38 static int reg_read(struct i2c_client *client, const u8 reg)  in reg_read()  argument
40 	return i2c_smbus_read_byte_data(client, reg);  in reg_read()
43 static int reg_write(struct i2c_client *client, const u8 reg,  in reg_write()  argument
46 	return i2c_smbus_write_byte_data(client, reg, data);  in reg_write()
49 static int reg_set(struct i2c_client *client, const u8 reg,  in reg_set()  argument
52 	int ret = reg_read(client, reg);  in reg_set()
55 	return reg_write(client, reg, (ret & ~mask) | (data & mask));  in reg_set()
58 static struct ak881x *to_ak881x(const struct i2c_client *client)  in to_ak881x()  argument
60 	return container_of(i2c_get_clientdata(client), struct ak881x, subdev);  in to_ak881x()
67 	struct i2c_client *client = v4l2_get_subdevdata(sd);  in ak881x_g_register()  local
73 	reg->val = reg_read(client, reg->reg);  in ak881x_g_register()
84 	struct i2c_client *client = v4l2_get_subdevdata(sd);  in ak881x_s_register()  local
89 	if (reg_write(client, reg->reg, reg->val) < 0)  in ak881x_s_register()
101 	struct i2c_client *client = v4l2_get_subdevdata(sd);  in ak881x_fill_fmt()  local
102 	struct ak881x *ak881x = to_ak881x(client);  in ak881x_fill_fmt()
129 	struct i2c_client *client = v4l2_get_subdevdata(sd);  in ak881x_cropcap()  local
130 	struct ak881x *ak881x = to_ak881x(client);  in ak881x_cropcap()
146 	struct i2c_client *client = v4l2_get_subdevdata(sd);  in ak881x_s_std_output()  local
147 	struct ak881x *ak881x = to_ak881x(client);  in ak881x_s_std_output()
170 	reg_set(client, AK881X_VIDEO_PROCESS1, vp1, 0xf);  in ak881x_s_std_output()
177 	struct i2c_client *client = v4l2_get_subdevdata(sd);  in ak881x_s_stream()  local
178 	struct ak881x *ak881x = to_ak881x(client);  in ak881x_s_stream()
189 		reg_write(client, AK881X_DAC_MODE, dac);  in ak881x_s_stream()
190 		dev_dbg(&client->dev, "chip status 0x%x\n",  in ak881x_s_stream()
191 			reg_read(client, AK881X_STATUS));  in ak881x_s_stream()
194 		reg_write(client, AK881X_DAC_MODE, 0);  in ak881x_s_stream()
195 		dev_dbg(&client->dev, "chip status 0x%x\n",  in ak881x_s_stream()
196 			reg_read(client, AK881X_STATUS));  in ak881x_s_stream()
227 static int ak881x_probe(struct i2c_client *client,  in ak881x_probe()  argument
230 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);  in ak881x_probe()
240 	ak881x = devm_kzalloc(&client->dev, sizeof(*ak881x), GFP_KERNEL);  in ak881x_probe()
244 	v4l2_i2c_subdev_init(&ak881x->subdev, client, &ak881x_subdev_ops);  in ak881x_probe()
246 	data = reg_read(client, AK881X_DEVICE_ID);  in ak881x_probe()
253 		dev_err(&client->dev,  in ak881x_probe()
258 	ak881x->revision = reg_read(client, AK881X_DEVICE_REVISION);  in ak881x_probe()
259 	ak881x->pdata = client->dev.platform_data;  in ak881x_probe()
279 		dev_dbg(&client->dev, "IF mode %x\n", ifmode);  in ak881x_probe()
286 		reg_write(client, AK881X_INTERFACE_MODE, ifmode | (20 << 3));  in ak881x_probe()
292 	dev_info(&client->dev, "Detected an ak881x chip ID %x, revision %x\n",  in ak881x_probe()
298 static int ak881x_remove(struct i2c_client *client)  in ak881x_remove()  argument
300 	struct ak881x *ak881x = to_ak881x(client);  in ak881x_remove()