linux-kernel - Re: [PATCH 1/7] venus : Add default values for the control V4L2_CID_COLORIMETRY_HDR10_MASTERING

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Message-ID: <20220712123523.GB21746@workstation>
Date:   Tue, 12 Jul 2022 18:05:23 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Viswanath Boma <quic_vboma@...cinc.com>
Cc:     video.upstream.external@....qualcomm.com,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] venus : Add default values for the control
 V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY

On Tue, Jul 12, 2022 at 05:53:41PM +0530, Viswanath Boma wrote:
> From: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> 
>  V4l2 encoder compliance expecting default values of colormetry for the control.
> 
> Change-Id: I1db0d4940b54e033d646ce39d60dc488afba8d58

What does this represent here? I'm pretty sure it is meaningless to the
upstream kernel, so please get rid of it.

> Signed-off-by: Viswanath Boma <quic_vboma@...cinc.com>

Since Stan is the original author of this and following patches, there
should be a s-o-b tag from him. After that you should add yours
indicating that you are carrying the patches from Stan.

Also, please add a cover letter stating the purpose of this series, how
it is tested, and with any other relevant information.

Thanks,
Mani

> ---
>  drivers/media/platform/qcom/venus/venc_ctrls.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c b/drivers/media/platform/qcom/venus/venc_ctrls.c
> index ea5805e71c143..37ba7d97f99b2 100644
> --- a/drivers/media/platform/qcom/venus/venc_ctrls.c
> +++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
> @@ -352,6 +352,8 @@ static const struct v4l2_ctrl_ops venc_ctrl_ops = {
>  int venc_ctrl_init(struct venus_inst *inst)
>  {
>  	int ret;
> +	struct v4l2_ctrl_hdr10_mastering_display p_hdr10_mastering = { {34000, 13250, 7500 },
> +	{ 16000, 34500, 3000 }, 15635,	16450, 10000000, 500 };
>  
>  	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 58);
>  	if (ret)
> @@ -580,7 +582,7 @@ int venc_ctrl_init(struct venus_inst *inst)
>  
>  	v4l2_ctrl_new_std_compound(&inst->ctrl_handler, &venc_ctrl_ops,
>  				   V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY,
> -				   v4l2_ctrl_ptr_create(NULL));
> +				   v4l2_ctrl_ptr_create((void *)&p_hdr10_mastering));
>  
>  	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
>  			  V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD, 0,
> -- 
> 2.17.1
>