1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
4 */
5
6#include <linux/clk-provider.h>
7#include <linux/module.h>
8#include <linux/platform_device.h>
9#include <linux/pm_runtime.h>
10#include <linux/regmap.h>
11
12#include <dt-bindings/clock/qcom,videocc-sm8150.h>
13
14#include "common.h"
15#include "clk-alpha-pll.h"
16#include "clk-branch.h"
17#include "clk-rcg.h"
18#include "clk-regmap.h"
19#include "reset.h"
20#include "gdsc.h"
21
22enum {
23 P_BI_TCXO,
24 P_VIDEO_PLL0_OUT_MAIN,
25};
26
27static struct pll_vco trion_vco[] = {
28 { 249600000, 2000000000, 0 },
29};
30
31static struct alpha_pll_config video_pll0_config = {
32 .l = 0x14,
33 .alpha = 0xD555,
34 .config_ctl_val = 0x20485699,
35 .config_ctl_hi_val = 0x00002267,
36 .config_ctl_hi1_val = 0x00000024,
37 .test_ctl_hi1_val = 0x00000020,
38 .user_ctl_val = 0x00000000,
39 .user_ctl_hi_val = 0x00000805,
40 .user_ctl_hi1_val = 0x000000D0,
41};
42
43static struct clk_alpha_pll video_pll0 = {
44 .offset = 0x42c,
45 .vco_table = trion_vco,
46 .num_vco = ARRAY_SIZE(trion_vco),
47 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TRION],
48 .clkr = {
49 .hw.init = &(struct clk_init_data){
50 .name = "video_pll0",
51 .parent_data = &(const struct clk_parent_data){
52 .fw_name = "bi_tcxo",
53 },
54 .num_parents = 1,
55 .ops = &clk_alpha_pll_trion_ops,
56 },
57 },
58};
59
60static const struct parent_map video_cc_parent_map_0[] = {
61 { P_BI_TCXO, 0 },
62 { P_VIDEO_PLL0_OUT_MAIN, 1 },
63};
64
65static const struct clk_parent_data video_cc_parent_data_0[] = {
66 { .fw_name = "bi_tcxo" },
67 { .hw = &video_pll0.clkr.hw },
68};
69
70static const struct freq_tbl ftbl_video_cc_iris_clk_src[] = {
71 F(19200000, P_BI_TCXO, 1, 0, 0),
72 F(200000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
73 F(240000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
74 F(338000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
75 F(365000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
76 F(444000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
77 F(533000000, P_VIDEO_PLL0_OUT_MAIN, 2, 0, 0),
78 { }
79};
80
81static struct clk_rcg2 video_cc_iris_clk_src = {
82 .cmd_rcgr = 0x7f0,
83 .mnd_width = 0,
84 .hid_width = 5,
85 .parent_map = video_cc_parent_map_0,
86 .freq_tbl = ftbl_video_cc_iris_clk_src,
87 .clkr.hw.init = &(struct clk_init_data){
88 .name = "video_cc_iris_clk_src",
89 .parent_data = video_cc_parent_data_0,
90 .num_parents = ARRAY_SIZE(video_cc_parent_data_0),
91 .flags = CLK_SET_RATE_PARENT,
92 .ops = &clk_rcg2_shared_ops,
93 },
94};
95
96static struct clk_branch video_cc_iris_ahb_clk = {
97 .halt_reg = 0x8f4,
98 .halt_check = BRANCH_VOTED,
99 .clkr = {
100 .enable_reg = 0x8f4,
101 .enable_mask = BIT(0),
102 .hw.init = &(struct clk_init_data){
103 .name = "video_cc_iris_ahb_clk",
104 .parent_hws = (const struct clk_hw*[]){
105 &video_cc_iris_clk_src.clkr.hw,
106 },
107 .num_parents = 1,
108 .flags = CLK_SET_RATE_PARENT,
109 .ops = &clk_branch2_ops,
110 },
111 },
112};
113
114static struct clk_branch video_cc_mvs0_core_clk = {
115 .halt_reg = 0x890,
116 .halt_check = BRANCH_VOTED,
117 .clkr = {
118 .enable_reg = 0x890,
119 .enable_mask = BIT(0),
120 .hw.init = &(struct clk_init_data){
121 .name = "video_cc_mvs0_core_clk",
122 .parent_hws = (const struct clk_hw*[]){
123 &video_cc_iris_clk_src.clkr.hw,
124 },
125 .num_parents = 1,
126 .flags = CLK_SET_RATE_PARENT,
127 .ops = &clk_branch2_ops,
128 },
129 },
130};
131
132static struct clk_branch video_cc_mvs1_core_clk = {
133 .halt_reg = 0x8d0,
134 .halt_check = BRANCH_VOTED,
135 .clkr = {
136 .enable_reg = 0x8d0,
137 .enable_mask = BIT(0),
138 .hw.init = &(struct clk_init_data){
139 .name = "video_cc_mvs1_core_clk",
140 .parent_hws = (const struct clk_hw*[]){
141 &video_cc_iris_clk_src.clkr.hw,
142 },
143 .num_parents = 1,
144 .flags = CLK_SET_RATE_PARENT,
