1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2021, The Linux Foundation. All rights reserved.
4 * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
5 */
6
7 #include <linux/clk-provider.h>
8 #include <linux/module.h>
9 #include <linux/platform_device.h>
10 #include <linux/regmap.h>
11
12 #include <dt-bindings/clock/qcom,videocc-sc7280.h>
13
14 #include "clk-alpha-pll.h"
15 #include "clk-branch.h"
16 #include "clk-rcg.h"
17 #include "common.h"
18 #include "reset.h"
19 #include "gdsc.h"
20
21 enum {
22 P_BI_TCXO,
23 P_SLEEP_CLK,
24 P_VIDEO_PLL0_OUT_EVEN,
25 };
26
27 static const struct pll_vco lucid_vco[] = {
28 { 249600000, 2000000000, 0 },
29 };
30
31 /* 400MHz Configuration */
32 static const struct alpha_pll_config video_pll0_config = {
33 .l = 0x14,
34 .alpha = 0xD555,
35 .config_ctl_val = 0x20485699,
36 .config_ctl_hi_val = 0x00002261,
37 .config_ctl_hi1_val = 0x329A299C,
38 .user_ctl_val = 0x00000001,
39 .user_ctl_hi_val = 0x00000805,
40 .user_ctl_hi1_val = 0x00000000,
41 };
42
43 static struct clk_alpha_pll video_pll0 = {
44 .offset = 0x0,
45 .vco_table = lucid_vco,
46 .num_vco = ARRAY_SIZE(lucid_vco),
47 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
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_lucid_ops,
56 },
57 },
58 };
59
60 static const struct parent_map video_cc_parent_map_0[] = {
61 { P_BI_TCXO, 0 },
62 { P_VIDEO_PLL0_OUT_EVEN, 3 },
63 };
64
65 static const struct clk_parent_data video_cc_parent_data_0[] = {
66 { .fw_name = "bi_tcxo" },
67 { .hw = &video_pll0.clkr.hw },
68 };
69
70 static const struct parent_map video_cc_parent_map_1[] = {
71 { P_SLEEP_CLK, 0 },
72 };
73
74 static const struct clk_parent_data video_cc_parent_data_1[] = {
75 { .fw_name = "sleep_clk" },
76 };
77
78 static const struct freq_tbl ftbl_video_cc_iris_clk_src[] = {
79 F(133333333, P_VIDEO_PLL0_OUT_EVEN, 3, 0, 0),
80 F(240000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
81 F(335000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
82 F(424000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
83 F(460000000, P_VIDEO_PLL0_OUT_EVEN, 2, 0, 0),
84 { }
85 };
86
87 static struct clk_rcg2 video_cc_iris_clk_src = {
88 .cmd_rcgr = 0x1000,
89 .mnd_width = 0,
90 .hid_width = 5,
91 .parent_map = video_cc_parent_map_0,
92 .freq_tbl = ftbl_video_cc_iris_clk_src,
93 .clkr.hw.init = &(struct clk_init_data){
94 .name = "video_cc_iris_clk_src",
95 .parent_data = video_cc_parent_data_0,
96 .num_parents = ARRAY_SIZE(video_cc_parent_data_0),
97 .flags = CLK_SET_RATE_PARENT,
98 .ops = &clk_rcg2_shared_ops,
99 },
100 };
101
102 static const struct freq_tbl ftbl_video_cc_sleep_clk_src[] = {
103 F(32000, P_SLEEP_CLK, 1, 0, 0),
104 { }
105 };
106
107 static struct clk_rcg2 video_cc_sleep_clk_src = {
108 .cmd_rcgr = 0x701c,
109 .mnd_width = 0,
110 .hid_width = 5,
111 .parent_map = video_cc_parent_map_1,
112 .freq_tbl = ftbl_video_cc_sleep_clk_src,
