linux-kernel - [PATCH v7 08/13] media: cadence: csi2rx: Populate subdev devnode

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Date:   Tue, 14 Mar 2023 17:25:11 +0530
From:   Vaishnav Achath <vaishnav.a@...com>
To:     <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <mripard@...nel.org>, <mchehab@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <laurent.pinchart@...asonboard.com>,
        <sakari.ailus@...ux.intel.com>, <tomi.valkeinen@...asonboard.com>
CC:     <linux-kernel@...r.kernel.org>, <bparrot@...com>,
        <niklas.soderlund+renesas@...natech.se>, <j-luthra@...com>,
        <devarsht@...com>, <praneeth@...com>, <u-kumar1@...com>,
        <vigneshr@...com>, <nm@...com>, <martyn.welch@...labora.com>,
        <vaishnav.a@...com>
Subject: [PATCH v7 08/13] media: cadence: csi2rx: Populate subdev devnode

From: Pratyush Yadav <p.yadav@...com>

The devnode can be used by media-ctl and other userspace tools to
perform configurations on the subdev. Without it, media-ctl returns
ENOENT when setting format on the sensor subdev.

Signed-off-by: Pratyush Yadav <p.yadav@...com>
Signed-off-by: Vaishnav Achath <vaishnav.a@...com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
---

(no changes since v5)

Changes in v5:
- Add Laurent's R-by.

Changes in v2:
- New in v2.

 drivers/media/platform/cadence/cdns-csi2rx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
index f8ce9360bfb0..639ade97b998 100644
--- a/drivers/media/platform/cadence/cdns-csi2rx.c
+++ b/drivers/media/platform/cadence/cdns-csi2rx.c
@@ -676,6 +676,7 @@ static int csi2rx_probe(struct platform_device *pdev)
 	csi2rx->pads[CSI2RX_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
 	for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++)
 		csi2rx->pads[i].flags = MEDIA_PAD_FL_SOURCE;
+	csi2rx->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
 	ret = media_entity_pads_init(&csi2rx->subdev.entity, CSI2RX_PAD_MAX,
 				     csi2rx->pads);
-- 
2.17.1