linux-kernel - Re: [PATCH v2 09/11] clk: qcom: mmcc-msm8998: Set bimc_smmu

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Message-ID: <161280852103.76967.6165783606297241763@swboyd.mtv.corp.google.com>
Date:   Mon, 08 Feb 2021 10:22:01 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        linux-arm-msm@...r.kernel.org
Cc:     konrad.dybcio@...ainline.org, marijn.suijten@...ainline.org,
        martin.botka@...ainline.org, phone-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org, agross@...nel.org,
        bjorn.andersson@...aro.org, mturquette@...libre.com,
        robh+dt@...nel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
Subject: Re: [PATCH v2 09/11] clk: qcom: mmcc-msm8998: Set bimc_smmu_gdsc always on

Quoting AngeloGioacchino Del Regno (2021-01-14 14:10:57)
> This GDSC enables (or cuts!) power to the Multimedia Subsystem IOMMU
> (mmss smmu), which has bootloader pre-set secure contexts.
> In the event of a complete power loss, the secure contexts will be
> reset and the hypervisor will crash the SoC.
> 
> To prevent this, and get a working multimedia subsystem, set this
> GDSC as always on.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
> ---

Applied to clk-next