31 	u32 format;  member
52 	writel(ctrl, host->io_base + SPDIF_IN_CTRL);  in spdif_in_configure()
53 	writel(0xF, host->io_base + SPDIF_IN_IRQ_MASK);  in spdif_in_configure()
56 static int spdif_in_dai_probe(struct snd_soc_dai *dai)  in spdif_in_dai_probe()  argument
58 	struct spdif_in_dev *host = snd_soc_dai_get_drvdata(dai);  in spdif_in_dai_probe()
60 	host->dma_params_rx.filter_data = &host->dma_params;  in spdif_in_dai_probe()
61 	dai->capture_dma_data = &host->dma_params_rx;  in spdif_in_dai_probe()
67 		struct snd_soc_dai *dai)  in spdif_in_shutdown()  argument
69 	struct spdif_in_dev *host = snd_soc_dai_get_drvdata(dai);  in spdif_in_shutdown()
71 	if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)  in spdif_in_shutdown()
74 	writel(0x0, host->io_base + SPDIF_IN_IRQ_MASK);  in spdif_in_shutdown()
77 static void spdif_in_format(struct spdif_in_dev *host, u32 format)  in spdif_in_format()  argument
79 	u32 ctrl = readl(host->io_base + SPDIF_IN_CTRL);  in spdif_in_format()
81 	switch (format) {  in spdif_in_format()
91 	writel(ctrl, host->io_base + SPDIF_IN_CTRL);  in spdif_in_format()
96 		struct snd_soc_dai *dai)  in spdif_in_hw_params()  argument
98 	struct spdif_in_dev *host = snd_soc_dai_get_drvdata(dai);  in spdif_in_hw_params()
99 	u32 format;  in spdif_in_hw_params()  local
101 	if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)  in spdif_in_hw_params()
102 		return -EINVAL;  in spdif_in_hw_params()
104 	format = params_format(params);  in spdif_in_hw_params()
105 	host->saved_params.format = format;  in spdif_in_hw_params()
111 		struct snd_soc_dai *dai)  in spdif_in_trigger()  argument
113 	struct spdif_in_dev *host = snd_soc_dai_get_drvdata(dai);  in spdif_in_trigger()
117 	if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)  in spdif_in_trigger()
118 		return -EINVAL;  in spdif_in_trigger()
124 		clk_enable(host->clk);  in spdif_in_trigger()
126 		spdif_in_format(host, host->saved_params.format);  in spdif_in_trigger()
128 		ctrl = readl(host->io_base + SPDIF_IN_CTRL);  in spdif_in_trigger()
130 		writel(ctrl, host->io_base + SPDIF_IN_CTRL);  in spdif_in_trigger()
131 		writel(0xF, host->io_base + SPDIF_IN_IRQ_MASK);  in spdif_in_trigger()
137 		ctrl = readl(host->io_base + SPDIF_IN_CTRL);  in spdif_in_trigger()
139 		writel(ctrl, host->io_base + SPDIF_IN_CTRL);  in spdif_in_trigger()
140 		writel(0x0, host->io_base + SPDIF_IN_IRQ_MASK);  in spdif_in_trigger()
142 		if (host->reset_perip)  in spdif_in_trigger()
143 			host->reset_perip();  in spdif_in_trigger()
144 		clk_disable(host->clk);  in spdif_in_trigger()
148 		ret = -EINVAL;  in spdif_in_trigger()
175 	.name			= "spdif-in",
183 	u32 irq_status = readl(host->io_base + SPDIF_IN_IRQ);  in spdif_in_irq()
189 		dev_err(host->dev, "spdif in: fifo write error");  in spdif_in_irq()
191 		dev_err(host->dev, "spdif in: empty fifo read error");  in spdif_in_irq()
193 		dev_err(host->dev, "spdif in: fifo full error");  in spdif_in_irq()
195 		dev_err(host->dev, "spdif in: out of range error");  in spdif_in_irq()
197 	writel(0, host->io_base + SPDIF_IN_IRQ);  in spdif_in_irq()
216 		return -EINVAL;  in spdif_in_probe()
218 	host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);  in spdif_in_probe()
220 		return -ENOMEM;  in spdif_in_probe()
222 	host->io_base = io_base;  in spdif_in_probe()
223 	host->irq = platform_get_irq(pdev, 0);  in spdif_in_probe()
224 	if (host->irq < 0) {  in spdif_in_probe()
225 		dev_warn(&pdev->dev, "failed to get IRQ: %d\n", host->irq);  in spdif_in_probe()
226 		return host->irq;  in spdif_in_probe()
229 	host->clk = devm_clk_get(&pdev->dev, NULL);  in spdif_in_probe()
230 	if (IS_ERR(host->clk))  in spdif_in_probe()
231 		return PTR_ERR(host->clk);  in spdif_in_probe()
233 	pdata = dev_get_platdata(&pdev->dev);  in spdif_in_probe()
236 		return -EINVAL;  in spdif_in_probe()
238 	host->dma_params.data = pdata->dma_params;  in spdif_in_probe()
239 	host->dma_params.addr = res_fifo->start;  in spdif_in_probe()
240 	host->dma_params.max_burst = 16;  in spdif_in_probe()
241 	host->dma_params.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;  in spdif_in_probe()
242 	host->reset_perip = pdata->reset_perip;  in spdif_in_probe()
244 	host->dev = &pdev->dev;  in spdif_in_probe()
245 	dev_set_drvdata(&pdev->dev, host);  in spdif_in_probe()
247 	ret = devm_request_irq(&pdev->dev, host->irq, spdif_in_irq, 0,  in spdif_in_probe()
248 			"spdif-in", host);  in spdif_in_probe()
250 		dev_warn(&pdev->dev, "request_irq failed\n");  in spdif_in_probe()
254 	ret = devm_snd_soc_register_component(&pdev->dev, &spdif_in_component,  in spdif_in_probe()
259 	return devm_spear_pcm_platform_register(&pdev->dev, &host->config,  in spdif_in_probe()
260 						pdata->filter);  in spdif_in_probe()
266 		.name	= "spdif-in",