2 * Copyright (c) 2014, The Linux Foundation. All rights reserved.
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 #include <linux/kernel.h>
15 #include <linux/bitops.h>
16 #include <linux/err.h>
17 #include <linux/platform_device.h>
18 #include <linux/module.h>
20 #include <linux/of_device.h>
21 #include <linux/clk-provider.h>
22 #include <linux/regmap.h>
24 #include <dt-bindings/clock/qcom,lcc-msm8960.h>
27 #include "clk-regmap.h"
30 #include "clk-branch.h"
31 #include "clk-regmap-divider.h"
32 #include "clk-regmap-mux.h"
34 static struct clk_pll pll4 = {
42 .clkr.hw.init = &(struct clk_init_data){
44 .parent_names = (const char *[]){ "pxo" },
55 static const struct parent_map lcc_pxo_pll4_map[] = {
60 static const char * const lcc_pxo_pll4[] = {
65 static struct freq_tbl clk_tbl_aif_osr_492[] = {
66 { 512000, P_PLL4, 4, 1, 240 },
67 { 768000, P_PLL4, 4, 1, 160 },
68 { 1024000, P_PLL4, 4, 1, 120 },
69 { 1536000, P_PLL4, 4, 1, 80 },
70 { 2048000, P_PLL4, 4, 1, 60 },
71 { 3072000, P_PLL4, 4, 1, 40 },
72 { 4096000, P_PLL4, 4, 1, 30 },
73 { 6144000, P_PLL4, 4, 1, 20 },
74 { 8192000, P_PLL4, 4, 1, 15 },
75 { 12288000, P_PLL4, 4, 1, 10 },
76 { 24576000, P_PLL4, 4, 1, 5 },
77 { 27000000, P_PXO, 1, 0, 0 },
81 static struct freq_tbl clk_tbl_aif_osr_393[] = {
82 { 512000, P_PLL4, 4, 1, 192 },
83 { 768000, P_PLL4, 4, 1, 128 },
84 { 1024000, P_PLL4, 4, 1, 96 },
85 { 1536000, P_PLL4, 4, 1, 64 },
86 { 2048000, P_PLL4, 4, 1, 48 },
87 { 3072000, P_PLL4, 4, 1, 32 },
88 { 4096000, P_PLL4, 4, 1, 24 },
89 { 6144000, P_PLL4, 4, 1, 16 },
90 { 8192000, P_PLL4, 4, 1, 12 },
91 { 12288000, P_PLL4, 4, 1, 8 },
92 { 24576000, P_PLL4, 4, 1, 4 },
93 { 27000000, P_PXO, 1, 0, 0 },
97 static struct clk_rcg mi2s_osr_src = {
102 .mnctr_reset_bit = 7,
103 .mnctr_mode_shift = 5,
114 .parent_map = lcc_pxo_pll4_map,
116 .freq_tbl = clk_tbl_aif_osr_393,
119 .enable_mask = BIT(9),
120 .hw.init = &(struct clk_init_data){
121 .name = "mi2s_osr_src",
122 .parent_names = lcc_pxo_pll4,
125 .flags = CLK_SET_RATE_GATE,
130 static const char * const lcc_mi2s_parents[] = {
134 static struct clk_branch mi2s_osr_clk = {
137 .halt_check = BRANCH_HALT_ENABLE,
140 .enable_mask = BIT(17),
141 .hw.init = &(struct clk_init_data){
142 .name = "mi2s_osr_clk",
143 .parent_names = lcc_mi2s_parents,
145 .ops = &clk_branch_ops,
146 .flags = CLK_SET_RATE_PARENT,
151 static struct clk_regmap_div mi2s_div_clk = {
157 .enable_mask = BIT(15),
158 .hw.init = &(struct clk_init_data){
159 .name = "mi2s_div_clk",
160 .parent_names = lcc_mi2s_parents,
162 .ops = &clk_regmap_div_ops,
167 static struct clk_branch mi2s_bit_div_clk = {
170 .halt_check = BRANCH_HALT_ENABLE,
173 .enable_mask = BIT(15),
174 .hw.init = &(struct clk_init_data){
175 .name = "mi2s_bit_div_clk",
176 .parent_names = (const char *[]){ "mi2s_div_clk" },
