Chunyan Zhang | 4fcba55 | 2017-12-07 20:57:09 +0800 | [diff] [blame] | 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 | |
Maxime Ripard | 302d2f8 | 2023-05-05 13:26:03 +0200 | [diff] [blame] | 12 | static int sprd_comp_determine_rate(struct clk_hw *hw, |
| 13 | struct clk_rate_request *req) |
Chunyan Zhang | 4fcba55 | 2017-12-07 20:57:09 +0800 | [diff] [blame] | 14 | { |
| 15 | struct sprd_comp *cc = hw_to_sprd_comp(hw); |
| 16 | |
Stephen Boyd | 587dd44 | 2023-06-13 12:54:42 -0700 | [diff] [blame] | 17 | return divider_determine_rate(hw, req, NULL, cc->div.width, 0); |
Chunyan Zhang | 4fcba55 | 2017-12-07 20:57:09 +0800 | [diff] [blame] | 18 | } |
| 19 | |
| 20 | static unsigned long sprd_comp_recalc_rate(struct clk_hw *hw, |
| 21 | unsigned long parent_rate) |
| 22 | { |
| 23 | struct sprd_comp *cc = hw_to_sprd_comp(hw); |
| 24 | |
| 25 | return sprd_div_helper_recalc_rate(&cc->common, &cc->div, parent_rate); |
| 26 | } |
| 27 | |
| 28 | static int sprd_comp_set_rate(struct clk_hw *hw, unsigned long rate, |
| 29 | unsigned long parent_rate) |
| 30 | { |
| 31 | struct sprd_comp *cc = hw_to_sprd_comp(hw); |
| 32 | |
| 33 | return sprd_div_helper_set_rate(&cc->common, &cc->div, |
| 34 | rate, parent_rate); |
| 35 | } |
| 36 | |
| 37 | static u8 sprd_comp_get_parent(struct clk_hw *hw) |
| 38 | { |
| 39 | struct sprd_comp *cc = hw_to_sprd_comp(hw); |
| 40 | |
| 41 | return sprd_mux_helper_get_parent(&cc->common, &cc->mux); |
| 42 | } |
| 43 | |
| 44 | static int sprd_comp_set_parent(struct clk_hw *hw, u8 index) |
| 45 | { |
| 46 | struct sprd_comp *cc = hw_to_sprd_comp(hw); |
| 47 | |
| 48 | return sprd_mux_helper_set_parent(&cc->common, &cc->mux, index); |
| 49 | } |
| 50 | |
| 51 | const struct clk_ops sprd_comp_ops = { |
| 52 | .get_parent = sprd_comp_get_parent, |
| 53 | .set_parent = sprd_comp_set_parent, |
| 54 | |
Maxime Ripard | 302d2f8 | 2023-05-05 13:26:03 +0200 | [diff] [blame] | 55 | .determine_rate = sprd_comp_determine_rate, |
Chunyan Zhang | 4fcba55 | 2017-12-07 20:57:09 +0800 | [diff] [blame] | 56 | .recalc_rate = sprd_comp_recalc_rate, |
| 57 | .set_rate = sprd_comp_set_rate, |
| 58 | }; |
| 59 | EXPORT_SYMBOL_GPL(sprd_comp_ops); |