4 * Copyright 2012 Wolfson Microelectronics plc
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/clk.h>
14 #include <linux/delay.h>
15 #include <linux/err.h>
16 #include <linux/gpio.h>
17 #include <linux/interrupt.h>
18 #include <linux/mfd/core.h>
19 #include <linux/module.h>
21 #include <linux/of_device.h>
22 #include <linux/of_gpio.h>
23 #include <linux/pm_runtime.h>
24 #include <linux/regmap.h>
25 #include <linux/regulator/consumer.h>
26 #include <linux/regulator/machine.h>
27 #include <linux/slab.h>
28 #include <linux/platform_device.h>
30 #include <linux/mfd/arizona/core.h>
31 #include <linux/mfd/arizona/registers.h>
35 static const char * const wm5102_core_supplies[] = {
40 int arizona_clk32k_enable(struct arizona *arizona)
44 mutex_lock(&arizona->clk_lock);
46 arizona->clk32k_ref++;
48 if (arizona->clk32k_ref == 1) {
49 switch (arizona->pdata.clk32k_src) {
50 case ARIZONA_32KZ_MCLK1:
51 ret = pm_runtime_get_sync(arizona->dev);
54 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
58 case ARIZONA_32KZ_MCLK2:
59 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]);
65 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
71 pm_runtime_put_sync(arizona->dev);
74 arizona->clk32k_ref--;
76 mutex_unlock(&arizona->clk_lock);
80 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
82 int arizona_clk32k_disable(struct arizona *arizona)
84 mutex_lock(&arizona->clk_lock);
86 BUG_ON(arizona->clk32k_ref <= 0);
88 arizona->clk32k_ref--;
90 if (arizona->clk32k_ref == 0) {
91 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
92 ARIZONA_CLK_32K_ENA, 0);
94 switch (arizona->pdata.clk32k_src) {
95 case ARIZONA_32KZ_MCLK1:
96 pm_runtime_put_sync(arizona->dev);
97 clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]);
99 case ARIZONA_32KZ_MCLK2:
100 clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]);
105 mutex_unlock(&arizona->clk_lock);
109 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
111 static irqreturn_t arizona_clkgen_err(int irq, void *data)
113 struct arizona *arizona = data;
115 dev_err(arizona->dev, "CLKGEN error\n");
120 static irqreturn_t arizona_underclocked(int irq, void *data)
122 struct arizona *arizona = data;
126 ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
129 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
134 if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
135 dev_err(arizona->dev, "AIF3 underclocked\n");
136 if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
137 dev_err(arizona->dev, "AIF2 underclocked\n");
138 if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
139 dev_err(arizona->dev, "AIF1 underclocked\n");
140 if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
141 dev_err(arizona->dev, "ISRC3 underclocked\n");
142 if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
143 dev_err(arizona->dev, "ISRC2 underclocked\n");
144 if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
145 dev_err(arizona->dev, "ISRC1 underclocked\n");
146 if (val & ARIZONA_FX_UNDERCLOCKED_STS)
147 dev_err(arizona->dev, "FX underclocked\n");
148 if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
149 dev_err(arizona->dev, "ASRC underclocked\n");
150 if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
151 dev_err(arizona->dev, "DAC underclocked\n");
152 if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
153 dev_err(arizona->dev, "ADC underclocked\n");
154 if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
155 dev_err(arizona->dev, "Mixer dropped sample\n");
160 static irqreturn_t arizona_overclocked(int irq, void *data)
162 struct arizona *arizona = data;
166 ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
169 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
174 switch (arizona->type) {
177 /* Some bits are shifted on WM8998,
178 * rearrange to match the standard bit layout
180 val[0] = ((val[0] & 0x60e0) >> 1) |
181 ((val[0] & 0x1e00) >> 2) |
188 if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
189 dev_err(arizona->dev, "PWM overclocked\n");
190 if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
191 dev_err(arizona->dev, "FX core overclocked\n");
192 if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
193 dev_err(arizona->dev, "DAC SYS overclocked\n");
194 if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
195 dev_err(arizona->dev, "DAC WARP overclocked\n");
196 if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
197 dev_err(arizona->dev, "ADC overclocked\n");
198 if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
199 dev_err(arizona->dev, "Mixer overclocked\n");
200 if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
201 dev_err(arizona->dev, "AIF3 overclocked\n");
202 if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
203 dev_err(arizona->dev, "AIF2 overclocked\n");
204 if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
205 dev_err(arizona->dev, "AIF1 overclocked\n");
206 if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
