From: Steve Longerbeam <slongerbeam@gmail.com>
To: linux-media@vger.kernel.org
Cc: "open list:STAGING SUBSYSTEM" <devel@driverdev.osuosl.org>,
Fabio Estevam <festevam@gmail.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
open list <linux-kernel@vger.kernel.org>,
NXP Linux Team <linux-imx@nxp.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Steve Longerbeam <slongerbeam@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>
Subject: [RESEND PATCH v3 04/17] media: imx: mipi csi-2: Implement get_fwnode_pad op
Date: Sat, 15 Feb 2020 11:41:23 -0800 [thread overview]
Message-ID: <20200215194136.10131-5-slongerbeam@gmail.com> (raw)
In-Reply-To: <20200215194136.10131-1-slongerbeam@gmail.com>
Implement get_fwnode_pad operation. If the endpoint is owned by the MIPI
CSI-2 receiver, return the endpoint's port number. The MIPI CSI-2 receiver
maps port numbers and pad indexes 1:1.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
---
drivers/staging/media/imx/imx6-mipi-csi2.c | 28 ++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/staging/media/imx/imx6-mipi-csi2.c b/drivers/staging/media/imx/imx6-mipi-csi2.c
index c1d1afeea53a..e27a342751fc 100644
--- a/drivers/staging/media/imx/imx6-mipi-csi2.c
+++ b/drivers/staging/media/imx/imx6-mipi-csi2.c
@@ -507,9 +507,37 @@ static int csi2_registered(struct v4l2_subdev *sd)
640, 480, 0, V4L2_FIELD_NONE, NULL);
}
+static int csi2_get_fwnode_pad(struct media_entity *entity,
+ struct fwnode_endpoint *endpoint)
+{
+ struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
+ struct csi2_dev *csi2 = sd_to_dev(sd);
+ struct fwnode_handle *csi2_ep;
+
+ /*
+ * If the endpoint is one of ours, return the endpoint's port
+ * number. This device maps port numbers and pad indexes 1:1.
+ */
+ fwnode_graph_for_each_endpoint(dev_fwnode(csi2->dev), csi2_ep) {
+ if (endpoint->local_fwnode == csi2_ep) {
+ struct fwnode_endpoint fwep;
+ int ret;
+
+ ret = fwnode_graph_parse_endpoint(csi2_ep, &fwep);
+
+ fwnode_handle_put(csi2_ep);
+
+ return ret ? ret : fwep.port;
+ }
+ }
+
+ return -ENXIO;
+}
+
static const struct media_entity_operations csi2_entity_ops = {
.link_setup = csi2_link_setup,
.link_validate = v4l2_subdev_link_validate,
+ .get_fwnode_pad = csi2_get_fwnode_pad,
};
static const struct v4l2_subdev_video_ops csi2_video_ops = {
--
2.17.1
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next prev parent reply other threads:[~2020-02-15 19:42 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200215194136.10131-1-slongerbeam@gmail.com>
2020-02-15 19:41 ` [RESEND PATCH v3 02/17] media: v4l2-fwnode: Pass notifier to v4l2_async_register_fwnode_subdev() Steve Longerbeam
2020-02-25 15:07 ` Sakari Ailus
2020-02-26 23:50 ` Steve Longerbeam
2020-02-27 7:50 ` Sakari Ailus
2020-02-28 18:16 ` Steve Longerbeam
2020-02-28 22:27 ` Sakari Ailus
2020-02-15 19:41 ` [RESEND PATCH v3 03/17] media: imx: csi: Implement get_fwnode_pad op Steve Longerbeam
2020-02-15 19:41 ` Steve Longerbeam [this message]
2020-02-15 19:41 ` [RESEND PATCH v3 06/17] media: imx: Add imx_media_create_fwnode_pad_link() Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 08/17] media: imx: mipi csi-2: Create media links in bound notifier Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 09/17] media: imx7-mipi-csis: " Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 10/17] media: imx7-media-csi: " Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 11/17] media: imx: csi: Embed notifier in struct csi_priv Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 12/17] media: imx: csi: Add missing notifier unregister/cleanup Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 13/17] media: imx: csi: Create media links in bound notifier Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 14/17] media: imx: csi: Lookup upstream endpoint with imx_media_get_pad_fwnode Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 15/17] media: imx: Create missing links from CSI-2 receiver Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 16/17] media: imx: silence a couple debug messages Steve Longerbeam
2020-02-15 19:41 ` [RESEND PATCH v3 17/17] media: imx: TODO: Remove media link creation todos Steve Longerbeam
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