[people/ms/u-boot.git] / cmd / regulator.c

/*
 * Copyright (C) 2014-2015 Samsung Electronics
 * Przemyslaw Marczak <p.marczak@samsung.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#include <common.h>
#include <errno.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#include <power/regulator.h>

#define LIMIT_DEVNAME	20
#define LIMIT_OFNAME	32
#define LIMIT_INFO	18

static struct udevice *currdev;

static int failure(int ret)
{
	printf("Error: %d (%s)\n", ret, errno_str(ret));

	return CMD_RET_FAILURE;
}

static int do_dev(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct dm_regulator_uclass_platdata *uc_pdata;
	const char *name;
	int ret = -ENXIO;

	switch (argc) {
	case 2:
		name = argv[1];
		ret = regulator_get_by_platname(name, &currdev);
		if (ret) {
			printf("Can't get the regulator: %s!\n", name);
			return failure(ret);
		}
	case 1:
		if (!currdev) {
			printf("Regulator device is not set!\n\n");
			return CMD_RET_USAGE;
		}

		uc_pdata = dev_get_uclass_platdata(currdev);
		if (!uc_pdata) {
			printf("%s: no regulator platform data!\n", currdev->name);
			return failure(ret);
		}

		printf("dev: %s @ %s\n", uc_pdata->name, currdev->name);
	}

	return CMD_RET_SUCCESS;
}

static int curr_dev_and_platdata(struct udevice **devp,
				 struct dm_regulator_uclass_platdata **uc_pdata,
				 bool allow_type_fixed)
{
	*devp = NULL;
	*uc_pdata = NULL;

	if (!currdev) {
		printf("First, set the regulator device!\n");
		return CMD_RET_FAILURE;
	}

	*devp = currdev;

	*uc_pdata = dev_get_uclass_platdata(*devp);
	if (!*uc_pdata) {
		pr_err("Regulator: %s - missing platform data!", currdev->name);
		return CMD_RET_FAILURE;
	}

	if (!allow_type_fixed && (*uc_pdata)->type == REGULATOR_TYPE_FIXED) {
		printf("Operation not allowed for fixed regulator!\n");
		return CMD_RET_FAILURE;
	}

	return CMD_RET_SUCCESS;
}

static int do_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct dm_regulator_uclass_platdata *uc_pdata;
	struct udevice *dev;
	int ret;

	printf("| %-*.*s| %-*.*s| %s\n",
	       LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
	       LIMIT_OFNAME, LIMIT_OFNAME, "regulator-name",
	       "Parent");

	for (ret = uclass_find_first_device(UCLASS_REGULATOR, &dev); dev;
	     ret = uclass_find_next_device(&dev)) {
		if (ret)
			continue;

		uc_pdata = dev_get_uclass_platdata(dev);
		printf("| %-*.*s| %-*.*s| %s\n",
		       LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name,
		       LIMIT_OFNAME, LIMIT_OFNAME, uc_pdata->name,
		       dev->parent->name);
	}

	return ret;
}

static int constraint(const char *name, int val, const char *val_name)
{
	printf("%-*s", LIMIT_INFO, name);
	if (val < 0) {
		printf(" %s (err: %d)\n", errno_str(val), val);
		return val;
	}

	if (val_name)
		printf(" %d (%s)\n", val, val_name);
	else
		printf(" %d\n", val);

	return 0;
}

static const char *get_mode_name(struct dm_regulator_mode *mode,
				 int mode_count,
				 int mode_id)
{
	while (mode_count--) {
		if (mode->id == mode_id)
			return mode->name;
		mode++;
	}

	return NULL;
}

static int do_info(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct udevice *dev;
	struct dm_regulator_uclass_platdata *uc_pdata;
	struct dm_regulator_mode *modes;
	const char *parent_uc;
	int mode_count;
	int ret;
	int i;

