Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Sat, 24 Dec 2022 14:03:25 -0300
From:   Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
To:     Benjamin Gaignard <benjamin.gaignard@collabora.com>
Cc:     Nicolas Dufresne <nicolas.dufresne@collabora.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>, kernel@collabora.com,
        Robert Mader <robert.mader@collabora.com>,
        linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] hantro: Fix JPEG encoder ENUM_FRMSIZE on RK3399
Message-ID: <Y6cw3dU8Ku2+aL9y@eze-laptop>
References: <20221223181647.720918-1-nicolas.dufresne@collabora.com>
 <8d13ffb9-74cb-00f9-072a-0614e341e1ef@collabora.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <8d13ffb9-74cb-00f9-072a-0614e341e1ef@collabora.com>
Precedence: bulk

On Sat, Dec 24, 2022 at 09:03:59AM +0100, Benjamin Gaignard wrote:
> 
> Le 23/12/2022 ? 19:16, Nicolas Dufresne a ?crit?:
> > Since 79c987de8b354, enumerating framesize on format set with "MODE_NONE"
> > (any raw formats) is reporting an invalid frmsize.
> > 
> >    Size: Stepwise 0x0 - 0x0 with step 0/0
> > 
> > Before this change, the driver would return EINVAL, which is also invalid but
> > worked in GStreamer. The original intent was not to implement it, hence the
> > -ENOTTY return in this change. While drivers should implement ENUM_FRMSIZE for
> > all formats and queues, this change is limited in scope to fix the regression.
> > 
> > This fixes taking picture in Gnome Cheese software, or any software using
> > GSteamer to encode JPEG with hardware acceleration.
> > 
> > Fixes: 79c987de8b354 ("media: hantro: Use post processor scaling capacities")
> > Reported-by: Robert Mader <robert.mader@collabora.com>
> > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> 
> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> 

Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

Thanks,
Ezequiel

> > ---
> >   drivers/media/platform/verisilicon/hantro_v4l2.c | 7 +++++--
> >   1 file changed, 5 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
> > index 2c7a805289e7b..30e650edaea8a 100644
> > --- a/drivers/media/platform/verisilicon/hantro_v4l2.c
> > +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
> > @@ -161,8 +161,11 @@ static int vidioc_enum_framesizes(struct file *file, void *priv,
> >   	}
> >   	/* For non-coded formats check if postprocessing scaling is possible */
> > -	if (fmt->codec_mode == HANTRO_MODE_NONE && hantro_needs_postproc(ctx, fmt)) {
> > -		return hanto_postproc_enum_framesizes(ctx, fsize);
> > +	if (fmt->codec_mode == HANTRO_MODE_NONE) {
> > +		if (hantro_needs_postproc(ctx, fmt))
> > +			return hanto_postproc_enum_framesizes(ctx, fsize);
> > +		else
> > +			return -ENOTTY;
> >   	} else if (fsize->index != 0) {
> >   		vpu_debug(0, "invalid frame size index (expected 0, got %d)\n",
> >   			  fsize->index);