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1// SPDX-License-Identifier: GPL-2.0
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/regmap.h>
10
11#include <dt-bindings/clock/qcom,gpucc-sm8150.h>
12
13#include "common.h"
14#include "clk-alpha-pll.h"
15#include "clk-branch.h"
16#include "clk-pll.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_CORE_BI_PLL_TEST_SE,
25 P_GPLL0_OUT_MAIN,
26 P_GPLL0_OUT_MAIN_DIV,
27 P_GPU_CC_PLL1_OUT_MAIN,
28};
29
30static const struct pll_vco trion_vco[] = {
31 { 249600000, 2000000000, 0 },
32};
33
34static struct alpha_pll_config gpu_cc_pll1_config = {
35 .l = 0x1a,
36 .alpha = 0xaaa,
37 .config_ctl_val = 0x20485699,
38 .config_ctl_hi_val = 0x00002267,
39 .config_ctl_hi1_val = 0x00000024,
40 .test_ctl_val = 0x00000000,
41 .test_ctl_hi_val = 0x00000002,
42 .test_ctl_hi1_val = 0x00000000,
43 .user_ctl_val = 0x00000000,
44 .user_ctl_hi_val = 0x00000805,
45 .user_ctl_hi1_val = 0x000000d0,
46};
47
48static struct clk_alpha_pll gpu_cc_pll1 = {
49 .offset = 0x100,
50 .vco_table = trion_vco,
51 .num_vco = ARRAY_SIZE(trion_vco),
52 .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TRION],
53 .clkr = {
54 .hw.init = &(struct clk_init_data){
55 .name = "gpu_cc_pll1",
56 .parent_data = &(const struct clk_parent_data){
57 .fw_name = "bi_tcxo",
58 },
59 .num_parents = 1,
60 .ops = &clk_alpha_pll_trion_ops,
61 },
62 },
63};
64
65static const struct parent_map gpu_cc_parent_map_0[] = {
66 { P_BI_TCXO, 0 },
67 { P_GPU_CC_PLL1_OUT_MAIN, 3 },
68 { P_GPLL0_OUT_MAIN, 5 },
69 { P_GPLL0_OUT_MAIN_DIV, 6 },
70};
71
72static const struct clk_parent_data gpu_cc_parent_data_0[] = {
73 { .fw_name = "bi_tcxo" },
74 { .hw = &gpu_cc_pll1.clkr.hw },
75 { .fw_name = "gcc_gpu_gpll0_clk_src" },
76 { .fw_name = "gcc_gpu_gpll0_div_clk_src" },
77};
78
79static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
80 F(19200000, P_BI_TCXO, 1, 0, 0),
81 F(200000000, P_GPLL0_OUT_MAIN_DIV, 1.5, 0, 0),
82 F(500000000, P_GPU_CC_PLL1_OUT_MAIN, 1, 0, 0),
83 { }
84};
85
86static struct clk_rcg2 gpu_cc_gmu_clk_src = {
87 .cmd_rcgr = 0x1120,
88 .mnd_width = 0,
89 .hid_width = 5,
90 .parent_map = gpu_cc_parent_map_0,
91 .freq_tbl = ftbl_gpu_cc_gmu_clk_src,
92 .clkr.hw.init = &(struct clk_init_data){
93 .name = "gpu_cc_gmu_clk_src",
94 .parent_data = gpu_cc_parent_data_0,
95 .num_parents = ARRAY_SIZE(gpu_cc_parent_data_0),
96 .flags = CLK_SET_RATE_PARENT,
97 .ops = &clk_rcg2_ops,
98 },
99};
100
101static struct clk_branch gpu_cc_ahb_clk = {
102 .halt_reg = 0x1078,
103 .halt_check = BRANCH_HALT_DELAY,
104 .clkr = {
105 .enable_reg = 0x1078,
106 .enable_mask = BIT(0),
107 .hw.init = &(struct clk_init_data){
108 .name = "gpu_cc_ahb_clk",
109 .ops = &clk_branch2_ops,
110 },
111 },
112};
113
114static struct clk_branch gpu_cc_crc_ahb_clk = {