	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
	if (ret)
		return ret;

	parent_uc = dev_get_uclass_name(dev->parent);

	printf("%s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s %s\n%-*s\n",
	       "Regulator info:",
	       LIMIT_INFO, "* regulator-name:", uc_pdata->name,
	       LIMIT_INFO, "* device name:", dev->name,
	       LIMIT_INFO, "* parent name:", dev->parent->name,
	       LIMIT_INFO, "* parent uclass:", parent_uc,
	       LIMIT_INFO, "* constraints:");

	constraint("  - min uV:", uc_pdata->min_uV, NULL);
	constraint("  - max uV:", uc_pdata->max_uV, NULL);
	constraint("  - min uA:", uc_pdata->min_uA, NULL);
	constraint("  - max uA:", uc_pdata->max_uA, NULL);
	constraint("  - always on:", uc_pdata->always_on,
		   uc_pdata->always_on ? "true" : "false");
	constraint("  - boot on:", uc_pdata->boot_on,
		   uc_pdata->boot_on ? "true" : "false");

	mode_count = regulator_mode(dev, &modes);
	constraint("* op modes:", mode_count, NULL);

	for (i = 0; i < mode_count; i++, modes++)
		constraint("  - mode id:", modes->id, modes->name);

	return CMD_RET_SUCCESS;
}

static void do_status_detail(struct udevice *dev,
			     struct dm_regulator_uclass_platdata *uc_pdata)
{
	int current, value, mode;
	const char *mode_name;
	bool enabled;

	printf("Regulator %s status:\n", uc_pdata->name);

	enabled = regulator_get_enable(dev);
	constraint(" * enable:", enabled, enabled ? "true" : "false");

	value = regulator_get_value(dev);
	constraint(" * value uV:", value, NULL);

	current = regulator_get_current(dev);
	constraint(" * current uA:", current, NULL);

	mode = regulator_get_mode(dev);
	mode_name = get_mode_name(uc_pdata->mode, uc_pdata->mode_count, mode);
	constraint(" * mode id:", mode, mode_name);
}

static void do_status_line(struct udevice *dev)
{
	struct dm_regulator_uclass_platdata *pdata;
	int current, value, mode;
	const char *mode_name;
	bool enabled;

	pdata = dev_get_uclass_platdata(dev);
	enabled = regulator_get_enable(dev);
	value = regulator_get_value(dev);
	current = regulator_get_current(dev);
	mode = regulator_get_mode(dev);
	mode_name = get_mode_name(pdata->mode, pdata->mode_count, mode);
	printf("%-20s %-10s ", pdata->name, enabled ? "enabled" : "disabled");
	if (value >= 0)
		printf("%10d ", value);
	else
		printf("%10s ", "-");
	if (current >= 0)
		printf("%10d ", current);
	else
		printf("%10s ", "-");
	if (mode >= 0)
		printf("%-10s", mode_name);
	else
		printf("%-10s", "-");
	printf("\n");
}

static int do_status(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct dm_regulator_uclass_platdata *uc_pdata;
	struct udevice *dev;
	int ret;

	if (currdev && (argc < 2 || strcmp(argv[1], "-a"))) {
		ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
		if (ret)
			return CMD_RET_FAILURE;
		do_status_detail(dev, uc_pdata);
		return 0;
	}

	/* Show all of them in a list, probing them as needed */
	printf("%-20s %-10s %10s %10s %-10s\n", "Name", "Enabled", "uV", "mA",
	       "Mode");
	for (ret = uclass_first_device(UCLASS_REGULATOR, &dev); dev;
	     ret = uclass_next_device(&dev))
		do_status_line(dev);

	return CMD_RET_SUCCESS;
}

static int do_value(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct udevice *dev;
	struct dm_regulator_uclass_platdata *uc_pdata;
	int value;
	int force;
	int ret;

	ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
	if (ret)
		return ret;

	if (argc == 1) {
		ret = regulator_get_value(dev);
		if (ret < 0) {
			printf("Regulator: %s - can't get the Voltage!\n",
			       uc_pdata->name);
			return failure(ret);
		}

		printf("%d uV\n", ret);
		return CMD_RET_SUCCESS;
	}

	if (argc == 3)
		force = !strcmp("-f", argv[2]);
	else
		force = 0;

	value = simple_strtoul(argv[1], NULL, 0);
	if ((value < uc_pdata->min_uV || value > uc_pdata->max_uV) && !force) {
		printf("Value exceeds regulator constraint limits %d..%d uV\n",
		       uc_pdata->min_uV, uc_pdata->max_uV);
		return CMD_RET_FAILURE;
	}

	if (!force)
		ret = regulator_set_value(dev, value);
	else
		ret = regulator_set_value_force(dev, value);
	if (ret) {
		printf("Regulator: %s - can't set the Voltage!\n",
		       uc_pdata->name);
		return failure(ret);
	}

	return CMD_RET_SUCCESS;
}

static int do_current(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct udevice *dev;
	struct dm_regulator_uclass_platdata *uc_pdata;
	int current;
	int ret;

	ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
	if (ret)
		return ret;

	if (argc == 1) {
		ret = regulator_get_current(dev);
		if (ret < 0) {
			printf("Regulator: %s - can't get the Current!\n",
			       uc_pdata->name);
			return failure(ret);
		}

		printf("%d uA\n", ret);
		return CMD_RET_SUCCESS;
	}

	current = simple_strtoul(argv[1], NULL, 0);
	if (current < uc_pdata->min_uA || current > uc_pdata->max_uA) {
		printf("Current exceeds regulator constraint limits\n");
		return CMD_RET_FAILURE;
	}

	ret = regulator_set_current(dev, current);
	if (ret) {
		printf("Regulator: %s - can't set the Current!\n",
		       uc_pdata->name);
		return failure(ret);
	}

	return CMD_RET_SUCCESS;
}

static int do_mode(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct udevice *dev;
	struct dm_regulator_uclass_platdata *uc_pdata;
	int mode;
	int ret;

	ret = curr_dev_and_platdata(&dev, &uc_pdata, false);
	if (ret)
		return ret;

	if (argc == 1) {
		ret = regulator_get_mode(dev);
		if (ret < 0) {
			printf("Regulator: %s - can't get the operation mode!\n",
			       uc_pdata->name);
			return failure(ret);
		}

		printf("mode id: %d\n", ret);
		return CMD_RET_SUCCESS;
	}

	mode = simple_strtoul(argv[1], NULL, 0);

	ret = regulator_set_mode(dev, mode);
	if (ret) {
		printf("Regulator: %s - can't set the operation mode!\n",
		       uc_pdata->name);
		return failure(ret);
	}

	return CMD_RET_SUCCESS;
}

static int do_enable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct udevice *dev;
	struct dm_regulator_uclass_platdata *uc_pdata;
	int ret;

	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
	if (ret)
		return ret;

	ret = regulator_set_enable(dev, true);
	if (ret) {
		printf("Regulator: %s - can't enable!\n", uc_pdata->name);
		return failure(ret);
	}

	return CMD_RET_SUCCESS;
}

static int do_disable(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	struct udevice *dev;
	struct dm_regulator_uclass_platdata *uc_pdata;
	int ret;

	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
	if (ret)
		return ret;

	ret = regulator_set_enable(dev, false);
	if (ret) {
		printf("Regulator: %s - can't disable!\n", uc_pdata->name);
		return failure(ret);
	}

	return CMD_RET_SUCCESS;
}

static cmd_tbl_t subcmd[] = {
	U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""),
	U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
	U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""),
	U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""),
	U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""),
	U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""),
	U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""),
	U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""),
	U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""),
};

static int do_regulator(cmd_tbl_t *cmdtp, int flag, int argc,
			char * const argv[])
{
	cmd_tbl_t *cmd;

	argc--;
	argv++;

	cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd));
	if (cmd == NULL || argc > cmd->maxargs)
		return CMD_RET_USAGE;

