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
sprd_comp_round_rate(struct clk_hw * hw,unsigned long rate,unsigned long * parent_rate)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
sprd_comp_recalc_rate(struct clk_hw * hw,unsigned long parent_rate)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
sprd_comp_set_rate(struct clk_hw * hw,unsigned long rate,unsigned long parent_rate)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
sprd_comp_get_parent(struct clk_hw * hw)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
sprd_comp_set_parent(struct clk_hw * hw,u8 index)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