LXR linux/drivers/clk/microchip/clk-core.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Purna Chandra Mandal,<purna.mandal@microchip.com>
   4 * Copyright (C) 2015 Microchip Technology Inc.  All rights reserved.
   5 */
   6#ifndef __MICROCHIP_CLK_PIC32_H_
   7#define __MICROCHIP_CLK_PIC32_H_
   8
   9#include <linux/clk-provider.h>
  10
  11/* PIC32 clock data */
  12struct pic32_clk_common {
  13        struct device *dev;
  14        void __iomem *iobase;
  15        spinlock_t reg_lock; /* clock lock */
  16};
  17
  18/* System PLL clock */
  19struct pic32_sys_pll_data {
  20        struct clk_init_data init_data;
  21        const u32 ctrl_reg;
  22        const u32 status_reg;
  23        const u32 lock_mask;
  24};
  25
  26/* System clock */
  27struct pic32_sys_clk_data {
  28        struct clk_init_data init_data;
  29        const u32 mux_reg;
  30        const u32 slew_reg;
  31        const u32 *parent_map;
  32        const u32 slew_div;
  33};
  34
  35/* Reference Oscillator clock */
  36struct pic32_ref_osc_data {
  37        struct clk_init_data init_data;
  38        const u32 ctrl_reg;
  39        const u32 *parent_map;
  40};
  41
  42/* Peripheral Bus clock */
  43struct pic32_periph_clk_data {
  44        struct clk_init_data init_data;
  45        const u32 ctrl_reg;
  46};
  47
  48/* External Secondary Oscillator clock  */
  49struct pic32_sec_osc_data {
  50        struct clk_init_data init_data;
  51        const u32 enable_reg;
  52        const u32 status_reg;
  53        const u32 enable_mask;
  54        const u32 status_mask;
  55        const unsigned long fixed_rate;
  56};
  57
  58extern const struct clk_ops pic32_pbclk_ops;
  59extern const struct clk_ops pic32_sclk_ops;
  60extern const struct clk_ops pic32_sclk_no_div_ops;
  61extern const struct clk_ops pic32_spll_ops;
  62extern const struct clk_ops pic32_roclk_ops;
  63extern const struct clk_ops pic32_sosc_ops;
  64
  65struct clk *pic32_periph_clk_register(const struct pic32_periph_clk_data *data,
  66                                      struct pic32_clk_common *core);
  67struct clk *pic32_refo_clk_register(const struct pic32_ref_osc_data *data,
  68                                    struct pic32_clk_common *core);
  69struct clk *pic32_sys_clk_register(const struct pic32_sys_clk_data *data,
  70                                   struct pic32_clk_common *core);
  71struct clk *pic32_spll_clk_register(const struct pic32_sys_pll_data *data,
  72                                    struct pic32_clk_common *core);
  73struct clk *pic32_sosc_clk_register(const struct pic32_sec_osc_data *data,
  74                                    struct pic32_clk_common *core);
  75
  76#endif /* __MICROCHIP_CLK_PIC32_H_*/
  77