From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 584013090C5; Mon, 22 Sep 2025 12:50:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758545402; cv=none; b=eWCzQdO3SNkohQRVX8Vm68tEiR1Gj54790YLlZKHFk4mx/ZV7vHFcq/2p0J3qo7yo6DQ6NZY3rimUyT/kmZnBMCvGXj6z9p4qC/Z/b2p+6vM69Y0CVenrAhqpO/PERod8NgUs3A3vtyjWso7RoBSScVA40gBLaVQc/8Wqfg3yHI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758545402; c=relaxed/simple; bh=UqNJkhD4MlW/tv6RLb3etkdyBlvfbgd6/2Si8yvhVY0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=s9jkuYbSQl4xp9bpdC1GCZ4um+F3Z+2x0RaoRvd5gBcWaCFMo9cMcgwAOzkR1bebbLXW7p/A1KN7TshVbS/nxYXLcV+lYG1p7ApX5OmXSnbnrvtPDxuXec41y/sP9zug9I3AVDo35t6cmGzhq0wMMY0evSF0ck49dfKSiJW6NuE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=i/IsJlYd; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="i/IsJlYd" Received: from [192.168.88.20] (91-158-153-178.elisa-laajakaista.fi [91.158.153.178]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id AB320F89; Mon, 22 Sep 2025 14:48:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1758545315; bh=UqNJkhD4MlW/tv6RLb3etkdyBlvfbgd6/2Si8yvhVY0=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=i/IsJlYdtd4DW/kq1OamDpscD4/is9ua+tjt07xaLkLw6Ze25zePIvqoiKYFPDJV4 4eoYF0TAjFf4HPwStqBirNmC8GZY6wXkUZWvOhGKc0Z2ZyYx8qzGI2PuTZdGGutAWn fq54DRBCH7alx3kFyxWuKdfzo0S5yrzBoKMBO6D0= Message-ID: Date: Mon, 22 Sep 2025 15:49:53 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 08/16] media: cadence: csi2rx: add get_frame_desc wrapper To: Rishikesh Donadkar , jai.luthra@linux.dev, laurent.pinchart@ideasonboard.com, mripard@kernel.org Cc: y-abhilashchandra@ti.com, devarsht@ti.com, s-jain1@ti.com, vigneshr@ti.com, mchehab@kernel.org, robh@kernel.org, krzk+dt@kernel.org, p.zabel@pengutronix.de, conor+dt@kernel.org, sakari.ailus@linux.intel.com, hverkuil-cisco@xs4all.nl, jai.luthra@ideasonboard.com, changhuang.liang@starfivetech.com, jack.zhu@starfivetech.com, sjoerd@collabora.com, hverkuil+cisco@kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org References: <20250911102832.1583440-1-r-donadkar@ti.com> <20250911102832.1583440-9-r-donadkar@ti.com> Content-Language: en-US From: Tomi Valkeinen Autocrypt: addr=tomi.valkeinen@ideasonboard.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, On 11/09/2025 13:28, Rishikesh Donadkar wrote: > From: Pratyush Yadav > > J721E wrapper CSI2RX driver needs to get the frame descriptor from the > source to find out info about virtual channel. This driver itself does > not touch the routing or virtual channels in any way. So simply pass the > descriptor through from the source. > > Signed-off-by: Pratyush Yadav > Signed-off-by: Jai Luthra > Reviewed-by: Jacopo Mondi > Reviewed-by: Changhuang Liang > Reviewed-by: Laurent Pinchart > Reviewed-by: Yemike Abhilash Chandra > Signed-off-by: Rishikesh Donadkar > --- > drivers/media/platform/cadence/cdns-csi2rx.c | 24 ++++++++++++++++++++ > 1 file changed, 24 insertions(+) Reviewed-by: Tomi Valkeinen Tomi > > diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c > index 828b4ba4301d..3c99de56c095 100644 > --- a/drivers/media/platform/cadence/cdns-csi2rx.c > +++ b/drivers/media/platform/cadence/cdns-csi2rx.c > @@ -235,6 +235,21 @@ static const struct csi2rx_fmt *csi2rx_get_fmt_by_code(u32 code) > return NULL; > } > > +static int csi2rx_get_frame_desc_from_source(struct csi2rx_priv *csi2rx, > + struct v4l2_mbus_frame_desc *fd) > +{ > + struct media_pad *remote_pad; > + > + remote_pad = media_entity_remote_source_pad_unique(&csi2rx->subdev.entity); > + if (!remote_pad) { > + dev_err(csi2rx->dev, "No remote pad found for sink\n"); > + return -ENODEV; > + } > + > + return v4l2_subdev_call(csi2rx->source_subdev, pad, get_frame_desc, > + remote_pad->index, fd); > +} > + > static inline > struct csi2rx_priv *v4l2_subdev_to_csi2rx(struct v4l2_subdev *subdev) > { > @@ -607,10 +622,19 @@ int cdns_csi2rx_negotiate_ppc(struct v4l2_subdev *subdev, unsigned int pad, > } > EXPORT_SYMBOL_GPL_FOR_MODULES(cdns_csi2rx_negotiate_ppc, "j721e-csi2rx"); > > +static int csi2rx_get_frame_desc(struct v4l2_subdev *subdev, unsigned int pad, > + struct v4l2_mbus_frame_desc *fd) > +{ > + struct csi2rx_priv *csi2rx = v4l2_subdev_to_csi2rx(subdev); > + > + return csi2rx_get_frame_desc_from_source(csi2rx, fd); > +} > + > static const struct v4l2_subdev_pad_ops csi2rx_pad_ops = { > .enum_mbus_code = csi2rx_enum_mbus_code, > .get_fmt = v4l2_subdev_get_fmt, > .set_fmt = csi2rx_set_fmt, > + .get_frame_desc = csi2rx_get_frame_desc, > }; > > static const struct v4l2_subdev_video_ops csi2rx_video_ops = {