113 .clkr.hw.init = &(struct clk_init_data){
114 .name = "video_cc_sleep_clk_src",
115 .parent_data = video_cc_parent_data_1,
116 .num_parents = ARRAY_SIZE(video_cc_parent_data_1),
117 .ops = &clk_rcg2_ops,
118 },
119 };
120
121 static struct clk_branch video_cc_iris_ahb_clk = {
122 .halt_reg = 0x5004,
123 .halt_check = BRANCH_HALT_VOTED,
124 .clkr = {
125 .enable_reg = 0x5004,
126 .enable_mask = BIT(0),
127 .hw.init = &(struct clk_init_data){
128 .name = "video_cc_iris_ahb_clk",
129 .parent_hws = (const struct clk_hw*[]){
130 &video_cc_iris_clk_src.clkr.hw,
131 },
132 .num_parents = 1,
133 .flags = CLK_SET_RATE_PARENT,
134 .ops = &clk_branch2_ops,
135 },
136 },
137 };
138
139 static struct clk_branch video_cc_mvs0_axi_clk = {
140 .halt_reg = 0x800c,
141 .halt_check = BRANCH_HALT,
142 .clkr = {
143 .enable_reg = 0x800c,
144 .enable_mask = BIT(0),
145 .hw.init = &(struct clk_init_data){
146 .name = "video_cc_mvs0_axi_clk",
147 .ops = &clk_branch2_ops,
148 },
149 },
150 };
151
152 static struct clk_branch video_cc_mvs0_core_clk = {
153 .halt_reg = 0x3010,
154 .halt_check = BRANCH_HALT_VOTED,
155 .hwcg_reg = 0x3010,
156 .hwcg_bit = 1,
157 .clkr = {
158 .enable_reg = 0x3010,
159 .enable_mask = BIT(0),
160 .hw.init = &(struct clk_init_data){
161 .name = "video_cc_mvs0_core_clk",
162 .parent_hws = (const struct clk_hw*[]){
163 &video_cc_iris_clk_src.clkr.hw,
164 },
165 .num_parents = 1,
166 .flags = CLK_SET_RATE_PARENT,
167 .ops = &clk_branch2_ops,
168 },
169 },
170 };
171
172 static struct clk_branch video_cc_mvsc_core_clk = {
173 .halt_reg = 0x2014,
174 .halt_check = BRANCH_HALT,
175 .clkr = {
176 .enable_reg = 0x2014,
177 .enable_mask = BIT(0),
178 .hw.init = &(struct clk_init_data){
179 .name = "video_cc_mvsc_core_clk",
180 .parent_hws = (const struct clk_hw*[]){
181 &video_cc_iris_clk_src.clkr.hw,
182 },
183 .num_parents = 1,
184 .flags = CLK_SET_RATE_PARENT,
185 .ops = &clk_branch2_ops,
186 },
187 },
188 };
189
190 static struct clk_branch video_cc_mvsc_ctl_axi_clk = {
191 .halt_reg = 0x8004,
192 .halt_check = BRANCH_HALT,
193 .clkr = {
194 .enable_reg = 0x8004,
195 .enable_mask = BIT(0),
196 .hw.init = &(struct clk_init_data){
197 .name = "video_cc_mvsc_ctl_axi_clk",
198 .ops = &clk_branch2_ops,
199 },
200 },
201 };
202
203 static struct clk_branch video_cc_sleep_clk = {
204 .halt_reg = 0x7034,
205 .halt_check = BRANCH_HALT,
206 .clkr = {
207 .enable_reg = 0x7034,
208 .enable_mask = BIT(0),
209 .hw.init = &(struct clk_init_data){
210 .name = "video_cc_sleep_clk",
211 .parent_hws = (const struct clk_hw*[]){
212 &video_cc_sleep_clk_src.clkr.hw,
213 },
214 .num_parents = 1,
215 .flags = CLK_SET_RATE_PARENT,
216 .ops = &clk_branch2_ops,
217 },
218 },
219 };
220
221 static struct clk_branch video_cc_venus_ahb_clk = {
222 .halt_reg = 0x801c,
223 .halt_check = BRANCH_HALT,
224 .clkr = {
225 .enable_reg = 0x801c,
226 .enable_mask = BIT(0),
