linux-kernel - Re: [PATCH V2] arm64: dts: imx8mp: Add NPU Node

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Message-ID: <20231127025839.GU87953@dragon>
Date:   Mon, 27 Nov 2023 10:58:39 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Adam Ford <aford173@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        alexander.stein@...tq-group.com, aford@...conembedded.com,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] arm64: dts: imx8mp: Add NPU Node

On Sun, Oct 22, 2023 at 11:19:10AM -0500, Adam Ford wrote:
> The NPU is based on the Vivante GC8000 and its power-domain
> is controlled my pgc_mlmix.  Since the power-domain uses
> some of these clocks, setup the clock parent and rates
> inside the power-domain, and add the NPU node.
> 
> The data sheet states the CLK_ML_AHB should be 300MHz for
> nominal, but 800MHz clock will divide down to 266 instead.
> Boards which operate in over-drive mode should update the
> clocks on their boards accordingly.  When the driver loads,
> the NPU numerates as:
> 
>  etnaviv-gpu 38500000.npu: model: GC8000, revision: 8002
> 
> Signed-off-by: Adam Ford <aford173@...il.com>

Applied, thanks!