#include <linux/videodev2.h>
#include <media/m52790.h>
#include <media/v4l2-device.h>
-#include <media/v4l2-chip-ident.h>
MODULE_DESCRIPTION("i2c device driver for m52790 A/V switch");
MODULE_AUTHOR("Hans Verkuil");
static int m52790_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
struct m52790_state *state = to_state(sd);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- if (!v4l2_chip_match_i2c_client(client, ®->match))
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
if (reg->reg != 0)
return -EINVAL;
reg->size = 1;
static int m52790_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
{
struct m52790_state *state = to_state(sd);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- if (!v4l2_chip_match_i2c_client(client, ®->match))
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
if (reg->reg != 0)
return -EINVAL;
state->input = reg->val & 0x0303;
}
#endif
-static int m52790_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_M52790, 0);
-}
-
static int m52790_log_status(struct v4l2_subdev *sd)
{
struct m52790_state *state = to_state(sd);
static const struct v4l2_subdev_core_ops m52790_core_ops = {
.log_status = m52790_log_status,
- .g_chip_ident = m52790_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = m52790_g_register,
.s_register = m52790_s_register,
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
- state = kzalloc(sizeof(struct m52790_state), GFP_KERNEL);
+ state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
struct v4l2_subdev *sd = i2c_get_clientdata(client);
v4l2_device_unregister_subdev(sd);
- kfree(to_state(sd));
return 0;
}