gpucc-sm6150.c 16 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637
  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
  4. * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
  5. */
  6. #include <linux/clk-provider.h>
  7. #include <linux/err.h>
  8. #include <linux/kernel.h>
  9. #include <linux/module.h>
  10. #include <linux/of_device.h>
  11. #include <linux/of.h>
  12. #include <linux/regmap.h>
  13. #include <dt-bindings/clock/qcom,gpucc-sm6150.h>
  14. #include "clk-alpha-pll.h"
  15. #include "clk-branch.h"
  16. #include "clk-pm.h"
  17. #include "clk-rcg.h"
  18. #include "clk-regmap.h"
  19. #include "common.h"
  20. #include "vdd-level-sm6150.h"
  21. static DEFINE_VDD_REGULATORS(vdd_cx, VDD_NUM, 1, vdd_corner);
  22. static DEFINE_VDD_REGULATORS(vdd_mx, VDD_NUM, 1, vdd_corner);
  23. enum {
  24. P_BI_TCXO,
  25. P_GPLL0_OUT_MAIN,
  26. P_GPLL0_OUT_MAIN_DIV,
  27. P_GPU_CC_PLL0_2X_CLK,
  28. P_CRC_DIV_PLL0_OUT_AUX2,
  29. P_GPU_CC_PLL0_OUT_MAIN,
  30. P_GPU_CC_PLL1_OUT_AUX,
  31. P_CRC_DIV_PLL1_OUT_AUX2,
  32. P_GPU_CC_PLL1_OUT_MAIN,
  33. };
  34. static struct pll_vco gpu_cc_pll0_vco[] = {
  35. { 1000000000, 2000000000, 0 },
  36. };
  37. static struct pll_vco gpu_cc_pll1_vco[] = {
  38. { 500000000, 1000000000, 2 },
  39. };
  40. /* 1020MHz configuration */
  41. static struct alpha_pll_config gpu_pll0_config = {
  42. .l = 0x35,
  43. .config_ctl_val = 0x4001055b,
  44. .test_ctl_hi_val = 0x1,
  45. .test_ctl_hi_mask = 0x1,
  46. .alpha_hi = 0x20,
  47. .alpha = 0x00,
  48. .alpha_en_mask = BIT(24),
  49. .vco_val = 0x0 << 20,
  50. .vco_mask = 0x3 << 20,
  51. .aux2_output_mask = BIT(2),
  52. };
  53. static struct clk_init_data gpu_cc_pll0_sa6155 = {
  54. .name = "gpu_cc_pll0",
  55. .parent_data = &(const struct clk_parent_data){
  56. .fw_name = "bi_tcxo",
  57. },
  58. .num_parents = 1,
  59. .ops = &clk_alpha_pll_slew_ops,
  60. };
  61. static struct clk_alpha_pll gpu_cc_pll0 = {
  62. .offset = 0x0,
  63. .vco_table = gpu_cc_pll0_vco,
  64. .num_vco = ARRAY_SIZE(gpu_cc_pll0_vco),
  65. .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
  66. .flags = SUPPORTS_DYNAMIC_UPDATE,
  67. .config = &gpu_pll0_config,
  68. .clkr = {
  69. .hw.init = &(struct clk_init_data){
  70. .name = "gpu_cc_pll0",
  71. .parent_data = &(const struct clk_parent_data){
  72. .fw_name = "bi_tcxo",
  73. },
  74. .num_parents = 1,
  75. .ops = &clk_alpha_pll_ops,
  76. },
  77. .vdd_data = {
  78. .vdd_class = &vdd_mx,
  79. .num_rate_max = VDD_NUM,
  80. .rate_max = (unsigned long[VDD_NUM]) {
  81. [VDD_MIN] = 1100000000,
  82. [VDD_NOMINAL] = 2000000000},
  83. },
  84. },
  85. };
  86. /* 930MHz configuration */
  87. static struct alpha_pll_config gpu_pll1_config = {
  88. .l = 0x30,
  89. .config_ctl_val = 0x4001055b,
  90. .test_ctl_hi_val = 0x1,
  91. .test_ctl_hi_mask = 0x1,
