1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8804.c  --  WM8804 S/PDIF transceiver driver
5  * Copyright 2010-11 Wolfson Microelectronics plc
26 #include <sound/soc-dapm.h>
37 	{ 3,  0x21 },     /* R3  - PLL1 */
38 	{ 4,  0xFD },     /* R4  - PLL2 */
39 	{ 5,  0x36 },     /* R5  - PLL3 */
40 	{ 6,  0x07 },     /* R6  - PLL4 */
41 	{ 7,  0x16 },     /* R7  - PLL5 */
42 	{ 8,  0x18 },     /* R8  - PLL6 */
43 	{ 9,  0xFF },     /* R9  - SPDMODE */
44 	{ 10, 0x00 },     /* R10 - INTMASK */
45 	{ 18, 0x00 },     /* R18 - SPDTX1 */
46 	{ 19, 0x00 },     /* R19 - SPDTX2 */
47 	{ 20, 0x00 },     /* R20 - SPDTX3 */
48 	{ 21, 0x71 },     /* R21 - SPDTX4 */
49 	{ 22, 0x0B },     /* R22 - SPDTX5 */
50 	{ 23, 0x70 },     /* R23 - GPO0 */
51 	{ 24, 0x57 },     /* R24 - GPO1 */
52 	{ 26, 0x42 },     /* R26 - GPO2 */
53 	{ 27, 0x06 },     /* R27 - AIFTX */
54 	{ 28, 0x06 },     /* R28 - AIFRX */
55 	{ 29, 0x80 },     /* R29 - SPDRX1 */
56 	{ 30, 0x07 },     /* R30 - PWRDN */
66 	struct gpio_desc *reset;  member
89 		regcache_mark_dirty(wm8804->regmap);	\
101 	SOC_DAPM_ENUM_EXT("Input Source", txsrc,
112 SND_SOC_DAPM_MUX("Tx Source", SND_SOC_NOPM, 6, 0, wm8804_tx_source_mux),
122 	{ "Tx Source", "AIF", "AIFRX" },
125 	{ "Tx Source", "S/PDIF RX", "SPDIFRX" },
127 	{ "SPDIFTX", NULL, "Tx Source" },
137 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in wm8804_aif_event()
143 		if (!wm8804->aif_pwr)  in wm8804_aif_event()
145 		wm8804->aif_pwr++;  in wm8804_aif_event()
149 		wm8804->aif_pwr--;  in wm8804_aif_event()
150 		if (!wm8804->aif_pwr)  in wm8804_aif_event()
163 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;  in txsrc_put()
164 	unsigned int val = ucontrol->value.enumerated.item[0] << e->shift_l;  in txsrc_put()
165 	unsigned int mask = 1 << e->shift_l;  in txsrc_put()
169 		return -EINVAL;  in txsrc_put()
173 	if (snd_soc_component_test_bits(component, e->reg, mask, val)) {  in txsrc_put()
180 		/* set the tx source */  in txsrc_put()
181 		snd_soc_component_update_bits(component, e->reg, mask, val);  in txsrc_put()
213 	return regmap_write(wm8804->regmap, WM8804_RST_DEVID1, 0x0);  in wm8804_soft_reset()
221 	component = dai->component;  in wm8804_set_fmt()
238 		dev_err(dai->dev, "Unknown dai format\n");  in wm8804_set_fmt()
239 		return -EINVAL;  in wm8804_set_fmt()
254 		dev_err(dai->dev, "Unknown master/slave configuration\n");  in wm8804_set_fmt()
255 		return -EINVAL;  in wm8804_set_fmt()
275 		dev_err(dai->dev, "Unknown polarity configuration\n");  in wm8804_set_fmt()
276 		return -EINVAL;  in wm8804_set_fmt()
294 	component = dai->component;  in wm8804_hw_params()
307 		dev_err(dai->dev, "Unsupported word length: %u\n",  in wm8804_hw_params()
309 		return -EINVAL;  in wm8804_hw_params()
345 		       unsigned int source, unsigned int mclk_div)  in pll_factors()  argument
353 	 * region of 90-100MHz.  in pll_factors()
359 			pll_div->freqmode = post_table[i].freqmode;  in pll_factors()
360 			pll_div->mclkdiv = post_table[i].mclkdiv;  in pll_factors()
369 		return -EINVAL;  in pll_factors()
372 	pll_div->prescale = 0;  in pll_factors()
373 	Ndiv = target / source;  in pll_factors()
375 		source >>= 1;  in pll_factors()
376 		pll_div->prescale = 1;  in pll_factors()
377 		Ndiv = target / source;  in pll_factors()
383 		return -EINVAL;  in pll_factors()
385 	pll_div->n = Ndiv;  in pll_factors()