	return cmd->cmd(cmdtp, flag, argc, argv);
}

U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator,
	"uclass operations",
	"list             - list UCLASS regulator devices\n"
	"regulator dev [regulator-name] - show/[set] operating regulator device\n"
	"regulator info                 - print constraints info\n"
	"regulator status [-a]          - print operating status [for all]\n"
	"regulator value [val] [-f]     - print/[set] voltage value [uV] (force)\n"
	"regulator current [val]        - print/[set] current value [uA]\n"
	"regulator mode [id]            - print/[set] operating mode id\n"
	"regulator enable               - enable the regulator output\n"
	"regulator disable              - disable the regulator output\n"
);
Commit	Line	Data
6262b72b PM	1	/*
	2	* Copyright (C) 2014-2015 Samsung Electronics
	3	* Przemyslaw Marczak <p.marczak@samsung.com>
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7	#include <common.h>
	8	#include <errno.h>
	9	#include <dm.h>
	10	#include <dm/uclass-internal.h>
	11	#include <power/regulator.h>
	12
6262b72b	13	#define LIMIT_DEVNAME 20
e09b2a02 PM	14	#define LIMIT_OFNAME 32
e09b2a02 PM	15	#define LIMIT_INFO 18
6262b72b PM	16
	17	static struct udevice *currdev;
	18
e09b2a02	19	static int failure(int ret)
6262b72b	20	{
e09b2a02	21	printf("Error: %d (%s)\n", ret, errno_str(ret));
6262b72b	22
e09b2a02	23	return CMD_RET_FAILURE;
6262b72b PM	24	}
	25
	26	static int do_dev(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	27	{
	28	struct dm_regulator_uclass_platdata *uc_pdata;
e09b2a02 PM	29	const char *name;
e09b2a02 PM	30	int ret = -ENXIO;
6262b72b PM	31
	32	switch (argc) {
	33	case 2:
e09b2a02 PM	34	name = argv[1];
	35	ret = regulator_get_by_platname(name, &currdev);
	36	if (ret) {
	37	printf("Can't get the regulator: %s!\n", name);
	38	return failure(ret);
	39	}
6262b72b	40	case 1:
e09b2a02 PM	41	if (!currdev) {
	42	printf("Regulator device is not set!\n\n");
	43	return CMD_RET_USAGE;
	44	}
	45
6262b72b	46	uc_pdata = dev_get_uclass_platdata(currdev);
e09b2a02 PM	47	if (!uc_pdata) {
	48	printf("%s: no regulator platform data!\n", currdev->name);
	49	return failure(ret);
	50	}
6262b72b	51
e09b2a02	52	printf("dev: %s @ %s\n", uc_pdata->name, currdev->name);
6262b72b PM	53	}
	54
	55	return CMD_RET_SUCCESS;
6262b72b PM	56	}
6262b72b PM	57
e09b2a02 PM	58	static int curr_dev_and_platdata(struct udevice **devp,
	59	struct dm_regulator_uclass_platdata **uc_pdata,
	60	bool allow_type_fixed)
6262b72b PM	61	{
	62	*devp = NULL;
	63	*uc_pdata = NULL;
	64
e09b2a02 PM	65	if (!currdev) {
	66	printf("First, set the regulator device!\n");
	67	return CMD_RET_FAILURE;
	68	}
6262b72b PM	69
	70	*devp = currdev;
	71
	72	uc_pdata = dev_get_uclass_platdata(devp);
e09b2a02	73	if (!*uc_pdata) {
9b643e31	74	pr_err("Regulator: %s - missing platform data!", currdev->name);
e09b2a02 PM	75	return CMD_RET_FAILURE;
e09b2a02 PM	76	}
6262b72b PM	77
	78	if (!allow_type_fixed && (*uc_pdata)->type == REGULATOR_TYPE_FIXED) {
	79	printf("Operation not allowed for fixed regulator!\n");
	80	return CMD_RET_FAILURE;
	81	}
	82
	83	return CMD_RET_SUCCESS;
	84	}
	85
	86	static int do_list(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	87	{
e09b2a02 PM	88	struct dm_regulator_uclass_platdata *uc_pdata;
e09b2a02 PM	89	struct udevice *dev;
6262b72b PM	90	int ret;
6262b72b PM	91
e09b2a02 PM	92	printf("\| %-.s\| %-.s\| %s\n",
	93	LIMIT_DEVNAME, LIMIT_DEVNAME, "Device",
	94	LIMIT_OFNAME, LIMIT_OFNAME, "regulator-name",
	95	"Parent");
6262b72b	96
e09b2a02 PM	97	for (ret = uclass_find_first_device(UCLASS_REGULATOR, &dev); dev;
	98	ret = uclass_find_next_device(&dev)) {
