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 544D720E3; Wed, 10 Apr 2024 06:18:26 +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=1712729906; cv=none; b=YlT30qnIMWbwG+JbhCcFoKfMjGnIHKaQHcPwf5J3Ti/xlLAO2/HK7yMgvftWSZA/NrzZ2Jh5YTSP0z/9V2jwS+6lq5iGc0NXSZdcpDq/FhKTUd5QQVBcrWHPpYHwCbkfrSP7dcS3whAnTxlzG8oFpJACUm2Qv0V1OBGyCaR8c1U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712729906; c=relaxed/simple; bh=ZQ64qwPf6Di8vF2RdPh7RxkPgBZXfSpbbGA0ASv1dUY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=GRPbMsQP4A2ODVDaaL1RqHAt+jBQPUMxDwVo9a3NJVpzn7c3EkjxYw0WvzFa3+sdub8WWrpGIXuB2W607GQGME9vlpXr9oeYcPIAK4Ii3qVr7tFdKIBpDqvF/hexVyqVUH3UfNNHePWCWF6b85piYYgdsBjuZ6s8ekm6wx18DXI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Cv05Vhzd; 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="Cv05Vhzd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CC8FC433C7; Wed, 10 Apr 2024 06:18:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712729905; bh=ZQ64qwPf6Di8vF2RdPh7RxkPgBZXfSpbbGA0ASv1dUY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Cv05VhzdPby0jgRBixv3hcdBlNomY+DwZPiZSH8aaIMyApqH5uK/CRDC2UntPg2Cn 5eIlCDAkiBFtxy115phJaapQBI8k+vtl3Hek272/1HDp3DFyCMRIoHxNm5Zi2cHLLQ xHNIiGjY/zVaTA7QcsZWSYXQV0P2wBxSYy23PtUGWG1OvUbsdlMgWO9S5azFKYudbQ 6ttIPWX8MmCsw/UqK8qcS6ogAlgpsZSUrBWO2j2ckxPB04iAINveh1QG8xqz5gHO1+ YfyU+mtdbhmEHvKsHaviWdXu84cks+36wP1Vhibr9QPodAg0gKrnjBODoYsZAyq7Lp eS3gCFS3l6K4w== Message-ID: Date: Wed, 10 Apr 2024 08:18:21 +0200 Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] dt-bindings: host1x: Add missing 'dma-coherent' To: Jon Hunter , Thierry Reding , Mikko Perttunen , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-tegra@vger.kernel.org, devicetree@vger.kernel.org References: <20240409082324.9928-1-jonathanh@nvidia.com> Content-Language: en-US From: Krzysztof Kozlowski Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 09/04/2024 10:23, Jon Hunter wrote: > The dtbs_check reports that the 'dma-coherent' property is "unevaluated > and invalid" for the host1x@13e00000 device on Tegra194 and Tegra234 > platforms. Fix this by updating the dt-binding document for host1x to > add the 'dma-coherent' property for these devices. That's not really proper reason. What if DTS is wrong? The reason could be if device is actually DMA coherent... > > Fixes: 361238cdc525 ("arm64: tegra: Mark host1x as dma-coherent on Tegra194/234") > Signed-off-by: Jon Hunter > --- > .../bindings/display/tegra/nvidia,tegra20-host1x.yaml | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml > index 94c5242c03b2..3563378a01af 100644 > --- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml > +++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml > @@ -177,6 +177,15 @@ allOf: > > required: > - reg-names > + - if: > + properties: > + compatible: > + contains: > + enum: > + - nvidia,tegra194-host1x > + then: > + properties: > + dma-coherent: true Do not define properties in allOf. Put it in top-level. If not all devices are DMA coherent, you can disallow it for certain variants (:false). Best regards, Krzysztof