387 	Nmod = target % source;  in pll_factors()
390 	do_div(Kpart, source);  in pll_factors()
396 	pll_div->k = K;  in pll_factors()
402 			  int source, unsigned int freq_in,  in wm8804_set_pll()  argument
405 	struct snd_soc_component *component = dai->component;  in wm8804_set_pll()
411 		regmap_update_bits_check(wm8804->regmap, WM8804_PWRDN,  in wm8804_set_pll()
414 			pm_runtime_put(wm8804->dev);  in wm8804_set_pll()
420 				  wm8804->mclk_div);  in wm8804_set_pll()
425 		regmap_update_bits_check(wm8804->regmap, WM8804_PWRDN,  in wm8804_set_pll()
428 			pm_runtime_get_sync(wm8804->dev);  in wm8804_set_pll()
453 	component = dai->component;  in wm8804_set_sysclk()
461 			dev_err(dai->dev, "OSCCLOCK is not within the "  in wm8804_set_sysclk()
463 			return -EINVAL;  in wm8804_set_sysclk()
476 		dev_err(dai->dev, "Unknown clock source: %d\n", clk_id);  in wm8804_set_sysclk()
477 		return -EINVAL;  in wm8804_set_sysclk()
489 	component = dai->component;  in wm8804_set_clkdiv()
497 		wm8804->mclk_div = div;  in wm8804_set_clkdiv()
500 		dev_err(dai->dev, "Unknown clock divider: %d\n", div_id);  in wm8804_set_clkdiv()
501 		return -EINVAL;  in wm8804_set_clkdiv()
523 	.name = "wm8804-spdif",
573 		return -ENOMEM;  in wm8804_probe()
577 	wm8804->dev = dev;  in wm8804_probe()
578 	wm8804->regmap = regmap;  in wm8804_probe()
580 	wm8804->reset = devm_gpiod_get_optional(dev, "wlf,reset",  in wm8804_probe()
582 	if (IS_ERR(wm8804->reset)) {  in wm8804_probe()
583 		ret = PTR_ERR(wm8804->reset);  in wm8804_probe()
584 		dev_err(dev, "Failed to get reset line: %d\n", ret);  in wm8804_probe()
588 	for (i = 0; i < ARRAY_SIZE(wm8804->supplies); i++)  in wm8804_probe()
589 		wm8804->supplies[i].supply = wm8804_supply_names[i];  in wm8804_probe()
591 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(wm8804->supplies),  in wm8804_probe()
592 				      wm8804->supplies);  in wm8804_probe()
598 	wm8804->disable_nb[0].notifier_call = wm8804_regulator_event_0;  in wm8804_probe()
599 	wm8804->disable_nb[1].notifier_call = wm8804_regulator_event_1;  in wm8804_probe()
602 	for (i = 0; i < ARRAY_SIZE(wm8804->supplies); i++) {  in wm8804_probe()
603 		struct regulator *regulator = wm8804->supplies[i].consumer;  in wm8804_probe()
606 						       &wm8804->disable_nb[i]);  in wm8804_probe()
615 	ret = regulator_bulk_enable(ARRAY_SIZE(wm8804->supplies),  in wm8804_probe()
616 				    wm8804->supplies);  in wm8804_probe()
622 	gpiod_set_value_cansleep(wm8804->reset, 1);  in wm8804_probe()
640 		ret = -EINVAL;  in wm8804_probe()
652 	if (!wm8804->reset) {  in wm8804_probe()
655 			dev_err(dev, "Failed to issue reset: %d\n", ret);  in wm8804_probe()
674 	regulator_bulk_disable(ARRAY_SIZE(wm8804->supplies), wm8804->supplies);  in wm8804_probe()
691 	ret = regulator_bulk_enable(ARRAY_SIZE(wm8804->supplies),  in wm8804_runtime_resume()
692 				    wm8804->supplies);  in wm8804_runtime_resume()
694 		dev_err(wm8804->dev, "Failed to enable supplies: %d\n", ret);  in wm8804_runtime_resume()
698 	regcache_sync(wm8804->regmap);  in wm8804_runtime_resume()
701 	regmap_update_bits(wm8804->regmap, WM8804_PWRDN, 0x8, 0x0);  in wm8804_runtime_resume()
711 	regmap_update_bits(wm8804->regmap, WM8804_PWRDN, 0x8, 0x8);  in wm8804_runtime_suspend()
713 	regulator_bulk_disable(ARRAY_SIZE(wm8804->supplies),  in wm8804_runtime_suspend()
714 			       wm8804->supplies);  in wm8804_runtime_suspend()