drivers/clk/mediatek/clk-pllfh.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2022 MediaTek Inc.
   4  * Author: Edward-JW Yang <edward-jw.yang@mediatek.com>
   5  */
   6
   7 #ifndef __CLK_PLLFH_H
   8 #define __CLK_PLLFH_H
   9
  10 #include "clk-pll.h"
  11
  12 struct fh_pll_state {
  13         void __iomem *base;
  14         u32 fh_enable;
  15         u32 ssc_rate;
  16 };
  17
  18 struct fh_pll_data {
  19         int pll_id;
  20         int fh_id;
  21         int fh_ver;
  22         u32 fhx_offset;
  23         u32 dds_mask;
  24         u32 slope0_value;
  25         u32 slope1_value;
  26         u32 sfstrx_en;
  27         u32 frddsx_en;
  28         u32 fhctlx_en;
  29         u32 tgl_org;
  30         u32 dvfs_tri;
  31         u32 pcwchg;
  32         u32 dt_val;
  33         u32 df_val;
  34         u32 updnlmt_shft;
  35         u32 msk_frddsx_dys;
  36         u32 msk_frddsx_dts;
  37 };
  38
  39 struct mtk_pllfh_data {
  40         struct fh_pll_state state;
  41         const struct fh_pll_data data;
  42 };
  43
  44 struct fh_pll_regs {
  45         void __iomem *reg_hp_en;
  46         void __iomem *reg_clk_con;
  47         void __iomem *reg_rst_con;
  48         void __iomem *reg_slope0;
  49         void __iomem *reg_slope1;
  50         void __iomem *reg_cfg;
  51         void __iomem *reg_updnlmt;
  52         void __iomem *reg_dds;
  53         void __iomem *reg_dvfs;
  54         void __iomem *reg_mon;
  55 };
  56
  57 struct mtk_fh {
  58         struct mtk_clk_pll clk_pll;
  59         struct fh_pll_regs regs;
  60         struct mtk_pllfh_data *pllfh_data;
  61         const struct fh_operation *ops;
  62         spinlock_t *lock;
  63 };
  64
  65 struct fh_operation {
  66         int (*hopping)(struct mtk_fh *fh, unsigned int new_dds,
  67                        unsigned int postdiv);
  68         int (*ssc_enable)(struct mtk_fh *fh, u32 rate);
  69 };
  70
  71 int mtk_clk_register_pllfhs(struct device_node *node,
  72                             const struct mtk_pll_data *plls, int num_plls,
  73                             struct mtk_pllfh_data *pllfhs, int num_pllfhs,
  74                             struct clk_hw_onecell_data *clk_data);
  75
  76 void mtk_clk_unregister_pllfhs(const struct mtk_pll_data *plls, int num_plls,
  77                                struct mtk_pllfh_data *pllfhs, int num_fhs,
  78                                struct clk_hw_onecell_data *clk_data);
  79
  80 void fhctl_parse_dt(const u8 *compatible_node, struct mtk_pllfh_data *pllfhs,
  81                     int num_pllfhs);
  82
  83 #endif /* __CLK_PLLFH_H */