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Thu, 22 Feb 2024 05:33:22 -0600 Received: from localhost (jluthra.dhcp.ti.com [172.24.227.217]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 41MBXLtH091250; Thu, 22 Feb 2024 05:33:22 -0600 From: Jai Luthra Date: Thu, 22 Feb 2024 17:01:25 +0530 Subject: [PATCH RFC 09/21] SQUASH: media: ti: j721e-csi2rx: Fix link validation for multi-stream Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20240222-multistream-v1-9-1837ed916eeb@ti.com> References: <20240222-multistream-v1-0-1837ed916eeb@ti.com> In-Reply-To: <20240222-multistream-v1-0-1837ed916eeb@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 , Jayshri Pawar , Jai Luthra X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791598787604803108 X-GMAIL-MSGID: 1791598787604803108 With the new architecture, multiple video nodes are connected to output pads of the ticsi2rx subdev. Fix the link validation for such scenarios. Signed-off-by: Jai Luthra --- .../media/platform/ti/j721e-csi2rx/j721e-csi2rx.c | 31 ++++++++++++++-------- 1 file changed, 20 insertions(+), 11 deletions(-) diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c index 42eb1bff21e2..1443338f4134 100644 --- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c +++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c @@ -1133,45 +1133,54 @@ static int ti_csi2rx_link_validate(struct media_link *link) struct v4l2_subdev_format source_fmt = { .which = V4L2_SUBDEV_FORMAT_ACTIVE, .pad = link->source->index, + .stream = 0, }; + struct v4l2_subdev_state *state; const struct ti_csi2rx_fmt *ti_fmt; int ret; - ret = v4l2_subdev_call_state_active(&csi->subdev, pad, - get_fmt, &source_fmt); - if (ret) - return ret; + state = v4l2_subdev_lock_and_get_active_state(&csi->subdev); + ret = v4l2_subdev_call(&csi->subdev, pad, get_fmt, state, &source_fmt); + v4l2_subdev_unlock_state(state); + + if (ret) { + dev_dbg(csi->dev, + "Skipping validation as no format present on \"%s\":%u:0\n", + link->source->entity->name, link->source->index); + return 0; + } if (source_fmt.format.width != csi_fmt->width) { - dev_dbg(csi->dev, "Width does not match (source %u, sink %u)\n", + dev_err(csi->dev, "Width does not match (source %u, sink %u)\n", source_fmt.format.width, csi_fmt->width); return -EPIPE; } if (source_fmt.format.height != csi_fmt->height) { - dev_dbg(csi->dev, "Height does not match (source %u, sink %u)\n", + dev_err(csi->dev, "Height does not match (source %u, sink %u)\n", source_fmt.format.height, csi_fmt->height); return -EPIPE; } if (source_fmt.format.field != csi_fmt->field && csi_fmt->field != V4L2_FIELD_NONE) { - dev_dbg(csi->dev, "Field does not match (source %u, sink %u)\n", + dev_err(csi->dev, "Field does not match (source %u, sink %u)\n", source_fmt.format.field, csi_fmt->field); return -EPIPE; } ti_fmt = find_format_by_code(source_fmt.format.code); if (!ti_fmt) { - dev_dbg(csi->dev, "Media bus format 0x%x not supported\n", + dev_err(csi->dev, "Media bus format 0x%x not supported\n", source_fmt.format.code); return -EPIPE; } if (ti_fmt->fourcc != csi_fmt->pixelformat) { - dev_dbg(csi->dev, - "Cannot transform source fmt 0x%x to sink fmt 0x%x\n", - ti_fmt->fourcc, csi_fmt->pixelformat); + dev_err(csi->dev, + "Cannot transform \"%s\":%u format %p4cc to %p4cc\n", + link->source->entity->name, link->source->index, + &ti_fmt->fourcc, &csi_fmt->pixelformat); return -EPIPE; }