linux-kernel - Re: [PATCH v2 10/11] clk: qcom: gpucc-msm8998: Add resets, cxc, fix flags on gpu_gx

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Message-ID: <161280855974.76967.14566908373250985342@swboyd.mtv.corp.google.com>
Date:   Mon, 08 Feb 2021 10:22:39 -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 10/11] clk: qcom: gpucc-msm8998: Add resets, cxc, fix flags on gpu_gx_gdsc

Quoting AngeloGioacchino Del Regno (2021-01-14 14:10:58)
> The GPU GX GDSC has GPU_GX_BCR reset and gfx3d_clk CXC, as stated
> on downstream kernels (and as verified upstream, because otherwise
> random lockups happen).
> Also, add PWRSTS_RET and NO_RET_PERIPH: also as found downstream,
> and also as verified here, to avoid GPU related lockups it is
> necessary to force retain mem, but *not* peripheral when enabling
> this GDSC (and, of course, the inverse on disablement).
> 
> With this change, the GPU finally works flawlessly on my four
> different MSM8998 devices from two different manufacturers.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
> ---

Applied to clk-next