linux-kernel - Re: [PATCH v2 5/8] venus: pm_helpers: Check instance state when calculate instance frequency

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Date:   Sat, 28 Nov 2020 22:08:26 -0800
From:   Fritz Koenig <frkoenig@...omium.org>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vikash Garodia <vgarodia@...eaurora.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>
Subject: Re: [PATCH v2 5/8] venus: pm_helpers: Check instance state when
 calculate instance frequency

On Wed, Nov 11, 2020 at 6:38 AM Stanimir Varbanov
<stanimir.varbanov@...aro.org> wrote:
>
> Skip calculating instance frequency if it is not in running state.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> ---
>  drivers/media/platform/qcom/venus/pm_helpers.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index ca99908ca3d3..cc84dc5e371b 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -940,6 +940,9 @@ static unsigned long calculate_inst_freq(struct venus_inst *inst,
>
>         mbs_per_sec = load_per_instance(inst);
>
> +       if (inst->state != INST_START)
> +               return 0;
> +
>         vpp_freq = mbs_per_sec * inst->clk_data.codec_freq_data->vpp_freq;
>         /* 21 / 20 is overhead factor */
>         vpp_freq += vpp_freq / 20;
> --
> 2.17.1
>

Reviewed-by: Fritz Koenig <frkoenig@...omium.org>