	99	if (ret)
	100	continue;
6262b72b	101
e09b2a02 PM	102	uc_pdata = dev_get_uclass_platdata(dev);
	103	printf("\| %-.s\| %-.s\| %s\n",
	104	LIMIT_DEVNAME, LIMIT_DEVNAME, dev->name,
	105	LIMIT_OFNAME, LIMIT_OFNAME, uc_pdata->name,
	106	dev->parent->name);
	107	}
	108
	109	return ret;
6262b72b PM	110	}
	111
	112	static int constraint(const char name, int val, const char val_name)
	113	{
	114	printf("%-*s", LIMIT_INFO, name);
	115	if (val < 0) {
	116	printf(" %s (err: %d)\n", errno_str(val), val);
	117	return val;
	118	}
	119
	120	if (val_name)
	121	printf(" %d (%s)\n", val, val_name);
	122	else
	123	printf(" %d\n", val);
	124
	125	return 0;
	126	}
	127
	128	static const char get_mode_name(struct dm_regulator_mode mode,
	129	int mode_count,
	130	int mode_id)
	131	{
	132	while (mode_count--) {
	133	if (mode->id == mode_id)
	134	return mode->name;
	135	mode++;
	136	}
	137
	138	return NULL;
	139	}
	140
	141	static int do_info(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	142	{
	143	struct udevice *dev;
	144	struct dm_regulator_uclass_platdata *uc_pdata;
	145	struct dm_regulator_mode *modes;
	146	const char *parent_uc;
	147	int mode_count;
	148	int ret;
	149	int i;
	150
e09b2a02	151	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
6262b72b PM	152	if (ret)
	153	return ret;
	154
	155	parent_uc = dev_get_uclass_name(dev->parent);
	156
e09b2a02 PM	157	printf("%s\n%-s %s\n%-s %s\n%-s %s\n%-s %s\n%-*s\n",
	158	"Regulator info:",
	159	LIMIT_INFO, "* regulator-name:", uc_pdata->name,
	160	LIMIT_INFO, "* device name:", dev->name,
	161	LIMIT_INFO, "* parent name:", dev->parent->name,
	162	LIMIT_INFO, "* parent uclass:", parent_uc,
6262b72b PM	163	LIMIT_INFO, "* constraints:");
	164
	165	constraint(" - min uV:", uc_pdata->min_uV, NULL);
	166	constraint(" - max uV:", uc_pdata->max_uV, NULL);
	167	constraint(" - min uA:", uc_pdata->min_uA, NULL);
	168	constraint(" - max uA:", uc_pdata->max_uA, NULL);
	169	constraint(" - always on:", uc_pdata->always_on,
	170	uc_pdata->always_on ? "true" : "false");
	171	constraint(" - boot on:", uc_pdata->boot_on,
	172	uc_pdata->boot_on ? "true" : "false");
	173
	174	mode_count = regulator_mode(dev, &modes);
	175	constraint("* op modes:", mode_count, NULL);
	176
	177	for (i = 0; i < mode_count; i++, modes++)
	178	constraint(" - mode id:", modes->id, modes->name);
	179
	180	return CMD_RET_SUCCESS;
	181	}
	182
931b24c5 SG	183	static void do_status_detail(struct udevice *dev,
931b24c5 SG	184	struct dm_regulator_uclass_platdata *uc_pdata)
6262b72b	185	{
931b24c5 SG	186	int current, value, mode;
931b24c5 SG	187	const char *mode_name;
6262b72b PM	188	bool enabled;
6262b72b PM	189
e09b2a02 PM	190	printf("Regulator %s status:\n", uc_pdata->name);
e09b2a02 PM	191
6262b72b PM	192	enabled = regulator_get_enable(dev);
	193	constraint(" * enable:", enabled, enabled ? "true" : "false");
	194
	195	value = regulator_get_value(dev);
	196	constraint(" * value uV:", value, NULL);
	197
	198	current = regulator_get_current(dev);
	199	constraint(" * current uA:", current, NULL);
	200
	201	mode = regulator_get_mode(dev);
	202	mode_name = get_mode_name(uc_pdata->mode, uc_pdata->mode_count, mode);
	203	constraint(" * mode id:", mode, mode_name);
931b24c5 SG	204	}
	205
	206	static void do_status_line(struct udevice *dev)
	207	{
	208	struct dm_regulator_uclass_platdata *pdata;
	209	int current, value, mode;
	210	const char *mode_name;
	211	bool enabled;
	212
	213	pdata = dev_get_uclass_platdata(dev);
	214	enabled = regulator_get_enable(dev);
	215	value = regulator_get_value(dev);
	216	current = regulator_get_current(dev);
