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4fcba55c CZ |
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); |