Merge tag 'v5.8-rc3' into dev-main-5.9

Linux 5.8-rc3

Change-Id: Ie053381bcc551ded4bbbeed07bc33e284f921771

sound/soc/tegra/tegra_asoc_utils.c

@@ -15,6 +15,20 @@
 
 #include "tegra_asoc_utils.h"
 
+/*
+ * this will be used for platforms from Tegra210 onwards.
+ * odd rates: sample rates multiple of 11.025kHz
+ * even_rates: sample rates multiple of 8kHz
+ */
+enum rate_type {
+	ODD_RATE,
+	EVEN_RATE,
+	NUM_RATE_TYPE,
+};
+unsigned int tegra210_pll_base_rate[NUM_RATE_TYPE] = {338688000, 368640000};
+unsigned int tegra186_pll_base_rate[NUM_RATE_TYPE] = {270950400, 245760000};
+unsigned int default_pll_out_rate[NUM_RATE_TYPE] = {45158400, 49152000};
+
 int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
 			      int mclk)
 {
@@ -59,25 +73,47 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
 	data->set_baseclock = 0;
 	data->set_mclk = 0;
 
+<<<<<<< HEAD
+	clk_disable_unprepare(data->clk_aud_mclk);
+	clk_disable_unprepare(data->clk_pll_out);
+	clk_disable_unprepare(data->clk_pll);
+=======
 	clk_disable_unprepare(data->clk_cdev1);
+>>>>>>> v5.8-rc3
 
-	err = clk_set_rate(data->clk_pll_a, new_baseclock);
+	err = clk_set_rate(data->clk_pll, new_baseclock);
 	if (err) {
-		dev_err(data->dev, "Can't set pll_a rate: %d\n", err);
+		dev_err(data->dev, "Can't set base pll rate: %d\n", err);
 		return err;
 	}
 
-	err = clk_set_rate(data->clk_pll_a_out0, mclk);
+	err = clk_set_rate(data->clk_pll_out, mclk);
 	if (err) {
-		dev_err(data->dev, "Can't set pll_a_out0 rate: %d\n", err);
+		dev_err(data->dev, "Can't set pll_out rate: %d\n", err);
 		return err;
 	}
 
-	/* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
+	/* Don't set cdev1/extern1 rate; it's locked to pll_out */
 
+<<<<<<< HEAD
+	err = clk_prepare_enable(data->clk_pll);
+	if (err) {
+		dev_err(data->dev, "Can't enable pll: %d\n", err);
+		return err;
+	}
+
+	err = clk_prepare_enable(data->clk_pll_out);
+	if (err) {
+		dev_err(data->dev, "Can't enable pll_out: %d\n", err);
+		return err;
+	}
+
+	err = clk_prepare_enable(data->clk_aud_mclk);
+=======
 	err = clk_prepare_enable(data->clk_cdev1);
+>>>>>>> v5.8-rc3
 	if (err) {
-		dev_err(data->dev, "Can't enable cdev1: %d\n", err);
+		dev_err(data->dev, "Can't enable aud_mclk: %d\n", err);
 		return err;
 	}
 
@@ -94,19 +130,25 @@ int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data *data)
 	const int ac97_rate = 24576000;
 	int err;
 
+<<<<<<< HEAD
+	clk_disable_unprepare(data->clk_aud_mclk);
+	clk_disable_unprepare(data->clk_pll_out);
+	clk_disable_unprepare(data->clk_pll);
+=======
 	clk_disable_unprepare(data->clk_cdev1);
+>>>>>>> v5.8-rc3
 
 	/*
 	 * AC97 rate is fixed at 24.576MHz and is used for both the host
 	 * controller and the external codec
 	 */
-	err = clk_set_rate(data->clk_pll_a, pll_rate);
+	err = clk_set_rate(data->clk_pll, pll_rate);
 	if (err) {
 		dev_err(data->dev, "Can't set pll_a rate: %d\n", err);
 		return err;
 	}
 
-	err = clk_set_rate(data->clk_pll_a_out0, ac97_rate);
+	err = clk_set_rate(data->clk_pll_out, ac97_rate);
 	if (err) {
 		dev_err(data->dev, "Can't set pll_a_out0 rate: %d\n", err);
 		return err;
@@ -114,7 +156,23 @@ int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data *data)
 
 	/* Don't set cdev1/extern1 rate; it's locked to pll_a_out0 */
 
+<<<<<<< HEAD
+	err = clk_prepare_enable(data->clk_pll);
+	if (err) {
+		dev_err(data->dev, "Can't enable pll_a: %d\n", err);
+		return err;
+	}
+
+	err = clk_prepare_enable(data->clk_pll_out);
+	if (err) {
+		dev_err(data->dev, "Can't enable pll_a_out0: %d\n", err);
+		return err;
+	}
+
+	err = clk_prepare_enable(data->clk_aud_mclk);
+=======
 	err = clk_prepare_enable(data->clk_cdev1);
+>>>>>>> v5.8-rc3
 	if (err) {
 		dev_err(data->dev, "Can't enable cdev1: %d\n", err);
 		return err;
@@ -127,6 +185,94 @@ int tegra_asoc_utils_set_ac97_rate(struct tegra_asoc_utils_data *data)
 }
 EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_ac97_rate);
 
