1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2018-2020, 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-sm8250.h>
13
14 #include "clk-alpha-pll.h"
15 #include "clk-branch.h"
16 #include "clk-rcg.h"
17 #include "clk-regmap.h"
18 #include "clk-regmap-divider.h"
19 #include "common.h"
20 #include "reset.h"
21 #include "gdsc.h"
22
23 enum {
24 P_BI_TCXO,
25 P_VIDEO_PLL0_OUT_MAIN,
26 P_VIDEO_PLL1_OUT_MAIN,
27 };
28
29 static const struct pll_vco lucid_vco[] = {
30 { 249600000, 2000000000, 0 },
31 };
32
33 static const struct alpha_pll_config video_pll0_config = {
34 .l = 0x25,
35 .alpha = 0x8000,
36 .config_ctl_val = 0x20485699,
37 .config_ctl_hi_val = 0x00002261,
38 .config_ctl_hi1_val = 0x329A699C,
39 .user_ctl_val = 0x00000000,
40 .user_ctl_hi_val = 0x00000805,
41 .user_ctl_hi1_val = 0x00000000,
42 };
43
44 static struct clk_alpha_pll video_pll0 = {
45 .offset = 0x42c,
46 .vco_table = lucid_vco,
47 .num_vco = ARRAY_SIZE(lucid_vco),
48 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
49 .clkr = {
50 .hw.init = &(struct clk_init_data){
51 .name = "video_pll0",
52 .parent_data = &(const struct clk_parent_data){
53 .fw_name = "bi_tcxo",
54 },
55 .num_parents = 1,
56 .ops = &clk_alpha_pll_lucid_ops,
57 },
58 },
59 };
60
61 static const struct alpha_pll_config video_pll1_config = {
62 .l = 0x2B,
63 .alpha = 0xC000,
64 .config_ctl_val = 0x20485699,
65 .config_ctl_hi_val = 0x00002261,
66 .config_ctl_hi1_val = 0x329A699C,
67 .user_ctl_val = 0x00000000,
68 .user_ctl_hi_val = 0x00000805,
69 .user_ctl_hi1_val = 0x00000000,
70 };
71
72 static struct clk_alpha_pll video_pll1 = {
73 .offset = 0x7d0,
74 .vco_table = lucid_vco,
75 .num_vco = ARRAY_SIZE(lucid_vco),
76 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
77 .clkr = {
78 .hw.init = &(struct clk_init_data){
79 .name = "video_pll1",
80 .parent_data = &(const struct clk_parent_data){
81 .fw_name = "bi_tcxo",
82 },
83 .num_parents = 1,
84 .ops = &clk_alpha_pll_lucid_ops,
85 },
86 },
87 };
88
89 static const struct parent_map video_cc_parent_map_1[] = {
90 { P_BI_TCXO, 0 },
91 { P_VIDEO_PLL0_OUT_MAIN, 1 },
92 };
93
94 static const struct clk_parent_data video_cc_parent_data_1[] = {
95 { .fw_name = "bi_tcxo" },
96 { .hw = &video_pll0.clkr.hw },
97 };
98
99 static const struct parent_map video_cc_parent_map_2[] = {
100 { P_BI_TCXO, 0 },
101 { P_VIDEO_PLL1_OUT_MAIN, 1 },
102 };
103
104 static const struct clk_parent_data video_cc_parent_data_2[] = {
105 { .fw_name = "bi_tcxo" },
106 { .hw = &video_pll1.clkr.hw },
107 };
108
109 static const struct freq_tbl ftbl_video_cc_mvs0_clk_src[] = {
110 F(19200000, P_BI_TCXO, 1, 0, 0),
111 F(720000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
112 F(1014000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
113 F(1098000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
