soc/codecs/wm8978.c

3  * wm8978.c  --  WM8978 ALSA SoC Audio Codec driver
28 #include "wm8978.h"
473 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
475 	unsigned int f_opclk = wm8978->f_opclk, f_mclk = wm8978->f_mclk,
476 		f_256fs = wm8978->f_256fs;
485 		wm8978->mclk_idx = -1;
510 		wm8978->f_pllout = f_opclk * opclk_div;
522 		int idx = wm8978_enum_mclk(f_256fs, f_mclk, &wm8978->f_pllout);
526 		wm8978->mclk_idx = idx;
531 	f2 = wm8978->f_pllout * 4;
534 		wm8978->f_mclk, wm8978->f_pllout);
536 	pll_factors(component, &pll_div, f2, wm8978->f_mclk);
566 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
571 		wm8978->f_opclk = div;
573 		if (wm8978->f_mclk)
611 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
617 		wm8978->f_mclk = freq;
620 		if (wm8978->f_opclk)
626 			wm8978->sysclk = clk_id;
629 	if (wm8978->sysclk == WM8978_PLL && (!freq || clk_id == WM8978_MCLK)) {
638 		wm8978->sysclk = WM8978_MCLK;
639 		wm8978->f_pllout = 0;
640 		wm8978->f_opclk = 0;
721 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
732 	if (!wm8978->f_mclk)
773 	wm8978->f_256fs = params_rate(params) * 256;
775 	if (wm8978->sysclk == WM8978_MCLK) {
776 		wm8978->mclk_idx = -1;
777 		f_sel = wm8978->f_mclk;
779 		if (!wm8978->f_opclk) {
785 		f_sel = wm8978->f_pllout;
788 	if (wm8978->mclk_idx < 0) {
790 		if (f_sel < wm8978->f_256fs || f_sel > 12 * wm8978->f_256fs)
794 			diff = abs(wm8978->f_256fs * 3 -
807 		best = wm8978->mclk_idx;
814 			wm8978->sysclk == WM8978_MCLK ?
826 	if (wm8978->sysclk != current_clk_id) {
827 		if (wm8978->sysclk == WM8978_PLL)
905 	.name = "wm8978-hifi",
926 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
932 	regcache_mark_dirty(wm8978->regmap);
939 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
942 	regcache_sync(wm8978->regmap);
946 	if (wm8978->f_pllout)
974 	struct wm8978_priv *wm8978 = snd_soc_component_get_drvdata(component);
981 	wm8978->sysclk = WM8978_PLL;
1024 	struct wm8978_priv *wm8978;
1027 	wm8978 = devm_kzalloc(&i2c->dev, sizeof(struct wm8978_priv),
1029 	if (wm8978 == NULL)
1032 	wm8978->regmap = devm_regmap_init_i2c(i2c, &wm8978_regmap_config);
1033 	if (IS_ERR(wm8978->regmap)) {
1034 		ret = PTR_ERR(wm8978->regmap);
1039 	i2c_set_clientdata(i2c, wm8978);
1042 	ret = regmap_write(wm8978->regmap, WM8978_RESET, 0);
1059 	{ "wm8978" },
1065 	{ .compatible = "wlf,wm8978", },
1072 		.name = "wm8978",