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]);
56 pm_runtime_put_sync(arizona->dev);
60 case ARIZONA_32KZ_MCLK2:
61 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]);
67 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
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 #define ARIZONA_REG_POLL_DELAY_US 7500
240 static int arizona_poll_reg(struct arizona *arizona,
241 int timeout_ms, unsigned int reg,
242 unsigned int mask, unsigned int target)
244 unsigned int val = 0;
247 ret = regmap_read_poll_timeout(arizona->regmap,
248 reg, val, ((val & mask) == target),
249 ARIZONA_REG_POLL_DELAY_US,
252 dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n",
258 static int arizona_wait_for_boot(struct arizona *arizona)
263 * We can't use an interrupt as we need to runtime resume to do so,
264 * we won't race with the interrupt handler as it'll be blocked on
267 ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
268 ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
271 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
272 ARIZONA_BOOT_DONE_STS);
274 pm_runtime_mark_last_busy(arizona->dev);
279 static inline void arizona_enable_reset(struct arizona *arizona)
281 if (arizona->pdata.reset)
282 gpio_set_value_cansleep(arizona->pdata.reset, 0);
285 static void arizona_disable_reset(struct arizona *arizona)
287 if (arizona->pdata.reset) {
288 switch (arizona->type) {
291 /* Meet requirements for minimum reset duration */
292 usleep_range(5000, 10000);
298 gpio_set_value_cansleep(arizona->pdata.reset, 1);
299 usleep_range(1000, 5000);
303 struct arizona_sysclk_state {
308 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
309 struct arizona_sysclk_state *state)
313 /* Cache existing FLL and SYSCLK settings */
314 ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
316 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
320 ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
323 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
328 /* Start up SYSCLK using the FLL in free running mode */
329 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
330 ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
332 dev_err(arizona->dev,
333 "Failed to start FLL in freerunning mode: %d\n",
337 ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
338 ARIZONA_FLL1_CLOCK_OK_STS,
339 ARIZONA_FLL1_CLOCK_OK_STS);
343 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
345 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
352 err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
354 dev_err(arizona->dev,
355 "Failed to re-apply old FLL settings: %d\n", err);
360 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
361 struct arizona_sysclk_state *state)
365 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
368 dev_err(arizona->dev,
369 "Failed to re-apply old SYSCLK settings: %d\n", ret);
373 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
375 dev_err(arizona->dev,
376 "Failed to re-apply old FLL settings: %d\n", ret);
383 static int wm5102_apply_hardware_patch(struct arizona *arizona)
385 struct arizona_sysclk_state state;
388 ret = arizona_enable_freerun_sysclk(arizona, &state);
392 /* Start the write sequencer and wait for it to finish */
393 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
394 ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
396 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
401 ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
402 ARIZONA_WSEQ_BUSY, 0);
404 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
408 err = arizona_disable_freerun_sysclk(arizona, &state);
414 * Register patch to some of the CODECs internal write sequences
415 * to ensure a clean exit from the low power sleep state.