207 dev_err(arizona->dev, "Pad control overclocked\n");
209 if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
210 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
211 if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
212 dev_err(arizona->dev, "Slimbus async overclocked\n");
213 if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
214 dev_err(arizona->dev, "Slimbus sync overclocked\n");
215 if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
216 dev_err(arizona->dev, "ASRC async system overclocked\n");
217 if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
218 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
219 if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
220 dev_err(arizona->dev, "ASRC sync system overclocked\n");
221 if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
222 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
223 if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
224 dev_err(arizona->dev, "DSP1 overclocked\n");
225 if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
226 dev_err(arizona->dev, "ISRC3 overclocked\n");
227 if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
228 dev_err(arizona->dev, "ISRC2 overclocked\n");
229 if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
230 dev_err(arizona->dev, "ISRC1 overclocked\n");
232 if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
233 dev_err(arizona->dev, "SPDIF overclocked\n");
238 static int arizona_poll_reg(struct arizona *arizona,
239 int timeout, unsigned int reg,
240 unsigned int mask, unsigned int target)
242 unsigned int val = 0;
245 for (i = 0; i < timeout; i++) {
246 ret = regmap_read(arizona->regmap, reg, &val);
248 dev_err(arizona->dev, "Failed to read reg %u: %d\n",
253 if ((val & mask) == target)
256 usleep_range(1000, 5000);
259 dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
263 static int arizona_wait_for_boot(struct arizona *arizona)
268 * We can't use an interrupt as we need to runtime resume to do so,
269 * we won't race with the interrupt handler as it'll be blocked on
272 ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5,
273 ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
276 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
277 ARIZONA_BOOT_DONE_STS);
279 pm_runtime_mark_last_busy(arizona->dev);
284 static inline void arizona_enable_reset(struct arizona *arizona)
286 if (arizona->pdata.reset)
287 gpio_set_value_cansleep(arizona->pdata.reset, 0);
290 static void arizona_disable_reset(struct arizona *arizona)
292 if (arizona->pdata.reset) {
293 switch (arizona->type) {
296 /* Meet requirements for minimum reset duration */
297 usleep_range(5000, 10000);
303 gpio_set_value_cansleep(arizona->pdata.reset, 1);
304 usleep_range(1000, 5000);
308 struct arizona_sysclk_state {
313 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
314 struct arizona_sysclk_state *state)
318 /* Cache existing FLL and SYSCLK settings */
319 ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
321 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
325 ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
328 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
333 /* Start up SYSCLK using the FLL in free running mode */
334 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
335 ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
337 dev_err(arizona->dev,
338 "Failed to start FLL in freerunning mode: %d\n",
342 ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
343 ARIZONA_FLL1_CLOCK_OK_STS,
344 ARIZONA_FLL1_CLOCK_OK_STS);
350 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
352 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
359 err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
361 dev_err(arizona->dev,
362 "Failed to re-apply old FLL settings: %d\n", err);
367 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
368 struct arizona_sysclk_state *state)
372 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
375 dev_err(arizona->dev,
376 "Failed to re-apply old SYSCLK settings: %d\n", ret);
380 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
382 dev_err(arizona->dev,
383 "Failed to re-apply old FLL settings: %d\n", ret);
390 static int wm5102_apply_hardware_patch(struct arizona *arizona)
392 struct arizona_sysclk_state state;
395 ret = arizona_enable_freerun_sysclk(arizona, &state);
399 /* Start the write sequencer and wait for it to finish */
400 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
401 ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
403 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
408 ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
409 ARIZONA_WSEQ_BUSY, 0);
411 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
417 err = arizona_disable_freerun_sysclk(arizona, &state);
423 * Register patch to some of the CODECs internal write sequences
424 * to ensure a clean exit from the low power sleep state.