178 .ops = &clk_branch_ops,
179 .flags = CLK_SET_RATE_PARENT,
184 static struct clk_regmap_mux mi2s_bit_clk = {
189 .hw.init = &(struct clk_init_data){
190 .name = "mi2s_bit_clk",
191 .parent_names = (const char *[]){
196 .ops = &clk_regmap_mux_closest_ops,
197 .flags = CLK_SET_RATE_PARENT,
202 #define CLK_AIF_OSR_DIV(prefix, _ns, _md, hr) \
203 static struct clk_rcg prefix##_osr_src = { \
208 .mnctr_reset_bit = 7, \
209 .mnctr_mode_shift = 5, \
215 .pre_div_shift = 3, \
216 .pre_div_width = 2, \
219 .src_sel_shift = 0, \
220 .parent_map = lcc_pxo_pll4_map, \
222 .freq_tbl = clk_tbl_aif_osr_393, \
225 .enable_mask = BIT(9), \
226 .hw.init = &(struct clk_init_data){ \
227 .name = #prefix "_osr_src", \
228 .parent_names = lcc_pxo_pll4, \
230 .ops = &clk_rcg_ops, \
231 .flags = CLK_SET_RATE_GATE, \
236 static const char * const lcc_##prefix##_parents[] = { \
237 #prefix "_osr_src", \
240 static struct clk_branch prefix##_osr_clk = { \
243 .halt_check = BRANCH_HALT_ENABLE, \
246 .enable_mask = BIT(21), \
247 .hw.init = &(struct clk_init_data){ \
248 .name = #prefix "_osr_clk", \
249 .parent_names = lcc_##prefix##_parents, \
251 .ops = &clk_branch_ops, \
252 .flags = CLK_SET_RATE_PARENT, \
257 static struct clk_regmap_div prefix##_div_clk = { \
262 .hw.init = &(struct clk_init_data){ \
263 .name = #prefix "_div_clk", \
264 .parent_names = lcc_##prefix##_parents, \
266 .ops = &clk_regmap_div_ops, \
271 static struct clk_branch prefix##_bit_div_clk = { \
274 .halt_check = BRANCH_HALT_ENABLE, \
277 .enable_mask = BIT(19), \
278 .hw.init = &(struct clk_init_data){ \
279 .name = #prefix "_bit_div_clk", \
280 .parent_names = (const char *[]){ \
284 .ops = &clk_branch_ops, \
285 .flags = CLK_SET_RATE_PARENT, \
290 static struct clk_regmap_mux prefix##_bit_clk = { \
295 .hw.init = &(struct clk_init_data){ \
296 .name = #prefix "_bit_clk", \
297 .parent_names = (const char *[]){ \
298 #prefix "_bit_div_clk", \
299 #prefix "_codec_clk", \
302 .ops = &clk_regmap_mux_closest_ops, \
303 .flags = CLK_SET_RATE_PARENT, \
308 CLK_AIF_OSR_DIV(codec_i2s_mic, 0x60, 0x64, 0x68);
309 CLK_AIF_OSR_DIV(spare_i2s_mic, 0x78, 0x7c, 0x80);
310 CLK_AIF_OSR_DIV(codec_i2s_spkr, 0x6c, 0x70, 0x74);
311 CLK_AIF_OSR_DIV(spare_i2s_spkr, 0x84, 0x88, 0x8c);
313 static struct freq_tbl clk_tbl_pcm_492[] = {
314 { 256000, P_PLL4, 4, 1, 480 },
315 { 512000, P_PLL4, 4, 1, 240 },
316 { 768000, P_PLL4, 4, 1, 160 },
317 { 1024000, P_PLL4, 4, 1, 120 },
318 { 1536000, P_PLL4, 4, 1, 80 },
319 { 2048000, P_PLL4, 4, 1, 60 },
320 { 3072000, P_PLL4, 4, 1, 40 },
321 { 4096000, P_PLL4, 4, 1, 30 },
322 { 6144000, P_PLL4, 4, 1, 20 },
323 { 8192000, P_PLL4, 4, 1, 15 },
324 { 12288000, P_PLL4, 4, 1, 10 },
325 { 24576000, P_PLL4, 4, 1, 5 },
326 { 27000000, P_PXO, 1, 0, 0 },