  92. .alpha_hi = 0x70,
  93. .alpha = 0x00,
  94. .alpha_en_mask = BIT(24),
  95. .vco_val = 0x2 << 20,
  96. .vco_mask = 0x3 << 20,
  97. .aux2_output_mask = BIT(2),
  98. };
  99. static struct clk_init_data gpu_cc_pll1_sa6155 = {
  100. .name = "gpu_cc_pll1",
  101. .parent_data = &(const struct clk_parent_data){
  102. .fw_name = "bi_tcxo",
  103. },
  104. .num_parents = 1,
  105. .ops = &clk_alpha_pll_slew_ops,
  106. };
  107. static struct clk_alpha_pll gpu_cc_pll1 = {
  108. .offset = 0x100,
  109. .vco_table = gpu_cc_pll1_vco,
  110. .num_vco = ARRAY_SIZE(gpu_cc_pll1_vco),
  111. .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
  112. .flags = SUPPORTS_DYNAMIC_UPDATE,
  113. .config = &gpu_pll1_config,
  114. .clkr = {
  115. .hw.init = &(struct clk_init_data){
  116. .name = "gpu_cc_pll1",
  117. .parent_data = &(const struct clk_parent_data){
  118. .fw_name = "bi_tcxo",
  119. },
  120. .num_parents = 1,
  121. .ops = &clk_alpha_pll_ops,
  122. },
  123. .vdd_data = {
  124. .vdd_class = &vdd_mx,
  125. .num_rate_max = VDD_NUM,
  126. .rate_max = (unsigned long[VDD_NUM]) {
  127. [VDD_MIN] = 1100000000,
  128. [VDD_NOMINAL] = 2000000000},
  129. },
  130. },
  131. };
  132. static struct clk_fixed_factor crc_div_pll0 = {
  133. .mult = 1,
  134. .div = 2,
  135. .hw.init = &(struct clk_init_data){
  136. .name = "crc_div_pll0",
  137. .parent_data = &(const struct clk_parent_data){
  138. .hw = &gpu_cc_pll0.clkr.hw,
  139. },
  140. .num_parents = 1,
  141. .flags = CLK_SET_RATE_PARENT,
  142. .ops = &clk_fixed_factor_ops,
  143. },
  144. };
  145. static struct clk_fixed_factor crc_div_pll1 = {
  146. .mult = 1,
  147. .div = 2,
  148. .hw.init = &(struct clk_init_data){
  149. .name = "crc_div_pll1",
  150. .parent_data = &(const struct clk_parent_data){
  151. .hw = &gpu_cc_pll1.clkr.hw,
  152. },
  153. .num_parents = 1,
  154. .flags = CLK_SET_RATE_PARENT,
  155. .ops = &clk_fixed_factor_ops,
  156. },
  157. };
  158. static const struct parent_map gpu_cc_parent_map_0[] = {
  159. { P_BI_TCXO, 0 },
  160. { P_GPU_CC_PLL0_OUT_MAIN, 1 },
  161. { P_GPU_CC_PLL1_OUT_MAIN, 3 },
  162. { P_GPLL0_OUT_MAIN, 5 },
  163. { P_GPLL0_OUT_MAIN_DIV, 6 },
  164. };
  165. static const struct clk_parent_data gpu_cc_parent_data_0[] = {
  166. { .fw_name = "bi_tcxo"},
  167. { .hw = &gpu_cc_pll0.clkr.hw },
  168. { .hw = &gpu_cc_pll1.clkr.hw },
  169. { .fw_name = "gpll0"},
  170. { .fw_name = "gpll0_out_main_div"},
  171. };
  172. static const struct parent_map gpu_cc_parent_map_1[] = {
  173. { P_BI_TCXO, 0 },
  174. { P_GPU_CC_PLL0_2X_CLK, 1 },
  175. { P_CRC_DIV_PLL0_OUT_AUX2, 2 },
  176. { P_GPU_CC_PLL1_OUT_AUX, 3 },
  177. { P_CRC_DIV_PLL1_OUT_AUX2, 4 },
  178. { P_GPLL0_OUT_MAIN, 5 },
  179. };
  180. static const struct clk_parent_data gpu_cc_parent_data_1[] = {
  181. { .fw_name = "bi_tcxo"},
  182. { .hw = &gpu_cc_pll0.clkr.hw },