426 static const struct reg_sequence wm5110_sleep_patch[] = {
433 static int wm5110_apply_sleep_patch(struct arizona *arizona)
435 struct arizona_sysclk_state state;
438 ret = arizona_enable_freerun_sysclk(arizona, &state);
442 ret = regmap_multi_reg_write_bypassed(arizona->regmap,
444 ARRAY_SIZE(wm5110_sleep_patch));
446 err = arizona_disable_freerun_sysclk(arizona, &state);
451 static int wm5102_clear_write_sequencer(struct arizona *arizona)
455 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
458 dev_err(arizona->dev,
459 "Failed to clear write sequencer state: %d\n", ret);
463 arizona_enable_reset(arizona);
464 regulator_disable(arizona->dcvdd);
468 ret = regulator_enable(arizona->dcvdd);
470 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
473 arizona_disable_reset(arizona);
479 static int arizona_isolate_dcvdd(struct arizona *arizona)
483 ret = regmap_update_bits(arizona->regmap,
484 ARIZONA_ISOLATION_CONTROL,
485 ARIZONA_ISOLATE_DCVDD1,
486 ARIZONA_ISOLATE_DCVDD1);
488 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
493 static int arizona_connect_dcvdd(struct arizona *arizona)
497 ret = regmap_update_bits(arizona->regmap,
498 ARIZONA_ISOLATION_CONTROL,
499 ARIZONA_ISOLATE_DCVDD1, 0);
501 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
506 static int arizona_is_jack_det_active(struct arizona *arizona)
511 ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
513 dev_err(arizona->dev,
514 "Failed to check jack det status: %d\n", ret);
516 } else if (val & ARIZONA_JD1_ENA) {
523 static int arizona_runtime_resume(struct device *dev)
525 struct arizona *arizona = dev_get_drvdata(dev);
528 dev_dbg(arizona->dev, "Leaving AoD mode\n");
530 if (arizona->has_fully_powered_off) {
531 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
533 ret = regulator_bulk_enable(arizona->num_core_supplies,
534 arizona->core_supplies);
536 dev_err(dev, "Failed to enable core supplies: %d\n",
542 ret = regulator_enable(arizona->dcvdd);
544 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
545 if (arizona->has_fully_powered_off)
546 regulator_bulk_disable(arizona->num_core_supplies,
547 arizona->core_supplies);
551 if (arizona->has_fully_powered_off) {
552 arizona_disable_reset(arizona);
553 enable_irq(arizona->irq);
554 arizona->has_fully_powered_off = false;
557 regcache_cache_only(arizona->regmap, false);
559 switch (arizona->type) {
561 if (arizona->external_dcvdd) {
562 ret = arizona_connect_dcvdd(arizona);
567 ret = wm5102_patch(arizona);
569 dev_err(arizona->dev, "Failed to apply patch: %d\n",
574 ret = wm5102_apply_hardware_patch(arizona);
576 dev_err(arizona->dev,
577 "Failed to apply hardware patch: %d\n",
584 ret = arizona_wait_for_boot(arizona);
588 if (arizona->external_dcvdd) {
589 ret = arizona_connect_dcvdd(arizona);
594 * As this is only called for the internal regulator
595 * (where we know voltage ranges available) it is ok
596 * to request an exact range.
