1 // SPDX-License-Identifier: GPL-2.0
3 // rk3328 ALSA SoC Audio driver
23  * 0: -39dB
57 static int rk3328_codec_reset(struct rk3328_codec_priv *rk3328)  in rk3328_codec_reset()  argument
59 	regmap_write(rk3328->regmap, CODEC_RESET, 0x00);  in rk3328_codec_reset()
61 	regmap_write(rk3328->regmap, CODEC_RESET, 0x03);  in rk3328_codec_reset()
68 	struct rk3328_codec_priv *rk3328 =  in rk3328_set_dai_fmt()  local
69 		snd_soc_component_get_drvdata(dai->component);  in rk3328_set_dai_fmt()
80 		return -EINVAL;  in rk3328_set_dai_fmt()
83 	regmap_update_bits(rk3328->regmap, DAC_INIT_CTRL1,  in rk3328_set_dai_fmt()
101 		return -EINVAL;  in rk3328_set_dai_fmt()
104 	regmap_update_bits(rk3328->regmap, DAC_INIT_CTRL2,  in rk3328_set_dai_fmt()
112 	struct rk3328_codec_priv *rk3328 =  in rk3328_mute_stream()  local
113 		snd_soc_component_get_drvdata(dai->component);  in rk3328_mute_stream()
121 	regmap_update_bits(rk3328->regmap, HPOUT_CTRL,  in rk3328_mute_stream()
127 static int rk3328_codec_power_on(struct rk3328_codec_priv *rk3328, int wait_ms)  in rk3328_codec_power_on()  argument
129 	regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,  in rk3328_codec_power_on()
132 	regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,  in rk3328_codec_power_on()
140 static int rk3328_codec_power_off(struct rk3328_codec_priv *rk3328, int wait_ms)  in rk3328_codec_power_off()  argument
142 	regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,  in rk3328_codec_power_off()
145 	regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,  in rk3328_codec_power_off()
182 static int rk3328_codec_open_playback(struct rk3328_codec_priv *rk3328)  in rk3328_codec_open_playback()  argument
186 	regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,  in rk3328_codec_open_playback()
191 		regmap_update_bits(rk3328->regmap,  in rk3328_codec_open_playback()
198 	msleep(rk3328->spk_depop_time);  in rk3328_codec_open_playback()
199 	gpiod_set_value(rk3328->mute, 0);  in rk3328_codec_open_playback()
201 	regmap_update_bits(rk3328->regmap, HPOUTL_GAIN_CTRL,  in rk3328_codec_open_playback()
203 	regmap_update_bits(rk3328->regmap, HPOUTR_GAIN_CTRL,  in rk3328_codec_open_playback()
236 static int rk3328_codec_close_playback(struct rk3328_codec_priv *rk3328)  in rk3328_codec_close_playback()  argument
240 	gpiod_set_value(rk3328->mute, 1);  in rk3328_codec_close_playback()
242 	regmap_update_bits(rk3328->regmap, HPOUTL_GAIN_CTRL,  in rk3328_codec_close_playback()
244 	regmap_update_bits(rk3328->regmap, HPOUTR_GAIN_CTRL,  in rk3328_codec_close_playback()
248 		regmap_update_bits(rk3328->regmap,  in rk3328_codec_close_playback()
255 	/* Workaround for silence when changed Fs 48 -> 44.1kHz */  in rk3328_codec_close_playback()
256 	rk3328_codec_reset(rk3328);  in rk3328_codec_close_playback()
258 	regmap_update_bits(rk3328->regmap, DAC_PRECHARGE_CTRL,  in rk3328_codec_close_playback()
269 	struct rk3328_codec_priv *rk3328 =  in rk3328_hw_params()  local
270 		snd_soc_component_get_drvdata(dai->component);  in rk3328_hw_params()
287 		return -EINVAL;  in rk3328_hw_params()
289 	regmap_update_bits(rk3328->regmap, DAC_INIT_CTRL2, DAC_VDL_MASK, val);  in rk3328_hw_params()
292 	regmap_update_bits(rk3328->regmap, DAC_INIT_CTRL3,  in rk3328_hw_params()
301 	struct rk3328_codec_priv *rk3328 =  in rk3328_pcm_startup()  local
302 		snd_soc_component_get_drvdata(dai->component);  in rk3328_pcm_startup()