330 static struct freq_tbl clk_tbl_pcm_393[] = {
331 { 256000, P_PLL4, 4, 1, 384 },
332 { 512000, P_PLL4, 4, 1, 192 },
333 { 768000, P_PLL4, 4, 1, 128 },
334 { 1024000, P_PLL4, 4, 1, 96 },
335 { 1536000, P_PLL4, 4, 1, 64 },
336 { 2048000, P_PLL4, 4, 1, 48 },
337 { 3072000, P_PLL4, 4, 1, 32 },
338 { 4096000, P_PLL4, 4, 1, 24 },
339 { 6144000, P_PLL4, 4, 1, 16 },
340 { 8192000, P_PLL4, 4, 1, 12 },
341 { 12288000, P_PLL4, 4, 1, 8 },
342 { 24576000, P_PLL4, 4, 1, 4 },
343 { 27000000, P_PXO, 1, 0, 0 },
347 static struct clk_rcg pcm_src = {
352 .mnctr_reset_bit = 7,
353 .mnctr_mode_shift = 5,
364 .parent_map = lcc_pxo_pll4_map,
366 .freq_tbl = clk_tbl_pcm_393,
369 .enable_mask = BIT(9),
370 .hw.init = &(struct clk_init_data){
372 .parent_names = lcc_pxo_pll4,
375 .flags = CLK_SET_RATE_GATE,
380 static struct clk_branch pcm_clk_out = {
383 .halt_check = BRANCH_HALT_ENABLE,
386 .enable_mask = BIT(11),
387 .hw.init = &(struct clk_init_data){
388 .name = "pcm_clk_out",
389 .parent_names = (const char *[]){ "pcm_src" },
391 .ops = &clk_branch_ops,
392 .flags = CLK_SET_RATE_PARENT,
397 static struct clk_regmap_mux pcm_clk = {
402 .hw.init = &(struct clk_init_data){
404 .parent_names = (const char *[]){
409 .ops = &clk_regmap_mux_closest_ops,
410 .flags = CLK_SET_RATE_PARENT,
415 static struct clk_rcg slimbus_src = {
420 .mnctr_reset_bit = 7,
421 .mnctr_mode_shift = 5,
432 .parent_map = lcc_pxo_pll4_map,
434 .freq_tbl = clk_tbl_aif_osr_393,
437 .enable_mask = BIT(9),
438 .hw.init = &(struct clk_init_data){
439 .name = "slimbus_src",
440 .parent_names = lcc_pxo_pll4,
443 .flags = CLK_SET_RATE_GATE,
448 static const char * const lcc_slimbus_parents[] = {
452 static struct clk_branch audio_slimbus_clk = {
455 .halt_check = BRANCH_HALT_ENABLE,
458 .enable_mask = BIT(10),
459 .hw.init = &(struct clk_init_data){
460 .name = "audio_slimbus_clk",
461 .parent_names = lcc_slimbus_parents,
463 .ops = &clk_branch_ops,
464 .flags = CLK_SET_RATE_PARENT,
469 static struct clk_branch sps_slimbus_clk = {
472 .halt_check = BRANCH_HALT_ENABLE,
475 .enable_mask = BIT(12),
476 .hw.init = &(struct clk_init_data){
477 .name = "sps_slimbus_clk",
478 .parent_names = lcc_slimbus_parents,
480 .ops = &clk_branch_ops,
481 .flags = CLK_SET_RATE_PARENT,
486 static struct clk_regmap *lcc_msm8960_clks[] = {
488 [MI2S_OSR_SRC] = &mi2s_osr_src.clkr,
489 [MI2S_OSR_CLK] = &mi2s_osr_clk.clkr,
490 [MI2S_DIV_CLK] = &mi2s_div_clk.clkr,
491 [MI2S_BIT_DIV_CLK] = &mi2s_bit_div_clk.clkr,
492 [MI2S_BIT_CLK] = &mi2s_bit_clk.clkr,
493 [PCM_SRC] = &pcm_src.clkr,
494 [PCM_CLK_OUT] = &pcm_clk_out.clkr,
495 [PCM_CLK] = &pcm_clk.clkr,
496 [SLIMBUS_SRC] = &slimbus_src.clkr,
497 [AUDIO_SLIMBUS_CLK] = &audio_slimbus_clk.clkr,
498 [SPS_SLIMBUS_CLK] = &sps_slimbus_clk.clkr,
499 [CODEC_I2S_MIC_OSR_SRC] = &codec_i2s_mic_osr_src.clkr,