598 ret = regulator_set_voltage(arizona->dcvdd,
601 dev_err(arizona->dev,
602 "Failed to set resume voltage: %d\n",
608 ret = wm5110_apply_sleep_patch(arizona);
610 dev_err(arizona->dev,
611 "Failed to re-apply sleep patch: %d\n",
618 ret = arizona_wait_for_boot(arizona);
623 ret = arizona_wait_for_boot(arizona);
627 if (arizona->external_dcvdd) {
628 ret = arizona_connect_dcvdd(arizona);
635 ret = regcache_sync(arizona->regmap);
637 dev_err(arizona->dev, "Failed to restore register cache\n");
644 regcache_cache_only(arizona->regmap, true);
645 regulator_disable(arizona->dcvdd);
649 static int arizona_runtime_suspend(struct device *dev)
651 struct arizona *arizona = dev_get_drvdata(dev);
655 dev_dbg(arizona->dev, "Entering AoD mode\n");
657 switch (arizona->type) {
660 jd_active = arizona_is_jack_det_active(arizona);
664 if (arizona->external_dcvdd) {
665 ret = arizona_isolate_dcvdd(arizona);
670 * As this is only called for the internal regulator
671 * (where we know voltage ranges available) it is ok
672 * to request an exact range.
674 ret = regulator_set_voltage(arizona->dcvdd,
677 dev_err(arizona->dev,
678 "Failed to set suspend voltage: %d\n",
685 jd_active = arizona_is_jack_det_active(arizona);
689 if (arizona->external_dcvdd) {
690 ret = arizona_isolate_dcvdd(arizona);
696 ret = regmap_write(arizona->regmap,
697 ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
699 dev_err(arizona->dev,
700 "Failed to clear write sequencer: %d\n",
710 jd_active = arizona_is_jack_det_active(arizona);
714 if (arizona->external_dcvdd) {
715 ret = arizona_isolate_dcvdd(arizona);
722 regcache_cache_only(arizona->regmap, true);
723 regcache_mark_dirty(arizona->regmap);
724 regulator_disable(arizona->dcvdd);
726 /* Allow us to completely power down if no jack detection */
728 dev_dbg(arizona->dev, "Fully powering off\n");
730 arizona->has_fully_powered_off = true;
732 disable_irq_nosync(arizona->irq);
733 arizona_enable_reset(arizona);
734 regulator_bulk_disable(arizona->num_core_supplies,
735 arizona->core_supplies);
742 #ifdef CONFIG_PM_SLEEP
743 static int arizona_suspend(struct device *dev)
745 struct arizona *arizona = dev_get_drvdata(dev);
747 dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
748 disable_irq(arizona->irq);
753 static int arizona_suspend_noirq(struct device *dev)
755 struct arizona *arizona = dev_get_drvdata(dev);
757 dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
758 enable_irq(arizona->irq);
763 static int arizona_resume_noirq(struct device *dev)
765 struct arizona *arizona = dev_get_drvdata(dev);
767 dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
768 disable_irq(arizona->irq);
773 static int arizona_resume(struct device *dev)
775 struct arizona *arizona = dev_get_drvdata(dev);
777 dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
778 enable_irq(arizona->irq);
784 const struct dev_pm_ops arizona_pm_ops = {
785 SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
786 arizona_runtime_resume,
788 SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
789 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
790 arizona_resume_noirq)
792 EXPORT_SYMBOL_GPL(arizona_pm_ops);
795 unsigned long arizona_of_get_type(struct device *dev)
797 const struct of_device_id *id = of_match_device(arizona_of_match, dev);
800 return (unsigned long)id->data;
804 EXPORT_SYMBOL_GPL(arizona_of_get_type);
806 int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,
811 gpio = of_get_named_gpio(arizona->dev->of_node, prop, 0);
814 dev_err(arizona->dev,
815 "Mandatory DT gpio %s missing/malformed: %d\n",
823 EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio);
825 static int arizona_of_get_core_pdata(struct arizona *arizona)
827 struct arizona_pdata *pdata = &arizona->pdata;
828 struct property *prop;
834 pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true);
