drivers/clk/mediatek/clk-pllfh.h

root/drivers/clk/mediatek/clk-pllfh.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2022 MediaTek Inc.
 * Author: Edward-JW Yang <edward-jw.yang@mediatek.com>
 */

#ifndef __CLK_PLLFH_H
#define __CLK_PLLFH_H

#include "clk-pll.h"

struct fh_pll_state {
        void __iomem *base;
        u32 fh_enable;
        u32 ssc_rate;
};

struct fh_pll_data {
        int pll_id;
        int fh_id;
        int fh_ver;
        u32 fhx_offset;
        u32 dds_mask;
        u32 slope0_value;
        u32 slope1_value;
        u32 sfstrx_en;
        u32 frddsx_en;
        u32 fhctlx_en;
        u32 tgl_org;
        u32 dvfs_tri;
        u32 pcwchg;
        u32 dt_val;
        u32 df_val;
        u32 updnlmt_shft;
        u32 msk_frddsx_dys;
        u32 msk_frddsx_dts;
};

struct mtk_pllfh_data {
        struct fh_pll_state state;
        const struct fh_pll_data data;
};

struct fh_pll_regs {
        void __iomem *reg_hp_en;
        void __iomem *reg_clk_con;
        void __iomem *reg_rst_con;
        void __iomem *reg_slope0;
        void __iomem *reg_slope1;
        void __iomem *reg_cfg;
        void __iomem *reg_updnlmt;
        void __iomem *reg_dds;
        void __iomem *reg_dvfs;
        void __iomem *reg_mon;
};

struct mtk_fh {
        struct mtk_clk_pll clk_pll;
        struct fh_pll_regs regs;
        struct mtk_pllfh_data *pllfh_data;
        const struct fh_operation *ops;
        spinlock_t *lock;
};

struct fh_operation {
        int (*hopping)(struct mtk_fh *fh, unsigned int new_dds,
                       unsigned int postdiv);
        int (*ssc_enable)(struct mtk_fh *fh, u32 rate);
};

int mtk_clk_register_pllfhs(struct device *dev,
                            const struct mtk_pll_data *plls, int num_plls,
                            struct mtk_pllfh_data *pllfhs, int num_pllfhs,
                            struct clk_hw_onecell_data *clk_data);

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);

void fhctl_parse_dt(const u8 *compatible_node, struct mtk_pllfh_data *pllfhs,
                    int num_pllfhs);

#endif /* __CLK_PLLFH_H */
Linux
