1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (C) 2014-2015 Freescale Semiconductor, Inc.
12 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
50 	struct snd_soc_component *component = dai->component;  in fsl_mqs_hw_params()
56 	mclk_rate = clk_get_rate(mqs_priv->mclk);  in fsl_mqs_hw_params()
68 		if (mqs_priv->use_gpr) {  in fsl_mqs_hw_params()
69 			regmap_update_bits(mqs_priv->regmap, IOMUXC_GPR2,  in fsl_mqs_hw_params()
71 					   (div - 1) << IMX6SX_GPR2_MQS_CLK_DIV_SHIFT);  in fsl_mqs_hw_params()
72 			regmap_update_bits(mqs_priv->regmap, IOMUXC_GPR2,  in fsl_mqs_hw_params()
75 			regmap_update_bits(mqs_priv->regmap, REG_MQS_CTRL,  in fsl_mqs_hw_params()
77 					   (div - 1) << MQS_CLK_DIV_SHIFT);  in fsl_mqs_hw_params()
78 			regmap_update_bits(mqs_priv->regmap, REG_MQS_CTRL,  in fsl_mqs_hw_params()
82 		dev_err(component->dev, "can't get proper divider\n");  in fsl_mqs_hw_params()
95 		return -EINVAL;  in fsl_mqs_set_dai_fmt()
102 		return -EINVAL;  in fsl_mqs_set_dai_fmt()
109 		return -EINVAL;  in fsl_mqs_set_dai_fmt()
118 	struct snd_soc_component *component = dai->component;  in fsl_mqs_startup()
121 	if (mqs_priv->use_gpr)  in fsl_mqs_startup()
122 		regmap_update_bits(mqs_priv->regmap, IOMUXC_GPR2,  in fsl_mqs_startup()
126 		regmap_update_bits(mqs_priv->regmap, REG_MQS_CTRL,  in fsl_mqs_startup()
135 	struct snd_soc_component *component = dai->component;  in fsl_mqs_shutdown()
138 	if (mqs_priv->use_gpr)  in fsl_mqs_shutdown()
139 		regmap_update_bits(mqs_priv->regmap, IOMUXC_GPR2,  in fsl_mqs_shutdown()
142 		regmap_update_bits(mqs_priv->regmap, REG_MQS_CTRL,  in fsl_mqs_shutdown()
159 	.name		= "fsl-mqs-dai",
180 	struct device_node *np = pdev->dev.of_node;  in fsl_mqs_probe()
186 	mqs_priv = devm_kzalloc(&pdev->dev, sizeof(*mqs_priv), GFP_KERNEL);  in fsl_mqs_probe()
188 		return -ENOMEM;  in fsl_mqs_probe()
190 	/* On i.MX6sx the MQS control register is in GPR domain  in fsl_mqs_probe()
194 	if (of_device_is_compatible(np, "fsl,imx8qm-mqs"))  in fsl_mqs_probe()
195 		mqs_priv->use_gpr = false;  in fsl_mqs_probe()
197 		mqs_priv->use_gpr = true;  in fsl_mqs_probe()
199 	if (mqs_priv->use_gpr) {  in fsl_mqs_probe()
200 		gpr_np = of_parse_phandle(np, "gpr", 0);  in fsl_mqs_probe()
202 			dev_err(&pdev->dev, "failed to get gpr node by phandle\n");  in fsl_mqs_probe()
203 			return -EINVAL;  in fsl_mqs_probe()
206 		mqs_priv->regmap = syscon_node_to_regmap(gpr_np);  in fsl_mqs_probe()
207 		if (IS_ERR(mqs_priv->regmap)) {  in fsl_mqs_probe()
208 			dev_err(&pdev->dev, "failed to get gpr regmap\n");  in fsl_mqs_probe()
209 			ret = PTR_ERR(mqs_priv->regmap);  in fsl_mqs_probe()
217 		mqs_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,  in fsl_mqs_probe()
221 		if (IS_ERR(mqs_priv->regmap)) {  in fsl_mqs_probe()
222 			dev_err(&pdev->dev, "failed to init regmap: %ld\n",  in fsl_mqs_probe()
223 				PTR_ERR(mqs_priv->regmap));  in fsl_mqs_probe()
224 			return PTR_ERR(mqs_priv->regmap);  in fsl_mqs_probe()
227 		mqs_priv->ipg = devm_clk_get(&pdev->dev, "core");  in fsl_mqs_probe()
228 		if (IS_ERR(mqs_priv->ipg)) {  in fsl_mqs_probe()
229 			dev_err(&pdev->dev, "failed to get the clock: %ld\n",  in fsl_mqs_probe()
230 				PTR_ERR(mqs_priv->ipg));  in fsl_mqs_probe()
231 			return PTR_ERR(mqs_priv->ipg);  in fsl_mqs_probe()
235 	mqs_priv->mclk = devm_clk_get(&pdev->dev, "mclk");  in fsl_mqs_probe()
236 	if (IS_ERR(mqs_priv->mclk)) {  in fsl_mqs_probe()
237 		dev_err(&pdev->dev, "failed to get the clock: %ld\n",  in fsl_mqs_probe()
238 			PTR_ERR(mqs_priv->mclk));  in fsl_mqs_probe()
239 		ret = PTR_ERR(mqs_priv->mclk);  in fsl_mqs_probe()
243 	dev_set_drvdata(&pdev->dev, mqs_priv);  in fsl_mqs_probe()
244 	pm_runtime_enable(&pdev->dev);  in fsl_mqs_probe()
246 	ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_fsl_mqs,  in fsl_mqs_probe()
260 	pm_runtime_disable(&pdev->dev);  in fsl_mqs_remove()
270 	ret = clk_prepare_enable(mqs_priv->ipg);  in fsl_mqs_runtime_resume()
276 	ret = clk_prepare_enable(mqs_priv->mclk);  in fsl_mqs_runtime_resume()
279 		clk_disable_unprepare(mqs_priv->ipg);  in fsl_mqs_runtime_resume()
283 	if (mqs_priv->use_gpr)  in fsl_mqs_runtime_resume()
284 		regmap_write(mqs_priv->regmap, IOMUXC_GPR2,  in fsl_mqs_runtime_resume()
285 			     mqs_priv->reg_iomuxc_gpr2);  in fsl_mqs_runtime_resume()
287 		regmap_write(mqs_priv->regmap, REG_MQS_CTRL,  in fsl_mqs_runtime_resume()
288 			     mqs_priv->reg_mqs_ctrl);  in fsl_mqs_runtime_resume()
296 	if (mqs_priv->use_gpr)  in fsl_mqs_runtime_suspend()
297 		regmap_read(mqs_priv->regmap, IOMUXC_GPR2,  in fsl_mqs_runtime_suspend()
298 			    &mqs_priv->reg_iomuxc_gpr2);  in fsl_mqs_runtime_suspend()
300 		regmap_read(mqs_priv->regmap, REG_MQS_CTRL,  in fsl_mqs_runtime_suspend()
301 			    &mqs_priv->reg_mqs_ctrl);  in fsl_mqs_runtime_suspend()
303 	clk_disable_unprepare(mqs_priv->mclk);  in fsl_mqs_runtime_suspend()
304 	clk_disable_unprepare(mqs_priv->ipg);  in fsl_mqs_runtime_suspend()
319 	{ .compatible = "fsl,imx8qm-mqs", },
320 	{ .compatible = "fsl,imx6sx-mqs", },
329 		.name	= "fsl-mqs",
340 MODULE_ALIAS("platform: fsl-mqs");