304 	return rk3328_codec_open_playback(rk3328);  in rk3328_pcm_startup()
310 	struct rk3328_codec_priv *rk3328 =  in rk3328_pcm_shutdown()  local
311 		snd_soc_component_get_drvdata(dai->component);  in rk3328_pcm_shutdown()
313 	rk3328_codec_close_playback(rk3328);  in rk3328_pcm_shutdown()
327 		.name = "rk3328-hifi",
355 	struct rk3328_codec_priv *rk3328 =  in rk3328_codec_probe()  local
358 	rk3328_codec_reset(rk3328);  in rk3328_codec_probe()
359 	rk3328_codec_power_on(rk3328, 0);  in rk3328_codec_probe()
366 	struct rk3328_codec_priv *rk3328 =  in rk3328_codec_remove()  local
369 	rk3328_codec_close_playback(rk3328);  in rk3328_codec_remove()
370 	rk3328_codec_power_off(rk3328, 0);  in rk3328_codec_remove()
425 	struct device_node *rk3328_np = pdev->dev.of_node;  in rk3328_platform_probe()
426 	struct rk3328_codec_priv *rk3328;  in rk3328_platform_probe()  local
431 	rk3328 = devm_kzalloc(&pdev->dev, sizeof(*rk3328), GFP_KERNEL);  in rk3328_platform_probe()
432 	if (!rk3328)  in rk3328_platform_probe()
433 		return -ENOMEM;  in rk3328_platform_probe()
438 		dev_err(&pdev->dev, "missing 'rockchip,grf'\n");  in rk3328_platform_probe()
445 	ret = of_property_read_u32(rk3328_np, "spk-depop-time-ms",  in rk3328_platform_probe()
446 				   &rk3328->spk_depop_time);  in rk3328_platform_probe()
448 		dev_info(&pdev->dev, "spk_depop_time use default value.\n");  in rk3328_platform_probe()
449 		rk3328->spk_depop_time = 200;  in rk3328_platform_probe()
452 	rk3328->mute = gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_HIGH);  in rk3328_platform_probe()
453 	if (IS_ERR(rk3328->mute))  in rk3328_platform_probe()
454 		return PTR_ERR(rk3328->mute);  in rk3328_platform_probe()
460 	if (!rk3328->mute && of_machine_is_compatible("pine64,rock64")) {  in rk3328_platform_probe()
461 		dev_warn(&pdev->dev, "assuming implicit control of GPIO_MUTE; update devicetree if possible\n");  in rk3328_platform_probe()
465 	rk3328->mclk = devm_clk_get(&pdev->dev, "mclk");  in rk3328_platform_probe()
466 	if (IS_ERR(rk3328->mclk))  in rk3328_platform_probe()
467 		return PTR_ERR(rk3328->mclk);  in rk3328_platform_probe()
469 	ret = clk_prepare_enable(rk3328->mclk);  in rk3328_platform_probe()
472 	clk_set_rate(rk3328->mclk, INITIAL_FREQ);  in rk3328_platform_probe()
474 	rk3328->pclk = devm_clk_get(&pdev->dev, "pclk");  in rk3328_platform_probe()
475 	if (IS_ERR(rk3328->pclk)) {  in rk3328_platform_probe()
476 		dev_err(&pdev->dev, "can't get acodec pclk\n");  in rk3328_platform_probe()
477 		ret = PTR_ERR(rk3328->pclk);  in rk3328_platform_probe()
481 	ret = clk_prepare_enable(rk3328->pclk);  in rk3328_platform_probe()
483 		dev_err(&pdev->dev, "failed to enable acodec pclk\n");  in rk3328_platform_probe()
493 	rk3328->regmap = devm_regmap_init_mmio(&pdev->dev, base,  in rk3328_platform_probe()
495 	if (IS_ERR(rk3328->regmap)) {  in rk3328_platform_probe()
496 		ret = PTR_ERR(rk3328->regmap);  in rk3328_platform_probe()
500 	platform_set_drvdata(pdev, rk3328);  in rk3328_platform_probe()
502 	ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_rk3328,  in rk3328_platform_probe()
511 	clk_disable_unprepare(rk3328->pclk);  in rk3328_platform_probe()
514 	clk_disable_unprepare(rk3328->mclk);  in rk3328_platform_probe()
519 		{ .compatible = "rockchip,rk3328-codec", },
526 		   .name = "rk3328-codec",
533 MODULE_AUTHOR("Sugar Zhang <sugar.zhang@rock-chips.com>");
534 MODULE_DESCRIPTION("ASoC rk3328 codec driver");