linux-kernel - Re: [PATCH 2/2] media: venus: vdec: ensure venus is powered on during stream off

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Message-ID: <587f078d-e21c-4781-58d3-7de6fc2f75fa@linaro.org>
Date:   Tue, 12 Apr 2022 13:12:34 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Vikash Garodia <quic_vgarodia@...cinc.com>,
        linux-media@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] media: venus: vdec: ensure venus is powered on during
 stream off

Hi Vikash,

On 4/12/22 10:09, Vikash Garodia wrote:
> Video decoder driver auto-suspends the hardware if there is no
> exchange of command or response for certain amount of time.
> In auto suspended state, it becomes mandatory to power on the
> hardware before requesting it to process a command. The fix
> ensures the hardware is powered on during stop streaming.
> ---
>  drivers/media/platform/qcom/venus/vdec.c | 2 ++
>  1 file changed, 2 insertions(+)

Acked-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>

> 
> diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
> index 91da3f5..4ac1132 100644
> --- a/drivers/media/platform/qcom/venus/vdec.c
> +++ b/drivers/media/platform/qcom/venus/vdec.c
> @@ -1200,6 +1200,8 @@ static void vdec_stop_streaming(struct vb2_queue *q)
>  	struct venus_inst *inst = vb2_get_drv_priv(q);
>  	int ret = -EINVAL;
>  
> +	vdec_pm_get_put(inst);
> +
>  	mutex_lock(&inst->lock);
>  
>  	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)

-- 
regards,
Stan