115 .halt_reg = 0x107c,
116 .halt_check = BRANCH_HALT,
117 .clkr = {
118 .enable_reg = 0x107c,
119 .enable_mask = BIT(0),
120 .hw.init = &(struct clk_init_data){
121 .name = "gpu_cc_crc_ahb_clk",
122 .ops = &clk_branch2_ops,
123 },
124 },
125};
126
127static struct clk_branch gpu_cc_cx_apb_clk = {
128 .halt_reg = 0x1088,
129 .halt_check = BRANCH_HALT,
130 .clkr = {
131 .enable_reg = 0x1088,
132 .enable_mask = BIT(0),
133 .hw.init = &(struct clk_init_data){
134 .name = "gpu_cc_cx_apb_clk",
135 .ops = &clk_branch2_ops,
136 },
137 },
138};
139
140static struct clk_branch gpu_cc_cx_gmu_clk = {
141 .halt_reg = 0x1098,
142 .halt_check = BRANCH_HALT,
143 .clkr = {
144 .enable_reg = 0x1098,
145 .enable_mask = BIT(0),
146 .hw.init = &(struct clk_init_data){
147 .name = "gpu_cc_cx_gmu_clk",
148 .parent_data = &(const struct clk_parent_data){
149 .hw = &gpu_cc_gmu_clk_src.clkr.hw,
150 },
151 .num_parents = 1,
152 .flags = CLK_SET_RATE_PARENT,
153 .ops = &clk_branch2_ops,
154 },
155 },
156};
157
158static struct clk_branch gpu_cc_cx_snoc_dvm_clk = {
159 .halt_reg = 0x108c,
160 .halt_check = BRANCH_HALT,
161 .clkr = {
162 .enable_reg = 0x108c,
163 .enable_mask = BIT(0),
164 .hw.init = &(struct clk_init_data){
165 .name = "gpu_cc_cx_snoc_dvm_clk",
166 .ops = &clk_branch2_ops,
167 },
168 },
169};
170
171static struct clk_branch gpu_cc_cxo_aon_clk = {
172 .halt_reg = 0x1004,
173 .halt_check = BRANCH_HALT,
174 .clkr = {
175 .enable_reg = 0x1004,
176 .enable_mask = BIT(0),
177 .hw.init = &(struct clk_init_data){
178 .name = "gpu_cc_cxo_aon_clk",
179 .ops = &clk_branch2_ops,
180 },
181 },
182};
183
184static struct clk_branch gpu_cc_cxo_clk = {
185 .halt_reg = 0x109c,
186 .halt_check = BRANCH_HALT,
187 .clkr = {
188 .enable_reg = 0x109c,
189 .enable_mask = BIT(0),
190 .hw.init = &(struct clk_init_data){
191 .name = "gpu_cc_cxo_clk",
192 .ops = &clk_branch2_ops,
193 },
194 },
195};
196
197static struct clk_branch gpu_cc_gx_gmu_clk = {
198 .halt_reg = 0x1064,
199 .halt_check = BRANCH_HALT,
200 .clkr = {
201 .enable_reg = 0x1064,
202 .enable_mask = BIT(0),
203 .hw.init = &(struct clk_init_data){
204 .name = "gpu_cc_gx_gmu_clk",
205 .parent_data = &(const struct clk_parent_data){
206 .hw = &gpu_cc_gmu_clk_src.clkr.hw,
207 },
208 .num_parents = 1,
209 .flags = CLK_SET_RATE_PARENT,
210 .ops = &clk_branch2_ops,
211 },
212 },
213};
214
215static struct gdsc gpu_cx_gdsc = {
216 .gdscr = 0x106c,
217 .gds_hw_ctrl = 0x1540,
218 .pd = {
219 .name = "gpu_cx_gdsc",
220 },
221 .pwrsts = PWRSTS_OFF_ON,
222 .flags = VOTABLE,
223};
224
225static struct gdsc gpu_gx_gdsc = {
226 .gdscr = 0x100c,
227 .clamp_io_ctrl = 0x1508,
228 .pd = {
229 .name = "gpu_gx_gdsc",
230 .power_on = gdsc_gx_do_nothing_enable,
231 },
232 .pwrsts = PWRSTS_OFF_ON,
233 .flags = CLAMP_IO | AON_RESET | POLL_CFG_GDSCR,
