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 12 static 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 21 static 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 29 static 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 38 static 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 45 static 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 52 const 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 }; 60 EXPORT_SYMBOL_GPL(sprd_comp_ops); 61