	217	mode = regulator_get_mode(dev);
	218	mode_name = get_mode_name(pdata->mode, pdata->mode_count, mode);
	219	printf("%-20s %-10s ", pdata->name, enabled ? "enabled" : "disabled");
	220	if (value >= 0)
	221	printf("%10d ", value);
	222	else
	223	printf("%10s ", "-");
	224	if (current >= 0)
	225	printf("%10d ", current);
	226	else
	227	printf("%10s ", "-");
	228	if (mode >= 0)
	229	printf("%-10s", mode_name);
	230	else
	231	printf("%-10s", "-");
	232	printf("\n");
	233	}
	234
	235	static int do_status(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	236	{
	237	struct dm_regulator_uclass_platdata *uc_pdata;
	238	struct udevice *dev;
	239	int ret;
	240
	241	if (currdev && (argc < 2 \|\| strcmp(argv[1], "-a"))) {
	242	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
	243	if (ret)
	244	return CMD_RET_FAILURE;
	245	do_status_detail(dev, uc_pdata);
	246	return 0;
	247	}
	248
	249	/* Show all of them in a list, probing them as needed */
	250	printf("%-20s %-10s %10s %10s %-10s\n", "Name", "Enabled", "uV", "mA",
	251	"Mode");
	252	for (ret = uclass_first_device(UCLASS_REGULATOR, &dev); dev;
	253	ret = uclass_next_device(&dev))
	254	do_status_line(dev);
6262b72b PM	255
	256	return CMD_RET_SUCCESS;
	257	}
	258
	259	static int do_value(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	260	{
	261	struct udevice *dev;
	262	struct dm_regulator_uclass_platdata *uc_pdata;
	263	int value;
	264	int force;
	265	int ret;
	266
e09b2a02	267	ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
6262b72b PM	268	if (ret)
	269	return ret;
	270
	271	if (argc == 1) {
e09b2a02 PM	272	ret = regulator_get_value(dev);
	273	if (ret < 0) {
	274	printf("Regulator: %s - can't get the Voltage!\n",
	275	uc_pdata->name);
	276	return failure(ret);
	277	}
6262b72b	278
e09b2a02	279	printf("%d uV\n", ret);
6262b72b PM	280	return CMD_RET_SUCCESS;
	281	}
	282
	283	if (argc == 3)
	284	force = !strcmp("-f", argv[2]);
	285	else
	286	force = 0;
	287
	288	value = simple_strtoul(argv[1], NULL, 0);
	289	if ((value < uc_pdata->min_uV \|\| value > uc_pdata->max_uV) && !force) {
224d1ddc SG	290	printf("Value exceeds regulator constraint limits %d..%d uV\n",
224d1ddc SG	291	uc_pdata->min_uV, uc_pdata->max_uV);
6262b72b PM	292	return CMD_RET_FAILURE;
	293	}
	294
2f5d532f K	295	if (!force)
	296	ret = regulator_set_value(dev, value);
	297	else
	298	ret = regulator_set_value_force(dev, value);
e09b2a02 PM	299	if (ret) {
	300	printf("Regulator: %s - can't set the Voltage!\n",
	301	uc_pdata->name);
	302	return failure(ret);
	303	}
6262b72b PM	304
	305	return CMD_RET_SUCCESS;
	306	}
	307
	308	static int do_current(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	309	{
	310	struct udevice *dev;
	311	struct dm_regulator_uclass_platdata *uc_pdata;
	312	int current;
	313	int ret;
	314
e09b2a02	315	ret = curr_dev_and_platdata(&dev, &uc_pdata, argc == 1);
6262b72b PM	316	if (ret)
	317	return ret;
	318
	319	if (argc == 1) {
e09b2a02 PM	320	ret = regulator_get_current(dev);
	321	if (ret < 0) {
	322	printf("Regulator: %s - can't get the Current!\n",
	323	uc_pdata->name);
	324	return failure(ret);
	325	}
6262b72b	326
e09b2a02	327	printf("%d uA\n", ret);
6262b72b PM	328	return CMD_RET_SUCCESS;
	329	}
	330
	331	current = simple_strtoul(argv[1], NULL, 0);
	332	if (current < uc_pdata->min_uA \|\| current > uc_pdata->max_uA) {
	333	printf("Current exceeds regulator constraint limits\n");
	334	return CMD_RET_FAILURE;
	335	}
	336
	337	ret = regulator_set_current(dev, current);
e09b2a02 PM	338	if (ret) {
	339	printf("Regulator: %s - can't set the Current!\n",
	340	uc_pdata->name);
	341	return failure(ret);
	342	}
6262b72b PM	343
