linux-kernel - Re: [PATCH] media: staging/imx: fill vb2_v4l2

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Date:   Tue, 13 Mar 2018 23:24:49 +0100
From:   Peter Seiderer <ps.report@....net>
To:     Steve Longerbeam <slongerbeam@...il.com>
Cc:     linux-media@...r.kernel.org,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: staging/imx: fill vb2_v4l2_buffer sequence entry

Hello Steve,

On Tue, 13 Mar 2018 15:03:07 -0700, Steve Longerbeam <slongerbeam@...il.com> wrote:

> Hi Peter,
> 
> Thanks for the patch.
> 
> This needs to be done in imx-ic-prpencvf.c as well, see
> prp_vb2_buf_done().

Ahh, I see...., would you prefer an follow up patch or
an v2 patch doing the changes on mx-media-csi.c and
imx-ic-prpencvf.c at once?

Regards,
Peter

> 
> Steve
> 
> 
> On 03/13/2018 01:00 PM, Peter Seiderer wrote:
> > Signed-off-by: Peter Seiderer <ps.report@....net>
> > ---
> >   drivers/staging/media/imx/imx-media-csi.c | 5 +++++
> >   1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
> > index 5a195f80a24d..3a6a645b9dce 100644
> > --- a/drivers/staging/media/imx/imx-media-csi.c
> > +++ b/drivers/staging/media/imx/imx-media-csi.c
> > @@ -111,6 +111,7 @@ struct csi_priv {
> >   	struct v4l2_ctrl_handler ctrl_hdlr;
> >   
> >   	int stream_count; /* streaming counter */
> > +	__u32 frame_sequence; /* frame sequence counter */
> >   	bool last_eof;   /* waiting for last EOF at stream off */
> >   	bool nfb4eof;    /* NFB4EOF encountered during streaming */
> >   	struct completion last_eof_comp;
> > @@ -234,8 +235,11 @@ static void csi_vb2_buf_done(struct csi_priv *priv)
> >   	struct vb2_buffer *vb;
> >   	dma_addr_t phys;
> >   
> > +	priv->frame_sequence++;
> > +
> >   	done = priv->active_vb2_buf[priv->ipu_buf_num];
> >   	if (done) {
> > +		done->vbuf.sequence = priv->frame_sequence;
> >   		vb = &done->vbuf.vb2_buf;
> >   		vb->timestamp = ktime_get_ns();
> >   		vb2_buffer_done(vb, priv->nfb4eof ?
> > @@ -543,6 +547,7 @@ static int csi_idmac_start(struct csi_priv *priv)
> >   
> >   	/* init EOF completion waitq */
> >   	init_completion(&priv->last_eof_comp);
> > +	priv->frame_sequence = 0;
> >   	priv->last_eof = false;
> >   	priv->nfb4eof = false;
> >     
>