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media: omap3isp: Use generic parser for parsing fwnode endpoints

Browse source 
Instead of using a custom driver implementation, use
v4l2_async_notifier_parse_fwnode_endpoints() to parse the fwnode endpoints
of the device.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sakari Ailus 2017-09-01 17:56:32 -04:00 committed by Mauro Carvalho Chehab
parent 9ca4653121
commit df4975663f
2 changed files with 40 additions and 86 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

121
drivers/media/platform/omap3isp/isp.c
View file

@ -2001,6 +2001,7 @@ static int isp_remove(struct platform_device *pdev)
__omap3isp_put(isp, false);
media_entity_enum_cleanup(&isp->crashed);
v4l2_async_notifier_cleanup(&isp->notifier);
return 0;
}
@ -2011,44 +2012,41 @@ enum isp_of_phy {
ISP_OF_PHY_CSIPHY2,
};
static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwnode,
struct isp_async_subdev *isd)
static int isp_fwnode_parse(struct device *dev,
struct v4l2_fwnode_endpoint *vep,
struct v4l2_async_subdev *asd)
{
struct isp_async_subdev *isd =
container_of(asd, struct isp_async_subdev, asd);
struct isp_bus_cfg *buscfg = &isd->bus;
struct v4l2_fwnode_endpoint vep;
unsigned int i;
int ret;
bool csi1 = false;
ret = v4l2_fwnode_endpoint_parse(fwnode, &vep);
if (ret)
return ret;
unsigned int i;
dev_dbg(dev, "parsing endpoint %pOF, interface %u\n",
to_of_node(fwnode), vep.base.port);
to_of_node(vep->base.local_fwnode), vep->base.port);
switch (vep.base.port) {
switch (vep->base.port) {
case ISP_OF_PHY_PARALLEL:
buscfg->interface = ISP_INTERFACE_PARALLEL;
buscfg->bus.parallel.data_lane_shift =
vep.bus.parallel.data_shift;
vep->bus.parallel.data_shift;
buscfg->bus.parallel.clk_pol =
!!(vep.bus.parallel.flags
!!(vep->bus.parallel.flags
& V4L2_MBUS_PCLK_SAMPLE_FALLING);
buscfg->bus.parallel.hs_pol =
!!(vep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
!!(vep->bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
buscfg->bus.parallel.vs_pol =
!!(vep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
!!(vep->bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
buscfg->bus.parallel.fld_pol =
!!(vep.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
!!(vep->bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
buscfg->bus.parallel.data_pol =
!!(vep.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
buscfg->bus.parallel.bt656 = vep.bus_type == V4L2_MBUS_BT656;
!!(vep->bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
buscfg->bus.parallel.bt656 = vep->bus_type == V4L2_MBUS_BT656;
break;
case ISP_OF_PHY_CSIPHY1:
case ISP_OF_PHY_CSIPHY2:
switch (vep.bus_type) {
switch (vep->bus_type) {
case V4L2_MBUS_CCP2:
case V4L2_MBUS_CSI1:
dev_dbg(dev, "CSI-1/CCP-2 configuration\n");
@ -2060,11 +2058,11 @@ static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwnode,
break;
default:
dev_err(dev, "unsupported bus type %u\n",
vep.bus_type);
vep->bus_type);
return -EINVAL;
}
switch (vep.base.port) {
switch (vep->base.port) {
case ISP_OF_PHY_CSIPHY1:
if (csi1)
buscfg->interface = ISP_INTERFACE_CCP2B_PHY1;
@ -2080,47 +2078,47 @@ static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwnode,
}
if (csi1) {
buscfg->bus.ccp2.lanecfg.clk.pos =
vep.bus.mipi_csi1.clock_lane;
vep->bus.mipi_csi1.clock_lane;
buscfg->bus.ccp2.lanecfg.clk.pol =
vep.bus.mipi_csi1.lane_polarity[0];
vep->bus.mipi_csi1.lane_polarity[0];
dev_dbg(dev, "clock lane polarity %u, pos %u\n",
buscfg->bus.ccp2.lanecfg.clk.pol,
buscfg->bus.ccp2.lanecfg.clk.pos);
buscfg->bus.ccp2.lanecfg.data[0].pos =
vep.bus.mipi_csi1.data_lane;
vep->bus.mipi_csi1.data_lane;
buscfg->bus.ccp2.lanecfg.data[0].pol =
vep.bus.mipi_csi1.lane_polarity[1];
vep->bus.mipi_csi1.lane_polarity[1];