417 static const struct reg_sequence wm5110_sleep_patch[] = {
424 static int wm5110_apply_sleep_patch(struct arizona *arizona)
426 struct arizona_sysclk_state state;
429 ret = arizona_enable_freerun_sysclk(arizona, &state);
433 ret = regmap_multi_reg_write_bypassed(arizona->regmap,
435 ARRAY_SIZE(wm5110_sleep_patch));
437 err = arizona_disable_freerun_sysclk(arizona, &state);
442 static int wm5102_clear_write_sequencer(struct arizona *arizona)
446 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
449 dev_err(arizona->dev,
450 "Failed to clear write sequencer state: %d\n", ret);
454 arizona_enable_reset(arizona);
455 regulator_disable(arizona->dcvdd);
459 ret = regulator_enable(arizona->dcvdd);
461 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
464 arizona_disable_reset(arizona);
470 static int arizona_isolate_dcvdd(struct arizona *arizona)
474 ret = regmap_update_bits(arizona->regmap,
475 ARIZONA_ISOLATION_CONTROL,
476 ARIZONA_ISOLATE_DCVDD1,
477 ARIZONA_ISOLATE_DCVDD1);
479 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
484 static int arizona_connect_dcvdd(struct arizona *arizona)
488 ret = regmap_update_bits(arizona->regmap,
489 ARIZONA_ISOLATION_CONTROL,
490 ARIZONA_ISOLATE_DCVDD1, 0);
492 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
497 static int arizona_is_jack_det_active(struct arizona *arizona)
502 ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
504 dev_err(arizona->dev,
505 "Failed to check jack det status: %d\n", ret);
507 } else if (val & ARIZONA_JD1_ENA) {
514 static int arizona_runtime_resume(struct device *dev)
516 struct arizona *arizona = dev_get_drvdata(dev);
519 dev_dbg(arizona->dev, "Leaving AoD mode\n");
521 if (arizona->has_fully_powered_off) {
522 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
524 ret = regulator_bulk_enable(arizona->num_core_supplies,
525 arizona->core_supplies);
527 dev_err(dev, "Failed to enable core supplies: %d\n",
533 ret = regulator_enable(arizona->dcvdd);
535 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
536 if (arizona->has_fully_powered_off)
537 regulator_bulk_disable(arizona->num_core_supplies,
538 arizona->core_supplies);
542 if (arizona->has_fully_powered_off) {
543 arizona_disable_reset(arizona);
544 enable_irq(arizona->irq);
545 arizona->has_fully_powered_off = false;
548 regcache_cache_only(arizona->regmap, false);
550 switch (arizona->type) {
552 if (arizona->external_dcvdd) {
553 ret = arizona_connect_dcvdd(arizona);
558 ret = wm5102_patch(arizona);
560 dev_err(arizona->dev, "Failed to apply patch: %d\n",
565 ret = wm5102_apply_hardware_patch(arizona);
567 dev_err(arizona->dev,
568 "Failed to apply hardware patch: %d\n",
575 ret = arizona_wait_for_boot(arizona);
579 if (arizona->external_dcvdd) {
580 ret = arizona_connect_dcvdd(arizona);
585 * As this is only called for the internal regulator
586 * (where we know voltage ranges available) it is ok
587 * to request an exact range.
589 ret = regulator_set_voltage(arizona->dcvdd,
592 dev_err(arizona->dev,
593 "Failed to set resume voltage: %d\n",
599 ret = wm5110_apply_sleep_patch(arizona);
601 dev_err(arizona->dev,
602 "Failed to re-apply sleep patch: %d\n",
609 ret = arizona_wait_for_boot(arizona);
614 ret = arizona_wait_for_boot(arizona);
618 if (arizona->external_dcvdd) {
619 ret = arizona_connect_dcvdd(arizona);
626 ret = regcache_sync(arizona->regmap);
628 dev_err(arizona->dev, "Failed to restore register cache\n");
635 regcache_cache_only(arizona->regmap, true);
636 regulator_disable(arizona->dcvdd);
640 static int arizona_runtime_suspend(struct device *dev)
642 struct arizona *arizona = dev_get_drvdata(dev);
646 dev_dbg(arizona->dev, "Entering AoD mode\n");
648 switch (arizona->type) {
651 jd_active = arizona_is_jack_det_active(arizona);
655 if (arizona->external_dcvdd) {
656 ret = arizona_isolate_dcvdd(arizona);
661 * As this is only called for the internal regulator
662 * (where we know voltage ranges available) it is ok
663 * to request an exact range.
