1 // SPDX-License-Identifier: GPL-2.0-only
2 // SPDX-FileCopyrightText: Copyright (c) 2020-2024 NVIDIA CORPORATION & AFFILIATES. All rights rese…
4 // tegra186_dspk.c - Tegra186 DSPK driver
34 	ucontrol->value.integer.value[0] = dspk->rx_fifo_th;  in tegra186_dspk_get_fifo_th()
44 	int value = ucontrol->value.integer.value[0];  in tegra186_dspk_put_fifo_th()
46 	if (value == dspk->rx_fifo_th)  in tegra186_dspk_put_fifo_th()
49 	dspk->rx_fifo_th = value;  in tegra186_dspk_put_fifo_th()
60 	ucontrol->value.enumerated.item[0] = dspk->osr_val;  in tegra186_dspk_get_osr_val()
70 	unsigned int value = ucontrol->value.enumerated.item[0];  in tegra186_dspk_put_osr_val()
72 	if (value == dspk->osr_val)  in tegra186_dspk_put_osr_val()
75 	dspk->osr_val = value;  in tegra186_dspk_put_osr_val()
86 	ucontrol->value.enumerated.item[0] = dspk->lrsel;  in tegra186_dspk_get_pol_sel()
96 	unsigned int value = ucontrol->value.enumerated.item[0];  in tegra186_dspk_put_pol_sel()
98 	if (value == dspk->lrsel)  in tegra186_dspk_put_pol_sel()
101 	dspk->lrsel = value;  in tegra186_dspk_put_pol_sel()
112 	ucontrol->value.enumerated.item[0] = dspk->ch_sel;  in tegra186_dspk_get_ch_sel()
122 	unsigned int value = ucontrol->value.enumerated.item[0];  in tegra186_dspk_put_ch_sel()
124 	if (value == dspk->ch_sel)  in tegra186_dspk_put_ch_sel()
127 	dspk->ch_sel = value;  in tegra186_dspk_put_ch_sel()
138 	ucontrol->value.enumerated.item[0] = dspk->mono_to_stereo;  in tegra186_dspk_get_mono_to_stereo()
148 	unsigned int value = ucontrol->value.enumerated.item[0];  in tegra186_dspk_put_mono_to_stereo()
150 	if (value == dspk->mono_to_stereo)  in tegra186_dspk_put_mono_to_stereo()
153 	dspk->mono_to_stereo = value;  in tegra186_dspk_put_mono_to_stereo()
164 	ucontrol->value.enumerated.item[0] = dspk->stereo_to_mono;  in tegra186_dspk_get_stereo_to_mono()
174 	unsigned int value = ucontrol->value.enumerated.item[0];  in tegra186_dspk_put_stereo_to_mono()
176 	if (value == dspk->stereo_to_mono)  in tegra186_dspk_put_stereo_to_mono()
179 	dspk->stereo_to_mono = value;  in tegra186_dspk_put_stereo_to_mono()
188 	regcache_cache_only(dspk->regmap, true);  in tegra186_dspk_runtime_suspend()
189 	regcache_mark_dirty(dspk->regmap);  in tegra186_dspk_runtime_suspend()
191 	clk_disable_unprepare(dspk->clk_dspk);  in tegra186_dspk_runtime_suspend()
201 	err = clk_prepare_enable(dspk->clk_dspk);  in tegra186_dspk_runtime_resume()
207 	regcache_cache_only(dspk->regmap, false);  in tegra186_dspk_runtime_resume()
208 	regcache_sync(dspk->regmap);  in tegra186_dspk_runtime_resume()
219 	struct device *dev = dai->dev;  in tegra186_dspk_hw_params()
230 	switch (dspk->ch_sel) {  in tegra186_dspk_hw_params()
240 		return -EINVAL;  in tegra186_dspk_hw_params()
