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Thu, 27 Jun 2024 08:10:36 -0500 From: Jai Luthra Date: Thu, 27 Jun 2024 18:40:03 +0530 Subject: [PATCH v2 08/13] media: cadence: csi2rx: add get_frame_desc wrapper Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20240627-multistream-v2-8-6ae96c54c1c3@ti.com> References: <20240627-multistream-v2-0-6ae96c54c1c3@ti.com> In-Reply-To: <20240627-multistream-v2-0-6ae96c54c1c3@ti.com> To: Tomi Valkeinen , Mauro Carvalho Chehab , Sakari Ailus , Hans Verkuil , Vaishnav Achath , Maxime Ripard , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , Vignesh Raghavendra , Aradhya Bhatia , Devarsh Thakkar , Changhuang Liang , Jack Zhu , Julien Massot , Laurent Pinchart , Jai Luthra X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=2073; i=j-luthra@ti.com; h=from:subject:message-id; bh=JtptYl9pWQyib/AWqwA187Qcdcnrfn7aG9FAK3/vGqA=; b=owEBbQKS/ZANAwAIAUPekfkkmnFFAcsmYgBmfWS527ImTZLiFEOQ5Xg8bvJcnev8SegdmIezz 8SgaEGPt16JAjMEAAEIAB0WIQRN4NgY5dV16NRar8VD3pH5JJpxRQUCZn1kuQAKCRBD3pH5JJpx RSigEACd6lCD+0c0Z5dyQqGiA+nfMwiSLo02Hjiw9r5Tu9glT3XdX19bkkLuTtCz4bmPzDA1TT9 7NO0JCk9N6ZIhOloJQQXadcooxoYUOMY5GPAizVWDA9kOvcgNjTuocb3Lr05SHfxqsNSocft2E0 hb2eTCeC5CcVAfC5LG8RCODjiVzYswxwvR5V4L9lkSDy24hoVPoRl01sQVle9rFSUWn9Nzt0lXi chhcR+zCDO/0im0iOnzdoV/P5ntRuPq5+q4N3l+yjUMkaj5qPXA8cAdeXzmyRPFLEPh7zKOwOfv e5WHZz9N0IlziAf6OKFx9+bsjpsVUw8qA+95m19fI85g9tlGiJOPPnP1oHGhJM1QiM+1u5Syth/ kRpr3lBaDv48ecJ6Ly/kvLIILKy7Tou9vCu+jL/u+bJ++jU42bVok/ASI5K9ZhxgHIa5FyUfNwU hEBdUvHExU31W1fGJfLLZqH85JsROIb6+KOfLAA33BzpUOjlfJSCUU+LRXsV79QaLNXRa+z6Nyb H1LbM4TjTrG/SYNfg3qt6c/T94kl2iwFbpAhk6c6DHNQnv7tuQvstLmz0g5QCtugnk1vOQAO8Bd wDQ3YVcn4GOM+RVA16BnMcX8KByUfBHdZMrnXh7L5/zrBgBBWQ4T3j0yGCEJrdANMpa0B1frigL 7YeY12kJWOnbi+g== X-Developer-Key: i=j-luthra@ti.com; a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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 --- drivers/media/platform/cadence/cdns-csi2rx.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 751eadbe61ef..b6054d62c799 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -135,6 +135,21 @@ 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) { @@ -466,10 +481,19 @@ static int csi2rx_init_state(struct v4l2_subdev *subdev, return csi2rx_set_fmt(subdev, state, &format); } +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 = {