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Thu, 20 Feb 2025 06:17:56 -0800 (PST) From: Cosmin Tanislav To: Cc: Dave Stevenson , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Sakari Ailus , Laurent Pinchart , linux-media@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/6] media: i2c: imx219: Report streams using frame descriptors Date: Thu, 20 Feb 2025 16:17:27 +0200 Message-ID: <20250220141739.228714-6-demonsingur@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250220141739.228714-1-demonsingur@gmail.com> References: <20250220141739.228714-1-demonsingur@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Laurent Pinchart Implement the .get_frame_desc() subdev operation to report information about streams to the connected CSI-2 receiver. This is required to let the CSI-2 receiver driver know about virtual channels and data types for each stream. Signed-off-by: Laurent Pinchart --- drivers/media/i2c/imx219.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index ad1965a91ae3c..4c4ebe54f191b 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -23,6 +23,7 @@ #include #include =20 +#include #include #include #include @@ -990,6 +991,28 @@ static int imx219_init_state(struct v4l2_subdev *sd, return 0; } =20 +static int imx219_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd) +{ + struct v4l2_subdev_state *state; + u32 code; + + state =3D v4l2_subdev_lock_and_get_active_state(sd); + code =3D v4l2_subdev_state_get_format(state, 0)->code; + v4l2_subdev_unlock_state(state); + + fd->type =3D V4L2_MBUS_FRAME_DESC_TYPE_CSI2; + fd->num_entries =3D 1; + + fd->entry[0].pixelcode =3D code; + fd->entry[0].stream =3D 0; + fd->entry[0].bus.csi2.vc =3D 0; + fd->entry[0].bus.csi2.dt =3D imx219_get_format_bpp(code) =3D=3D 8 + ? MIPI_CSI2_DT_RAW8 : MIPI_CSI2_DT_RAW10; + + return 0; +} + static const struct v4l2_subdev_video_ops imx219_video_ops =3D { .s_stream =3D imx219_set_stream, }; @@ -1000,6 +1023,7 @@ static const struct v4l2_subdev_pad_ops imx219_pad_op= s =3D { .set_fmt =3D imx219_set_pad_format, .get_selection =3D imx219_get_selection, .enum_frame_size =3D imx219_enum_frame_size, + .get_frame_desc =3D imx219_get_frame_desc, }; =20 static const struct v4l2_subdev_ops imx219_subdev_ops =3D { --=20 2.48.1