254 		return -EOPNOTSUPP;  in tegra186_dspk_hw_params()
260 	max_th = (TEGRA186_DSPK_RX_FIFO_DEPTH / cif_conf.audio_ch) - 1;  in tegra186_dspk_hw_params()
262 	if (dspk->rx_fifo_th > max_th)  in tegra186_dspk_hw_params()
263 		dspk->rx_fifo_th = max_th;  in tegra186_dspk_hw_params()
265 	cif_conf.threshold = dspk->rx_fifo_th;  in tegra186_dspk_hw_params()
266 	cif_conf.mono_conv = dspk->mono_to_stereo;  in tegra186_dspk_hw_params()
267 	cif_conf.stereo_conv = dspk->stereo_to_mono;  in tegra186_dspk_hw_params()
269 	tegra_set_cif(dspk->regmap, TEGRA186_DSPK_RX_CIF_CTRL,  in tegra186_dspk_hw_params()
278 	dspk_clk = (DSPK_OSR_FACTOR << dspk->osr_val) * srate * DSPK_CLK_RATIO;  in tegra186_dspk_hw_params()
280 	err = clk_set_rate(dspk->clk_dspk, dspk_clk);  in tegra186_dspk_hw_params()
288 	regmap_update_bits(dspk->regmap,  in tegra186_dspk_hw_params()
296 			   (dspk->osr_val << DSPK_OSR_SHIFT) |  in tegra186_dspk_hw_params()
297 			   ((dspk->ch_sel + 1) << CH_SEL_SHIFT) |  in tegra186_dspk_hw_params()
298 			   (dspk->lrsel << LRSEL_POL_SHIFT));  in tegra186_dspk_hw_params()
309 	    .name = "DSPK-CIF",
311 		.stream_name = "CIF-Playback",
320 	    .name = "DSPK-DAP",
322 		.stream_name = "DAP-Playback",
336 	SND_SOC_DAPM_SPK("SPK", NULL),
340 	{ "XBAR-Playback",	NULL,	"XBAR-TX" },
341 	{ "CIF-Playback",	NULL,	"XBAR-Playback" },
342 	{ "RX",			NULL,	"CIF-Playback" },
343 	{ "DAP-Playback",	NULL,	"RX" },
344 	{ "SPK",		NULL,	"DAP-Playback" },
391 		       TEGRA186_DSPK_RX_FIFO_DEPTH - 1, 0,
399 	SOC_ENUM_EXT("Mono To Stereo", tegra186_dspk_mono_conv_enum,
402 	SOC_ENUM_EXT("Stereo To Mono", tegra186_dspk_stereo_conv_enum,
471 	{ .compatible = "nvidia,tegra186-dspk" },
478 	struct device *dev = &pdev->dev;  in tegra186_dspk_platform_probe()
485 		return -ENOMEM;  in tegra186_dspk_platform_probe()
487 	dspk->osr_val = DSPK_OSR_64;  in tegra186_dspk_platform_probe()
488 	dspk->lrsel = DSPK_LRSEL_LEFT;  in tegra186_dspk_platform_probe()
489 	dspk->ch_sel = DSPK_CH_SELECT_STEREO;  in tegra186_dspk_platform_probe()
490 	dspk->mono_to_stereo = 0; /* "Zero" */  in tegra186_dspk_platform_probe()
494 	dspk->clk_dspk = devm_clk_get(dev, "dspk");  in tegra186_dspk_platform_probe()
495 	if (IS_ERR(dspk->clk_dspk)) {  in tegra186_dspk_platform_probe()
497 		return PTR_ERR(dspk->clk_dspk);  in tegra186_dspk_platform_probe()
504 	dspk->regmap = devm_regmap_init_mmio(dev, regs, &tegra186_dspk_regmap);  in tegra186_dspk_platform_probe()
505 	if (IS_ERR(dspk->regmap)) {  in tegra186_dspk_platform_probe()
507 		return PTR_ERR(dspk->regmap);  in tegra186_dspk_platform_probe()
510 	regcache_cache_only(dspk->regmap, true);  in tegra186_dspk_platform_probe()
528 	pm_runtime_disable(&pdev->dev);  in tegra186_dspk_platform_remove()
540 		.name = "tegra186-dspk",