2 * Copyright (C) 2011 Samsung Electronics
3 * Lukasz Majewski <l.majewski@samsung.com>
6 * Stefano Babic, DENX Software Engineering, sbabic@denx.de
8 * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
10 * SPDX-License-Identifier: GPL-2.0+
15 #include <linux/types.h>
16 #include <linux/list.h>
17 #include <power/pmic.h>
19 static LIST_HEAD(pmic_list);
21 int check_reg(struct pmic *p, u32 reg)
23 if (reg >= p->number_of_regs) {
24 printf("<reg num> = %d is invalid. Should be less than %d\n",
25 reg, p->number_of_regs);
32 int pmic_set_output(struct pmic *p, u32 reg, int out, int on)
36 if (pmic_reg_read(p, reg, &val))
44 if (pmic_reg_write(p, reg, val))
50 static void pmic_show_info(struct pmic *p)
52 printf("PMIC: %s\n", p->name);
55 static int pmic_dump(struct pmic *p)
61 puts("Wrong PMIC name!\n");
66 for (i = 0; i < p->number_of_regs; i++) {
67 ret = pmic_reg_read(p, i, &val);
69 puts("PMIC: Registers dump failed\n");
72 printf("\n0x%02x: ", i);
80 struct pmic *pmic_alloc(void)
84 p = calloc(sizeof(*p), 1);
86 printf("%s: No available memory for allocation!\n", __func__);
90 list_add_tail(&p->list, &pmic_list);
92 debug("%s: new pmic struct: 0x%p\n", __func__, p);
97 struct pmic *pmic_get(const char *s)
101 list_for_each_entry(p, &pmic_list, list) {
102 if (strcmp(p->name, s) == 0) {
103 debug("%s: pmic %s -> 0x%p\n", __func__, p->name, p);
111 const char *power_get_interface(int interface)
113 const char *power_interface[] = {"I2C", "SPI", "|+|-|"};
114 return power_interface[interface];
117 static void pmic_list_names(void)
121 puts("PMIC devices:\n");
122 list_for_each_entry(p, &pmic_list, list) {
123 printf("name: %s bus: %s_%d\n", p->name,
124 power_get_interface(p->interface), p->bus);
128 int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
134 /* at least two arguments please */
136 return CMD_RET_USAGE;
138 if (strcmp(argv[1], "list") == 0) {
140 return CMD_RET_SUCCESS;
144 return CMD_RET_USAGE;
149 debug("%s: name: %s cmd: %s\n", __func__, name, cmd);
152 return CMD_RET_FAILURE;
154 if (strcmp(cmd, "dump") == 0) {
156 return CMD_RET_FAILURE;
157 return CMD_RET_SUCCESS;
160 if (strcmp(cmd, "read") == 0) {
162 return CMD_RET_USAGE;
164 reg = simple_strtoul(argv[3], NULL, 16);
165 ret = pmic_reg_read(p, reg, &val);
168 puts("PMIC: Register read failed\n");
170 printf("\n0x%02x: 0x%08x\n", reg, val);
172 return CMD_RET_SUCCESS;
175 if (strcmp(cmd, "write") == 0) {
177 return CMD_RET_USAGE;
179 reg = simple_strtoul(argv[3], NULL, 16);
180 val = simple_strtoul(argv[4], NULL, 16);
181 pmic_reg_write(p, reg, val);
183 return CMD_RET_SUCCESS;
186 if (strcmp(cmd, "bat") == 0) {
188 return CMD_RET_USAGE;
191 printf("%s is not a battery\n", p->name);
192 return CMD_RET_FAILURE;
195 if (strcmp(argv[3], "state") == 0)
196 p->fg->fg_battery_check(p->pbat->fg, p);
198 if (strcmp(argv[3], "charge") == 0) {
199 printf("BAT: %s charging (ctrl+c to break)\n",
201 if (p->low_power_mode)
203 if (p->pbat->battery_charge)
204 p->pbat->battery_charge(p);
207 return CMD_RET_SUCCESS;
210 /* No subcommand found */
211 return CMD_RET_SUCCESS;
215 pmic, CONFIG_SYS_MAXARGS, 1, do_pmic,
217 "list - list available PMICs\n"
218 "pmic name dump - dump named PMIC registers\n"
219 "pmic name read <reg> - read register\n"
220 "pmic name write <reg> <value> - write register\n"
221 "pmic name bat state - write register\n"
222 "pmic name bat charge - write register\n"