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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Chen-Yu Tsai <wenst@chromium.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
Date: Tue, 15 Nov 2022 15:11:14 +0100	[thread overview]
Message-ID: <b7936281-fae3-97af-e480-539d2675aa35@linaro.org> (raw)
In-Reply-To: <20221115090644.3602573-2-wenst@chromium.org>

On 15/11/2022 10:06, Chen-Yu Tsai wrote:
> The Hantro G2 video decoder block sits behind an IOMMU. The device tree
> binding needs a property to reference it. Without a reference for the
> implementation to properly configure the IOMMU, it will fault and cause
> the video decoder to fail.
> 
> Add an "iommus" property for referring to the IOMMU port. The master ID
> in the example is taken from the IOMMU fault error message on Linux,
> and the number seems to match the order in the user manual's IOMMU
> diagram.
> 
> Fixes: fd6be12716c4 ("media: dt-bindings: allwinner: document H6 Hantro G2 binding")
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
> ---


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof


WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Chen-Yu Tsai <wenst@chromium.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
Date: Tue, 15 Nov 2022 15:11:14 +0100	[thread overview]
Message-ID: <b7936281-fae3-97af-e480-539d2675aa35@linaro.org> (raw)
In-Reply-To: <20221115090644.3602573-2-wenst@chromium.org>

On 15/11/2022 10:06, Chen-Yu Tsai wrote:
> The Hantro G2 video decoder block sits behind an IOMMU. The device tree
> binding needs a property to reference it. Without a reference for the
> implementation to properly configure the IOMMU, it will fault and cause
> the video decoder to fail.
> 
> Add an "iommus" property for referring to the IOMMU port. The master ID
> in the example is taken from the IOMMU fault error message on Linux,
> and the number seems to match the order in the user manual's IOMMU
> diagram.
> 
> Fixes: fd6be12716c4 ("media: dt-bindings: allwinner: document H6 Hantro G2 binding")
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
> ---


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-11-15 14:11 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-15  9:06 [PATCH 0/2] arm64: allwinner: h6: Add IOMMU reference to Hantro G2 decoder Chen-Yu Tsai
2022-11-15  9:06 ` Chen-Yu Tsai
2022-11-15  9:06 ` [PATCH 1/2] media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property Chen-Yu Tsai
2022-11-15  9:06   ` Chen-Yu Tsai
2022-11-15 14:11   ` Krzysztof Kozlowski [this message]
2022-11-15 14:11     ` Krzysztof Kozlowski
2022-11-15 21:30   ` Jernej Škrabec
2022-11-15 21:30     ` Jernej Škrabec
2022-11-15  9:06 ` [PATCH 2/2] arm64: dts: allwinner: h6: Add IOMMU reference to Hantro G2 Chen-Yu Tsai
2022-11-15  9:06   ` Chen-Yu Tsai
2022-11-15 21:31   ` Jernej Škrabec
2022-11-15 21:31     ` Jernej Škrabec
2022-11-16 18:31 ` [PATCH 0/2] arm64: allwinner: h6: Add IOMMU reference to Hantro G2 decoder Jernej Škrabec
2022-11-16 18:31   ` Jernej Škrabec

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