  183. { .hw = &crc_div_pll0.hw },
  184. { .hw = &gpu_cc_pll1.clkr.hw },
  185. { .hw = &crc_div_pll1.hw },
  186. { .fw_name = "gpll0"},
  187. };
  188. static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
  189. F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
  190. { }
  191. };
  192. static struct clk_rcg2 gpu_cc_gmu_clk_src = {
  193. .cmd_rcgr = 0x1120,
  194. .mnd_width = 0,
  195. .hid_width = 5,
  196. .parent_map = gpu_cc_parent_map_0,
  197. .freq_tbl = ftbl_gpu_cc_gmu_clk_src,
  198. .enable_safe_config = true,
  199. .clkr.hw.init = &(struct clk_init_data){
  200. .name = "gpu_cc_gmu_clk_src",
  201. .parent_data = gpu_cc_parent_data_0,
  202. .num_parents = ARRAY_SIZE(gpu_cc_parent_data_0),
  203. .ops = &clk_rcg2_ops,
  204. },
  205. .clkr.vdd_data = {
  206. .vdd_class = &vdd_cx,
  207. .num_rate_max = VDD_NUM,
  208. .rate_max = (unsigned long[VDD_NUM]) {
  209. [VDD_LOWER] = 200000000},
  210. },
  211. };
  212. static const struct freq_tbl ftbl_gpu_cc_gx_gfx3d_clk_src[] = {
  213. F(290000000, P_CRC_DIV_PLL1_OUT_AUX2, 1, 0, 0),
  214. F(350000000, P_CRC_DIV_PLL1_OUT_AUX2, 1, 0, 0),
  215. F(435000000, P_CRC_DIV_PLL1_OUT_AUX2, 1, 0, 0),
  216. F(500000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  217. F(550000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  218. F(650000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  219. F(700000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  220. F(745000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  221. F(845000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  222. F(895000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  223. { }
  224. };
  225. static const struct freq_tbl ftbl_sa6155_gpu_cc_gx_gfx3d_clk_src[] = {
  226. F(290000000, P_CRC_DIV_PLL1_OUT_AUX2, 1, 0, 0),
  227. F(350000000, P_CRC_DIV_PLL1_OUT_AUX2, 1, 0, 0),
  228. F(435000000, P_CRC_DIV_PLL1_OUT_AUX2, 1, 0, 0),
  229. F(500000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  230. F(550000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  231. F(650000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  232. F(700000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  233. F(745000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  234. F(845000000, P_CRC_DIV_PLL0_OUT_AUX2, 1, 0, 0),
  235. { }
  236. };
  237. static struct clk_rcg2 gpu_cc_gx_gfx3d_clk_src = {
  238. .cmd_rcgr = 0x101c,
  239. .mnd_width = 0,
  240. .hid_width = 5,
  241. .parent_map = gpu_cc_parent_map_1,
  242. .freq_tbl = ftbl_gpu_cc_gx_gfx3d_clk_src,
  243. .enable_safe_config = true,
  244. .flags = FORCE_ENABLE_RCG,
  245. .clkr.hw.init = &(struct clk_init_data){
  246. .name = "gpu_cc_gx_gfx3d_clk_src",
  247. .parent_data = gpu_cc_parent_data_1,
  248. .num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