836 ret = of_property_read_u32_array(arizona->dev->of_node,
838 pdata->gpio_defaults,
839 ARRAY_SIZE(pdata->gpio_defaults));
842 * All values are literal except out of range values
843 * which are chip default, translate into platform
844 * data which uses 0 as chip default and out of range
847 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
848 if (pdata->gpio_defaults[i] > 0xffff)
849 pdata->gpio_defaults[i] = 0;
850 else if (pdata->gpio_defaults[i] == 0)
851 pdata->gpio_defaults[i] = 0x10000;
854 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
858 of_property_for_each_u32(arizona->dev->of_node, "wlf,inmode", prop,
860 if (count == ARRAY_SIZE(pdata->inmode))
863 pdata->inmode[count] = val;
868 of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop,
870 if (count == ARRAY_SIZE(pdata->dmic_ref))
873 pdata->dmic_ref[count] = val;
878 of_property_for_each_u32(arizona->dev->of_node, "wlf,out-mono", prop,
880 if (count == ARRAY_SIZE(pdata->out_mono))
883 pdata->out_mono[count] = !!val;
890 const struct of_device_id arizona_of_match[] = {
891 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
892 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
893 { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
894 { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
895 { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
896 { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
897 { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
898 { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
901 EXPORT_SYMBOL_GPL(arizona_of_match);
903 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
909 static const struct mfd_cell early_devs[] = {
910 { .name = "arizona-ldo1" },
913 static const char * const wm5102_supplies[] = {
922 static const struct mfd_cell wm5102_devs[] = {
923 { .name = "arizona-micsupp" },
924 { .name = "arizona-gpio" },
926 .name = "arizona-extcon",
927 .parent_supplies = wm5102_supplies,
928 .num_parent_supplies = 1, /* We only need MICVDD */
930 { .name = "arizona-haptics" },
931 { .name = "arizona-pwm" },
933 .name = "wm5102-codec",
934 .parent_supplies = wm5102_supplies,
935 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
939 static const struct mfd_cell wm5110_devs[] = {
940 { .name = "arizona-micsupp" },
941 { .name = "arizona-gpio" },
943 .name = "arizona-extcon",
944 .parent_supplies = wm5102_supplies,
945 .num_parent_supplies = 1, /* We only need MICVDD */
947 { .name = "arizona-haptics" },
948 { .name = "arizona-pwm" },
950 .name = "wm5110-codec",
951 .parent_supplies = wm5102_supplies,
952 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
956 static const char * const cs47l24_supplies[] = {
962 static const struct mfd_cell cs47l24_devs[] = {
963 { .name = "arizona-gpio" },
964 { .name = "arizona-haptics" },
965 { .name = "arizona-pwm" },
967 .name = "cs47l24-codec",
968 .parent_supplies = cs47l24_supplies,
969 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
973 static const char * const wm8997_supplies[] = {
980 static const struct mfd_cell wm8997_devs[] = {
981 { .name = "arizona-micsupp" },
982 { .name = "arizona-gpio" },
984 .name = "arizona-extcon",
985 .parent_supplies = wm8997_supplies,
986 .num_parent_supplies = 1, /* We only need MICVDD */
988 { .name = "arizona-haptics" },
989 { .name = "arizona-pwm" },
991 .name = "wm8997-codec",
992 .parent_supplies = wm8997_supplies,
993 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
997 static const struct mfd_cell wm8998_devs[] = {
998 { .name = "arizona-micsupp" },
999 { .name = "arizona-gpio" },
1001 .name = "arizona-extcon",
1002 .parent_supplies = wm5102_supplies,
1003 .num_parent_supplies = 1, /* We only need MICVDD */
1005 { .name = "arizona-haptics" },
1006 { .name = "arizona-pwm" },
1008 .name = "wm8998-codec",
1009 .parent_supplies = wm5102_supplies,
