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// SPDX-License-Identifier: GPL-2.0
#include <linux/io.h>
#include <linux/clk-provider.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include "clk.h"
void mmp_clk_init(struct device_node *np, struct mmp_clk_unit *unit,
int nr_clks)
{
struct clk **clk_table;
clk_table = kcalloc(nr_clks, sizeof(struct clk *), GFP_KERNEL);
if (!clk_table)
return;
unit->clk_table = clk_table;
unit->nr_clks = nr_clks;
unit->clk_data.clks = clk_table;
unit->clk_data.clk_num = nr_clks;
of_clk_add_provider(np, of_clk_src_onecell_get, &unit->clk_data);
}
void mmp_register_fixed_rate_clks(struct mmp_clk_unit *unit,
struct mmp_param_fixed_rate_clk *clks,
int size)
{
int i;
struct clk *clk;
for (i = 0; i < size; i++) {
clk = clk_register_fixed_rate(NULL, clks[i].name,
clks[i].parent_name,
clks[i].flags,
clks[i].fixed_rate);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_register_fixed_factor_clks(struct mmp_clk_unit *unit,
struct mmp_param_fixed_factor_clk *clks,
int size)
{
struct clk *clk;
int i;
for (i = 0; i < size; i++) {
clk = clk_register_fixed_factor(NULL, clks[i].name,
clks[i].parent_name,
clks[i].flags, clks[i].mult,
clks[i].div);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_register_general_gate_clks(struct mmp_clk_unit *unit,
struct mmp_param_general_gate_clk *clks,
void __iomem *base, int size)
{
struct clk *clk;
int i;
for (i = 0; i < size; i++) {
clk = clk_register_gate(NULL, clks[i].name,
clks[i].parent_name,
clks[i].flags,
base + clks[i].offset,
clks[i].bit_idx,
clks[i].gate_flags,
clks[i].lock);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_register_gate_clks(struct mmp_clk_unit *unit,
struct mmp_param_gate_clk *clks,
void __iomem *base, int size)
{
struct clk *clk;
int i;
for (i = 0; i < size; i++) {
clk = mmp_clk_register_gate(NULL, clks[i].name,
clks[i].parent_name,
clks[i].flags,
base + clks[i].offset,
clks[i].mask,
clks[i].val_enable,
clks[i].val_disable,
clks[i].gate_flags,
clks[i].lock);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_register_mux_clks(struct mmp_clk_unit *unit,
struct mmp_param_mux_clk *clks,
void __iomem *base, int size)
{
struct clk *clk;
int i;
for (i = 0; i < size; i++) {
clk = clk_register_mux(NULL, clks[i].name,
clks[i].parent_name,
clks[i].num_parents,
clks[i].flags,
base + clks[i].offset,
clks[i].shift,
clks[i].width,
clks[i].mux_flags,
clks[i].lock);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_register_div_clks(struct mmp_clk_unit *unit,
struct mmp_param_div_clk *clks,
void __iomem *base, int size)
{
struct clk *clk;
int i;
for (i = 0; i < size; i++) {
clk = clk_register_divider(NULL, clks[i].name,
clks[i].parent_name,
clks[i].flags,
base + clks[i].offset,
clks[i].shift,
clks[i].width,
clks[i].div_flags,
clks[i].lock);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_register_pll_clks(struct mmp_clk_unit *unit,
struct mmp_param_pll_clk *clks,
void __iomem *base, int size)
{
struct clk *clk;
int i;
for (i = 0; i < size; i++) {
void __iomem *reg = NULL;
if (clks[i].offset)
reg = base + clks[i].offset;
clk = mmp_clk_register_pll(clks[i].name,
clks[i].default_rate,
base + clks[i].enable_offset,
clks[i].enable,
reg, clks[i].shift,
clks[i].input_rate,
base + clks[i].postdiv_offset,
clks[i].postdiv_shift);
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
continue;
}
if (clks[i].id)
unit->clk_table[clks[i].id] = clk;
}
}
void mmp_clk_add(struct mmp_clk_unit *unit, unsigned int id,
struct clk *clk)
{
if (IS_ERR_OR_NULL(clk)) {
pr_err("CLK %d has invalid pointer %p\n", id, clk);
return;
}
if (id >= unit->nr_clks) {
pr_err("CLK %d is invalid\n", id);
return;
}
unit->clk_table[id] = clk;
}
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