From nobody Tue Apr 7 23:43:01 2026 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 4A746317161; Wed, 11 Mar 2026 13:54:15 +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=1773237259; cv=none; b=qj6GYcfOO5BzFDb4dBqeDmWGM2k3AbtgHmUbzBfTgcOnkzh2YppnKsrb3nPz/30IBV3X4Pbd4CoG5H9/do3WfrZN+hmw5dqXqoSaaC9S1FW3JscCPiGqzntlEzPT1IF4f+70h5XnEBlMi+EZ8KBnWtOopBGcFmSGVmxKm2h5z9g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773237259; c=relaxed/simple; bh=dhK3uD+Ut+8LJFD1lnLJkekf7X3cpMpIVzZnITUPmuc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=AYK2VIrfDE2XeNSOECCUEGCDOFwDFGqSnAAxgzC69AxlBbxbGcSXiGfEDBfftm3BLE9muAoEngsOMgGJBSi/IjAQlp4cmWGPlBFf460wyNDOERY3Ql+dn0JZa64qFtEWjxM8tJEZoAnINhr2H1z30Cv47yWmbbEqH+5ajxNGUec= 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=h5rdd3cz; 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="h5rdd3cz" Received: from [127.0.1.1] (91-158-153-178.elisa-laajakaista.fi [91.158.153.178]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 169C2128C; Wed, 11 Mar 2026 14:52:46 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1773237166; bh=dhK3uD+Ut+8LJFD1lnLJkekf7X3cpMpIVzZnITUPmuc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=h5rdd3czSzfAfHUs9WOj2UlsmnTWcy+tYdPad1DczEplw4etBF2YKJgHGD8eZU7I8 aQ/Wpl0uMbCob+8qxS0LTvJVtspavhXzn+iQdkVj42mpbLE6FpEF33I1Ui0MhSgqZe 5Z2K2DoboGeTHsGKiQILvyFnwbFJAATd7VnGpBFA= From: Tomi Valkeinen Date: Wed, 11 Mar 2026 15:53:19 +0200 Subject: [PATCH v5 06/10] media: rcar-csi2: Add .get_frame_desc op Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260311-rcar-streams-v5-6-3e6c957d7567@ideasonboard.com> References: <20260311-rcar-streams-v5-0-3e6c957d7567@ideasonboard.com> In-Reply-To: <20260311-rcar-streams-v5-0-3e6c957d7567@ideasonboard.com> To: =?utf-8?q?Niklas_S=C3=B6derlund?= , Mauro Carvalho Chehab , Sakari Ailus Cc: linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Niklas_S=C3=B6derlund?= , Mauro Carvalho Chehab , Laurent Pinchart , Jacopo Mondi , Tomi Valkeinen X-Mailer: b4 0.15-dev-c25d1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2753; i=tomi.valkeinen+renesas@ideasonboard.com; h=from:subject:message-id; bh=dhK3uD+Ut+8LJFD1lnLJkekf7X3cpMpIVzZnITUPmuc=; b=owEBbQKS/ZANAwAIAfo9qoy8lh71AcsmYgBpsXPrrTOLAUGOxedoQEbgj9MOVQz3DaNVjdbyb T/a2JxfMx2JAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCabFz6wAKCRD6PaqMvJYe 9frlEACcac8tUvrb4XW8UiiGPMsl4izz2BWsNP5i9RtUuhj3WEtGR18CX0Zcdt7fylxd7MpCl6R mKWuulRapCJbaO1Ds4KRwjmlDM/VLU0T8Dlhhv9m2DuQ6h2jWuZOLBaBaWXbCBQm/IGG3JOcchP jM7+CW10ARm4aUnETmmubVh33qDirAblK48BpHTs2kmKjIUmLr/gjzXytDeGY0EKR37XqNwQf8a jsW5bs4ztNumd2BVWwnnk+npneVcJNlv98daq6ZqR47rwvyjYH4Z+lhYvfXCjnYMD2ZwkSMDoor 0vulKRiF+B67HqY+ibI60qobbjxhhyNvCtmkpnnCqXVk5vuJvzvPeG0aiXYXCxyKKXhbqR1HtWr IYZJUc6NJlcl4EP0Rj74kDzSEVvD+vPy+75eQkr+cg4ujW3pm7TwlnFARzbr3keyFn7jgpTWioS w6dcb1js/AuHfI8ZWmpszrttWv1BjNtOqINLqwDJpLzuOtWcfKkhN5qpVI2NXh4QAnQYvvHZO/y