LXR linux/drivers/clk/sprd/composite.c

   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Spreadtrum composite clock driver
   4//
   5// Copyright (C) 2017 Spreadtrum, Inc.
   6// Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
   7
   8#include <linux/clk-provider.h>
   9
  10#include "composite.h"
  11
  12static long sprd_comp_round_rate(struct clk_hw *hw, unsigned long rate,
  13                                unsigned long *parent_rate)
  14{
  15        struct sprd_comp *cc = hw_to_sprd_comp(hw);
  16
  17        return sprd_div_helper_round_rate(&cc->common, &cc->div,
  18                                         rate, parent_rate);
  19}
  20
  21static unsigned long sprd_comp_recalc_rate(struct clk_hw *hw,
  22                                          unsigned long parent_rate)
  23{
  24        struct sprd_comp *cc = hw_to_sprd_comp(hw);
  25
  26        return sprd_div_helper_recalc_rate(&cc->common, &cc->div, parent_rate);
  27}
  28
  29static int sprd_comp_set_rate(struct clk_hw *hw, unsigned long rate,
  30                             unsigned long parent_rate)
  31{
  32        struct sprd_comp *cc = hw_to_sprd_comp(hw);
  33
  34        return sprd_div_helper_set_rate(&cc->common, &cc->div,
  35                                       rate, parent_rate);
  36}
  37
  38static u8 sprd_comp_get_parent(struct clk_hw *hw)
  39{
  40        struct sprd_comp *cc = hw_to_sprd_comp(hw);
  41
  42        return sprd_mux_helper_get_parent(&cc->common, &cc->mux);
  43}
  44
  45static int sprd_comp_set_parent(struct clk_hw *hw, u8 index)
  46{
  47        struct sprd_comp *cc = hw_to_sprd_comp(hw);
  48
  49        return sprd_mux_helper_set_parent(&cc->common, &cc->mux, index);
  50}
  51
  52const struct clk_ops sprd_comp_ops = {
  53        .get_parent     = sprd_comp_get_parent,
  54        .set_parent     = sprd_comp_set_parent,
  55
  56        .round_rate     = sprd_comp_round_rate,
  57        .recalc_rate    = sprd_comp_recalc_rate,
  58        .set_rate       = sprd_comp_set_rate,
  59};
  60EXPORT_SYMBOL_GPL(sprd_comp_ops);
  61