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| author | Steve Longerbeam <slongerbeam@gmail.com> | 2018-09-29 15:54:12 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-10-04 15:36:38 -0400 |
| commit | c5040f1b71d95b948bb20500cb4634d8293c9c61 (patch) | |
| tree | d02936d94e5de23b12538d87241bdd1ac1689cee /drivers/staging/media/imx/imx6-mipi-csi2.c | |
| parent | c893500a16baf51f17327a4af9a4ab686251d8ac (diff) | |
| download | linux-0-day-c5040f1b71d95b948bb20500cb4634d8293c9c61.tar.gz linux-0-day-c5040f1b71d95b948bb20500cb4634d8293c9c61.tar.xz | |
media: imx: mipi csi-2: Register a subdev notifier
Parse neighbor remote devices on the MIPI CSI-2 input port, add
them to a subdev notifier, and register the subdev notifier for the
MIPI CSI-2 receiver, by calling v4l2_async_register_fwnode_subdev().
csi2_parse_endpoints() is modified to be the parse_endpoint callback.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/staging/media/imx/imx6-mipi-csi2.c')
| -rw-r--r-- | drivers/staging/media/imx/imx6-mipi-csi2.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/drivers/staging/media/imx/imx6-mipi-csi2.c b/drivers/staging/media/imx/imx6-mipi-csi2.c index 7b457a4b7df56..d60a52cfc69c9 100644 --- a/drivers/staging/media/imx/imx6-mipi-csi2.c +++ b/drivers/staging/media/imx/imx6-mipi-csi2.c @@ -551,35 +551,34 @@ static const struct v4l2_subdev_internal_ops csi2_internal_ops = { .registered = csi2_registered, }; -static int csi2_parse_endpoints(struct csi2_dev *csi2) +static int csi2_parse_endpoint(struct device *dev, + struct v4l2_fwnode_endpoint *vep, + struct v4l2_async_subdev *asd) { - struct device_node *node = csi2->dev->of_node; - struct device_node *epnode; - struct v4l2_fwnode_endpoint ep; + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct csi2_dev *csi2 = sd_to_dev(sd); - epnode = of_graph_get_endpoint_by_regs(node, 0, -1); - if (!epnode) { - v4l2_err(&csi2->sd, "failed to get sink endpoint node\n"); + if (!fwnode_device_is_available(asd->match.fwnode)) { + v4l2_err(&csi2->sd, "remote is not available\n"); return -EINVAL; } - v4l2_fwnode_endpoint_parse(of_fwnode_handle(epnode), &ep); - of_node_put(epnode); - - if (ep.bus_type != V4L2_MBUS_CSI2) { + if (vep->bus_type != V4L2_MBUS_CSI2) { v4l2_err(&csi2->sd, "invalid bus type, must be MIPI CSI2\n"); return -EINVAL; } - csi2->bus = ep.bus.mipi_csi2; + csi2->bus = vep->bus.mipi_csi2; dev_dbg(csi2->dev, "data lanes: %d\n", csi2->bus.num_data_lanes); dev_dbg(csi2->dev, "flags: 0x%08x\n", csi2->bus.flags); + return 0; } static int csi2_probe(struct platform_device *pdev) { + unsigned int sink_port = 0; struct csi2_dev *csi2; struct resource *res; int ret; @@ -601,10 +600,6 @@ static int csi2_probe(struct platform_device *pdev) csi2->sd.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE; csi2->sd.grp_id = IMX_MEDIA_GRP_ID_CSI2; - ret = csi2_parse_endpoints(csi2); - if (ret) - return ret; - csi2->pllref_clk = devm_clk_get(&pdev->dev, "ref"); if (IS_ERR(csi2->pllref_clk)) { v4l2_err(&csi2->sd, "failed to get pll reference clock\n"); @@ -654,7 +649,9 @@ static int csi2_probe(struct platform_device *pdev) platform_set_drvdata(pdev, &csi2->sd); - ret = v4l2_async_register_subdev(&csi2->sd); + ret = v4l2_async_register_fwnode_subdev( + &csi2->sd, sizeof(struct v4l2_async_subdev), + &sink_port, 1, csi2_parse_endpoint); if (ret) goto dphy_off; |