104 static void spdif_snd_txctrl(struct samsung_spdif_info *spdif, int on)  in spdif_snd_txctrl()  argument
106 	void __iomem *regs = spdif->regs;  in spdif_snd_txctrl()
109 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_snd_txctrl()
121 	struct samsung_spdif_info *spdif = to_info(cpu_dai);  in spdif_set_sysclk()  local
124 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_set_sysclk()
126 	clkcon = readl(spdif->regs + CLKCON);  in spdif_set_sysclk()
133 	writel(clkcon, spdif->regs + CLKCON);  in spdif_set_sysclk()
135 	spdif->clk_rate = freq;  in spdif_set_sysclk()
144 	struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);  in spdif_trigger()  local
147 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_trigger()
153 		spin_lock_irqsave(&spdif->lock, flags);  in spdif_trigger()
154 		spdif_snd_txctrl(spdif, 1);  in spdif_trigger()
155 		spin_unlock_irqrestore(&spdif->lock, flags);  in spdif_trigger()
160 		spin_lock_irqsave(&spdif->lock, flags);  in spdif_trigger()
161 		spdif_snd_txctrl(spdif, 0);  in spdif_trigger()
162 		spin_unlock_irqrestore(&spdif->lock, flags);  in spdif_trigger()
180 	struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);  in spdif_hw_params()  local
181 	void __iomem *regs = spdif->regs;  in spdif_hw_params()
187 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_hw_params()
190 		dma_data = spdif->dma_playback;  in spdif_hw_params()
192 		dev_err(spdif->dev, "Capture is not supported\n");  in spdif_hw_params()
198 	spin_lock_irqsave(&spdif->lock, flags);  in spdif_hw_params()
215 		dev_err(spdif->dev, "Unsupported data size.\n");  in spdif_hw_params()
219 	ratio = spdif->clk_rate / params_rate(params);  in spdif_hw_params()
224 		dev_err(spdif->dev, "Invalid clock ratio %ld/%d\n",  in spdif_hw_params()
225 				spdif->clk_rate, params_rate(params));  in spdif_hw_params()
257 		dev_err(spdif->dev, "Invalid sampling rate %d\n",  in spdif_hw_params()
270 	spin_unlock_irqrestore(&spdif->lock, flags);  in spdif_hw_params()
274 	spin_unlock_irqrestore(&spdif->lock, flags);  in spdif_hw_params()
282 	struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);  in spdif_shutdown()  local
283 	void __iomem *regs = spdif->regs;  in spdif_shutdown()
286 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_shutdown()
300 	struct samsung_spdif_info *spdif = to_info(cpu_dai);  in spdif_suspend()  local
301 	u32 con = spdif->saved_con;  in spdif_suspend()
303 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_suspend()
305 	spdif->saved_clkcon = readl(spdif->regs	+ CLKCON) & CLKCTL_MASK;  in spdif_suspend()
306 	spdif->saved_con = readl(spdif->regs + CON) & CON_MASK;  in spdif_suspend()
307 	spdif->saved_cstas = readl(spdif->regs + CSTAS) & CSTAS_MASK;  in spdif_suspend()
309 	writel(con | CON_SW_RESET, spdif->regs + CON);  in spdif_suspend()
317 	struct samsung_spdif_info *spdif = to_info(cpu_dai);  in spdif_resume()  local
319 	dev_dbg(spdif->dev, "Entered %s\n", __func__);  in spdif_resume()
321 	writel(spdif->saved_clkcon, spdif->regs	+ CLKCON);  in spdif_resume()
322 	writel(spdif->saved_con, spdif->regs + CON);  in spdif_resume()
323 	writel(spdif->saved_cstas, spdif->regs + CSTAS);  in spdif_resume()
363 	struct samsung_spdif_info *spdif;  in spdif_probe()  local
382 	spdif = &spdif_info;  in spdif_probe()
383 	spdif->dev = &pdev->dev;  in spdif_probe()
385 	spin_lock_init(&spdif->lock);  in spdif_probe()
387 	spdif->pclk = devm_clk_get(&pdev->dev, "spdif");  in spdif_probe()
388 	if (IS_ERR(spdif->pclk)) {  in spdif_probe()
393 	clk_prepare_enable(spdif->pclk);  in spdif_probe()
395 	spdif->sclk = devm_clk_get(&pdev->dev, "sclk_spdif");  in spdif_probe()
396 	if (IS_ERR(spdif->sclk)) {  in spdif_probe()
401 	clk_prepare_enable(spdif->sclk);  in spdif_probe()
411 	spdif->regs = ioremap(mem_res->start, 0x100);  in spdif_probe()
412 	if (spdif->regs == NULL) {  in spdif_probe()
418 	dev_set_drvdata(&pdev->dev, spdif);  in spdif_probe()
431 	spdif->dma_playback = &spdif_stereo_out;  in spdif_probe()
441 	iounmap(spdif->regs);  in spdif_probe()
445 	clk_disable_unprepare(spdif->sclk);  in spdif_probe()
447 	clk_disable_unprepare(spdif->pclk);  in spdif_probe()
454 	struct samsung_spdif_info *spdif = &spdif_info;  in spdif_remove()  local
457 	iounmap(spdif->regs);  in spdif_remove()
463 	clk_disable_unprepare(spdif->sclk);  in spdif_remove()
464 	clk_disable_unprepare(spdif->pclk);  in spdif_remove()