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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2017 NXP
*
* Dong Aisheng <aisheng.dong@nxp.com>
*/
#include <common.h>
#include <errno.h>
#include <malloc.h>
#include <stringlist.h>
#include <complete.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/clk/clk-conf.h>
void clk_bulk_put(int num_clks, struct clk_bulk_data *clks)
{
while (--num_clks >= 0) {
clk_put(clks[num_clks].clk);
clks[num_clks].clk = NULL;
}
}
EXPORT_SYMBOL_GPL(clk_bulk_put);
int __must_check clk_bulk_get(struct device_d *dev, int num_clks,
struct clk_bulk_data *clks)
{
int ret;
int i;
for (i = 0; i < num_clks; i++)
clks[i].clk = NULL;
for (i = 0; i < num_clks; i++) {
clks[i].clk = clk_get(dev, clks[i].id);
if (IS_ERR(clks[i].clk)) {
ret = PTR_ERR(clks[i].clk);
if (ret != -EPROBE_DEFER)
dev_err(dev, "Failed to get clk '%s': %d\n",
clks[i].id, ret);
clks[i].clk = NULL;
goto err;
}
}
return 0;
err:
clk_bulk_put(i, clks);
return ret;
}
EXPORT_SYMBOL(clk_bulk_get);
/**
* clk_bulk_disable - gate a set of clocks
* @num_clks: the number of clk_bulk_data
* @clks: the clk_bulk_data table being gated
*
* clk_bulk_disable must not sleep, which differentiates it from
* clk_bulk_unprepare. clk_bulk_disable must be called before
* clk_bulk_unprepare.
*/
void clk_bulk_disable(int num_clks, const struct clk_bulk_data *clks)
{
while (--num_clks >= 0)
clk_disable(clks[num_clks].clk);
}
EXPORT_SYMBOL_GPL(clk_bulk_disable);
/**
* clk_bulk_enable - ungate a set of clocks
* @num_clks: the number of clk_bulk_data
* @clks: the clk_bulk_data table being ungated
*
* clk_bulk_enable must not sleep
* Returns 0 on success, -EERROR otherwise.
*/
int __must_check clk_bulk_enable(int num_clks, const struct clk_bulk_data *clks)
{
int ret;
int i;
for (i = 0; i < num_clks; i++) {
ret = clk_enable(clks[i].clk);
if (ret) {
pr_err("Failed to enable clk '%s': %d\n",
clks[i].id, ret);
goto err;
}
}
return 0;
err:
clk_bulk_disable(i, clks);
return ret;
}
EXPORT_SYMBOL_GPL(clk_bulk_enable);
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