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

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Message-ID: <SJ0PR02MB88488C32CD93DB22C56FC008858C9@SJ0PR02MB8848.namprd02.prod.outlook.com>
Date:   Mon, 18 Jul 2022 10:31:36 +0000
From:   "Viswanath Boma (Temp)" <vboma@....qualcomm.com>
To:     "manivannan.sadhasivam@...aro.org" <manivannan.sadhasivam@...aro.org>,
        "Viswanath Boma (Temp) (QUIC)" <quic_vboma@...cinc.com>
CC:     "stanimir.varbanov@...aro.org" <stanimir.varbanov@...aro.org>,
        Andy Gross <agross@...nel.org>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "linux-kernel@...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



-----Original Message-----
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org> 
Sent: Tuesday, July 12, 2022 6:05 PM
To: Viswanath Boma (Temp) (QUIC) <quic_vboma@...cinc.com>
Cc: video.upstream.external <video.upstream.external@....qualcomm.com>; stanimir.varbanov@...aro.org; Andy Gross <agross@...nel.org>; 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

WARNING: This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.

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.
[vboma]
Will ensure with next patch set

> 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
[vboma]
Will ensure with next patch set
> ---
>  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
>