  249. .flags = CLK_SET_RATE_PARENT,
  250. .ops = &clk_rcg2_ops,
  251. },
  252. .clkr.vdd_data = {
  253. .vdd_class = &vdd_cx,
  254. .num_rate_max = VDD_NUM,
  255. .rate_max = (unsigned long[VDD_NUM]) {
  256. [VDD_LOWER] = 290000000,
  257. [VDD_LOW] = 435000000,
  258. [VDD_LOW_L1] = 550000000,
  259. [VDD_NOMINAL] = 700000000,
  260. [VDD_NOMINAL_L1] = 745000000,
  261. [VDD_HIGH] = 845000000,
  262. [VDD_HIGH_L1] = 895000000},
  263. },
  264. };
  265. static struct clk_branch gpu_cc_crc_ahb_clk = {
  266. .halt_reg = 0x107c,
  267. .halt_check = BRANCH_HALT_VOTED,
  268. .clkr = {
  269. .enable_reg = 0x107c,
  270. .enable_mask = BIT(0),
  271. .hw.init = &(struct clk_init_data){
  272. .name = "gpu_cc_crc_ahb_clk",
  273. .ops = &clk_branch2_ops,
  274. },
  275. },
  276. };
  277. static struct clk_branch gpu_cc_cx_gfx3d_clk = {
  278. .halt_reg = 0x10a4,
  279. .halt_check = BRANCH_HALT_DELAY,
  280. .clkr = {
  281. .enable_reg = 0x10a4,
  282. .enable_mask = BIT(0),
  283. .hw.init = &(struct clk_init_data){
  284. .name = "gpu_cc_cx_gfx3d_clk",
  285. .parent_data = &(const struct clk_parent_data){
  286. .hw = &gpu_cc_gx_gfx3d_clk_src.clkr.hw,
  287. },
  288. .num_parents = 1,
  289. .flags = CLK_SET_RATE_PARENT,
  290. .ops = &clk_branch2_ops,
  291. },
  292. },
  293. };
  294. static struct clk_branch gpu_cc_cx_gfx3d_slv_clk = {
  295. .halt_reg = 0x10a8,
  296. .halt_check = BRANCH_HALT,
  297. .clkr = {
  298. .enable_reg = 0x10a8,
  299. .enable_mask = BIT(0),
  300. .hw.init = &(struct clk_init_data){
  301. .name = "gpu_cc_cx_gfx3d_slv_clk",
  302. .parent_data = &(const struct clk_parent_data){
  303. .hw = &gpu_cc_gx_gfx3d_clk_src.clkr.hw,
  304. },
  305. .num_parents = 1,
  306. .flags = CLK_SET_RATE_PARENT,
  307. .ops = &clk_branch2_ops,
  308. },
  309. },
  310. };
  311. static struct clk_branch gpu_cc_cx_gmu_clk = {
  312. .halt_reg = 0x1098,
  313. .halt_check = BRANCH_HALT,
  314. .clkr = {
  315. .enable_reg = 0x1098,
  316. .enable_mask = BIT(0),
  317. .hw.init = &(struct clk_init_data){
  318. .name = "gpu_cc_cx_gmu_clk",
  319. .parent_data = &(const struct clk_parent_data){
  320. .hw = &gpu_cc_gmu_clk_src.clkr.hw,
  321. },
  322. .num_parents = 1,
  323. .flags = CLK_SET_RATE_PARENT,
  324. .ops = &clk_branch2_ops,
  325. },
  326. },
  327. };
  328. static struct clk_branch gpu_cc_cx_snoc_dvm_clk = {
  329. .halt_reg = 0x108c,
  330. .halt_check = BRANCH_HALT_VOTED,
  331. .clkr = {
  332. .enable_reg = 0x108c,
  333. .enable_mask = BIT(0),
  334. .hw.init = &(struct clk_init_data){
  335. .name = "gpu_cc_cx_snoc_dvm_clk",
  336. .ops = &clk_branch2_ops,
  337. },
  338. },
  339. };
  340. static struct clk_branch gpu_cc_cxo_aon_clk = {
  341. .halt_reg = 0x1004,
  342. .halt_check = BRANCH_HALT_VOTED,
  343. .clkr = {
  344. .enable_reg = 0x1004,
  345. .enable_mask = BIT(0),
