1 // SPDX-License-Identifier: GPL-2.0-or-later
31 		{ .addr = priv->cfg->i2c_address, .flags = 0, .len = 1 },  in mt2060_readreg()
32 		{ .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .len = 1 },  in mt2060_readreg()
39 		return -ENOMEM;  in mt2060_readreg()
47 	if (i2c_transfer(priv->i2c, msg, 2) != 2) {  in mt2060_readreg()
49 		rc = -EREMOTEIO;  in mt2060_readreg()
61 		.addr = priv->cfg->i2c_address, .flags = 0, .len = 2  in mt2060_writereg()
68 		return -ENOMEM;  in mt2060_writereg()
75 	if (i2c_transfer(priv->i2c, &msg, 1) != 1) {  in mt2060_writereg()
77 		rc = -EREMOTEIO;  in mt2060_writereg()
90 		.addr = priv->cfg->i2c_address, .flags = 0  in mt2060_writeregs()
95 		return -ENOMEM;  in mt2060_writeregs()
99 	for (rem = len - 1; rem > 0; rem -= priv->i2c_max_regs) {  in mt2060_writeregs()
100 		val_len = min_t(int, rem, priv->i2c_max_regs);  in mt2060_writeregs()
102 		xfer_buf[0] = buf[0] + len - 1 - rem;  in mt2060_writeregs()
103 		memcpy(&xfer_buf[1], &buf[1 + len - 1 - rem], val_len);  in mt2060_writeregs()
105 		if (i2c_transfer(priv->i2c, &msg, 1) != 1) {  in mt2060_writeregs()
107 			rc = -EREMOTEIO;  in mt2060_writeregs()
117 // LNABAND=3, NUM1=0x3C, DIV1=0x74, NUM2=0x1080, DIV2=0x49
141 		diff = I*(int)lo1-J*(int)lo2;  in mt2060_spurcalc()
142 		if (diff < 0) diff=-diff;  in mt2060_spurcalc()
143 		dia = (diff-(int)if2);  in mt2060_spurcalc()
144 		if (dia < 0) dia=-dia;  in mt2060_spurcalc()
167 		Sp2 = mt2060_spurcalc(lo1-I,lo2-I,if2);  in mt2060_spurcheck()
170 			J=-J; I=-I; Spur=Sp2;  in mt2060_spurcheck()
190 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;  in mt2060_set_params()
196 	u32 div1,num1,div2,num2;  in mt2060_set_params()  local
200 	priv = fe->tuner_priv;  in mt2060_set_params()
202 	if1 = priv->if1_freq;  in mt2060_set_params()
206 	if (fe->ops.i2c_gate_ctrl)  in mt2060_set_params()
207 		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */  in mt2060_set_params()
211 	freq = c->frequency / 1000; /* Hz -> kHz */  in mt2060_set_params()
215 	f_lo2 = f_lo1 - freq - IF2;  in mt2060_set_params()
218 	priv->frequency =  (f_lo1 - f_lo2 - IF2) * 1000;  in mt2060_set_params()
221 	// LO-related spurs detection and correction  in mt2060_set_params()
231 	// Frequency LO2 = 16MHz * (DIV2 + NUM2/8192 )  in mt2060_set_params()
233 	div2 = num2 / 8192;  in mt2060_set_params()
252 	b[5] = ((num2 >>12) & 1) | (div2 << 1);  in mt2060_set_params()
255 	dprintk("PLL freq=%dkHz  f_lo1=%dkHz  f_lo2=%dkHz",(int)freq,(int)f_lo1,(int)f_lo2);  in mt2060_set_params()
256 	dprintk("PLL div1=%d  num1=%d  div2=%d  num2=%d",(int)div1,(int)num1,(int)div2,(int)num2);  in mt2060_set_params()
257 	dprintk("PLL [1..5]: %2x %2x %2x %2x %2x",(int)b[1],(int)b[2],(int)b[3],(int)b[4],(int)b[5]);  in mt2060_set_params()
261 	//Waits for pll lock or timeout  in mt2060_set_params()
271 	if (fe->ops.i2c_gate_ctrl)  in mt2060_set_params()
272 		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */  in mt2060_set_params()
288 	mt2060_writereg(priv, REG_VGAG, (priv->cfg->clock_out << 6) | 0x30);  in mt2060_calibrate()
314 		mt2060_readreg(priv, REG_FM_FREQ, &priv->fmfreq); // now find out, what is fmreq used for :)  in mt2060_calibrate()
315 		dprintk("calibration was successful: %d", (int)priv->fmfreq);  in mt2060_calibrate()
