Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) // Copyright 2020 Google LLC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/platform_data/cros_ec_proto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/regulator/machine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/regulator/of_regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) struct cros_ec_regulator_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	struct regulator_desc desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	struct regulator_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	struct cros_ec_device *ec_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	u32 index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	u16 *voltages_mV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	u16 num_voltages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) static int cros_ec_cmd(struct cros_ec_device *ec, u32 version, u32 command,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 		       void *outdata, u32 outsize, void *indata, u32 insize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	struct cros_ec_command *msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	msg = kzalloc(sizeof(*msg) + max(outsize, insize), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	if (!msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	msg->version = version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	msg->command = command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	msg->outsize = outsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	msg->insize = insize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	if (outdata && outsize > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		memcpy(msg->data, outdata, outsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	ret = cros_ec_cmd_xfer_status(ec, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		goto cleanup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	if (insize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		memcpy(indata, msg->data, insize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) cleanup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	kfree(msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) static int cros_ec_regulator_enable(struct regulator_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	struct cros_ec_regulator_data *data = rdev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	struct ec_params_regulator_enable cmd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		.index = data->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		.enable = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	return cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_ENABLE, &cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 			  sizeof(cmd), NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) static int cros_ec_regulator_disable(struct regulator_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	struct cros_ec_regulator_data *data = rdev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	struct ec_params_regulator_enable cmd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		.index = data->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		.enable = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	return cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_ENABLE, &cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			  sizeof(cmd), NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) static int cros_ec_regulator_is_enabled(struct regulator_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	struct cros_ec_regulator_data *data = rdev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	struct ec_params_regulator_is_enabled cmd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		.index = data->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	struct ec_response_regulator_is_enabled resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	ret = cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_IS_ENABLED, &cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 			  sizeof(cmd), &resp, sizeof(resp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	return resp.enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) static int cros_ec_regulator_list_voltage(struct regulator_dev *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 					  unsigned int selector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	struct cros_ec_regulator_data *data = rdev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	if (selector >= data->num_voltages)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	return data->voltages_mV[selector] * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static int cros_ec_regulator_get_voltage(struct regulator_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	struct cros_ec_regulator_data *data = rdev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct ec_params_regulator_get_voltage cmd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		.index = data->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	struct ec_response_regulator_get_voltage resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	ret = cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_GET_VOLTAGE, &cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 			  sizeof(cmd), &resp, sizeof(resp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	return resp.voltage_mv * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int cros_ec_regulator_set_voltage(struct regulator_dev *dev, int min_uV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 					 int max_uV, unsigned int *selector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	struct cros_ec_regulator_data *data = rdev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	int min_mV = DIV_ROUND_UP(min_uV, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	int max_mV = max_uV / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	struct ec_params_regulator_set_voltage cmd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		.index = data->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		.min_mv = min_mV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		.max_mv = max_mV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	 * This can happen when the given range [min_uV, max_uV] doesn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	 * contain any voltage that can be represented exactly in mV.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	if (min_mV > max_mV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	return cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_SET_VOLTAGE, &cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 			   sizeof(cmd), NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static const struct regulator_ops cros_ec_regulator_voltage_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	.enable = cros_ec_regulator_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	.disable = cros_ec_regulator_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	.is_enabled = cros_ec_regulator_is_enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	.list_voltage = cros_ec_regulator_list_voltage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	.get_voltage = cros_ec_regulator_get_voltage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	.set_voltage = cros_ec_regulator_set_voltage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static int cros_ec_regulator_init_info(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 				       struct cros_ec_regulator_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	struct ec_params_regulator_get_info cmd = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		.index = data->index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	struct ec_response_regulator_get_info resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	ret = cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_GET_INFO, &cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			   sizeof(cmd), &resp, sizeof(resp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	data->num_voltages =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		min_t(u16, ARRAY_SIZE(resp.voltages_mv), resp.num_voltages);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	data->voltages_mV =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		devm_kmemdup(dev, resp.voltages_mv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 			     sizeof(u16) * data->num_voltages, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	if (!data->voltages_mV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	data->desc.n_voltages = data->num_voltages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	/* Make sure the returned name is always a valid string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	resp.name[ARRAY_SIZE(resp.name) - 1] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	data->desc.name = devm_kstrdup(dev, resp.name, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	if (!data->desc.name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int cros_ec_regulator_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	struct device_node *np = dev->of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	struct cros_ec_regulator_data *drvdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct regulator_init_data *init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	struct regulator_config cfg = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	struct regulator_desc *desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	drvdata = devm_kzalloc(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		&pdev->dev, sizeof(struct cros_ec_regulator_data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	if (!drvdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	drvdata->ec_dev = dev_get_drvdata(dev->parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	desc = &drvdata->desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	init_data = of_get_regulator_init_data(dev, np, desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	if (!init_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	ret = of_property_read_u32(np, "reg", &drvdata->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	desc->owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	desc->type = REGULATOR_VOLTAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	desc->ops = &cros_ec_regulator_voltage_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	ret = cros_ec_regulator_init_info(dev, drvdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	cfg.dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	cfg.init_data = init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	cfg.driver_data = drvdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	cfg.of_node = np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	drvdata->dev = devm_regulator_register(dev, &drvdata->desc, &cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	if (IS_ERR(drvdata->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		ret = PTR_ERR(drvdata->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	platform_set_drvdata(pdev, drvdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static const struct of_device_id regulator_cros_ec_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	{ .compatible = "google,cros-ec-regulator", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	{}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) MODULE_DEVICE_TABLE(of, regulator_cros_ec_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) static struct platform_driver cros_ec_regulator_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	.probe		= cros_ec_regulator_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		.name		= "cros-ec-regulator",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		.of_match_table = regulator_cros_ec_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) module_platform_driver(cros_ec_regulator_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) MODULE_DESCRIPTION("ChromeOS EC controlled regulator");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) MODULE_AUTHOR("Pi-Hsun Shih <pihsun@chromium.org>");