500 [CODEC_I2S_MIC_OSR_CLK] = &codec_i2s_mic_osr_clk.clkr,
501 [CODEC_I2S_MIC_DIV_CLK] = &codec_i2s_mic_div_clk.clkr,
502 [CODEC_I2S_MIC_BIT_DIV_CLK] = &codec_i2s_mic_bit_div_clk.clkr,
503 [CODEC_I2S_MIC_BIT_CLK] = &codec_i2s_mic_bit_clk.clkr,
504 [SPARE_I2S_MIC_OSR_SRC] = &spare_i2s_mic_osr_src.clkr,
505 [SPARE_I2S_MIC_OSR_CLK] = &spare_i2s_mic_osr_clk.clkr,
506 [SPARE_I2S_MIC_DIV_CLK] = &spare_i2s_mic_div_clk.clkr,
507 [SPARE_I2S_MIC_BIT_DIV_CLK] = &spare_i2s_mic_bit_div_clk.clkr,
508 [SPARE_I2S_MIC_BIT_CLK] = &spare_i2s_mic_bit_clk.clkr,
509 [CODEC_I2S_SPKR_OSR_SRC] = &codec_i2s_spkr_osr_src.clkr,
510 [CODEC_I2S_SPKR_OSR_CLK] = &codec_i2s_spkr_osr_clk.clkr,
511 [CODEC_I2S_SPKR_DIV_CLK] = &codec_i2s_spkr_div_clk.clkr,
512 [CODEC_I2S_SPKR_BIT_DIV_CLK] = &codec_i2s_spkr_bit_div_clk.clkr,
513 [CODEC_I2S_SPKR_BIT_CLK] = &codec_i2s_spkr_bit_clk.clkr,
514 [SPARE_I2S_SPKR_OSR_SRC] = &spare_i2s_spkr_osr_src.clkr,
515 [SPARE_I2S_SPKR_OSR_CLK] = &spare_i2s_spkr_osr_clk.clkr,
516 [SPARE_I2S_SPKR_DIV_CLK] = &spare_i2s_spkr_div_clk.clkr,
517 [SPARE_I2S_SPKR_BIT_DIV_CLK] = &spare_i2s_spkr_bit_div_clk.clkr,
518 [SPARE_I2S_SPKR_BIT_CLK] = &spare_i2s_spkr_bit_clk.clkr,
521 static const struct regmap_config lcc_msm8960_regmap_config = {
525 .max_register = 0xfc,
529 static const struct qcom_cc_desc lcc_msm8960_desc = {
530 .config = &lcc_msm8960_regmap_config,
531 .clks = lcc_msm8960_clks,
532 .num_clks = ARRAY_SIZE(lcc_msm8960_clks),
535 static const struct of_device_id lcc_msm8960_match_table[] = {
536 { .compatible = "qcom,lcc-msm8960" },
537 { .compatible = "qcom,lcc-apq8064" },
540 MODULE_DEVICE_TABLE(of, lcc_msm8960_match_table);
542 static int lcc_msm8960_probe(struct platform_device *pdev)
545 struct regmap *regmap;
547 regmap = qcom_cc_map(pdev, &lcc_msm8960_desc);
549 return PTR_ERR(regmap);
551 /* Use the correct frequency plan depending on speed of PLL4 */
552 regmap_read(regmap, 0x4, &val);
554 slimbus_src.freq_tbl = clk_tbl_aif_osr_492;
555 mi2s_osr_src.freq_tbl = clk_tbl_aif_osr_492;
556 codec_i2s_mic_osr_src.freq_tbl = clk_tbl_aif_osr_492;
557 spare_i2s_mic_osr_src.freq_tbl = clk_tbl_aif_osr_492;
558 codec_i2s_spkr_osr_src.freq_tbl = clk_tbl_aif_osr_492;
559 spare_i2s_spkr_osr_src.freq_tbl = clk_tbl_aif_osr_492;
560 pcm_src.freq_tbl = clk_tbl_pcm_492;
562 /* Enable PLL4 source on the LPASS Primary PLL Mux */
563 regmap_write(regmap, 0xc4, 0x1);
565 return qcom_cc_really_probe(pdev, &lcc_msm8960_desc, regmap);
568 static struct platform_driver lcc_msm8960_driver = {
569 .probe = lcc_msm8960_probe,
571 .name = "lcc-msm8960",
572 .of_match_table = lcc_msm8960_match_table,
575 module_platform_driver(lcc_msm8960_driver);
577 MODULE_DESCRIPTION("QCOM LCC MSM8960 Driver");
578 MODULE_LICENSE("GPL v2");
579 MODULE_ALIAS("platform:lcc-msm8960");