From mboxrd@z Thu Jan 1 00:00:00 1970 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 558AE307481; Tue, 24 Jun 2025 15:41:31 +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=1750779691; cv=none; b=qGvpqL2cEtmrThEDGR34TKTyxIF1jijeQZ2JjVGdec7gyxeBc2JKlJOqNx5LK6BY/BVfmsZMcWNTS0ueScwjJmcczM/XakXep5PzQfATWW1DvPVRh6QCnT/OVQpLrn5UAjJ4GMYJDLjPe0r8N2O9UsNwDwNRj2EY5kQSb+ON//o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750779691; c=relaxed/simple; bh=keGri/uI/2tsjgDYI4UKZWr7Dxp+y7p18oSwIMMwSYE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=kj6flIGaBrBOxMwlEdiRJ4uyFyz1iQfd2hTv5YOIWrtLEcUV7S5FqfGtso5Mh40wTw5YAkMeBB4oZPRa4KEPRAJnIBS66nWC6Hpbj69iMq7s3YwOSprt0NhkGB4G82LG2Oa3U2szrY1mC/l24gs7CXgEm4JTyXMQrfmL/uNr9LQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Xts1lFyE; 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="Xts1lFyE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0B2DFC4CEE3; Tue, 24 Jun 2025 15:41:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750779691; bh=keGri/uI/2tsjgDYI4UKZWr7Dxp+y7p18oSwIMMwSYE=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Xts1lFyEPrS3v/vgymmNjc9s1BM9p3Q3TdAjk9CKJ9acASgR8El8xqOerV1oUNqJf WCTXU/OUhJjPK02nZtF0WYkDulEqKGIZpK1Sql9wZv6gXAkS99VbI3AVM0oN1eV+Tl JxiGYm2OgaHDsUNhZZWpj4dW+CV0LS8SxfRdr5654cPK+nPGnqL1up+LkMlBXWLS5S bWs5C/CtiNhraQcXXfCCh9mFPoQEE3Ih3K3IlsAK0x/r/PtL6wIvoEK3EiKBsJyR8u mRsK3MT8Nl261NjfLkjjO+rpvYBqMEsfutgyuirLhGNV3RJr5nY9fTW25UG04x+qe6 Kv7gquYL01mJw== Message-ID: <83755309-230f-4a5d-a658-f5f0d8714e9a@kernel.org> Date: Tue, 24 Jun 2025 17:41:26 +0200 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/3] dt-bindings: media: Add bindings for the RZ/V2H IVC block To: Dan Scally , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Philipp Zabel , jacopo.mondi@ideasonboard.com, biju.das.jz@bp.renesas.com References: <20250624-ivc-v2-0-e4ecdddb0a96@ideasonboard.com> <20250624-ivc-v2-1-e4ecdddb0a96@ideasonboard.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 24/06/2025 16:17, Dan Scally wrote: > > OK...to throw a spanner into this, I think there's actually two soc codes with the IP; r9a09g057h44 > and r9a09g057h48. renesas,rzg2l-cru.yaml and renesas,rzg2l-csi2.yaml seem to use the 'generic' code > in a way that suggests this: > > compatible: >         items: >             - enum: >                 - renesas,r9a09g057h44-ivc >                 - renesas,r9a09g057h48-ivc >             - const: renesas,rzv2h-ivc There were several reviews where we or at lest me disagreed with above and explained, with arguments, that this is less welcomed choice. > > > And then the filename stays as it is, but the example-schema.yaml to me suggests this, without the > 'generic' code there at all: > > > compatible: >         items: >             - enum: >                 - renesas,r9a09g057h48-ivc >             - const: renesas,r9a09g057h44-ivc > > > Is the latter one right? This is the preferred style, yes. > > >> >>> + >>> + reg: >>> + maxItems: 1 >>> + >>> + interrupts: >>> + maxItems: 1 >>> + >>> + clocks: >>> + items: >>> + - description: Input Video Control block register access clock >>> + - description: Video input data AXI bus clock >>> + - description: ISP system clock >>> + >>> + clock-names: >>> + items: >>> + - const: pclk >>> + - const: vin_aclk >> aclk >> >> vin is redundant. This cannot be anything else than vin. > Fair enough; there's also a clock that the documentation calls "reg_aclk" that goes to the ISP core > and I've been calling that one just "aclk" so the "vin_" was to distinguish them...but maybe I but there is no other aclk here. > should just stop trying to follow the documentation's names; how about "reg", "axi" and "isp" for > both the clock and reset names? pclk, aclk and sclk are also acceptable names if this is how they are called in datasheet, but reg, axi and isp seems better reflect the purpose of these clocks from this device point of view. Best regards, Krzysztof