drivers/clk/renesas/rcar-cpg-lib.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * R-Car Gen3 Clock Pulse Generator Library
   4  *
   5  * Copyright (C) 2015-2018 Glider bvba
   6  * Copyright (C) 2019 Renesas Electronics Corp.
   7  *
   8  * Based on clk-rcar-gen3.c
   9  *
  10  * Copyright (C) 2015 Renesas Electronics Corp.
  11  */
  12
  13 #ifndef __CLK_RENESAS_RCAR_CPG_LIB_H__
  14 #define __CLK_RENESAS_RCAR_CPG_LIB_H__
  15
  16 extern spinlock_t cpg_lock;
  17
  18 struct cpg_simple_notifier {
  19         struct notifier_block nb;
  20         void __iomem *reg;
  21         u32 saved;
  22 };
  23
  24 void cpg_simple_notifier_register(struct raw_notifier_head *notifiers,
  25                                   struct cpg_simple_notifier *csn);
  26
  27 void cpg_reg_modify(void __iomem *reg, u32 clear, u32 set);
  28
  29 struct clk * __init cpg_sdh_clk_register(const char *name,
  30         void __iomem *sdnckcr, const char *parent_name,
  31         struct raw_notifier_head *notifiers);
  32
  33 struct clk * __init cpg_sd_clk_register(const char *name,
  34         void __iomem *sdnckcr, const char *parent_name);
  35
  36 struct clk * __init cpg_rpc_clk_register(const char *name,
  37         void __iomem *rpcckcr, const char *parent_name,
  38         struct raw_notifier_head *notifiers);
  39
  40 struct clk * __init cpg_rpcd2_clk_register(const char *name,
  41                                            void __iomem *rpcckcr,
  42                                            const char *parent_name);
  43 #endif