diff -drupN a/drivers/misc/sunxi-rf/sunxi-bluetooth.c b/drivers/misc/sunxi-rf/sunxi-bluetooth.c
--- a/drivers/misc/sunxi-rf/sunxi-bluetooth.c	1970-01-01 03:00:00.000000000 +0300
+++ b/drivers/misc/sunxi-rf/sunxi-bluetooth.c	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,391 @@
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/of_gpio.h>
+#include <linux/clk.h>
+#include <linux/rfkill.h>
+#include <linux/regulator/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/sunxi-gpio.h>
+#include "sunxi-rfkill.h"
+
+static int sunxi_bt_on(struct sunxi_bt_platdata *data, bool on_off)
+{
+	struct platform_device *pdev = data->pdev;
+	struct device *dev = &pdev->dev;
+	int ret = 0;
+	int i = 0;
+
+	if (!on_off && gpio_is_valid(data->gpio_bt_rst))
+		gpio_set_value(data->gpio_bt_rst, 0);
+	for (i = 0; i < (data->power_num); i++) {
+		if (data->bt_power_name[i]) {
+			data->bt_power[i] =
+			    regulator_get(dev, data->bt_power_name[i]);
+			if (!IS_ERR(data->bt_power[i])) {
+				if (on_off) {
+					ret =
+					    regulator_enable(data->bt_power[i]);
+					if (ret < 0) {
+						dev_err(dev,
+							"regulator bt_power enable failed\n");
+						regulator_put(data->bt_power
+							      [i]);
+						return ret;
+					}
+
+					ret =
+					    regulator_get_voltage(data->bt_power
+								  [i]);
+					if (ret < 0) {
+						dev_err(dev,
+							"regulator bt_power get voltage failed\n");
+						regulator_put(data->bt_power
+							      [i]);
+						return ret;
+					}
+					dev_info(dev,
+						 "current check wlan bt_power voltage: %d\n",
+						 ret);
+					if (ret < data->bt_power_voltage) {
+						ret =
+						    regulator_set_voltage(data->
+									  bt_power
+									  [i],
+									  data->
+									  bt_power_voltage,
+									  data->
+									  bt_power_voltage);
+						dev_info(dev,
+							 "set wlan bt_power voltage: %d\n",
+							 data->
+							 bt_power_voltage);
+					}
+				} else {
+					ret =
+					    regulator_disable(data->bt_power
+							      [i]);
+					if (ret < 0) {
+						dev_err(dev,
+							"regulator bt_power disable failed\n");
+						regulator_put(data->bt_power
+							      [i]);
+						return ret;
+					}
+				}
+				regulator_put(data->bt_power[i]);
+			}
+		}
+	}
+
+	if (data->io_regulator_name) {
+		data->io_regulator =
+		    regulator_get(dev, data->io_regulator_name);
+		if (!IS_ERR(data->io_regulator)) {
+			if (on_off) {
+				ret = regulator_enable(data->io_regulator);
+				if (ret < 0) {
+					dev_err(dev,
+						"regulator io_regulator enable failed\n");
+					regulator_put(data->io_regulator);
+					return ret;
+				}
+
+				ret = regulator_get_voltage(data->io_regulator);
+				if (ret < 0) {
+					dev_err(dev,
+						"regulator io_regulator get voltage failed\n");
+					regulator_put(data->io_regulator);
+					return ret;
+				}
+
+				dev_info(dev,
+					 "current check bt io regulator voltage: %d\n",
+					 ret);
+				if (ret < data->bt_io_voltage) {
+					ret =
+					    regulator_set_voltage(data->
+								  io_regulator,
+								  data->
+								  bt_io_voltage,
+								  data->
+								  bt_io_voltage);
+					dev_info(dev,
+						 "set bt io regulator voltage: %d\n",
+						 data->bt_io_voltage);
+				}
+
+			} else {
+				ret = regulator_disable(data->io_regulator);
+				if (ret < 0) {
+					dev_err(dev,
+						"regulator io_regulator disable failed\n");
