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media: i2c: ds90ub913: Use v4l2_fwnode_endpoint_parse()

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Use v4l2_fwnode_endpoint_parse() to parse the sink endpoint parameters.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Tomi Valkeinen
2023-07-31 16:24:38 +03:00
committed by Mauro Carvalho Chehab
parent 255b959be9
commit be1e71b1db
1 changed files with 21 additions and 12 deletions
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33
drivers/media/i2c/ds90ub913.c
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@@ -21,6 +21,8 @@
#include <linux/regmap.h>
#include <media/i2c/ds90ub9xx.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mediabus.h>
#include <media/v4l2-subdev.h>
#define UB913_PAD_SINK 0
@@ -83,7 +85,7 @@ struct ub913_data {
struct ds90ub9xx_platform_data *plat_data;
u32 pclk_polarity;
bool pclk_polarity_rising;
};
static inline struct ub913_data *sd_to_ub913(struct v4l2_subdev *sd)
@@ -675,25 +677,32 @@ static int ub913_add_i2c_adapter(struct ub913_data *priv)
static int ub913_parse_dt(struct ub913_data *priv)
{
struct device *dev = &priv->client->dev;
struct v4l2_fwnode_endpoint vep = {
.bus_type = V4L2_MBUS_PARALLEL,
};
struct fwnode_handle *ep_fwnode;
int ret;
ep_fwnode = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev),
UB913_PAD_SINK, 0, 0);
if (!ep_fwnode) {
dev_err_probe(dev, -ENOENT, "No sink endpoint\n");
return -ENOENT;
}
if (!ep_fwnode)
return dev_err_probe(dev, -ENOENT, "No sink endpoint\n");
ret = fwnode_property_read_u32(ep_fwnode, "pclk-sample",
&priv->pclk_polarity);
ret = v4l2_fwnode_endpoint_parse(ep_fwnode, &vep);
fwnode_handle_put(ep_fwnode);
if (ret) {
dev_err_probe(dev, ret, "failed to parse 'pclk-sample'\n");
return ret;
}
if (ret)
return dev_err_probe(dev, ret,
"failed to parse sink endpoint data\n");
if (vep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
priv->pclk_polarity_rising = true;
else if (vep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
priv->pclk_polarity_rising = false;
else
return dev_err_probe(dev, -EINVAL,
"bad value for 'pclk-sample'\n");
return 0;
}
@@ -726,7 +735,7 @@ static int ub913_hw_init(struct ub913_data *priv)
ub913_read(priv, UB913_REG_GENERAL_CFG, &v);
v &= ~UB913_REG_GENERAL_CFG_PCLK_RISING;
v |= priv->pclk_polarity ? UB913_REG_GENERAL_CFG_PCLK_RISING : 0;
v |= priv->pclk_polarity_rising ? UB913_REG_GENERAL_CFG_PCLK_RISING : 0;
ub913_write(priv, UB913_REG_GENERAL_CFG, v);
return 0;