wE8DpYgbxSu3wZWt/z9QYuqs/FmI4N8mkIZEADuUDt9ROfmjITffvbhlPPN+EaXAtveZhos86C5 4h1M//mzZT4+ztH72sGfCT2zlY9gRs2h7ggWlgb4MvTH1aIb4NQ6kGz7/uy/reFmQ+WjF1/JnGW Nkalc5qBHYvMclg== X-Developer-Key: i=tomi.valkeinen+renesas@ideasonboard.com; a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 Add v4l2_subdev_pad_ops.get_frame_desc() implementation. We also implement a fallback for the case where the upstream subdevice does not implement .get_frame_desc. It assumes a single stream with VC =3D 0 and DT based on the configured stream mbus format. Signed-off-by: Tomi Valkeinen --- drivers/media/platform/renesas/rcar-csi2.c | 70 ++++++++++++++++++++++++++= ++++ 1 file changed, 70 insertions(+) diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/pla= tform/renesas/rcar-csi2.c index ad62c95c8f9a..b8baf7c65e90 100644 --- a/drivers/media/platform/renesas/rcar-csi2.c +++ b/drivers/media/platform/renesas/rcar-csi2.c @@ -1935,12 +1935,82 @@ static int rcsi2_set_pad_format(struct v4l2_subdev = *sd, return 0; } =20 +static int rcsi2_get_frame_desc_fallback(struct v4l2_subdev *sd, + unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct v4l2_subdev_route *route; + const struct rcar_csi2_format *format; + struct v4l2_subdev_state *state; + struct v4l2_mbus_framefmt *fmt; + int ret =3D 0; + + state =3D v4l2_subdev_lock_and_get_active_state(sd); + + if (state->routing.num_routes !=3D 1) { + ret =3D -EINVAL; + goto out; + } + + route =3D &state->routing.routes[0]; + + if (route->source_pad !=3D pad) { + ret =3D -EINVAL; + goto out; + } + + fmt =3D v4l2_subdev_state_get_format(state, route->sink_pad, + route->sink_stream); + if (!fmt) { + ret =3D -EINVAL; + goto out; + } + + format =3D rcsi2_code_to_fmt(fmt->code); + if (!format) { + ret =3D -EINVAL; + goto out; + } + + fd->num_entries =3D 1; + fd->type =3D V4L2_MBUS_FRAME_DESC_TYPE_CSI2; + fd->entry[0].stream =3D route->source_stream; + fd->entry[0].pixelcode =3D fmt->code; + fd->entry[0].bus.csi2.vc =3D 0; + fd->entry[0].bus.csi2.dt =3D format->datatype; + +out: + v4l2_subdev_unlock_state(state); + + return ret; +} + +static int rcsi2_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct rcar_csi2 *priv =3D sd_to_csi2(sd); + int ret; + + if (WARN_ON(!priv->info->use_isp)) + return -ENOTTY; + + if (WARN_ON(pad !=3D RCAR_CSI2_SOURCE_VC0)) + return -EINVAL; + + ret =3D v4l2_subdev_get_frame_desc_passthrough(sd, pad, fd); + if (ret =3D=3D -ENOIOCTLCMD) + ret =3D rcsi2_get_frame_desc_fallback(sd, pad, fd); + return ret; +} + static const struct v4l2_subdev_pad_ops rcar_csi2_pad_ops =3D { .enable_streams =3D rcsi2_enable_streams, .disable_streams =3D rcsi2_disable_streams, =20 .set_fmt =3D rcsi2_set_pad_format, .get_fmt =3D v4l2_subdev_get_fmt, + + .get_frame_desc =3D rcsi2_get_frame_desc, }; =20 static const struct v4l2_subdev_ops rcar_csi2_subdev_ops =3D { --=20 2.43.0