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media: i2c: mt9p031: Switch from OF to fwnode API

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Remove the direct dependency on OF by using the fwnode API. This makes
the driver usable on non-OF systems, such as ACPI-based platforms.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Laurent Pinchart
2024-10-28 22:44:43 +02:00
committed by Hans Verkuil
parent 8c66997189
commit 8f2da25e85
1 changed files with 14 additions and 18 deletions
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32
drivers/media/i2c/mt9p031.c
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@@ -17,9 +17,8 @@
#include <linux/log2.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/pm.h>
#include <linux/property.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
@@ -1058,28 +1057,27 @@ static const struct v4l2_subdev_internal_ops mt9p031_subdev_internal_ops = {
* Driver initialization and probing
*/
static int mt9p031_parse_of(struct mt9p031 *mt9p031, struct device *dev)
static int mt9p031_parse_properties(struct mt9p031 *mt9p031, struct device *dev)
{
struct device_node *np;
struct v4l2_fwnode_endpoint endpoint = {
.bus_type = V4L2_MBUS_PARALLEL
};
struct fwnode_handle *np;
int ret;
if (!dev->of_node)
return -EINVAL;
np = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
np = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
if (!np)
return -EINVAL;
return dev_err_probe(dev, -EINVAL, "endpoint node not found\n");
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &endpoint);
of_node_put(np);
ret = v4l2_fwnode_endpoint_parse(np, &endpoint);
fwnode_handle_put(np);
if (ret)
return ret;
return dev_err_probe(dev, -EINVAL, "could not parse endpoint\n");
of_property_read_u32(np, "input-clock-frequency", &mt9p031->ext_freq);
of_property_read_u32(np, "pixel-clock-frequency", &mt9p031->target_freq);
fwnode_property_read_u32(np, "input-clock-frequency",
&mt9p031->ext_freq);
fwnode_property_read_u32(np, "pixel-clock-frequency",
&mt9p031->target_freq);
mt9p031->pixclk_pol = !!(endpoint.bus.parallel.flags &
V4L2_MBUS_PCLK_SAMPLE_RISING);
@@ -1104,11 +1102,9 @@ static int mt9p031_probe(struct i2c_client *client)
if (mt9p031 == NULL)
return -ENOMEM;
ret = mt9p031_parse_of(mt9p031, &client->dev);
if (ret) {
dev_err(&client->dev, "Failed to parse DT properties\n");
ret = mt9p031_parse_properties(mt9p031, &client->dev);
if (ret)
return ret;
}
mt9p031->output_control = MT9P031_OUTPUT_CONTROL_DEF;
mt9p031->mode2 = MT9P031_READ_MODE_2_ROW_BLC;