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// SPDX-License-Identifier: GPL-2.0+
/*
* Core driver for Renesas Synchronization Management Unit (SMU) devices.
*
* Copyright (C) 2021 Integrated Device Technology, Inc., a Renesas Company.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
#include <linux/mfd/rsmu.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include "rsmu.h"
enum {
RSMU_PHC = 0,
RSMU_CDEV = 1,
RSMU_N_DEVS = 2,
};
static struct mfd_cell rsmu_cm_devs[] = {
[RSMU_PHC] = {
.name = "8a3400x-phc",
},
[RSMU_CDEV] = {
.name = "8a3400x-cdev",
},
};
static struct mfd_cell rsmu_sabre_devs[] = {
[RSMU_PHC] = {
.name = "82p33x1x-phc",
},
[RSMU_CDEV] = {
.name = "82p33x1x-cdev",
},
};
static struct mfd_cell rsmu_sl_devs[] = {
[RSMU_PHC] = {
.name = "8v19n85x-phc",
},
[RSMU_CDEV] = {
.name = "8v19n85x-cdev",
},
};
int rsmu_core_init(struct rsmu_ddata *rsmu)
{
struct mfd_cell *cells;
int ret;
switch (rsmu->type) {
case RSMU_CM:
cells = rsmu_cm_devs;
break;
case RSMU_SABRE:
cells = rsmu_sabre_devs;
break;
case RSMU_SL:
cells = rsmu_sl_devs;
break;
default:
dev_err(rsmu->dev, "Unsupported RSMU device type: %d\n", rsmu->type);
return -ENODEV;
}
mutex_init(&rsmu->lock);
ret = devm_mfd_add_devices(rsmu->dev, PLATFORM_DEVID_AUTO, cells,
RSMU_N_DEVS, NULL, 0, NULL);
if (ret < 0)
dev_err(rsmu->dev, "Failed to register sub-devices: %d\n", ret);
return ret;
}
void rsmu_core_exit(struct rsmu_ddata *rsmu)
{
mutex_destroy(&rsmu->lock);
}
MODULE_DESCRIPTION("Renesas SMU core driver");
MODULE_LICENSE("GPL");
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