114 F(1332000000, P_VIDEO_PLL0_OUT_MAIN, 1, 0, 0),
115 { }
116 };
117
118 static struct clk_rcg2 video_cc_mvs0_clk_src = {
119 .cmd_rcgr = 0xb94,
120 .mnd_width = 0,
121 .hid_width = 5,
122 .parent_map = video_cc_parent_map_1,
123 .freq_tbl = ftbl_video_cc_mvs0_clk_src,
124 .clkr.hw.init = &(struct clk_init_data){
125 .name = "video_cc_mvs0_clk_src",
126 .parent_data = video_cc_parent_data_1,
127 .num_parents = ARRAY_SIZE(video_cc_parent_data_1),
128 .flags = CLK_SET_RATE_PARENT,
129 .ops = &clk_rcg2_shared_ops,
130 },
131 };
132
133 static const struct freq_tbl ftbl_video_cc_mvs1_clk_src[] = {
134 F(19200000, P_BI_TCXO, 1, 0, 0),
135 F(840000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
136 F(1098000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
137 F(1332000000, P_VIDEO_PLL1_OUT_MAIN, 1, 0, 0),
138 { }
139 };
140
141 static struct clk_rcg2 video_cc_mvs1_clk_src = {
142 .cmd_rcgr = 0xbb4,
143 .mnd_width = 0,
144 .hid_width = 5,
145 .parent_map = video_cc_parent_map_2,
146 .freq_tbl = ftbl_video_cc_mvs1_clk_src,
147 .clkr.hw.init = &(struct clk_init_data){
148 .name = "video_cc_mvs1_clk_src",
149 .parent_data = video_cc_parent_data_2,
150 .num_parents = ARRAY_SIZE(video_cc_parent_data_2),
151 .flags = CLK_SET_RATE_PARENT,
152 .ops = &clk_rcg2_shared_ops,
153 },
154 };
155
156 static struct clk_regmap_div video_cc_mvs0c_div2_div_clk_src = {
157 .reg = 0xc54,
158 .shift = 0,
159 .width = 2,
160 .clkr.hw.init = &(struct clk_init_data) {
161 .name = "video_cc_mvs0c_div2_div_clk_src",
162 .parent_hws = (const struct clk_hw*[]){
163 &video_cc_mvs0_clk_src.clkr.hw,
164 },
165 .num_parents = 1,
166 .flags = CLK_SET_RATE_PARENT,
167 .ops = &clk_regmap_div_ro_ops,
168 },
169 };
170
171 static struct clk_regmap_div video_cc_mvs0_div_clk_src = {
172 .reg = 0xd54,
173 .shift = 0,
174 .width = 2,
175 .clkr.hw.init = &(struct clk_init_data) {
176 .name = "video_cc_mvs0_div_clk_src",
177 .parent_hws = (const struct clk_hw*[]){
178 &video_cc_mvs0_clk_src.clkr.hw,
179 },
180 .num_parents = 1,
181 .flags = CLK_SET_RATE_PARENT,
182 .ops = &clk_regmap_div_ro_ops,
183 },
184 };
185
186 static struct clk_regmap_div video_cc_mvs1c_div2_div_clk_src = {
187 .reg = 0xcf4,
188 .shift = 0,
189 .width = 2,
190 .clkr.hw.init = &(struct clk_init_data) {
191 .name = "video_cc_mvs1c_div2_div_clk_src",
192 .parent_hws = (const struct clk_hw*[]){
193 &video_cc_mvs1_clk_src.clkr.hw,
194 },
195 .num_parents = 1,
196 .flags = CLK_SET_RATE_PARENT,
197 .ops = &clk_regmap_div_ro_ops,
198 },
199 };
200
201 static struct clk_branch video_cc_mvs0c_clk = {
202 .halt_reg = 0xc34,
203 .halt_check = BRANCH_HALT,
204 .clkr = {
205 .enable_reg = 0xc34,
206 .enable_mask = BIT(0),
207 .hw.init = &(struct clk_init_data){
208 .name = "video_cc_mvs0c_clk",
209 .parent_hws = (const struct clk_hw*[]){
