2  * STM32 ALSA SoC Digital Audio Interface (SAI) driver.
42 	{ .compatible = "st,stm32f4-sai", .data = (void *)&stm32_sai_conf_f4 },
43 	{ .compatible = "st,stm32h7-sai", .data = (void *)&stm32_sai_conf_h7 },
47 static int stm32_sai_sync_conf_client(struct stm32_sai_data *sai, int synci)  in stm32_sai_sync_conf_client()  argument
52 	ret = clk_prepare_enable(sai->pclk);  in stm32_sai_sync_conf_client()
54 		dev_err(&sai->pdev->dev, "failed to enable clock: %d\n", ret);  in stm32_sai_sync_conf_client()
58 	writel_relaxed(FIELD_PREP(SAI_GCR_SYNCIN_MASK, (synci - 1)), sai->base);  in stm32_sai_sync_conf_client()
60 	clk_disable_unprepare(sai->pclk);  in stm32_sai_sync_conf_client()
65 static int stm32_sai_sync_conf_provider(struct stm32_sai_data *sai, int synco)  in stm32_sai_sync_conf_provider()  argument
71 	ret = clk_prepare_enable(sai->pclk);  in stm32_sai_sync_conf_provider()
73 		dev_err(&sai->pdev->dev, "failed to enable clock: %d\n", ret);  in stm32_sai_sync_conf_provider()
77 	dev_dbg(&sai->pdev->dev, "Set %s%s as synchro provider\n",  in stm32_sai_sync_conf_provider()
78 		sai->pdev->dev.of_node->name,  in stm32_sai_sync_conf_provider()
81 	prev_synco = FIELD_GET(SAI_GCR_SYNCOUT_MASK, readl_relaxed(sai->base));  in stm32_sai_sync_conf_provider()
83 		dev_err(&sai->pdev->dev, "%s%s already set as sync provider\n",  in stm32_sai_sync_conf_provider()
84 			sai->pdev->dev.of_node->name,  in stm32_sai_sync_conf_provider()
86 		clk_disable_unprepare(sai->pclk);  in stm32_sai_sync_conf_provider()
90 	writel_relaxed(FIELD_PREP(SAI_GCR_SYNCOUT_MASK, synco), sai->base);  in stm32_sai_sync_conf_provider()
92 	clk_disable_unprepare(sai->pclk);  in stm32_sai_sync_conf_provider()
114 			"SAI sync provider data not found\n");  in stm32_sai_set_sync()
134 	struct stm32_sai_data *sai;  in stm32_sai_probe()  local
139 	sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);  in stm32_sai_probe()
140 	if (!sai)  in stm32_sai_probe()
144 	sai->base = devm_ioremap_resource(&pdev->dev, res);  in stm32_sai_probe()
145 	if (IS_ERR(sai->base))  in stm32_sai_probe()
146 		return PTR_ERR(sai->base);  in stm32_sai_probe()
150 		sai->conf = (struct stm32_sai_conf *)of_id->data;  in stm32_sai_probe()
154 	if (!STM_SAI_IS_F4(sai)) {  in stm32_sai_probe()
155 		sai->pclk = devm_clk_get(&pdev->dev, "pclk");  in stm32_sai_probe()
156 		if (IS_ERR(sai->pclk)) {  in stm32_sai_probe()
158 			return PTR_ERR(sai->pclk);  in stm32_sai_probe()
162 	sai->clk_x8k = devm_clk_get(&pdev->dev, "x8k");  in stm32_sai_probe()
163 	if (IS_ERR(sai->clk_x8k)) {  in stm32_sai_probe()
165 		return PTR_ERR(sai->clk_x8k);  in stm32_sai_probe()
168 	sai->clk_x11k = devm_clk_get(&pdev->dev, "x11k");  in stm32_sai_probe()
169 	if (IS_ERR(sai->clk_x11k)) {  in stm32_sai_probe()
171 		return PTR_ERR(sai->clk_x11k);  in stm32_sai_probe()
175 	sai->irq = platform_get_irq(pdev, 0);  in stm32_sai_probe()
176 	if (sai->irq < 0) {  in stm32_sai_probe()
178 		return sai->irq;  in stm32_sai_probe()
189 	sai->pdev = pdev;  in stm32_sai_probe()
190 	sai->set_sync = &stm32_sai_set_sync;  in stm32_sai_probe()
191 	platform_set_drvdata(pdev, sai);  in stm32_sai_probe()
200 		.name = "st,stm32-sai",
208 MODULE_DESCRIPTION("STM32 Soc SAI Interface");
210 MODULE_ALIAS("platform:st,stm32-sai");