665 ret = regulator_set_voltage(arizona->dcvdd,
668 dev_err(arizona->dev,
669 "Failed to set suspend voltage: %d\n",
676 jd_active = arizona_is_jack_det_active(arizona);
680 if (arizona->external_dcvdd) {
681 ret = arizona_isolate_dcvdd(arizona);
687 ret = regmap_write(arizona->regmap,
688 ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
690 dev_err(arizona->dev,
691 "Failed to clear write sequencer: %d\n",
701 jd_active = arizona_is_jack_det_active(arizona);
705 if (arizona->external_dcvdd) {
706 ret = arizona_isolate_dcvdd(arizona);
713 regcache_cache_only(arizona->regmap, true);
714 regcache_mark_dirty(arizona->regmap);
715 regulator_disable(arizona->dcvdd);
717 /* Allow us to completely power down if no jack detection */
719 dev_dbg(arizona->dev, "Fully powering off\n");
721 arizona->has_fully_powered_off = true;
723 disable_irq_nosync(arizona->irq);
724 arizona_enable_reset(arizona);
725 regulator_bulk_disable(arizona->num_core_supplies,
726 arizona->core_supplies);
733 #ifdef CONFIG_PM_SLEEP
734 static int arizona_suspend(struct device *dev)
736 struct arizona *arizona = dev_get_drvdata(dev);
738 dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
739 disable_irq(arizona->irq);
744 static int arizona_suspend_noirq(struct device *dev)
746 struct arizona *arizona = dev_get_drvdata(dev);
748 dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
749 enable_irq(arizona->irq);
754 static int arizona_resume_noirq(struct device *dev)
756 struct arizona *arizona = dev_get_drvdata(dev);
758 dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
759 disable_irq(arizona->irq);
764 static int arizona_resume(struct device *dev)
766 struct arizona *arizona = dev_get_drvdata(dev);
768 dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
769 enable_irq(arizona->irq);
775 const struct dev_pm_ops arizona_pm_ops = {
776 SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
777 arizona_runtime_resume,
779 SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
780 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
781 arizona_resume_noirq)
783 EXPORT_SYMBOL_GPL(arizona_pm_ops);
786 unsigned long arizona_of_get_type(struct device *dev)
788 const struct of_device_id *id = of_match_device(arizona_of_match, dev);
791 return (unsigned long)id->data;
795 EXPORT_SYMBOL_GPL(arizona_of_get_type);
797 static int arizona_of_get_core_pdata(struct arizona *arizona)
799 struct arizona_pdata *pdata = &arizona->pdata;
800 struct property *prop;
803 u32 pdm_val[ARIZONA_MAX_PDM_SPK];
807 pdata->reset = of_get_named_gpio(arizona->dev->of_node, "wlf,reset", 0);
808 if (pdata->reset == -EPROBE_DEFER) {
810 } else if (pdata->reset < 0) {
811 dev_err(arizona->dev, "Reset GPIO missing/malformed: %d\n",
817 ret = of_property_read_u32_array(arizona->dev->of_node,
819 pdata->gpio_defaults,
820 ARRAY_SIZE(pdata->gpio_defaults));
823 * All values are literal except out of range values
824 * which are chip default, translate into platform
825 * data which uses 0 as chip default and out of range
828 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
829 if (pdata->gpio_defaults[i] > 0xffff)
830 pdata->gpio_defaults[i] = 0;
831 else if (pdata->gpio_defaults[i] == 0)
832 pdata->gpio_defaults[i] = 0x10000;
835 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
839 of_property_for_each_u32(arizona->dev->of_node, "wlf,inmode", prop,
841 if (count == ARRAY_SIZE(pdata->inmode))
844 pdata->inmode[count] = val;
849 of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop,
851 if (count == ARRAY_SIZE(pdata->dmic_ref))
854 pdata->dmic_ref[count] = val;
859 of_property_for_each_u32(arizona->dev->of_node, "wlf,out-mono", prop,
861 if (count == ARRAY_SIZE(pdata->out_mono))
864 pdata->out_mono[count] = !!val;
869 of_property_for_each_u32(arizona->dev->of_node,
870 "wlf,max-channels-clocked",
872 if (count == ARRAY_SIZE(pdata->max_channels_clocked))
875 pdata->max_channels_clocked[count] = val;
879 ret = of_property_read_u32_array(arizona->dev->of_node,
882 ARRAY_SIZE(pdm_val));
885 for (count = 0; count < ARRAY_SIZE(pdata->spk_fmt); ++count)
886 pdata->spk_fmt[count] = pdm_val[count];
888 ret = of_property_read_u32_array(arizona->dev->of_node,
891 ARRAY_SIZE(pdm_val));
894 for (count = 0; count < ARRAY_SIZE(pdata->spk_mute); ++count)
895 pdata->spk_mute[count] = pdm_val[count];
900 const struct of_device_id arizona_of_match[] = {
901 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
902 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
903 { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
904 { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