322 	struct mt2060_priv *priv = fe->tuner_priv;  in mt2060_get_frequency()
323 	*frequency = priv->frequency;  in mt2060_get_frequency()
335 	struct mt2060_priv *priv = fe->tuner_priv;  in mt2060_init()
338 	if (fe->ops.i2c_gate_ctrl)  in mt2060_init()
339 		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */  in mt2060_init()
341 	if (priv->sleep) {  in mt2060_init()
348 			      (priv->cfg->clock_out << 6) | 0x33);  in mt2060_init()
351 	if (fe->ops.i2c_gate_ctrl)  in mt2060_init()
352 		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */  in mt2060_init()
359 	struct mt2060_priv *priv = fe->tuner_priv;  in mt2060_sleep()
362 	if (fe->ops.i2c_gate_ctrl)  in mt2060_sleep()
363 		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */  in mt2060_sleep()
366 			      (priv->cfg->clock_out << 6) | 0x30);  in mt2060_sleep()
370 	if (priv->sleep)  in mt2060_sleep()
374 	if (fe->ops.i2c_gate_ctrl)  in mt2060_sleep()
375 		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */  in mt2060_sleep()
382 	kfree(fe->tuner_priv);  in mt2060_release()
383 	fe->tuner_priv = NULL;  in mt2060_release()
414 	priv->cfg      = cfg;  in mt2060_attach()
415 	priv->i2c      = i2c;  in mt2060_attach()
416 	priv->if1_freq = if1;  in mt2060_attach()
417 	priv->i2c_max_regs = ~0;  in mt2060_attach()
419 	if (fe->ops.i2c_gate_ctrl)  in mt2060_attach()
420 		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c_gate */  in mt2060_attach()
432 	memcpy(&fe->ops.tuner_ops, &mt2060_tuner_ops, sizeof(struct dvb_tuner_ops));  in mt2060_attach()
434 	fe->tuner_priv = priv;  in mt2060_attach()
438 	if (fe->ops.i2c_gate_ctrl)  in mt2060_attach()
439 		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c_gate */  in mt2060_attach()
447 	struct mt2060_platform_data *pdata = client->dev.platform_data;  in mt2060_probe()
453 	dev_dbg(&client->dev, "\n");  in mt2060_probe()
456 		dev_err(&client->dev, "Cannot proceed without platform data\n");  in mt2060_probe()
457 		ret = -EINVAL;  in mt2060_probe()
461 	dev = devm_kzalloc(&client->dev, sizeof(*dev), GFP_KERNEL);  in mt2060_probe()
463 		ret = -ENOMEM;  in mt2060_probe()
467 	fe = pdata->dvb_frontend;  in mt2060_probe()
468 	dev->config.i2c_address = client->addr;  in mt2060_probe()
469 	dev->config.clock_out = pdata->clock_out;  in mt2060_probe()
470 	dev->cfg = &dev->config;  in mt2060_probe()
471 	dev->i2c = client->adapter;  in mt2060_probe()
472 	dev->if1_freq = pdata->if1 ? pdata->if1 : 1220;  in mt2060_probe()
473 	dev->client = client;  in mt2060_probe()
474 	dev->i2c_max_regs = pdata->i2c_write_max ? pdata->i2c_write_max - 1 : ~0;  in mt2060_probe()
475 	dev->sleep = true;  in mt2060_probe()
479 		ret = -ENODEV;  in mt2060_probe()
483 	dev_dbg(&client->dev, "chip id=%02x\n", chip_id);  in mt2060_probe()
486 		ret = -ENODEV;  in mt2060_probe()
499 	dev_info(&client->dev, "Microtune MT2060 successfully identified\n");  in mt2060_probe()
500 	memcpy(&fe->ops.tuner_ops, &mt2060_tuner_ops, sizeof(fe->ops.tuner_ops));  in mt2060_probe()
501 	fe->ops.tuner_ops.release = NULL;  in mt2060_probe()
502 	fe->tuner_priv = dev;  in mt2060_probe()
507 	dev_dbg(&client->dev, "failed=%d\n", ret);  in mt2060_probe()
513 	dev_dbg(&client->dev, "\n");  in mt2060_remove()