26 #include "jz4740-i2s.h"
107 static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s,  in jz4740_i2s_read()  argument
110 	return readl(i2s->base + reg);  in jz4740_i2s_read()
113 static inline void jz4740_i2s_write(const struct jz4740_i2s *i2s,  in jz4740_i2s_write()  argument
116 	writel(value, i2s->base + reg);  in jz4740_i2s_write()
122 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_startup()  local
129 	ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);  in jz4740_i2s_startup()
131 	jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);  in jz4740_i2s_startup()
133 	ret = clk_prepare_enable(i2s->clk_i2s);  in jz4740_i2s_startup()
137 	conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);  in jz4740_i2s_startup()
139 	jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);  in jz4740_i2s_startup()
147 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_shutdown()  local
153 	conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);  in jz4740_i2s_shutdown()
155 	jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);  in jz4740_i2s_shutdown()
157 	clk_disable_unprepare(i2s->clk_i2s);  in jz4740_i2s_shutdown()
163 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_trigger()  local
173 	ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);  in jz4740_i2s_trigger()
190 	jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);  in jz4740_i2s_trigger()
197 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_set_fmt()  local
202 	conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);  in jz4740_i2s_set_fmt()
240 	jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);  in jz4740_i2s_set_fmt()
241 	jz4740_i2s_write(i2s, JZ_REG_AIC_I2S_FMT, format);  in jz4740_i2s_set_fmt()
249 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_hw_params()  local
254 	ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);  in jz4740_i2s_hw_params()
256 	div_reg = jz4740_i2s_read(i2s, JZ_REG_AIC_CLK_DIV);  in jz4740_i2s_hw_params()
257 	div = clk_get_rate(i2s->clk_i2s) / (64 * params_rate(params));  in jz4740_i2s_hw_params()
284 		if (i2s->soc_info->version >= JZ_I2S_JZ4770) {  in jz4740_i2s_hw_params()
293 	jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);  in jz4740_i2s_hw_params()
294 	jz4740_i2s_write(i2s, JZ_REG_AIC_CLK_DIV, div_reg);  in jz4740_i2s_hw_params()
302 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_set_sysclk()  local
311 		clk_set_parent(i2s->clk_i2s, parent);  in jz4740_i2s_set_sysclk()
317 		clk_set_parent(i2s->clk_i2s, parent);  in jz4740_i2s_set_sysclk()
318 		ret = clk_set_rate(i2s->clk_i2s, freq);  in jz4740_i2s_set_sysclk()
330 	struct jz4740_i2s *i2s = snd_soc_component_get_drvdata(component);  in jz4740_i2s_suspend()  local
334 		conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);  in jz4740_i2s_suspend()
336 		jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);  in jz4740_i2s_suspend()
338 		clk_disable_unprepare(i2s->clk_i2s);  in jz4740_i2s_suspend()
341 	clk_disable_unprepare(i2s->clk_aic);  in jz4740_i2s_suspend()
348 	struct jz4740_i2s *i2s = snd_soc_component_get_drvdata(component);  in jz4740_i2s_resume()  local
352 	ret = clk_prepare_enable(i2s->clk_aic);  in jz4740_i2s_resume()
357 		ret = clk_prepare_enable(i2s->clk_i2s);  in jz4740_i2s_resume()
359 			clk_disable_unprepare(i2s->clk_aic);  in jz4740_i2s_resume()
363 		conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);  in jz4740_i2s_resume()
365 		jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);  in jz4740_i2s_resume()
373 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_dai_probe()  local
377 	ret = clk_prepare_enable(i2s->clk_aic);  in jz4740_i2s_dai_probe()
381 	snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data,  in jz4740_i2s_dai_probe()
382 		&i2s->capture_dma_data);  in jz4740_i2s_dai_probe()
384 	if (i2s->soc_info->version >= JZ_I2S_JZ4760) {  in jz4740_i2s_dai_probe()
398 	jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, JZ_AIC_CONF_RESET);  in jz4740_i2s_dai_probe()
399 	jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);  in jz4740_i2s_dai_probe()
406 	struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);  in jz4740_i2s_dai_remove()  local
408 	clk_disable_unprepare(i2s->clk_aic);  in jz4740_i2s_dai_remove()
482 	.name			= "jz4740-i2s",
489 	{ .compatible = "ingenic,jz4740-i2s", .data = &jz4740_i2s_soc_info },
490 	{ .compatible = "ingenic,jz4760-i2s", .data = &jz4760_i2s_soc_info },
491 	{ .compatible = "ingenic,jz4770-i2s", .data = &jz4770_i2s_soc_info },
492 	{ .compatible = "ingenic,jz4780-i2s", .data = &jz4780_i2s_soc_info },
500 	struct jz4740_i2s *i2s;  in jz4740_i2s_dev_probe()  local
504 	i2s = devm_kzalloc(dev, sizeof(*i2s), GFP_KERNEL);  in jz4740_i2s_dev_probe()
505 	if (!i2s)  in jz4740_i2s_dev_probe()
508 	i2s->soc_info = device_get_match_data(dev);  in jz4740_i2s_dev_probe()
510 	i2s->base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);  in jz4740_i2s_dev_probe()
511 	if (IS_ERR(i2s->base))  in jz4740_i2s_dev_probe()
512 		return PTR_ERR(i2s->base);  in jz4740_i2s_dev_probe()
514 	i2s->playback_dma_data.maxburst = 16;  in jz4740_i2s_dev_probe()
515 	i2s->playback_dma_data.addr = mem->start + JZ_REG_AIC_FIFO;  in jz4740_i2s_dev_probe()
517 	i2s->capture_dma_data.maxburst = 16;  in jz4740_i2s_dev_probe()
518 	i2s->capture_dma_data.addr = mem->start + JZ_REG_AIC_FIFO;  in jz4740_i2s_dev_probe()
520 	i2s->clk_aic = devm_clk_get(dev, "aic");  in jz4740_i2s_dev_probe()
521 	if (IS_ERR(i2s->clk_aic))  in jz4740_i2s_dev_probe()
522 		return PTR_ERR(i2s->clk_aic);  in jz4740_i2s_dev_probe()
524 	i2s->clk_i2s = devm_clk_get(dev, "i2s");  in jz4740_i2s_dev_probe()
525 	if (IS_ERR(i2s->clk_i2s))  in jz4740_i2s_dev_probe()
526 		return PTR_ERR(i2s->clk_i2s);  in jz4740_i2s_dev_probe()
528 	platform_set_drvdata(pdev, i2s);  in jz4740_i2s_dev_probe()
531 					      i2s->soc_info->dai, 1);  in jz4740_i2s_dev_probe()
542 		.name = "jz4740-i2s",
550 MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver");
552 MODULE_ALIAS("platform:jz4740-i2s");