From nobody Thu Dec 18 20:33:51 2025 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 AD095352FAD; Tue, 16 Dec 2025 15:19:27 +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=1765898369; cv=none; b=pq66VvkiEWZPy+MDn0cV+CpoXCSZo1B8Tb+pmCefnpQfzK9c04amnuZU6679hqm+HuOyVwkkH5Xlm/IKCAPdrzJ3d3d3h/HS9wC78TdIIo0N12MFg7ikmTkfq5Xi8IIl/P+JG6JyR+myFv3dp5OsbWYsC/CGT0rP/cL1YHXhOW4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765898369; c=relaxed/simple; bh=dhK3uD+Ut+8LJFD1lnLJkekf7X3cpMpIVzZnITUPmuc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=MGJDMcmgyUKwEhtNRgBXV0DZAQ+qoPFJvlpOnjYkVjr1mArSPaJrTiMVdFlO5rbdVHuBkkadHEtkogcFgJ/nT4ItYibTKI7S1IbUilXABOmv8MUsB2CjU6cG5UrIbo3VOKLwt3juzABobTo3i5uMw8/QMgY8l+xw1gjXW2/+hLU= 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=jAIvc0ID; 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="jAIvc0ID" 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 92EAB594; Tue, 16 Dec 2025 16:19:07 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1765898348; bh=dhK3uD+Ut+8LJFD1lnLJkekf7X3cpMpIVzZnITUPmuc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jAIvc0IDr3Mfyv2X7rdmDZUw2ln3/D2Yqr4nFZQHb9wS9oDMReTm0Nhj0FIh8+GCM V0irtkeN55O3HR/rSA/MN3z8kcF9QphRd4Kkmm/mvQEFfODWE4GP7qJA5BtuNsPQY8 UycidPQPE6OgGClevBWDA1yt/r4zUeKu06+n28uM= From: Tomi Valkeinen Date: Tue, 16 Dec 2025 17:18:28 +0200 Subject: [PATCH v4 11/15] 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: <20251216-rcar-streams-v4-11-f28b4831cc67@ideasonboard.com> References: <20251216-rcar-streams-v4-0-f28b4831cc67@ideasonboard.com> In-Reply-To: <20251216-rcar-streams-v4-0-f28b4831cc67@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/ZANAwAIAfo9qoy8lh71AcsmYgBpQXhmNVeW0hlujPsjS4BTqkBrTm+M2BMWWfUz3 /owcFNl71aJAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCaUF4ZgAKCRD6PaqMvJYe 9T87D/9dqArUf0CC4gfOtNWsTEgsBaai1JTpwPzdFZuQwOvxP1YeaEy+U4iVdbOHoNUCzXRIX9d qs1yu8/7tg7vI0j/6dFeIApQ2C1CjO9LVUXmVsPLdnjR/KNi9im82RnFfd4JYOtUJfBqxldobmQ J5VSKGTbeXSHf71sx2wx4pwyLhz2dQwQhEMlmcF68haAX6iMgq60jXG867bctBrv9jWuI5DfCPg Hh2JvQbjM4VVlDEtegTbTeYiRIVx8hrJTY/u1Fw9G4wIC/9tM2hDiRLG7hMYVlJ/9N9Bdw6xIEU 9gqgM8bJnUfTeTsdranmjtqrP+xaUBoYHGPIGaRjWEg6vB71RMm2kytb3xRilCpgXXde6ql5gTy XQYnH7aqFRTZVGwbMNSGf7fAbwDLj1oRZZMd95OLXY/OdOA0icRy9h20auW1FkvkFwgWyE5Wbq2 GqSmKlOuRJZgpocHdmbqDbiSCG9qHiLPeZmThoYwdiuxZtzs8FC33CcT1NCisT4hKS9c0s0GA/H ltwZ8phjVOYG+6YwFw2m0Fa2EdmKHgHUua+HIXHCqOTe7ZVePCad1lCDxxgAbH8PRDf2pqVSTMh BKoIPHMYxztH57VBoIikn5F3mefJp39Dg9BQwBMVYs2NtWBM0kmxtQxdiCeGKvg4qcXyOPoLbEm xhUN84EF3/osEzQ== 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