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 169E6CCA476 for ; Fri, 10 Oct 2025 08:46:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=em3FP40NAlkXUDxg+UcVYnAcVC7yjYOpeobfjDjtlDs=; b=gLeaum12p/rS/eW+r8xWgE5tYV xrqeu8Wm9LZA2Ug4PRh1SVskfu8AlQ3ORKIyWuPdpv5ma2GLdhkDUYkGu3KxmjIIhkFoSImT3PhtW tT7xRoc9XRnHKPKM0/g4ZFovZ/HSehXSOBNoJvf5g49WyMcZ1JlYuUUScat/hVrqGOouOx+9S3JhT W0Zqw9EfAazhPVjOIjGRD4HCLNJ8XvkhuLWI8lSNt1rzNfFRs7ECMjnnb2fW/2iFwtFnago7cvoBy HUoO1iUZ5mxySesqiAMLLcuETNp9pcTbLjXXs+zj5bAAoi+CmZLQ/GzqhPD0VmtmgtCsF6zxZCmaz aIEGcayQ==; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/10/2025 10:40, Richard Genoud wrote: > The H616 NAND controller is quite different from the A10 and A23 ones, > some registers offset changed, and some new one are introduced. > Also, the DMA handling is different (it uses chained descriptors) > Subject: not new compatible, but "H616" or whatever device is called. Otherwise every commit would be called like that making git log --oneline useless. > So, introduce a new compatible to represent this version of the IP. > > Signed-off-by: Richard Genoud > --- > .../mtd/allwinner,sun4i-a10-nand.yaml | 56 ++++++++++++++----- > 1 file changed, 43 insertions(+), 13 deletions(-) > > diff --git a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml > index 054b6b8bf9b9..cc63091fe936 100644 > --- a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml > +++ b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml > @@ -6,34 +6,64 @@ $schema: http://devicetree.org/meta-schemas/core.yaml# > > title: Allwinner A10 NAND Controller > > -allOf: > - - $ref: nand-controller.yaml > - > maintainers: > - Chen-Yu Tsai > - Maxime Ripard > > +allOf: > + - $ref: nand-controller.yaml If moving it, can you place it like in example-schema, so at the bottom, above unevaluatedProps? > + > + - if: > + properties: > + compatible: > + contains: > + enum: > + - allwinner,sun4i-a10-nand > + - allwinner,sun8i-a23-nand-controller > + then: > + properties: > + clocks: > + items: > + - description: Bus Clock > + - description: Module Clock > + clock-names: > + items: > + - const: ahb > + - const: mod > + > + - if: > + properties: > + compatible: > + contains: > + enum: > + - allwinner,sun50i-h616-nand-controller > + then: > + properties: > + clocks: > + items: > + - description: Bus Clock > + - description: Module Clock > + - description: ECC Clock > + - description: MBus Clock > + clock-names: > + items: > + - const: ahb > + - const: mod > + - const: ecc > + - const: mbus > + > properties: > compatible: > enum: > - allwinner,sun4i-a10-nand > - allwinner,sun8i-a23-nand-controller > + - allwinner,sun50i-h616-nand-controller > reg: > maxItems: 1 > > interrupts: > maxItems: 1 > > - clocks: > - items: > - - description: Bus Clock > - - description: Module Clock > - > - clock-names: > - items: > - - const: ahb > - - const: mod You cannot remove it. Broadest constraints, see writing schema. or my standard reference example: https://elixir.bootlin.com/linux/v6.11-rc6/source/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml#L127 Best regards, Krzysztof