linux-kernel - Re: [PATCH V4 08/11] arm64: dts: imx8mm: Fix VPU Hanging

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Message-ID: <3b1c784ac4e21c2e6d5a645fdf673aa47348c6f4.camel@pengutronix.de>
Date:   Tue, 25 Jan 2022 19:19:16 +0100
From:   Lucas Stach <l.stach@...gutronix.de>
To:     Adam Ford <aford173@...il.com>, linux-media@...r.kernel.org
Cc:     aford@...conembedded.com, cphealy@...il.com,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...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>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: Re: [PATCH V4 08/11] arm64: dts: imx8mm: Fix VPU Hanging

Am Dienstag, dem 25.01.2022 um 11:11 -0600 schrieb Adam Ford:
> The vpumix power domain has a reset assigned to it, however
> when used, it causes a system hang.  Testing has shown that
> it does not appear to be needed anywhere.
> 
> Fixes: d39d4bb15310 ("arm64: dts: imx8mm: add GPC node")
> Signed-off-by: Adam Ford <aford173@...il.com>

Reviewed-by: Lucas Stach <l.stach@...gutronix.de>

> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> index f77f90ed416f..0c7a72c51a31 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> @@ -707,7 +707,6 @@ pgc_vpumix: power-domain@6 {
>  						clocks = <&clk IMX8MM_CLK_VPU_DEC_ROOT>;
>  						assigned-clocks = <&clk IMX8MM_CLK_VPU_BUS>;
>  						assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_800M>;
> -						resets = <&src IMX8MQ_RESET_VPU_RESET>;
>  					};
>  
>  					pgc_vpu_g1: power-domain@7 {