dev_dbg(dev, "data lane polarity %u, pos %u\n",
buscfg->bus.ccp2.lanecfg.data[0].pol,
buscfg->bus.ccp2.lanecfg.data[0].pos);
buscfg->bus.ccp2.strobe_clk_pol =
vep.bus.mipi_csi1.clock_inv;
buscfg->bus.ccp2.phy_layer = vep.bus.mipi_csi1.strobe;
vep->bus.mipi_csi1.clock_inv;
buscfg->bus.ccp2.phy_layer = vep->bus.mipi_csi1.strobe;
buscfg->bus.ccp2.ccp2_mode =
vep.bus_type == V4L2_MBUS_CCP2;
vep->bus_type == V4L2_MBUS_CCP2;
buscfg->bus.ccp2.vp_clk_pol = 1;
buscfg->bus.ccp2.crc = 1;
} else {
buscfg->bus.csi2.lanecfg.clk.pos =
vep.bus.mipi_csi2.clock_lane;
vep->bus.mipi_csi2.clock_lane;
buscfg->bus.csi2.lanecfg.clk.pol =
vep.bus.mipi_csi2.lane_polarities[0];
vep->bus.mipi_csi2.lane_polarities[0];
dev_dbg(dev, "clock lane polarity %u, pos %u\n",
buscfg->bus.csi2.lanecfg.clk.pol,
buscfg->bus.csi2.lanecfg.clk.pos);
buscfg->bus.csi2.num_data_lanes =
vep.bus.mipi_csi2.num_data_lanes;
vep->bus.mipi_csi2.num_data_lanes;
for (i = 0; i < buscfg->bus.csi2.num_data_lanes; i++) {
buscfg->bus.csi2.lanecfg.data[i].pos =
vep.bus.mipi_csi2.data_lanes[i];
vep->bus.mipi_csi2.data_lanes[i];
buscfg->bus.csi2.lanecfg.data[i].pol =
vep.bus.mipi_csi2.lane_polarities[i + 1];
vep->bus.mipi_csi2.lane_polarities[i + 1];
dev_dbg(dev,
"data lane %u polarity %u, pos %u\n", i,
buscfg->bus.csi2.lanecfg.data[i].pol,
@ -2137,57 +2135,13 @@ static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwnode,
default:
dev_warn(dev, "%pOF: invalid interface %u\n",
to_of_node(fwnode), vep.base.port);
to_of_node(vep->base.local_fwnode), vep->base.port);
return -EINVAL;
}
return 0;
}
static int isp_fwnodes_parse(struct device *dev,
struct v4l2_async_notifier *notifier)
{
struct fwnode_handle *fwnode = NULL;
notifier->subdevs = devm_kcalloc(
dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);
if (!notifier->subdevs)
return -ENOMEM;
while (notifier->num_subdevs < ISP_MAX_SUBDEVS &&
(fwnode = fwnode_graph_get_next_endpoint(
of_fwnode_handle(dev->of_node), fwnode))) {
struct isp_async_subdev *isd;
isd = devm_kzalloc(dev, sizeof(*isd), GFP_KERNEL);
if (!isd)
goto error;
if (isp_fwnode_parse(dev, fwnode, isd)) {
devm_kfree(dev, isd);
continue;
}
notifier->subdevs[notifier->num_subdevs] = &isd->asd;
isd->asd.match.fwnode.fwnode =
fwnode_graph_get_remote_port_parent(fwnode);
if (!isd->asd.match.fwnode.fwnode) {
dev_warn(dev, "bad remote port parent\n");
goto error;
}
isd->asd.match_type = V4L2_ASYNC_MATCH_FWNODE;
notifier->num_subdevs++;
}
return notifier->num_subdevs;
error:
fwnode_handle_put(fwnode);
return -EINVAL;
}
static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async)
{
struct isp_device *isp = container_of(async, struct isp_device,
@ -2256,15 +2210,17 @@ static int isp_probe(struct platform_device *pdev)
if (ret)
return ret;
ret = isp_fwnodes_parse(&pdev->dev, &isp->notifier);
if (ret < 0)
return ret;
isp->autoidle = autoidle;
mutex_init(&isp->isp_mutex);
spin_lock_init(&isp->stat_lock);
ret = v4l2_async_notifier_parse_fwnode_endpoints(
&pdev->dev, &isp->notifier, sizeof(struct isp_async_subdev),
isp_fwnode_parse);
if (ret < 0)
goto error;
isp->dev = &pdev->dev;
isp->ref_count = 0;
@ -2406,6 +2362,7 @@ static int isp_probe(struct platform_device *pdev)
isp_xclk_cleanup(isp);
__omap3isp_put(isp, false);
error:
v4l2_async_notifier_cleanup(&isp->notifier);
mutex_destroy(&isp->isp_mutex);
return ret;

5
drivers/media/platform/omap3isp/isp.h
View file

@ -220,14 +220,11 @@ struct isp_device {
unsigned int sbl_resources;
unsigned int subclk_resources;
#define ISP_MAX_SUBDEVS 8
struct v4l2_subdev *subdevs[ISP_MAX_SUBDEVS];
};
struct isp_async_subdev {
struct isp_bus_cfg bus;
struct v4l2_async_subdev asd;
struct isp_bus_cfg bus;
};
#define v4l2_subdev_to_bus_cfg(sd) \