3  * IMG SPDIF output controller driver
54 	struct img_spdif_out *spdif = dev_get_drvdata(dev);  in img_spdif_out_runtime_suspend()  local
56 	clk_disable_unprepare(spdif->clk_ref);  in img_spdif_out_runtime_suspend()
57 	clk_disable_unprepare(spdif->clk_sys);  in img_spdif_out_runtime_suspend()
64 	struct img_spdif_out *spdif = dev_get_drvdata(dev);  in img_spdif_out_runtime_resume()  local
67 	ret = clk_prepare_enable(spdif->clk_sys);  in img_spdif_out_runtime_resume()
73 	ret = clk_prepare_enable(spdif->clk_ref);  in img_spdif_out_runtime_resume()
76 		clk_disable_unprepare(spdif->clk_sys);  in img_spdif_out_runtime_resume()
83 static inline void img_spdif_out_writel(struct img_spdif_out *spdif, u32 val,  in img_spdif_out_writel()  argument
86 	writel(val, spdif->base + reg);  in img_spdif_out_writel()
89 static inline u32 img_spdif_out_readl(struct img_spdif_out *spdif, u32 reg)  in img_spdif_out_readl()  argument
91 	return readl(spdif->base + reg);  in img_spdif_out_readl()
94 static void img_spdif_out_reset(struct img_spdif_out *spdif)  in img_spdif_out_reset()  argument
98 	ctl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL) &  in img_spdif_out_reset()
100 	status_low = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);  in img_spdif_out_reset()
101 	status_high = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_reset()
103 	reset_control_assert(spdif->rst);  in img_spdif_out_reset()
104 	reset_control_deassert(spdif->rst);  in img_spdif_out_reset()
106 	img_spdif_out_writel(spdif, ctl, IMG_SPDIF_OUT_CTL);  in img_spdif_out_reset()
107 	img_spdif_out_writel(spdif, status_low, IMG_SPDIF_OUT_CSL);  in img_spdif_out_reset()
108 	img_spdif_out_writel(spdif, status_high, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_reset()
136 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);  in img_spdif_out_get_status()  local
140 	spin_lock_irqsave(&spdif->lock, flags);  in img_spdif_out_get_status()
142 	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);  in img_spdif_out_get_status()
148 	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_get_status()
153 	spin_unlock_irqrestore(&spdif->lock, flags);  in img_spdif_out_get_status()
162 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);  in img_spdif_out_set_status()  local
171 	spin_lock_irqsave(&spdif->lock, flags);  in img_spdif_out_set_status()
173 	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSL);  in img_spdif_out_set_status()
175 	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_set_status()
179 	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_set_status()
181 	spin_unlock_irqrestore(&spdif->lock, flags);  in img_spdif_out_set_status()
206 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);  in img_spdif_out_trigger()  local
214 		reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);  in img_spdif_out_trigger()
216 		img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CTL);  in img_spdif_out_trigger()
221 		spin_lock_irqsave(&spdif->lock, flags);  in img_spdif_out_trigger()
222 		img_spdif_out_reset(spdif);  in img_spdif_out_trigger()
223 		spin_unlock_irqrestore(&spdif->lock, flags);  in img_spdif_out_trigger()
235 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);  in img_spdif_out_hw_params()  local
245 	dev_dbg(spdif->dev, "hw_params rate %ld channels %u format %u\n",  in img_spdif_out_hw_params()
254 	pre_div_a = clk_round_rate(spdif->clk_ref, rate * 256);  in img_spdif_out_hw_params()
257 	pre_div_b = clk_round_rate(spdif->clk_ref, rate * 384);  in img_spdif_out_hw_params()
266 		clk_set_rate(spdif->clk_ref, pre_div_b);  in img_spdif_out_hw_params()
268 		clk_set_rate(spdif->clk_ref, pre_div_a);  in img_spdif_out_hw_params()
275 	clk_rate = clk_get_rate(spdif->clk_ref);  in img_spdif_out_hw_params()
280 	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);  in img_spdif_out_hw_params()
285 	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CTL);  in img_spdif_out_hw_params()
292 	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);  in img_spdif_out_dai_probe()  local
294 	snd_soc_dai_init_dma_data(dai, &spdif->dma_data, NULL);  in img_spdif_out_dai_probe()
319 	.name = "img-spdif-out",
325 	struct img_spdif_out *spdif;  in img_spdif_out_probe()  local
331 	spdif = devm_kzalloc(&pdev->dev, sizeof(*spdif), GFP_KERNEL);  in img_spdif_out_probe()
332 	if (!spdif)  in img_spdif_out_probe()
335 	platform_set_drvdata(pdev, spdif);  in img_spdif_out_probe()
337 	spdif->dev = &pdev->dev;  in img_spdif_out_probe()
343 	spdif->base = base;  in img_spdif_out_probe()
345 	spdif->rst = devm_reset_control_get_exclusive(&pdev->dev, "rst");  in img_spdif_out_probe()
346 	if (IS_ERR(spdif->rst))  in img_spdif_out_probe()
347 		return dev_err_probe(&pdev->dev, PTR_ERR(spdif->rst),  in img_spdif_out_probe()
350 	spdif->clk_sys = devm_clk_get(&pdev->dev, "sys");  in img_spdif_out_probe()
351 	if (IS_ERR(spdif->clk_sys))  in img_spdif_out_probe()
352 		return dev_err_probe(dev, PTR_ERR(spdif->clk_sys),  in img_spdif_out_probe()
355 	spdif->clk_ref = devm_clk_get(&pdev->dev, "ref");  in img_spdif_out_probe()
356 	if (IS_ERR(spdif->clk_ref))  in img_spdif_out_probe()
357 		return dev_err_probe(dev, PTR_ERR(spdif->clk_ref),  in img_spdif_out_probe()
370 	img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,  in img_spdif_out_probe()
373 	img_spdif_out_reset(spdif);  in img_spdif_out_probe()
376 	spin_lock_init(&spdif->lock);  in img_spdif_out_probe()
378 	spdif->dma_data.addr = res->start + IMG_SPDIF_OUT_TX_FIFO;  in img_spdif_out_probe()
379 	spdif->dma_data.addr_width = 4;  in img_spdif_out_probe()
380 	spdif->dma_data.maxburst = 4;  in img_spdif_out_probe()
415 	struct img_spdif_out *spdif = dev_get_drvdata(dev);  in img_spdif_out_suspend()  local
424 	spdif->suspend_ctl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);  in img_spdif_out_suspend()
425 	spdif->suspend_csl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);  in img_spdif_out_suspend()
426 	spdif->suspend_csh = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_suspend()
435 	struct img_spdif_out *spdif = dev_get_drvdata(dev);  in img_spdif_out_resume()  local
442 	img_spdif_out_writel(spdif, spdif->suspend_ctl, IMG_SPDIF_OUT_CTL);  in img_spdif_out_resume()
443 	img_spdif_out_writel(spdif, spdif->suspend_csl, IMG_SPDIF_OUT_CSL);  in img_spdif_out_resume()
444 	img_spdif_out_writel(spdif, spdif->suspend_csh, IMG_SPDIF_OUT_CSH_UV);  in img_spdif_out_resume()
453 	{ .compatible = "img,spdif-out" },
466 		.name = "img-spdif-out",
476 MODULE_DESCRIPTION("IMG SPDIF Output driver");