  346. .hw.init = &(struct clk_init_data){
  347. .name = "gpu_cc_cxo_aon_clk",
  348. .ops = &clk_branch2_ops,
  349. },
  350. },
  351. };
  352. /* CLK_DONT_HOLD_STATE flag is needed due to sync_state */
  353. static struct clk_branch gpu_cc_cxo_clk = {
  354. .halt_reg = 0x109c,
  355. .halt_check = BRANCH_HALT,
  356. .clkr = {
  357. .enable_reg = 0x109c,
  358. .enable_mask = BIT(0),
  359. .hw.init = &(struct clk_init_data){
  360. .name = "gpu_cc_cxo_clk",
  361. .flags = CLK_DONT_HOLD_STATE,
  362. .ops = &clk_branch2_ops,
  363. },
  364. },
  365. };
  366. static struct clk_branch gpu_cc_gx_gfx3d_clk = {
  367. .halt_reg = 0x1054,
  368. .halt_check = BRANCH_HALT_SKIP,
  369. .clkr = {
  370. .enable_reg = 0x1054,
  371. .enable_mask = BIT(0),
  372. .hw.init = &(struct clk_init_data){
  373. .name = "gpu_cc_gx_gfx3d_clk",
  374. .parent_data = &(const struct clk_parent_data){
  375. .hw = &gpu_cc_gx_gfx3d_clk_src.clkr.hw,
  376. },
  377. .num_parents = 1,
  378. .flags = CLK_SET_RATE_PARENT,
  379. .ops = &clk_branch2_ops,
  380. },
  381. },
  382. };
  383. static struct clk_branch gpu_cc_gx_gmu_clk = {
  384. .halt_reg = 0x1064,
  385. .halt_check = BRANCH_HALT,
  386. .clkr = {
  387. .enable_reg = 0x1064,
  388. .enable_mask = BIT(0),
  389. .hw.init = &(struct clk_init_data){
  390. .name = "gpu_cc_gx_gmu_clk",
  391. .parent_data = &(const struct clk_parent_data){
  392. .hw = &gpu_cc_gmu_clk_src.clkr.hw,
  393. },
  394. .num_parents = 1,
  395. .flags = CLK_SET_RATE_PARENT,
  396. .ops = &clk_branch2_ops,
  397. },
  398. },
  399. };
  400. static struct clk_branch gpu_cc_hlos1_vote_gpu_smmu_clk = {
  401. .halt_reg = 0x5000,
  402. .halt_check = BRANCH_VOTED,
  403. .clkr = {
  404. .enable_reg = 0x5000,
  405. .enable_mask = BIT(0),
  406. .hw.init = &(struct clk_init_data){
  407. .name = "gpu_cc_hlos1_vote_gpu_smmu_clk",
  408. .ops = &clk_branch2_ops,
  409. },
  410. },
  411. };
  412. static struct clk_branch gpu_cc_sleep_clk = {
  413. .halt_reg = 0x1090,
  414. .halt_check = BRANCH_HALT_VOTED,
  415. .clkr = {
  416. .enable_reg = 0x1090,
  417. .enable_mask = BIT(0),
  418. .hw.init = &(struct clk_init_data){
  419. .name = "gpu_cc_sleep_clk",
  420. .ops = &clk_branch2_ops,
  421. },
  422. },
  423. };
  424. struct clk_hw *gpu_cc_sm6150_hws[] = {
  425. [CRC_DIV_PLL0] = &crc_div_pll0.hw,
  426. [CRC_DIV_PLL1] = &crc_div_pll1.hw,
  427. };
  428. static struct clk_regmap *gpu_cc_sm6150_clocks[] = {
  429. [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
  430. [GPU_CC_CX_GFX3D_CLK] = &gpu_cc_cx_gfx3d_clk.clkr,
  431. [GPU_CC_CX_GFX3D_SLV_CLK] = &gpu_cc_cx_gfx3d_slv_clk.clkr,
  432. [GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
  433. [GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr,
  434. [GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr,
