,0 @@ > -* Cadence NAND controller > - > -Required properties: > - - compatible : "cdns,hp-nfc" > - - reg : Contains two entries, each of which is a tuple consisting of a > - physical address and length. The first entry is the address and > - length of the controller register set. The second entry is the > - address and length of the Slave DMA data port. > - - reg-names: should contain "reg" and "sdma" > - - #address-cells: should be 1. The cell encodes the chip select connec= tion. > - - #size-cells : should be 0. > - - interrupts : The interrupt number. > - - clocks: phandle of the controller core clock (nf_clk). > - > -Optional properties: > - - dmas: shall reference DMA channel associated to the NAND controller > - - cdns,board-delay-ps : Estimated Board delay. The value includes the = total > - round trip delay for the signals and is used for deciding on values > - associated with data read capture. The example formula for SDR mode = is > - the following: > - board delay =3D RE#PAD delay + PCB trace to device + PCB trace from = device > - + DQ PAD delay > - > -Child nodes represent the available NAND chips. This is not fully pictured in the current schema, by referencing nand-controller.yaml I believe you allow all kind of direct partitioning (which is legacy, and not supposed to be supported here). Can you try to define a partition directly within the controller node in the example and see whether it still passes the checks? Thanks, Miqu=C3=A8l