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 613AD33FD; Thu, 6 Mar 2025 13:51:12 +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=1741269072; cv=none; b=lT4Su9z+snZZ4dnBNnuvQXB5+wF4na0T+ggF7AQW5xKZxhI1ibHiSkmmI4W7zXM8oldOGuXGiiB6vjsL9J7OHHLjeyBl3oguGBGq0Gw7m4nvpggV9kGJWYtvVYkoD1ZCxm2efST3uFS27ltXrxUB9Fai9QncctYSI2h73DmHmcg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741269072; c=relaxed/simple; bh=MDHqWx3qK8RGM3fr6S9WaYEhaVQkVBdZ75ZCdRSLAdY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=kzHdMR7+Rkp6gSMy3SqsDaCwn0G2JoAR2V/ZhwP05qGU0L25eExyf6viF7xJU/U6E/8CH/30ZF3ynsRvi/+MTb5LnRILycG21KtDNjctCyZ5bigU1jNuj/AAA8J3Zf8luWLIj1RCU0LoMyWYmdSCoSnBBhnuFhUHPCP15bH67Bw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CY5IBsiF; 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="CY5IBsiF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C3D6C4CEE4; Thu, 6 Mar 2025 13:51:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1741269071; bh=MDHqWx3qK8RGM3fr6S9WaYEhaVQkVBdZ75ZCdRSLAdY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=CY5IBsiFS9eBDNIWJ7sQjbryFpiM2GgSdUyXXiqGdWXk8uyLplvdlIkMSTgkEJfEl oIbo4qRtoLfrO/QJIs7+mdUyKWhMU7elEfrNasigeMs09OkxxC4Tj1zSL4PDsh7d15 3B4MfCcLZgca4I+d7qvBH7bLyT6mG9aN7unQL7SEM+uejp2HsetY636RFHmAd+HUqz E1KfN4g9Mk3Ufe40wVwhVmVMRmaWmssNWvf9uajzHFaVM5dG6TUyDn2FVyoTDhXoTS dvk7Xnb1rGlGn9g64KmHOd22Kg3m+FJOxBVuDNQLlCR27sEGy0lLWtWVn/038Io9cB TeN3yHfWu+D6g== Message-ID: Date: Thu, 6 Mar 2025 14:51:05 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] dt-bindings: memory-controllers: samsung,exynos4210-srom: Enforce child props To: Rob Herring , Krzysztof Kozlowski Cc: Conor Dooley , Alim Akhtar , Bjorn Andersson , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20250306085849.32852-1-krzysztof.kozlowski@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 06/03/2025 14:39, Rob Herring wrote: > Why do we need this? Any child node should have a schema which needs > to include mc-peripheral-props.yaml if any properties from it can be > used. >From correctness point of view, you are right, we don't need it. However: 1. Convention was so far to have in every controller. I think this also is easier to understand whenever one reads the bindings - clear documentation what children on this bus should look like. 2. To clearly document from where samsung,srom-timing comes in the required block: https://web.git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git/tree/Documentation/devicetree/bindings/memory-controllers/exynos-srom.yaml?h=dt/next#n50 Otherwise for me it is a bit confusing to require a property which is nowhere here defined. Best regards, Krzysztof