  435. [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
  436. [GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
  437. [GPU_CC_GX_GFX3D_CLK] = &gpu_cc_gx_gfx3d_clk.clkr,
  438. [GPU_CC_GX_GFX3D_CLK_SRC] = &gpu_cc_gx_gfx3d_clk_src.clkr,
  439. [GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
  440. [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
  441. [GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
  442. [GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
  443. [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr,
  444. };
  445. static const struct regmap_config gpu_cc_sm6150_regmap_config = {
  446. .reg_bits = 32,
  447. .reg_stride = 4,
  448. .val_bits = 32,
  449. .max_register = 0x7008,
  450. .fast_io = true,
  451. };
  452. static struct critical_clk_offset critical_clk_list[] = {
  453. { .offset = 0x1078, .mask = 0x1 },
  454. { .offset = 0x1098, .mask = 0xff0 },
  455. { .offset = 0x1028, .mask = 0x00015011 },
  456. { .offset = 0x1024, .mask = 0x00800000 },
  457. };
  458. static struct qcom_cc_desc gpu_cc_sm6150_desc = {
  459. .config = &gpu_cc_sm6150_regmap_config,
  460. .clks = gpu_cc_sm6150_clocks,
  461. .num_clks = ARRAY_SIZE(gpu_cc_sm6150_clocks),
  462. .clk_hws = gpu_cc_sm6150_hws,
  463. .num_clk_hws = ARRAY_SIZE(gpu_cc_sm6150_hws),
  464. .critical_clk_en = critical_clk_list,
  465. .num_critical_clk = ARRAY_SIZE(critical_clk_list),
  466. };
  467. static const struct of_device_id gpu_cc_sm6150_match_table[] = {
  468. { .compatible = "qcom,sm6150-gpucc" },
  469. { .compatible = "qcom,sa6155-gpucc" },
  470. { }
  471. };
  472. MODULE_DEVICE_TABLE(of, gpu_cc_sm6150_match_table);
  473. static void configure_crc(struct regmap *regmap)
  474. {
  475. unsigned int value, mask;
  476. /* Recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */
  477. mask = 0xf << 8;
  478. mask |= 0xf << 4;
  479. value = 0xf << 8 | 0xf << 4;
  480. regmap_update_bits(regmap, gpu_cc_cx_gmu_clk.clkr.enable_reg,
  481. mask, value);
  482. /*
  483. * After POR, Clock Ramp Controller(CRC) will be in bypass mode.
  484. * Software needs to do the following operation to enable the CRC
  485. * for GFX3D clock and divide the input clock by div by 2.
  486. */
  487. regmap_update_bits(regmap, 0x1028, 0x00015011, 0x00015011);
  488. regmap_update_bits(regmap, 0x1024, 0x00800000, 0x00800000);
  489. }
  490. static void gpucc_sm6150_fixup_sa6155(struct platform_device *pdev)
  491. {
  492. vdd_cx.num_levels = VDD_NUM_SA6155;
  493. vdd_cx.cur_level = VDD_NUM_SA6155;
  494. vdd_mx.num_levels = VDD_NUM_SA6155;
  495. vdd_mx.cur_level = VDD_NUM_SA6155;
  496. gpu_cc_gx_gfx3d_clk_src.clkr.vdd_data.rate_max[VDD_HIGH_L1] = 0;
  497. gpu_cc_gx_gfx3d_clk_src.freq_tbl = ftbl_sa6155_gpu_cc_gx_gfx3d_clk_src;
  498. gpu_cc_pll0.clkr.hw.init = &gpu_cc_pll0_sa6155;
  499. gpu_cc_pll0.flags = SUPPORTS_SLEW;