1010 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
1014 int arizona_dev_init(struct arizona *arizona)
1016 const char * const mclk_name[] = { "mclk1", "mclk2" };
1017 struct device *dev = arizona->dev;
1018 const char *type_name = NULL;
1019 unsigned int reg, val, mask;
1020 int (*apply_patch)(struct arizona *) = NULL;
1021 const struct mfd_cell *subdevs = NULL;
1022 int n_subdevs, ret, i;
1024 dev_set_drvdata(arizona->dev, arizona);
1025 mutex_init(&arizona->clk_lock);
1027 if (dev_get_platdata(arizona->dev))
1028 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
1029 sizeof(arizona->pdata));
1031 arizona_of_get_core_pdata(arizona);
1033 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
1034 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
1035 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
1036 if (IS_ERR(arizona->mclk[i])) {
1037 dev_info(arizona->dev, "Failed to get %s: %ld\n",
1038 mclk_name[i], PTR_ERR(arizona->mclk[i]));
1039 arizona->mclk[i] = NULL;
1043 regcache_cache_only(arizona->regmap, true);
1045 switch (arizona->type) {
1054 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1055 arizona->core_supplies[i].supply
1056 = wm5102_core_supplies[i];
1057 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1060 dev_err(arizona->dev, "Unknown device type %d\n",
1065 /* Mark DCVDD as external, LDO1 driver will clear if internal */
1066 arizona->external_dcvdd = true;
1068 switch (arizona->type) {
1071 break; /* No LDO1 regulator */
1073 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1074 ARRAY_SIZE(early_devs), NULL, 0, NULL);
1076 dev_err(dev, "Failed to add early children: %d\n", ret);
1082 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1083 arizona->core_supplies);
1085 dev_err(dev, "Failed to request core supplies: %d\n",
1091 * Don't use devres here because the only device we have to get
1092 * against is the MFD device and DCVDD will likely be supplied by
1093 * one of its children. Meaning that the regulator will be
1094 * destroyed by the time devres calls regulator put.
1096 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1097 if (IS_ERR(arizona->dcvdd)) {
1098 ret = PTR_ERR(arizona->dcvdd);
1099 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1103 if (arizona->pdata.reset) {
1104 /* Start out with /RESET low to put the chip into reset */
1105 ret = devm_gpio_request_one(arizona->dev, arizona->pdata.reset,
1106 GPIOF_DIR_OUT | GPIOF_INIT_LOW,
1109 dev_err(dev, "Failed to request /RESET: %d\n", ret);
1114 ret = regulator_bulk_enable(arizona->num_core_supplies,
1115 arizona->core_supplies);
1117 dev_err(dev, "Failed to enable core supplies: %d\n",
1122 ret = regulator_enable(arizona->dcvdd);
1124 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1128 arizona_disable_reset(arizona);
1130 regcache_cache_only(arizona->regmap, false);
1132 /* Verify that this is a chip we know about */
1133 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1135 dev_err(dev, "Failed to read ID register: %d\n", ret);
1147 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1152 /* If we have a /RESET GPIO we'll already be reset */
1153 if (!arizona->pdata.reset) {
1154 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1156 dev_err(dev, "Failed to reset device: %d\n", ret);
1160 usleep_range(1000, 5000);
1163 /* Ensure device startup is complete */
1164 switch (arizona->type) {
1166 ret = regmap_read(arizona->regmap,
1167 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1170 "Failed to check write sequencer state: %d\n",
1172 } else if (val & 0x01) {
1173 ret = wm5102_clear_write_sequencer(arizona);
1182 ret = arizona_wait_for_boot(arizona);
1184 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1188 /* Read the device ID information & do device specific stuff */
1189 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1191 dev_err(dev, "Failed to read ID register: %d\n", ret);