234};
235
236static struct clk_regmap *gpu_cc_sm8150_clocks[] = {
237 [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
238 [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
239 [GPU_CC_CX_APB_CLK] = &gpu_cc_cx_apb_clk.clkr,
240 [GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
241 [GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr,
242 [GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr,
243 [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
244 [GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
245 [GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
246 [GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
247};
248
249static const struct qcom_reset_map gpu_cc_sm8150_resets[] = {
250 [GPUCC_GPU_CC_CX_BCR] = { 0x1068 },
251 [GPUCC_GPU_CC_GMU_BCR] = { 0x111c },
252 [GPUCC_GPU_CC_GX_BCR] = { 0x1008 },
253 [GPUCC_GPU_CC_SPDM_BCR] = { 0x1110 },
254 [GPUCC_GPU_CC_XO_BCR] = { 0x1000 },
255};
256
257static struct gdsc *gpu_cc_sm8150_gdscs[] = {
258 [GPU_CX_GDSC] = &gpu_cx_gdsc,
259 [GPU_GX_GDSC] = &gpu_gx_gdsc,
260};
261
262static const struct regmap_config gpu_cc_sm8150_regmap_config = {
263 .reg_bits = 32,
264 .reg_stride = 4,
265 .val_bits = 32,
266 .max_register = 0x8008,
267 .fast_io = true,
268};
269
270static const struct qcom_cc_desc gpu_cc_sm8150_desc = {
271 .config = &gpu_cc_sm8150_regmap_config,
272 .clks = gpu_cc_sm8150_clocks,
273 .num_clks = ARRAY_SIZE(gpu_cc_sm8150_clocks),
274 .resets = gpu_cc_sm8150_resets,
275 .num_resets = ARRAY_SIZE(gpu_cc_sm8150_resets),
276 .gdscs = gpu_cc_sm8150_gdscs,
277 .num_gdscs = ARRAY_SIZE(gpu_cc_sm8150_gdscs),
278};
279
280static const struct of_device_id gpu_cc_sm8150_match_table[] = {
281 { .compatible = "qcom,sm8150-gpucc" },
282 { }
283};
284MODULE_DEVICE_TABLE(of, gpu_cc_sm8150_match_table);
285
286static int gpu_cc_sm8150_probe(struct platform_device *pdev)
287{
288 struct regmap *regmap;
289
290 regmap = qcom_cc_map(pdev, &gpu_cc_sm8150_desc);
291 if (IS_ERR(regmap))
292 return PTR_ERR(regmap);
293
294 clk_trion_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);
295
296 return qcom_cc_really_probe(pdev, &gpu_cc_sm8150_desc, regmap);
297}
298
299static struct platform_driver gpu_cc_sm8150_driver = {
300 .probe = gpu_cc_sm8150_probe,
301 .driver = {
302 .name = "sm8150-gpucc",
303 .of_match_table = gpu_cc_sm8150_match_table,
304 },
305};
306
307static int __init gpu_cc_sm8150_init(void)
308{
309 return platform_driver_register(&gpu_cc_sm8150_driver);
310}
311subsys_initcall(gpu_cc_sm8150_init);
312
313static void __exit gpu_cc_sm8150_exit(void)
314{
315 platform_driver_unregister(&gpu_cc_sm8150_driver);
316}
317module_exit(gpu_cc_sm8150_exit);
318
319MODULE_DESCRIPTION("QTI GPUCC SM8150 Driver");
320MODULE_LICENSE("GPL v2");