210 &video_cc_mvs0c_div2_div_clk_src.clkr.hw,
211 },
212 .num_parents = 1,
213 .flags = CLK_SET_RATE_PARENT,
214 .ops = &clk_branch2_ops,
215 },
216 },
217 };
218
219 static struct clk_branch video_cc_mvs0_clk = {
220 .halt_reg = 0xd34,
221 .halt_check = BRANCH_HALT_VOTED,
222 .clkr = {
223 .enable_reg = 0xd34,
224 .enable_mask = BIT(0),
225 .hw.init = &(struct clk_init_data){
226 .name = "video_cc_mvs0_clk",
227 .parent_hws = (const struct clk_hw*[]){
228 &video_cc_mvs0_div_clk_src.clkr.hw,
229 },
230 .num_parents = 1,
231 .flags = CLK_SET_RATE_PARENT,
232 .ops = &clk_branch2_ops,
233 },
234 },
235 };
236
237 static struct clk_branch video_cc_mvs1_div2_clk = {
238 .halt_reg = 0xdf4,
239 .halt_check = BRANCH_HALT_VOTED,
240 .clkr = {
241 .enable_reg = 0xdf4,
242 .enable_mask = BIT(0),
243 .hw.init = &(struct clk_init_data){
244 .name = "video_cc_mvs1_div2_clk",
245 .parent_hws = (const struct clk_hw*[]){
246 &video_cc_mvs1c_div2_div_clk_src.clkr.hw,
247 },
248 .num_parents = 1,
249 .flags = CLK_SET_RATE_PARENT,
250 .ops = &clk_branch2_ops,
251 },
252 },
253 };
254
255 static struct clk_branch video_cc_mvs1c_clk = {
256 .halt_reg = 0xcd4,
257 .halt_check = BRANCH_HALT_VOTED,
258 .clkr = {
259 .enable_reg = 0xcd4,
260 .enable_mask = BIT(0),
261 .hw.init = &(struct clk_init_data){
262 .name = "video_cc_mvs1c_clk",
263 .parent_hws = (const struct clk_hw*[]){
264 &video_cc_mvs1c_div2_div_clk_src.clkr.hw,
265 },
266 .num_parents = 1,
267 .flags = CLK_SET_RATE_PARENT,
268 .ops = &clk_branch2_ops,
269 },
270 },
271 };
272
273 static struct gdsc mvs0c_gdsc = {
274 .gdscr = 0xbf8,
275 .pd = {
276 .name = "mvs0c_gdsc",
277 },
278 .flags = 0,
279 .pwrsts = PWRSTS_OFF_ON,
280 };
281
282 static struct gdsc mvs1c_gdsc = {
283 .gdscr = 0xc98,
284 .pd = {
285 .name = "mvs1c_gdsc",
286 },
287 .flags = 0,
288 .pwrsts = PWRSTS_OFF_ON,
289 };
290
291 static struct gdsc mvs0_gdsc = {
292 .gdscr = 0xd18,
293 .pd = {
294 .name = "mvs0_gdsc",
295 },
296 .flags = HW_CTRL_TRIGGER,
297 .pwrsts = PWRSTS_OFF_ON,
298 };
299
300 static struct gdsc mvs1_gdsc = {
301 .gdscr = 0xd98,
302 .pd = {
303 .name = "mvs1_gdsc",
304 },
305 .flags = HW_CTRL_TRIGGER,
306 .pwrsts = PWRSTS_OFF_ON,
307 };
308
309 static struct clk_regmap *video_cc_sm8250_clocks[] = {
310 [VIDEO_CC_MVS0_CLK] = &video_cc_mvs0_clk.clkr,
311 [VIDEO_CC_MVS0_CLK_SRC] = &video_cc_mvs0_clk_src.clkr,
312 [VIDEO_CC_MVS0_DIV_CLK_SRC] = &video_cc_mvs0_div_clk_src.clkr,
313 [VIDEO_CC_MVS0C_CLK] = &video_cc_mvs0c_clk.clkr,
314 [VIDEO_CC_MVS0C_DIV2_DIV_CLK_SRC] = &video_cc_mvs0c_div2_div_clk_src.clkr,
315 [VIDEO_CC_MVS1_CLK_SRC] = &video_cc_mvs1_clk_src.clkr,
316 [VIDEO_CC_MVS1_DIV2_CLK] = &video_cc_mvs1_div2_clk.clkr,
317 [VIDEO_CC_MVS1C_CLK] = &video_cc_mvs1c_clk.clkr,
318 [VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC] = &video_cc_mvs1c_div2_div_clk_src.clkr,