+					regulator_put(data->io_regulator);
+					return ret;
+				}
+			}
+			regulator_put(data->io_regulator);
+		}
+	}
+
+	if (on_off && gpio_is_valid(data->gpio_bt_rst)) {
+		mdelay(10);
+		gpio_set_value(data->gpio_bt_rst, 1);
+	}
+	data->power_state = on_off;
+
+	return 0;
+}
+
+static int sunxi_bt_set_block(void *data, bool blocked)
+{
+	struct sunxi_bt_platdata *platdata = data;
+	struct platform_device *pdev = platdata->pdev;
+	int ret;
+
+	if (blocked != platdata->power_state) {
+		dev_warn(&pdev->dev, "block state already is %d\n", blocked);
+		return 0;
+	}
+
+	dev_info(&pdev->dev, "set block: %d\n", blocked);
+	ret = sunxi_bt_on(platdata, !blocked);
+	if (ret) {
+		dev_err(&pdev->dev, "set block failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct rfkill_ops sunxi_bt_rfkill_ops = {
+	.set_block = sunxi_bt_set_block,
+};
+
+static int sunxi_bt_probe(struct platform_device *pdev)
+{
+	struct pinctrl *pinctrl;
+	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	struct sunxi_bt_platdata *data;
+	struct gpio_config config;
+	const char *power, *io_regulator, *clocks;
+	int ret = 0, i = 0, j = 0;
+	u32 val;
+	char bt_name_buf[64] = { 0 }, s[64] = {
+	0};
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	data->pdev = pdev;
+	data->power_num = -1;
+	if (!of_property_read_u32(np, "bt_power_num", &val)) {
+		switch (val) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+			data->power_num = val;
+			break;
+		default:
+			dev_err(dev, "unsupported bt_power_num (%u)\n", val);
+			return -EINVAL;
+		}
+	}
+	dev_info(dev, "bt_power_num (%u)\n", val);
+
+	data->bt_power_voltage = -1;
+	if (!of_property_read_u32(np, "bt_power_voltage", &val)) {
+		data->bt_power_voltage = val;
+		dev_err(dev, "bt power voltage (%u)\n", val);
+	}
+
+	data->bt_io_voltage = -1;
+	if (!of_property_read_u32(np, "bt_io_voltage", &val)) {
+		data->bt_io_voltage = val;
+		dev_err(dev, "bt io voltage (%u)\n", val);
+	}
+
+	data->bt_power_name =
+	    devm_kzalloc(dev, (data->power_num) * sizeof(char *), GFP_KERNEL);
+	for (i = 0; i < (data->power_num); i++) {
+		sprintf(s, "bt_power%d", i + 1);
+		strcpy(bt_name_buf, s);
+		if (of_property_read_string(np, bt_name_buf, &power)) {
+			dev_warn(dev, "Missing bt_power.\n");
+		} else {
+			data->bt_power_name[i] =
+			    devm_kzalloc(dev, 64, GFP_KERNEL);
+			if (!data->bt_power_name[i]) {
+				for (j = 0; j < i; j++)
+					devm_kfree(dev, data->bt_power_name[j]);
+
+				devm_kfree(dev, data->bt_power_name);
+				return -ENOMEM;
+			} else
+				strcpy(data->bt_power_name[i], power);
+		}
+		dev_info(dev, "bt_power_name (%s)\n", data->bt_power_name[i]);
+	}
+
+	if (of_property_read_string(np, "bt_io_regulator", &io_regulator)) {
+		dev_warn(dev, "Missing bt_io_regulator.\n");
+	} else {
+		data->io_regulator_name = devm_kzalloc(dev, 64, GFP_KERNEL);
+		if (!data->io_regulator_name) {
+			ret = -ENOMEM;
+			goto end;
+		} else
+			strcpy(data->io_regulator_name, io_regulator);
+	}
+	dev_info(dev, "io_regulator_name (%s)\n", data->io_regulator_name);
+
+	/* request device pinctrl, set as default state */
+	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	if (IS_ERR_OR_NULL(pinctrl)) {
+		dev_err(dev, "request pincrtl handle for device [%s] failed\n",
+			dev_name(&pdev->dev));
+	}
+
+	data->gpio_bt_rst =
+	    of_get_named_gpio_flags(np, "bt_rst_n", 0,
