composite.c (1531B)
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);