319 [VIDEO_CC_PLL0] = &video_pll0.clkr,
320 [VIDEO_CC_PLL1] = &video_pll1.clkr,
321 };
322
323 static const struct qcom_reset_map video_cc_sm8250_resets[] = {
324 [VIDEO_CC_CVP_INTERFACE_BCR] = { 0xe54 },
325 [VIDEO_CC_CVP_MVS0_BCR] = { 0xd14 },
326 [VIDEO_CC_MVS0C_CLK_ARES] = { 0xc34, .bit = 2, .udelay = 150 },
327 [VIDEO_CC_CVP_MVS0C_BCR] = { 0xbf4 },
328 [VIDEO_CC_CVP_MVS1_BCR] = { 0xd94 },
329 [VIDEO_CC_MVS1C_CLK_ARES] = { 0xcd4, .bit = 2, .udelay = 150 },
330 [VIDEO_CC_CVP_MVS1C_BCR] = { 0xc94 },
331 };
332
333 static struct gdsc *video_cc_sm8250_gdscs[] = {
334 [MVS0C_GDSC] = &mvs0c_gdsc,
335 [MVS1C_GDSC] = &mvs1c_gdsc,
336 [MVS0_GDSC] = &mvs0_gdsc,
337 [MVS1_GDSC] = &mvs1_gdsc,
338 };
339
340 static const struct regmap_config video_cc_sm8250_regmap_config = {
341 .reg_bits = 32,
342 .reg_stride = 4,
343 .val_bits = 32,
344 .max_register = 0xf4c,
345 .fast_io = true,
346 };
347
348 static const struct qcom_cc_desc video_cc_sm8250_desc = {
349 .config = &video_cc_sm8250_regmap_config,
350 .clks = video_cc_sm8250_clocks,
351 .num_clks = ARRAY_SIZE(video_cc_sm8250_clocks),
352 .resets = video_cc_sm8250_resets,
353 .num_resets = ARRAY_SIZE(video_cc_sm8250_resets),
354 .gdscs = video_cc_sm8250_gdscs,
355 .num_gdscs = ARRAY_SIZE(video_cc_sm8250_gdscs),
356 };
357
358 static const struct of_device_id video_cc_sm8250_match_table[] = {
359 { .compatible = "qcom,sm8250-videocc" },
360 { }
361 };
362 MODULE_DEVICE_TABLE(of, video_cc_sm8250_match_table);
363
video_cc_sm8250_probe(struct platform_device * pdev)364 static int video_cc_sm8250_probe(struct platform_device *pdev)
365 {
366 struct regmap *regmap;
367 int ret;
368
369 ret = devm_pm_runtime_enable(&pdev->dev);
370 if (ret)
371 return ret;
372
373 ret = pm_runtime_resume_and_get(&pdev->dev);
374 if (ret)
375 return ret;
376
377 regmap = qcom_cc_map(pdev, &video_cc_sm8250_desc);
378 if (IS_ERR(regmap)) {
379 pm_runtime_put(&pdev->dev);
380 return PTR_ERR(regmap);
381 }
382
383 clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config);
384 clk_lucid_pll_configure(&video_pll1, regmap, &video_pll1_config);
385
386 /* Keep some clocks always-on */
387 qcom_branch_set_clk_en(regmap, 0xe58); /* VIDEO_CC_AHB_CLK */
388 qcom_branch_set_clk_en(regmap, 0xeec); /* VIDEO_CC_XO_CLK */
389
390 ret = qcom_cc_really_probe(&pdev->dev, &video_cc_sm8250_desc, regmap);
391
392 pm_runtime_put(&pdev->dev);
393
394 return ret;
395 }
396
397 static struct platform_driver video_cc_sm8250_driver = {
398 .probe = video_cc_sm8250_probe,
399 .driver = {
400 .name = "sm8250-videocc",
401 .of_match_table = video_cc_sm8250_match_table,
402 },
403 };
404
405 module_platform_driver(video_cc_sm8250_driver);
406
407 MODULE_LICENSE("GPL v2");
408 MODULE_DESCRIPTION("QTI VIDEOCC SM8250 Driver");
409