  500. gpu_cc_pll1.clkr.hw.init = &gpu_cc_pll1_sa6155;
  501. gpu_cc_pll1.flags = SUPPORTS_SLEW;
  502. }
  503. static int gpu_cc_sm6150_probe(struct platform_device *pdev)
  504. {
  505. struct regmap *regmap;
  506. int ret, is_sa6155;
  507. /* Get CX voltage regulator for CX and GMU clocks. */
  508. vdd_cx.regulator[0] = devm_regulator_get(&pdev->dev, "vdd_cx");
  509. if (IS_ERR(vdd_cx.regulator[0])) {
  510. if (!(PTR_ERR(vdd_cx.regulator[0]) == -EPROBE_DEFER))
  511. dev_err(&pdev->dev,
  512. "Unable to get vdd_cx regulator\n");
  513. return PTR_ERR(vdd_cx.regulator[0]);
  514. }
  515. /* Get MX voltage regulator for GPU PLL graphic clock. */
  516. vdd_mx.regulator[0] = devm_regulator_get(&pdev->dev, "vdd_mx");
  517. if (IS_ERR(vdd_mx.regulator[0])) {
  518. if (!(PTR_ERR(vdd_mx.regulator[0]) == -EPROBE_DEFER))
  519. dev_err(&pdev->dev,
  520. "Unable to get vdd_mx regulator\n");
  521. return PTR_ERR(vdd_mx.regulator[0]);
  522. }
  523. is_sa6155 = of_device_is_compatible(pdev->dev.of_node,
  524. "qcom,sa6155-gpucc");
  525. if (is_sa6155)
  526. gpucc_sm6150_fixup_sa6155(pdev);
  527. regmap = qcom_cc_map(pdev, &gpu_cc_sm6150_desc);
  528. if (IS_ERR(regmap)) {
  529. pr_err("Failed to map the gpu_cc registers\n");
  530. return PTR_ERR(regmap);
  531. }
  532. clk_alpha_pll_configure(&gpu_cc_pll0, regmap, gpu_cc_pll0.config);
  533. clk_alpha_pll_configure(&gpu_cc_pll1, regmap, gpu_cc_pll1.config);
  534. /*
  535. * Keep clocks always enabled:
  536. * gpu_cc_ahb_clk
  537. */
  538. regmap_update_bits(regmap, 0x1078, BIT(0), BIT(0));
  539. ret = qcom_cc_really_probe(pdev, &gpu_cc_sm6150_desc, regmap);
  540. if (ret) {
  541. dev_err(&pdev->dev, "Failed to register GPU CC clocks\n");
  542. return ret;
  543. }
  544. ret = register_qcom_clks_pm(pdev, false, &gpu_cc_sm6150_desc);
  545. if (ret)
  546. dev_err(&pdev->dev, "GPU CC failed to register for pm ops\n");
  547. configure_crc(regmap);
  548. dev_info(&pdev->dev, "Registered GPU CC clocks\n");
  549. return ret;
  550. }
  551. static void gpu_cc_sm6150_sync_state(struct device *dev)
  552. {
  553. qcom_cc_sync_state(dev, &gpu_cc_sm6150_desc);
  554. }
  555. static struct platform_driver gpu_cc_sm6150_driver = {
  556. .probe = gpu_cc_sm6150_probe,
  557. .driver = {
  558. .name = "gpu_cc-sm6150",
  559. .of_match_table = gpu_cc_sm6150_match_table,
  560. .sync_state = gpu_cc_sm6150_sync_state,
  561. },
  562. };
  563. static int __init gpu_cc_sm6150_init(void)
  564. {
  565. return platform_driver_register(&gpu_cc_sm6150_driver);
  566. }
  567. subsys_initcall(gpu_cc_sm6150_init);
  568. static void __exit gpu_cc_sm6150_exit(void)
  569. {
  570. platform_driver_unregister(&gpu_cc_sm6150_driver);
  571. }
  572. module_exit(gpu_cc_sm6150_exit);
  573. MODULE_DESCRIPTION("QTI GPU_CC SM6150 Driver");
  574. MODULE_LICENSE("GPL");