905 { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
906 { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
907 { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
908 { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
911 EXPORT_SYMBOL_GPL(arizona_of_match);
913 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
919 static const struct mfd_cell early_devs[] = {
920 { .name = "arizona-ldo1" },
923 static const char * const wm5102_supplies[] = {
932 static const struct mfd_cell wm5102_devs[] = {
933 { .name = "arizona-micsupp" },
934 { .name = "arizona-gpio" },
936 .name = "arizona-extcon",
937 .parent_supplies = wm5102_supplies,
938 .num_parent_supplies = 1, /* We only need MICVDD */
940 { .name = "arizona-haptics" },
941 { .name = "arizona-pwm" },
943 .name = "wm5102-codec",
944 .parent_supplies = wm5102_supplies,
945 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
949 static const struct mfd_cell wm5110_devs[] = {
950 { .name = "arizona-micsupp" },
951 { .name = "arizona-gpio" },
953 .name = "arizona-extcon",
954 .parent_supplies = wm5102_supplies,
955 .num_parent_supplies = 1, /* We only need MICVDD */
957 { .name = "arizona-haptics" },
958 { .name = "arizona-pwm" },
960 .name = "wm5110-codec",
961 .parent_supplies = wm5102_supplies,
962 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
966 static const char * const cs47l24_supplies[] = {
972 static const struct mfd_cell cs47l24_devs[] = {
973 { .name = "arizona-gpio" },
974 { .name = "arizona-haptics" },
975 { .name = "arizona-pwm" },
977 .name = "cs47l24-codec",
978 .parent_supplies = cs47l24_supplies,
979 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
983 static const char * const wm8997_supplies[] = {
990 static const struct mfd_cell wm8997_devs[] = {
991 { .name = "arizona-micsupp" },
992 { .name = "arizona-gpio" },
994 .name = "arizona-extcon",
995 .parent_supplies = wm8997_supplies,
996 .num_parent_supplies = 1, /* We only need MICVDD */
998 { .name = "arizona-haptics" },
999 { .name = "arizona-pwm" },
1001 .name = "wm8997-codec",
1002 .parent_supplies = wm8997_supplies,
1003 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
1007 static const struct mfd_cell wm8998_devs[] = {
1008 { .name = "arizona-micsupp" },
1009 { .name = "arizona-gpio" },
1011 .name = "arizona-extcon",
1012 .parent_supplies = wm5102_supplies,
1013 .num_parent_supplies = 1, /* We only need MICVDD */
1015 { .name = "arizona-haptics" },
1016 { .name = "arizona-pwm" },
1018 .name = "wm8998-codec",
1019 .parent_supplies = wm5102_supplies,
1020 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
1024 int arizona_dev_init(struct arizona *arizona)
1026 const char * const mclk_name[] = { "mclk1", "mclk2" };
1027 struct device *dev = arizona->dev;
1028 const char *type_name = NULL;
1029 unsigned int reg, val, mask;
1030 int (*apply_patch)(struct arizona *) = NULL;
1031 const struct mfd_cell *subdevs = NULL;
1032 int n_subdevs = 0, ret, i;
1034 dev_set_drvdata(arizona->dev, arizona);
1035 mutex_init(&arizona->clk_lock);
1037 if (dev_get_platdata(arizona->dev)) {
1038 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
1039 sizeof(arizona->pdata));
1041 ret = arizona_of_get_core_pdata(arizona);
1046 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
1047 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
1048 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
1049 if (IS_ERR(arizona->mclk[i])) {
1050 dev_info(arizona->dev, "Failed to get %s: %ld\n",
1051 mclk_name[i], PTR_ERR(arizona->mclk[i]));
1052 arizona->mclk[i] = NULL;
1056 regcache_cache_only(arizona->regmap, true);
1058 switch (arizona->type) {
1067 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1068 arizona->core_supplies[i].supply
1069 = wm5102_core_supplies[i];
1070 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1073 dev_err(arizona->dev, "Unknown device type %d\n",
1078 /* Mark DCVDD as external, LDO1 driver will clear if internal */
1079 arizona->external_dcvdd = true;
1081 switch (arizona->type) {
1084 break; /* No LDO1 regulator */
1086 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1087 ARRAY_SIZE(early_devs), NULL, 0, NULL);
1089 dev_err(dev, "Failed to add early children: %d\n", ret);
1095 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1096 arizona->core_supplies);
1098 dev_err(dev, "Failed to request core supplies: %d\n",
1104 * Don't use devres here because the only device we have to get
1105 * against is the MFD device and DCVDD will likely be supplied by
1106 * one of its children. Meaning that the regulator will be
1107 * destroyed by the time devres calls regulator put.