1195 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1198 dev_err(dev, "Failed to read revision register: %d\n", ret);
1201 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1205 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1206 type_name = "WM5102";
1207 if (arizona->type != WM5102) {
1208 dev_warn(arizona->dev,
1209 "WM5102 registered as %d\n",
1211 arizona->type = WM5102;
1214 apply_patch = wm5102_patch;
1215 arizona->rev &= 0x7;
1216 subdevs = wm5102_devs;
1217 n_subdevs = ARRAY_SIZE(wm5102_devs);
1221 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1222 switch (arizona->type) {
1224 type_name = "WM5110";
1227 type_name = "WM8280";
1230 type_name = "WM5110";
1231 dev_warn(arizona->dev,
1232 "WM5110 registered as %d\n",
1234 arizona->type = WM5110;
1238 apply_patch = wm5110_patch;
1239 subdevs = wm5110_devs;
1240 n_subdevs = ARRAY_SIZE(wm5110_devs);
1244 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1245 switch (arizona->type) {
1247 type_name = "CS47L24";
1251 type_name = "WM1831";
1255 dev_warn(arizona->dev,
1256 "CS47L24 registered as %d\n",
1258 arizona->type = CS47L24;
1262 apply_patch = cs47l24_patch;
1263 subdevs = cs47l24_devs;
1264 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1268 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1269 type_name = "WM8997";
1270 if (arizona->type != WM8997) {
1271 dev_warn(arizona->dev,
1272 "WM8997 registered as %d\n",
1274 arizona->type = WM8997;
1277 apply_patch = wm8997_patch;
1278 subdevs = wm8997_devs;
1279 n_subdevs = ARRAY_SIZE(wm8997_devs);
1283 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1284 switch (arizona->type) {
1286 type_name = "WM8998";
1290 type_name = "WM1814";
1294 type_name = "WM8998";
1295 dev_warn(arizona->dev,
1296 "WM8998 registered as %d\n",
1298 arizona->type = WM8998;
1301 apply_patch = wm8998_patch;
1302 subdevs = wm8998_devs;
1303 n_subdevs = ARRAY_SIZE(wm8998_devs);
1307 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1313 dev_err(arizona->dev,
1314 "No kernel support for device ID %x\n", reg);
1319 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1322 ret = apply_patch(arizona);
1324 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1329 switch (arizona->type) {
1331 ret = wm5102_apply_hardware_patch(arizona);
1333 dev_err(arizona->dev,
1334 "Failed to apply hardware patch: %d\n",
1341 ret = wm5110_apply_sleep_patch(arizona);
1343 dev_err(arizona->dev,
1344 "Failed to apply sleep patch: %d\n",
1354 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1355 if (!arizona->pdata.gpio_defaults[i])
1358 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1359 arizona->pdata.gpio_defaults[i]);
1363 if (!arizona->pdata.clk32k_src)
1364 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1366 switch (arizona->pdata.clk32k_src) {
1367 case ARIZONA_32KZ_MCLK1:
1368 case ARIZONA_32KZ_MCLK2:
1369 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1370 ARIZONA_CLK_32K_SRC_MASK,
1371 arizona->pdata.clk32k_src - 1);
1372 arizona_clk32k_enable(arizona);
1374 case ARIZONA_32KZ_NONE:
1375 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1376 ARIZONA_CLK_32K_SRC_MASK, 2);
1379 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1380 arizona->pdata.clk32k_src);
1385 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1386 if (!arizona->pdata.micbias[i].mV &&
1387 !arizona->pdata.micbias[i].bypass)
1390 /* Apply default for bypass mode */
1391 if (!arizona->pdata.micbias[i].mV)
1392 arizona->pdata.micbias[i].mV = 2800;
1394 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1396 val <<= ARIZONA_MICB1_LVL_SHIFT;
1398 if (arizona->pdata.micbias[i].ext_cap)
1399 val |= ARIZONA_MICB1_EXT_CAP;
1401 if (arizona->pdata.micbias[i].discharge)
1402 val |= ARIZONA_MICB1_DISCH;
1404 if (arizona->pdata.micbias[i].soft_start)
1405 val |= ARIZONA_MICB1_RATE;
