Lines Matching refs:ssc

14 #include <linux/atmel-ssc.h>
29 	struct ssc_device *ssc;
32 	list_for_each_entry(ssc, &ssc_list, list) {
33 		if (ssc->pdev->dev.of_node) {
34 			if (of_alias_get_id(ssc->pdev->dev.of_node, "ssc")
36 				ssc->pdev->id = ssc_num;
40 		} else if (ssc->pdev->id == ssc_num) {
48 		pr_err("ssc: ssc%d platform device is missing\n", ssc_num);
52 	if (ssc->user) {
54 		dev_dbg(&ssc->pdev->dev, "module busy\n");
57 	ssc->user++;
60 	clk_prepare(ssc->clk);
62 	return ssc;
66 void ssc_free(struct ssc_device *ssc)
71 	if (ssc->user)
72 		ssc->user--;
75 		dev_dbg(&ssc->pdev->dev, "device already free\n");
80 		clk_unprepare(ssc->clk);
117 		.compatible = "atmel,at91rm9200-ssc",
120 		.compatible = "atmel,at91sam9rl-ssc",
123 		.compatible = "atmel,at91sam9g45-ssc",
148 static int ssc_sound_dai_probe(struct ssc_device *ssc)
150 	struct device_node *np = ssc->pdev->dev.of_node;
154 	ssc->sound_dai = false;
159 	id = of_alias_get_id(np, "ssc");
164 	ssc->sound_dai = !ret;
169 static void ssc_sound_dai_remove(struct ssc_device *ssc)
171 	if (!ssc->sound_dai)
174 	atmel_ssc_put_audio(of_alias_get_id(ssc->pdev->dev.of_node, "ssc"));
177 static inline int ssc_sound_dai_probe(struct ssc_device *ssc)
179 	if (of_property_read_bool(ssc->pdev->dev.of_node, "#sound-dai-cells"))
185 static inline void ssc_sound_dai_remove(struct ssc_device *ssc)
193 	struct ssc_device *ssc;
196 	ssc = devm_kzalloc(&pdev->dev, sizeof(struct ssc_device), GFP_KERNEL);
197 	if (!ssc) {
202 	ssc->pdev = pdev;
207 	ssc->pdata = (struct atmel_ssc_platform_data *)plat_dat;
211 		ssc->clk_from_rk_pin =
215 	ssc->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &regs);
216 	if (IS_ERR(ssc->regs))
217 		return PTR_ERR(ssc->regs);
219 	ssc->phybase = regs->start;
221 	ssc->clk = devm_clk_get(&pdev->dev, "pclk");
222 	if (IS_ERR(ssc->clk)) {
228 	clk_prepare_enable(ssc->clk);
229 	ssc_writel(ssc->regs, IDR, -1);
230 	ssc_readl(ssc->regs, SR);
231 	clk_disable_unprepare(ssc->clk);
233 	ssc->irq = platform_get_irq(pdev, 0);
234 	if (ssc->irq < 0) {
236 		return ssc->irq;
240 	list_add_tail(&ssc->list, &ssc_list);
243 	platform_set_drvdata(pdev, ssc);
246 			ssc->regs, ssc->irq);
248 	if (ssc_sound_dai_probe(ssc))
249 		dev_err(&pdev->dev, "failed to auto-setup ssc for audio\n");
256 	struct ssc_device *ssc = platform_get_drvdata(pdev);
258 	ssc_sound_dai_remove(ssc);
261 	list_del(&ssc->list);
269 		.name		= "ssc",
281 MODULE_ALIAS("platform:ssc");