227 .hw.init = &(struct clk_init_data){
228 .name = "video_cc_venus_ahb_clk",
229 .ops = &clk_branch2_ops,
230 },
231 },
232 };
233
234 static struct gdsc mvs0_gdsc = {
235 .gdscr = 0x3004,
236 .en_rest_wait_val = 0x2,
237 .en_few_wait_val = 0x2,
238 .clk_dis_wait_val = 0x6,
239 .pd = {
240 .name = "mvs0_gdsc",
241 },
242 .pwrsts = PWRSTS_OFF_ON,
243 .flags = HW_CTRL_TRIGGER | RETAIN_FF_ENABLE,
244 };
245
246 static struct gdsc mvsc_gdsc = {
247 .gdscr = 0x2004,
248 .en_rest_wait_val = 0x2,
249 .en_few_wait_val = 0x2,
250 .clk_dis_wait_val = 0x6,
251 .pd = {
252 .name = "mvsc_gdsc",
253 },
254 .flags = RETAIN_FF_ENABLE,
255 .pwrsts = PWRSTS_OFF_ON,
256 };
257
258 static struct clk_regmap *video_cc_sc7280_clocks[] = {
259 [VIDEO_CC_IRIS_AHB_CLK] = &video_cc_iris_ahb_clk.clkr,
260 [VIDEO_CC_IRIS_CLK_SRC] = &video_cc_iris_clk_src.clkr,
261 [VIDEO_CC_MVS0_AXI_CLK] = &video_cc_mvs0_axi_clk.clkr,
262 [VIDEO_CC_MVS0_CORE_CLK] = &video_cc_mvs0_core_clk.clkr,
263 [VIDEO_CC_MVSC_CORE_CLK] = &video_cc_mvsc_core_clk.clkr,
264 [VIDEO_CC_MVSC_CTL_AXI_CLK] = &video_cc_mvsc_ctl_axi_clk.clkr,
265 [VIDEO_CC_SLEEP_CLK] = &video_cc_sleep_clk.clkr,
266 [VIDEO_CC_SLEEP_CLK_SRC] = &video_cc_sleep_clk_src.clkr,
267 [VIDEO_CC_VENUS_AHB_CLK] = &video_cc_venus_ahb_clk.clkr,
268 [VIDEO_PLL0] = &video_pll0.clkr,
269 };
270
271 static struct gdsc *video_cc_sc7280_gdscs[] = {
272 [MVS0_GDSC] = &mvs0_gdsc,
273 [MVSC_GDSC] = &mvsc_gdsc,
274 };
275
276 static const struct regmap_config video_cc_sc7280_regmap_config = {
277 .reg_bits = 32,
278 .reg_stride = 4,
279 .val_bits = 32,
280 .max_register = 0xb000,
281 .fast_io = true,
282 };
283
284 static const struct qcom_cc_desc video_cc_sc7280_desc = {
285 .config = &video_cc_sc7280_regmap_config,
286 .clks = video_cc_sc7280_clocks,
287 .num_clks = ARRAY_SIZE(video_cc_sc7280_clocks),
288 .gdscs = video_cc_sc7280_gdscs,
289 .num_gdscs = ARRAY_SIZE(video_cc_sc7280_gdscs),
290 };
291
292 static const struct of_device_id video_cc_sc7280_match_table[] = {
293 { .compatible = "qcom,sc7280-videocc" },
294 { }
295 };
296 MODULE_DEVICE_TABLE(of, video_cc_sc7280_match_table);
297
video_cc_sc7280_probe(struct platform_device * pdev)298 static int video_cc_sc7280_probe(struct platform_device *pdev)
299 {
300 struct regmap *regmap;
301
302 regmap = qcom_cc_map(pdev, &video_cc_sc7280_desc);
303 if (IS_ERR(regmap))
304 return PTR_ERR(regmap);
305
306 clk_lucid_pll_configure(&video_pll0, regmap, &video_pll0_config);
307
308 return qcom_cc_really_probe(&pdev->dev, &video_cc_sc7280_desc, regmap);
309 }
310
311 static struct platform_driver video_cc_sc7280_driver = {
312 .probe = video_cc_sc7280_probe,
313 .driver = {
314 .name = "video_cc-sc7280",
315 .of_match_table = video_cc_sc7280_match_table,
316 },
317 };
318
319 module_platform_driver(video_cc_sc7280_driver);
320
321 MODULE_DESCRIPTION("QTI VIDEO_CC sc7280 Driver");
322 MODULE_LICENSE("GPL v2");
323