145 .ops = &clk_branch2_ops,
146 },
147 },
148};
149
150static struct clk_branch video_cc_mvsc_core_clk = {
151 .halt_reg = 0x850,
152 .halt_check = BRANCH_HALT,
153 .clkr = {
154 .enable_reg = 0x850,
155 .enable_mask = BIT(0),
156 .hw.init = &(struct clk_init_data){
157 .name = "video_cc_mvsc_core_clk",
158 .parent_hws = (const struct clk_hw*[]){
159 &video_cc_iris_clk_src.clkr.hw,
160 },
161 .num_parents = 1,
162 .flags = CLK_SET_RATE_PARENT,
163 .ops = &clk_branch2_ops,
164 },
165 },
166};
167
168static struct gdsc venus_gdsc = {
169 .gdscr = 0x814,
170 .pd = {
171 .name = "venus_gdsc",
172 },
173 .flags = 0,
174 .pwrsts = PWRSTS_OFF_ON,
175};
176
177static struct gdsc vcodec0_gdsc = {
178 .gdscr = 0x874,
179 .pd = {
180 .name = "vcodec0_gdsc",
181 },
182 .flags = HW_CTRL,
183 .pwrsts = PWRSTS_OFF_ON,
184};
185
186static struct gdsc vcodec1_gdsc = {
187 .gdscr = 0x8b4,
188 .pd = {
189 .name = "vcodec1_gdsc",
190 },
191 .flags = HW_CTRL,
192 .pwrsts = PWRSTS_OFF_ON,
193};
194static struct clk_regmap *video_cc_sm8150_clocks[] = {
195 [VIDEO_CC_IRIS_AHB_CLK] = &video_cc_iris_ahb_clk.clkr,
196 [VIDEO_CC_IRIS_CLK_SRC] = &video_cc_iris_clk_src.clkr,
197 [VIDEO_CC_MVS0_CORE_CLK] = &video_cc_mvs0_core_clk.clkr,
198 [VIDEO_CC_MVS1_CORE_CLK] = &video_cc_mvs1_core_clk.clkr,
199 [VIDEO_CC_MVSC_CORE_CLK] = &video_cc_mvsc_core_clk.clkr,
200 [VIDEO_CC_PLL0] = &video_pll0.clkr,
201};
202
203static struct gdsc *video_cc_sm8150_gdscs[] = {
204 [VENUS_GDSC] = &venus_gdsc,
205 [VCODEC0_GDSC] = &vcodec0_gdsc,
206 [VCODEC1_GDSC] = &vcodec1_gdsc,
207};
208
209static const struct regmap_config video_cc_sm8150_regmap_config = {
210 .reg_bits = 32,
211 .reg_stride = 4,
212 .val_bits = 32,
213 .max_register = 0xb94,
214 .fast_io = true,
215};
216
217static const struct qcom_reset_map video_cc_sm8150_resets[] = {
218 [VIDEO_CC_MVSC_CORE_CLK_BCR] = { .reg = 0x850, .bit = 2, .udelay = 150 },
219 [VIDEO_CC_INTERFACE_BCR] = { 0x8f0 },
220 [VIDEO_CC_MVS0_BCR] = { 0x870 },
221 [VIDEO_CC_MVS1_BCR] = { 0x8b0 },
222 [VIDEO_CC_MVSC_BCR] = { 0x810 },
223};
224
225static const struct qcom_cc_desc video_cc_sm8150_desc = {
226 .config = &video_cc_sm8150_regmap_config,
227 .clks = video_cc_sm8150_clocks,
228 .num_clks = ARRAY_SIZE(video_cc_sm8150_clocks),
229 .resets = video_cc_sm8150_resets,
230 .num_resets = ARRAY_SIZE(video_cc_sm8150_resets),
231 .gdscs = video_cc_sm8150_gdscs,
232 .num_gdscs = ARRAY_SIZE(video_cc_sm8150_gdscs),
233};
234
235static const struct of_device_id video_cc_sm8150_match_table[] = {
236 { .compatible = "qcom,sm8150-videocc" },
237 { }
238};
239MODULE_DEVICE_TABLE(of, video_cc_sm8150_match_table);
240
241static int video_cc_sm8150_probe(struct platform_device *pdev)
242{
243 struct regmap *regmap;
244 int ret;
245
246 ret = devm_pm_runtime_enable(dev: &pdev->dev);
247 if (ret)
248 return ret;
249
250 ret = pm_runtime_resume_and_get(dev: &pdev->dev);
251 if (ret)
252 return ret;
253
254 regmap = qcom_cc_map(pdev, desc: &video_cc_sm8150_desc);
255 if (IS_ERR(ptr: regmap)) {
256 pm_runtime_put_sync(dev: &pdev->dev);
257 return PTR_ERR(ptr: regmap);
258 }
259
260 clk_trion_pll_configure(pll: &video_pll0, regmap, config: &video_pll0_config);
261
262 /* Keep VIDEO_CC_XO_CLK ALWAYS-ON */
263 regmap_update_bits(map: regmap, reg: 0x984, mask: 0x1, val: 0x1);
264
265 ret = qcom_cc_really_probe(pdev, desc: &video_cc_sm8150_desc, regmap);
266
267 pm_runtime_put_sync(dev: &pdev->dev);
268
269 return ret;
270}
271
272static struct platform_driver video_cc_sm8150_driver = {
273 .probe = video_cc_sm8150_probe,
274 .driver = {
275 .name = "video_cc-sm8150",
276 .of_match_table = video_cc_sm8150_match_table,
277 },
278};
279
280module_platform_driver(video_cc_sm8150_driver);
281
282MODULE_LICENSE("GPL v2");
283MODULE_DESCRIPTION("QTI VIDEOCC SM8150 Driver");
284

source code of linux/drivers/clk/qcom/videocc-sm8150.c