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/*
* Registration hooks for PMICs used with OMAP
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
* Nishanth Menon
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include "voltage.h"
#include "pm.h"
/**
* omap_pmic_data_init() - trigger point for all PMIC initializers
*/
void __init omap_pmic_data_init(void)
{
omap_twl_init();
omap_tps6236x_init();
}
/**
* omap_pmic_register_data() - Register the PMIC information to OMAP mapping
* @omap_pmic_maps: array ending with a empty element representing the maps
* @desc: description for this PMIC.
*/
int __init omap_pmic_register_data(struct omap_pmic_map *omap_pmic_maps,
struct omap_pmic_description *desc)
{
struct voltagedomain *voltdm;
struct omap_pmic_map *map;
int r;
if (!omap_pmic_maps)
return 0;
map = omap_pmic_maps;
while (map->name) {
if (!omap_chip_is(map->omap_chip))
goto next;
/* The base PMIC is the one controlling core voltdm */
if (desc && !strcmp(map->name, "core"))
omap_pm_set_pmic_lp_time(desc->pmic_lp_tstart,
desc->pmic_lp_tshut);
voltdm = voltdm_lookup(map->name);
if (IS_ERR_OR_NULL(voltdm)) {
pr_err("%s: unable to find map %s\n", __func__,
map->name);
goto next;
}
if (IS_ERR_OR_NULL(map->pmic_data)) {
pr_warning("%s: domain[%s] has no pmic data\n",
__func__, map->name);
goto next;
}
r = omap_voltage_register_pmic(voltdm, map->pmic_data);
if (r) {
pr_warning("%s: domain[%s] register returned %d\n",
__func__, map->name, r);
goto next;
}
if (map->special_action) {
r = map->special_action(voltdm);
WARN(r, "%s: domain[%s] action returned %d\n", __func__,
map->name, r);
}
next:
map++;
}
return 0;
}
int __init omap_pmic_update(struct omap_pmic_map *tmp_map, char *name,
u32 old_chip_id, u32 new_chip_id)
{
while (tmp_map->name != NULL) {
if (!strcmp(tmp_map->name, name) &&
(tmp_map->omap_chip.oc & new_chip_id)) {
WARN(1, "%s: this map already exists:%s-%x\n",
__func__, name, new_chip_id);
return -1;
}
if (!strcmp(tmp_map->name, name) &&
(tmp_map->omap_chip.oc & old_chip_id))
break;
tmp_map++;
}
if (tmp_map->name != NULL) {
tmp_map->omap_chip.oc = new_chip_id;
return 0;
}
return -ENOENT;
}
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