	344	return CMD_RET_SUCCESS;
	345	}
	346
	347	static int do_mode(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	348	{
	349	struct udevice *dev;
	350	struct dm_regulator_uclass_platdata *uc_pdata;
6262b72b PM	351	int mode;
	352	int ret;
	353
e09b2a02	354	ret = curr_dev_and_platdata(&dev, &uc_pdata, false);
6262b72b PM	355	if (ret)
	356	return ret;
	357
	358	if (argc == 1) {
e09b2a02 PM	359	ret = regulator_get_mode(dev);
	360	if (ret < 0) {
	361	printf("Regulator: %s - can't get the operation mode!\n",
	362	uc_pdata->name);
	363	return failure(ret);
	364	}
6262b72b	365
e09b2a02	366	printf("mode id: %d\n", ret);
6262b72b PM	367	return CMD_RET_SUCCESS;
	368	}
	369
e09b2a02	370	mode = simple_strtoul(argv[1], NULL, 0);
6262b72b	371
e09b2a02 PM	372	ret = regulator_set_mode(dev, mode);
	373	if (ret) {
	374	printf("Regulator: %s - can't set the operation mode!\n",
	375	uc_pdata->name);
	376	return failure(ret);
	377	}
6262b72b PM	378
	379	return CMD_RET_SUCCESS;
	380	}
	381
	382	static int do_enable(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	383	{
	384	struct udevice *dev;
	385	struct dm_regulator_uclass_platdata *uc_pdata;
	386	int ret;
	387
e09b2a02	388	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
6262b72b PM	389	if (ret)
	390	return ret;
	391
	392	ret = regulator_set_enable(dev, true);
e09b2a02 PM	393	if (ret) {
	394	printf("Regulator: %s - can't enable!\n", uc_pdata->name);
	395	return failure(ret);
	396	}
6262b72b PM	397
	398	return CMD_RET_SUCCESS;
	399	}
	400
	401	static int do_disable(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	402	{
	403	struct udevice *dev;
	404	struct dm_regulator_uclass_platdata *uc_pdata;
	405	int ret;
	406
e09b2a02	407	ret = curr_dev_and_platdata(&dev, &uc_pdata, true);
6262b72b PM	408	if (ret)
	409	return ret;
	410
	411	ret = regulator_set_enable(dev, false);
e09b2a02 PM	412	if (ret) {
	413	printf("Regulator: %s - can't disable!\n", uc_pdata->name);
	414	return failure(ret);
	415	}
6262b72b PM	416
	417	return CMD_RET_SUCCESS;
	418	}
	419
	420	static cmd_tbl_t subcmd[] = {
	421	U_BOOT_CMD_MKENT(dev, 2, 1, do_dev, "", ""),
	422	U_BOOT_CMD_MKENT(list, 1, 1, do_list, "", ""),
	423	U_BOOT_CMD_MKENT(info, 2, 1, do_info, "", ""),
	424	U_BOOT_CMD_MKENT(status, 2, 1, do_status, "", ""),
	425	U_BOOT_CMD_MKENT(value, 3, 1, do_value, "", ""),
	426	U_BOOT_CMD_MKENT(current, 3, 1, do_current, "", ""),
	427	U_BOOT_CMD_MKENT(mode, 2, 1, do_mode, "", ""),
	428	U_BOOT_CMD_MKENT(enable, 1, 1, do_enable, "", ""),
	429	U_BOOT_CMD_MKENT(disable, 1, 1, do_disable, "", ""),
	430	};
	431
	432	static int do_regulator(cmd_tbl_t *cmdtp, int flag, int argc,
	433	char * const argv[])
	434	{
	435	cmd_tbl_t *cmd;
	436
	437	argc--;
	438	argv++;
	439
	440	cmd = find_cmd_tbl(argv[0], subcmd, ARRAY_SIZE(subcmd));
	441	if (cmd == NULL \|\| argc > cmd->maxargs)
	442	return CMD_RET_USAGE;
	443
	444	return cmd->cmd(cmdtp, flag, argc, argv);
	445	}
	446
	447	U_BOOT_CMD(regulator, CONFIG_SYS_MAXARGS, 1, do_regulator,
	448	"uclass operations",
e09b2a02 PM	449	"list - list UCLASS regulator devices\n"
	450	"regulator dev [regulator-name] - show/[set] operating regulator device\n"
	451	"regulator info - print constraints info\n"
931b24c5	452	"regulator status [-a] - print operating status [for all]\n"
e09b2a02 PM	453	"regulator value [val] [-f] - print/[set] voltage value [uV] (force)\n"
	454	"regulator current [val] - print/[set] current value [uA]\n"
	455	"regulator mode [id] - print/[set] operating mode id\n"
	456	"regulator enable - enable the regulator output\n"
	457	"regulator disable - disable the regulator output\n"
6262b72b	458	);