1 // SPDX-License-Identifier: GPL-2.0-or-later
3     bt866 - BT866 Digital Video Encoder (Rockwell Part)
26 #include <media/v4l2-device.h>
28 MODULE_DESCRIPTION("Brooktree-866 video encoder driver");
34 MODULE_PARM_DESC(debug, "Debug level (0-1)");
37 /* ----------------------------------------------------------------------- */
49 static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data)  in bt866_write()  argument
51 	struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);  in bt866_write()
58 	encoder->reg[subaddr] = data;  in bt866_write()
72 		return -1;  in bt866_write()
84 		return -EINVAL;  in bt866_s_std_output()
118 	struct bt866 *encoder = to_bt866(sd);  in bt866_s_routing()  local
123 		bt866_write(encoder, init[i], init[i+1]);  in bt866_s_routing()
125 	val = encoder->reg[0xdc];  in bt866_s_routing()
132 	bt866_write(encoder, 0xdc, val);  in bt866_s_routing()
134 	val = encoder->reg[0xcc];  in bt866_s_routing()
139 	bt866_write(encoder, 0xcc, val);  in bt866_s_routing()
149 		return -EINVAL;  in bt866_s_routing()
157 	val = encoder->reg[0xdc];
165 /* ----------------------------------------------------------------------- */
173 	.video = &bt866_video_ops,
178 	struct bt866 *encoder;  in bt866_probe()  local
182 			client->addr << 1, client->adapter->name);  in bt866_probe()
184 	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);  in bt866_probe()
185 	if (encoder == NULL)  in bt866_probe()
186 		return -ENOMEM;  in bt866_probe()
187 	sd = &encoder->sd;  in bt866_probe()