+int tegra_asoc_utils_set_tegra210_rate(struct tegra_asoc_utils_data *data,
+				       unsigned int sample_rate)
+{
+	unsigned int new_pll_base, pll_out, aud_mclk = 0;
+	int err;
+
+	switch (sample_rate) {
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+	case 176400:
+		new_pll_base = data->pll_base_rate[ODD_RATE];
+		pll_out = default_pll_out_rate[ODD_RATE];
+		break;
+	case 8000:
+	case 16000:
+	case 32000:
+	case 48000:
+	case 96000:
+	case 192000:
+		new_pll_base = data->pll_base_rate[EVEN_RATE];
+		pll_out = default_pll_out_rate[EVEN_RATE];
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* reduce pll_out rate to support lower sampling rates */
+	if (sample_rate <= 11025)
+		pll_out = pll_out >> 1;
+	if (data->mclk_fs)
+		aud_mclk = sample_rate * data->mclk_fs;
+
+	if (data->set_baseclock != new_pll_base) {
+		err = clk_set_rate(data->clk_pll, new_pll_base);
+		if (err) {
+			dev_err(data->dev, "Can't set clk_pll rate: %d\n",
+				err);
+			return err;
+		}
+		data->set_baseclock = new_pll_base;
+	}
+
+	if (data->set_pll_out != pll_out) {
+		err = clk_set_rate(data->clk_pll_out, pll_out);
+		if (err) {
+			dev_err(data->dev, "Can't set clk_pll_out rate: %d\n",
+				err);
+			return err;
+		}
+		data->set_pll_out = pll_out;
+	}
+
+	if (data->set_mclk != aud_mclk) {
+		err = clk_set_rate(data->clk_aud_mclk, aud_mclk);
+		if (err) {
+			dev_err(data->dev, "Can't set clk_cdev1 rate: %d\n",
+				err);
+			return err;
+		}
+		data->set_mclk = aud_mclk;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_tegra210_rate);
+
+int tegra_asoc_utils_clk_enable(struct tegra_asoc_utils_data *data)
+{
+	int err;
+
+	err = clk_prepare_enable(data->clk_aud_mclk);
+	if (err) {
+		dev_err(data->dev, "Can't enable clock aud_mclk\n");
+		return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_clk_enable);
+
+void tegra_asoc_utils_clk_disable(struct tegra_asoc_utils_data *data)
+{
+	clk_disable_unprepare(data->clk_aud_mclk);
+}
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_clk_disable);
+
 int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
 			  struct device *dev)
 {
@@ -143,11 +289,47 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
 		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA114;
 	else if (of_machine_is_compatible("nvidia,tegra124"))
 		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA124;
+	else if (of_machine_is_compatible("nvidia,tegra210"))
+		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA210;
+	else if (of_machine_is_compatible("nvidia,tegra186"))
+		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA186;
+	else if (of_machine_is_compatible("nvidia,tegra194"))
+		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA194;
 	else {
 		dev_err(data->dev, "SoC unknown to Tegra ASoC utils\n");
 		return -EINVAL;
 	}
 
+<<<<<<< HEAD
+	data->clk_pll = devm_clk_get(dev, "pll_a");
+	if (IS_ERR(data->clk_pll)) {
+		dev_err(data->dev, "Can't retrieve clk pll_a\n");
+		return PTR_ERR(data->clk_pll);
+	}
+
+	data->clk_pll_out = devm_clk_get(dev, "pll_a_out0");
+	if (IS_ERR(data->clk_pll_out)) {
+		dev_err(data->dev, "Can't retrieve clk pll_a_out0\n");
+		return PTR_ERR(data->clk_pll_out);
+	}
+
+	data->clk_aud_mclk = devm_clk_get(dev, "extern1");
+	if (IS_ERR(data->clk_aud_mclk)) {
+		dev_err(data->dev, "Can't retrieve clk aud_mclk\n");
+		return PTR_ERR(data->clk_aud_mclk);
+	}
+
+	if (data->soc < TEGRA_ASOC_UTILS_SOC_TEGRA210) {
+		ret = tegra_asoc_utils_set_rate(data, 44100, 256 * 44100);
+		if (ret)
+			return ret;
+	}
+
+	if (data->soc < TEGRA_ASOC_UTILS_SOC_TEGRA186)
+		data->pll_base_rate = tegra210_pll_base_rate;
+	else
+		data->pll_base_rate = tegra186_pll_base_rate;
+=======
 	data->clk_pll_a = devm_clk_get(dev, "pll_a");
 	if (IS_ERR(data->clk_pll_a)) {
 		dev_err(data->dev, "Can't retrieve clk pll_a\n");
@@ -215,6 +397,7 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
 		dev_err(data->dev, "Can't enable cdev1: %d\n", ret);
 		return ret;
 	}
+>>>>>>> v5.8-rc3
 
 	return 0;
 }