linux-kernel - Re: [PATCH] venus: core: Fix platform driver shutdown

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Message-ID: <20210119074044.GB17701@dragon>
Date:   Tue, 19 Jan 2021 15:40:45 +0800
From:   Shawn Guo <shawn.guo@...aro.org>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        vgarodia@...eaurora.org,
        Mansur Alisha Shaik <mansur@...eaurora.org>
Subject: Re: [PATCH] venus: core: Fix platform driver shutdown

On Mon, Dec 21, 2020 at 11:58:20AM +0200, Stanimir Varbanov wrote:
> With TZ system reboot cannot finish successfully. To fix that
> enable core clocks by runtime pm before TZ calls and disable
> clocks after that.
> 
> Fixes: 7399139be6b2 ("media: venus: core: add shutdown callback for venus")
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>

Hi Mauro,

Could you help pick this fix up?

Shawn

> ---
>  drivers/media/platform/qcom/venus/core.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index bdd293faaad0..7233a7311757 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -349,8 +349,10 @@ static void venus_core_shutdown(struct platform_device *pdev)
>  {
>  	struct venus_core *core = platform_get_drvdata(pdev);
>  
> +	pm_runtime_get_sync(core->dev);
>  	venus_shutdown(core);
>  	venus_firmware_deinit(core);
> +	pm_runtime_put_sync(core->dev);
>  }
>  
>  static __maybe_unused int venus_runtime_suspend(struct device *dev)
> -- 
> 2.17.1
>