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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*
2 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
3 *
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14#ifndef __QCOM_CLK_ALPHA_PLL_H__
15#define __QCOM_CLK_ALPHA_PLL_H__
16
17#include <linux/clk-provider.h>
18#include "clk-regmap.h"
19
20struct pll_vco {
21 unsigned long min_freq;
22 unsigned long max_freq;
23 u32 val;
24};
25
26/**
27 * struct clk_alpha_pll - phase locked loop (PLL)
28 * @offset: base address of registers
29 * @vco_table: array of VCO settings
30 * @clkr: regmap clock handle
31 */
32struct clk_alpha_pll {
33 u32 offset;
34
35 const struct pll_vco *vco_table;
36 size_t num_vco;
37#define SUPPORTS_OFFLINE_REQ BIT(0)
38#define SUPPORTS_16BIT_ALPHA BIT(1)
39#define SUPPORTS_FSM_MODE BIT(2)
40 u8 flags;
41
42 struct clk_regmap clkr;
43};
44
45/**
46 * struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
47 * @offset: base address of registers
48 * @width: width of post-divider
49 * @clkr: regmap clock handle
50 */
51struct clk_alpha_pll_postdiv {
52 u32 offset;
53 u8 width;
54
55 struct clk_regmap clkr;
56};
57
58struct alpha_pll_config {
59 u32 l;
60 u32 alpha;
61 u32 config_ctl_val;
62 u32 config_ctl_hi_val;
63 u32 main_output_mask;
64 u32 aux_output_mask;
65 u32 aux2_output_mask;
66 u32 early_output_mask;
67 u32 pre_div_val;
68 u32 pre_div_mask;
69 u32 post_div_val;
70 u32 post_div_mask;
71 u32 vco_val;
72 u32 vco_mask;
73};
74
75extern const struct clk_ops clk_alpha_pll_ops;
76extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
77extern const struct clk_ops clk_alpha_pll_postdiv_ops;
78
79void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
80 const struct alpha_pll_config *config);
81
82#endif