1407 if (arizona->pdata.micbias[i].bypass)
1408 val |= ARIZONA_MICB1_BYPASS;
1410 regmap_update_bits(arizona->regmap,
1411 ARIZONA_MIC_BIAS_CTRL_1 + i,
1412 ARIZONA_MICB1_LVL_MASK |
1413 ARIZONA_MICB1_EXT_CAP |
1414 ARIZONA_MICB1_DISCH |
1415 ARIZONA_MICB1_BYPASS |
1416 ARIZONA_MICB1_RATE, val);
1419 for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
1420 /* Default for both is 0 so noop with defaults */
1421 val = arizona->pdata.dmic_ref[i]
1422 << ARIZONA_IN1_DMIC_SUP_SHIFT;
1423 if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC)
1424 val |= 1 << ARIZONA_IN1_MODE_SHIFT;
1426 switch (arizona->type) {
1429 regmap_update_bits(arizona->regmap,
1430 ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 8),
1431 ARIZONA_IN1L_SRC_SE_MASK,
1432 (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1433 << ARIZONA_IN1L_SRC_SE_SHIFT);
1435 regmap_update_bits(arizona->regmap,
1436 ARIZONA_ADC_DIGITAL_VOLUME_1R + (i * 8),
1437 ARIZONA_IN1R_SRC_SE_MASK,
1438 (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1439 << ARIZONA_IN1R_SRC_SE_SHIFT);
1441 mask = ARIZONA_IN1_DMIC_SUP_MASK |
1442 ARIZONA_IN1_MODE_MASK;
1445 if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1446 val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT;
1448 mask = ARIZONA_IN1_DMIC_SUP_MASK |
1449 ARIZONA_IN1_MODE_MASK |
1450 ARIZONA_IN1_SINGLE_ENDED_MASK;
1454 regmap_update_bits(arizona->regmap,
1455 ARIZONA_IN1L_CONTROL + (i * 8),
1459 for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
1460 /* Default is 0 so noop with defaults */
1461 if (arizona->pdata.out_mono[i])
1462 val = ARIZONA_OUT1_MONO;
1466 regmap_update_bits(arizona->regmap,
1467 ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
1468 ARIZONA_OUT1_MONO, val);
1471 for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
1472 if (arizona->pdata.spk_mute[i])
1473 regmap_update_bits(arizona->regmap,
1474 ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
1475 ARIZONA_SPK1_MUTE_ENDIAN_MASK |
1476 ARIZONA_SPK1_MUTE_SEQ1_MASK,
1477 arizona->pdata.spk_mute[i]);
1479 if (arizona->pdata.spk_fmt[i])
1480 regmap_update_bits(arizona->regmap,
1481 ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
1482 ARIZONA_SPK1_FMT_MASK,
1483 arizona->pdata.spk_fmt[i]);
1486 pm_runtime_set_active(arizona->dev);
1487 pm_runtime_enable(arizona->dev);
1489 /* Set up for interrupts */
1490 ret = arizona_irq_init(arizona);
1494 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1495 pm_runtime_use_autosuspend(arizona->dev);
1497 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1498 arizona_clkgen_err, arizona);
1499 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1500 arizona_overclocked, arizona);
1501 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1502 arizona_underclocked, arizona);
1504 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1505 subdevs, n_subdevs, NULL, 0, NULL);
1508 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1515 arizona_irq_exit(arizona);
1517 pm_runtime_disable(arizona->dev);
1519 arizona_enable_reset(arizona);
1520 regulator_disable(arizona->dcvdd);
1522 regulator_bulk_disable(arizona->num_core_supplies,
1523 arizona->core_supplies);
1525 regulator_put(arizona->dcvdd);
1527 mfd_remove_devices(dev);
1530 EXPORT_SYMBOL_GPL(arizona_dev_init);
1532 int arizona_dev_exit(struct arizona *arizona)
1534 pm_runtime_disable(arizona->dev);
1536 regulator_disable(arizona->dcvdd);
1537 regulator_put(arizona->dcvdd);
1539 mfd_remove_devices(arizona->dev);
1540 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1541 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1542 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1543 arizona_irq_exit(arizona);
1544 arizona_enable_reset(arizona);
1546 regulator_bulk_disable(arizona->num_core_supplies,
1547 arizona->core_supplies);
1550 EXPORT_SYMBOL_GPL(arizona_dev_exit);