linux/drivers/clk/mediatek/clk-pllfh.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2022 MediaTek Inc.
 * Author: Edward-JW Yang <[email protected]>
 */

#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/clkdev.h>
#include <linux/delay.h>

#include "clk-mtk.h"
#include "clk-pllfh.h"
#include "clk-fhctl.h"

static DEFINE_SPINLOCK(pllfh_lock);

inline struct mtk_fh *to_mtk_fh(struct clk_hw *hw)
{ … }

static int mtk_fhctl_set_rate(struct clk_hw *hw, unsigned long rate,
			      unsigned long parent_rate)
{ … }

static const struct clk_ops mtk_pllfh_ops = …;

static struct mtk_pllfh_data *get_pllfh_by_id(struct mtk_pllfh_data *pllfhs,
					      int num_fhs, int pll_id)
{ … }

void fhctl_parse_dt(const u8 *compatible_node, struct mtk_pllfh_data *pllfhs,
		    int num_fhs)
{ … }
EXPORT_SYMBOL_GPL(…);

static int pllfh_init(struct mtk_fh *fh, struct mtk_pllfh_data *pllfh_data)
{ … }

static bool fhctl_is_supported_and_enabled(const struct mtk_pllfh_data *pllfh)
{ … }

static struct clk_hw *
mtk_clk_register_pllfh(const struct mtk_pll_data *pll_data,
		       struct mtk_pllfh_data *pllfh_data, void __iomem *base)
{ … }

static void mtk_clk_unregister_pllfh(struct clk_hw *hw)
{ … }

int mtk_clk_register_pllfhs(struct device_node *node,
			    const struct mtk_pll_data *plls, int num_plls,
			    struct mtk_pllfh_data *pllfhs, int num_fhs,
			    struct clk_hw_onecell_data *clk_data)
{ … }
EXPORT_SYMBOL_GPL(…);

void mtk_clk_unregister_pllfhs(const struct mtk_pll_data *plls, int num_plls,
			       struct mtk_pllfh_data *pllfhs, int num_fhs,
			       struct clk_hw_onecell_data *clk_data)
{ … }
EXPORT_SYMBOL_GPL(…);