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 3DE2976C6E; Mon, 29 Jan 2024 17:37:39 +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=1706549860; cv=none; b=OyWXc4OboMcdHYelInvnvSuJKDcFmdASiS98pI98v53KhJoBlK32C6kb8x5deNpAmxyWEU1+fFSBSjjoY8iLoY7PGc+YxUPRKWFMGGZanFGgBnwbUEXi0GBBBRhoSsx2CEj4lxIsBtP2vrmuOIeyNxZfAXGoPPEV/bZz+MMS3QE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706549860; c=relaxed/simple; bh=wWhOLdLXWR1J1NWYiGZwNuJQrSw+KC0GWCJmCtB76nM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rZR/EwD3J07wRxU9RDH7QaN2Q5rI1ubOOj8QiWGk3VX1bcKYYui1hjGc8FL0QnnNjlaNkXQH/uyUwTzZiTBiqQH/6t1bu9DDVJ5bF/LPB3Z47YFpdUX0M9FBHS7ceggZleDaC6WGY43hF5PAulFTL74Y5FRF98uuwZazAyhbhOo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HCfLqCvL; 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="HCfLqCvL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0385BC433C7; Mon, 29 Jan 2024 17:37:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706549859; bh=wWhOLdLXWR1J1NWYiGZwNuJQrSw+KC0GWCJmCtB76nM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HCfLqCvLEn2f/rHk1ypJKgFsAPd5jmBc2bDnCVeJR1lxgrjULX/wI5r4ZUBE3kusZ /ZjBWLjTpVzK12QvQaRnSiqKSQs41szRviG17dOAvJ2S/JpXODaMyzLbeXYFJ7G/qo QZLUqntvH2OX9vLeXqUOFGMC9xZ2wdLd5YC2r8nYdMpnLFhBZzkW2f4Fm69HuqXYoO 2WWH4WaBUz6qkkJWa4rpwTfLxiW5yv0cWOK02mnJT28FsU5Ag6G3AHRzQS4TwgG/4I rhUy/OXX5aQIB0rxZjUQL6xToHDrug8kK9Eej7Ghfa0H/wwyYCSGNlNLgwCPQ3o9+d h7IlwIac7LuGw== Date: Mon, 29 Jan 2024 17:37:33 +0000 From: Conor Dooley To: Luca Weiss Cc: Bjorn Andersson , Konrad Dybcio , Stanimir Varbanov , Vikash Garodia , Bryan O'Donoghue , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Stanimir Varbanov , linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] media: dt-bindings: qcom,sc7280-venus: Allow one IOMMU entry Message-ID: <20240129-numerate-brought-4660c2a89719@spud> References: <20240129-sc7280-venus-bindings-v1-1-20a9ba194c60@fairphone.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="uIfXiQKiceuPgh4l" Content-Disposition: inline In-Reply-To: <20240129-sc7280-venus-bindings-v1-1-20a9ba194c60@fairphone.com> --uIfXiQKiceuPgh4l Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jan 29, 2024 at 08:48:54AM +0100, Luca Weiss wrote: > Some SC7280-based boards crash when providing the "secure_non_pixel" > context bank, so allow only one iommu in the bindings also. >=20 > Signed-off-by: Luca Weiss Do we have any idea why this happens? How is someone supposed to know whether or not their system requires you to only provide one iommu? Yes, a crash might be the obvious answer, but is there a way of knowing without the crashes? Cheers, Conor. > --- > Reference: > https://lore.kernel.org/linux-arm-msm/20231201-sc7280-venus-pas-v3-2-bc13= 2dc5fc30@fairphone.com/ > --- > Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml | 1 + > 1 file changed, 1 insertion(+) >=20 > diff --git a/Documentation/devicetree/bindings/media/qcom,sc7280-venus.ya= ml b/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml > index 8f9b6433aeb8..10c334e6b3dc 100644 > --- a/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml > +++ b/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml > @@ -43,6 +43,7 @@ properties: > - const: vcodec_bus > =20 > iommus: > + minItems: 1 > maxItems: 2 > =20 > interconnects: >=20 > --- > base-commit: 596764183be8ebb13352b281a442a1f1151c9b06 > change-id: 20240129-sc7280-venus-bindings-6e62a99620de >=20 > Best regards, > --=20 > Luca Weiss >=20 --uIfXiQKiceuPgh4l Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZbfiXQAKCRB4tDGHoIJi 0u+kAQD6hQJxEFZGeDrdCSNz807MgW2B9L9wp4d7nPT8zipYcQD+PHraEQhlwbax l6JDJfuJlD+YZfuAGqEETe5slN7CuA8= =uaeV -----END PGP SIGNATURE----- --uIfXiQKiceuPgh4l--