+				    (enum of_gpio_flags *)&config);
+	if (!gpio_is_valid(data->gpio_bt_rst)) {
+		dev_err(dev, "get gpio bt_rst failed\n");
+	} else {
+		dev_info(dev,
+			 "bt_rst gpio=%d  mul-sel=%d  pull=%d  drv_level=%d  data=%d\n",
+			 config.gpio, config.mul_sel, config.pull,
+			 config.drv_level, config.data);
+
+		ret = devm_gpio_request(dev, data->gpio_bt_rst, "bt_rst");
+		if (ret < 0) {
+			dev_err(dev, "can't request bt_rst gpio %d\n",
+				data->gpio_bt_rst);
+			goto end;
+		}
+
+		ret = gpio_direction_output(data->gpio_bt_rst, 0);
+		if (ret < 0) {
+			dev_err(dev,
+				"can't request output direction bt_rst gpio %d\n",
+				data->gpio_bt_rst);
+			goto end;
+		}
+	}
+
+	if (of_property_read_string(np, "clocks", &clocks)) {
+		dev_warn(dev, "Missing clocks.\n");
+	} else {
+		data->clk_name = devm_kzalloc(dev, 64, GFP_KERNEL);
+		if (!data->clk_name) {
+			ret = -ENOMEM;
+			goto end;
+		} else
+			strcpy(data->clk_name, clocks);
+	}
+	dev_info(dev, "clk_name (%s)\n", data->clk_name);
+
+	data->lpo = devm_clk_get(dev, data->clk_name);
+	if (IS_ERR_OR_NULL(data->lpo)) {
+		dev_warn(dev, "clk not config\n");
+	} else {
+		ret = clk_prepare_enable(data->lpo);
+		if (ret < 0)
+			dev_warn(dev, "can't enable clk\n");
+	}
+
+	data->rfkill = rfkill_alloc("sunxi-bt", dev, RFKILL_TYPE_BLUETOOTH,
+				    &sunxi_bt_rfkill_ops, data);
+	if (!data->rfkill) {
+		for (i = 0; i < (data->power_num); i++)
+			devm_kfree(dev, data->bt_power_name[i]);
+		devm_kfree(dev, data->bt_power_name);
+		ret = -ENOMEM;
+		goto failed_alloc;
+	}
+
+	rfkill_set_states(data->rfkill, true, false);
+
+	ret = rfkill_register(data->rfkill);
+	if (ret) {
+		for (i = 0; i < (data->power_num); i++)
+			devm_kfree(dev, data->bt_power_name[i]);
+		devm_kfree(dev, data->bt_power_name);
+		goto fail_rfkill;
+	}
+end:
+	if (ret != 0) {
+		for (i = 0; i < (data->power_num); i++)
+			devm_kfree(dev, data->bt_power_name[i]);
+		devm_kfree(dev, data->bt_power_name);
+		return ret;
+	}
+	data->bt_power =
+	    devm_kzalloc(dev, (data->power_num) * sizeof(struct regulator *),
+			 GFP_KERNEL);
+	platform_set_drvdata(pdev, data);
+
+	data->power_state = 0;
+	return 0;
+
+fail_rfkill:
+	if (data->rfkill)
+		rfkill_destroy(data->rfkill);
+failed_alloc:
+	if (!IS_ERR_OR_NULL(data->lpo))
+		clk_disable_unprepare(data->lpo);
+	return ret;
+}
+
+static int sunxi_bt_remove(struct platform_device *pdev)
+{
+	struct sunxi_bt_platdata *data = platform_get_drvdata(pdev);
+	struct rfkill *rfk = data->rfkill;
+	int i = 0;
+
+	devm_kfree(&pdev->dev, data->bt_power);
+	for (i = 0; i < (data->power_num); i++)
+		devm_kfree(&pdev->dev, data->bt_power_name[i]);
+	devm_kfree(&pdev->dev, data->bt_power_name);
+
+	platform_set_drvdata(pdev, NULL);
+
+	if (rfk) {
+		rfkill_unregister(rfk);
+		rfkill_destroy(rfk);
+	}
+
+	if (!IS_ERR_OR_NULL(data->lpo))
+		clk_disable_unprepare(data->lpo);
+
+	return 0;
+}
+
+static const struct of_device_id sunxi_bt_ids[] = {
+	{.compatible = "allwinner,sunxi-bt"},
+	{ /* Sentinel */ }
+};
+
+static struct platform_driver sunxi_bt_driver = {
+	.probe = sunxi_bt_probe,
+	.remove = sunxi_bt_remove,
+	.driver = {
+		   .owner = THIS_MODULE,
+		   .name = "sunxi-bt",
+		   .of_match_table = sunxi_bt_ids,
+		   },
+};
+
+module_platform_driver(sunxi_bt_driver);
+
+MODULE_DESCRIPTION("sunxi bluetooth driver");
+MODULE_LICENSE("GPL");