1109 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1110 if (IS_ERR(arizona->dcvdd)) {
1111 ret = PTR_ERR(arizona->dcvdd);
1112 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1116 if (arizona->pdata.reset) {
1117 /* Start out with /RESET low to put the chip into reset */
1118 ret = devm_gpio_request_one(arizona->dev, arizona->pdata.reset,
1119 GPIOF_DIR_OUT | GPIOF_INIT_LOW,
1122 dev_err(dev, "Failed to request /RESET: %d\n", ret);
1127 ret = regulator_bulk_enable(arizona->num_core_supplies,
1128 arizona->core_supplies);
1130 dev_err(dev, "Failed to enable core supplies: %d\n",
1135 ret = regulator_enable(arizona->dcvdd);
1137 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1141 arizona_disable_reset(arizona);
1143 regcache_cache_only(arizona->regmap, false);
1145 /* Verify that this is a chip we know about */
1146 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1148 dev_err(dev, "Failed to read ID register: %d\n", ret);
1160 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1165 /* If we have a /RESET GPIO we'll already be reset */
1166 if (!arizona->pdata.reset) {
1167 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1169 dev_err(dev, "Failed to reset device: %d\n", ret);
1173 usleep_range(1000, 5000);
1176 /* Ensure device startup is complete */
1177 switch (arizona->type) {
1179 ret = regmap_read(arizona->regmap,
1180 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1183 "Failed to check write sequencer state: %d\n",
1185 } else if (val & 0x01) {
1186 ret = wm5102_clear_write_sequencer(arizona);
1195 ret = arizona_wait_for_boot(arizona);
1197 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1201 /* Read the device ID information & do device specific stuff */
1202 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1204 dev_err(dev, "Failed to read ID register: %d\n", ret);
1208 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1211 dev_err(dev, "Failed to read revision register: %d\n", ret);
1214 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1218 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1219 type_name = "WM5102";
1220 if (arizona->type != WM5102) {
1221 dev_warn(arizona->dev,
1222 "WM5102 registered as %d\n",
1224 arizona->type = WM5102;
1227 apply_patch = wm5102_patch;
1228 arizona->rev &= 0x7;
1229 subdevs = wm5102_devs;
1230 n_subdevs = ARRAY_SIZE(wm5102_devs);
1234 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1235 switch (arizona->type) {
1237 type_name = "WM5110";
1240 type_name = "WM8280";
1243 type_name = "WM5110";
1244 dev_warn(arizona->dev,
1245 "WM5110 registered as %d\n",
1247 arizona->type = WM5110;
1251 apply_patch = wm5110_patch;
1252 subdevs = wm5110_devs;
1253 n_subdevs = ARRAY_SIZE(wm5110_devs);
1257 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1258 switch (arizona->type) {
1260 type_name = "CS47L24";
1264 type_name = "WM1831";
1268 dev_warn(arizona->dev,
1269 "CS47L24 registered as %d\n",
1271 arizona->type = CS47L24;
1275 apply_patch = cs47l24_patch;
1276 subdevs = cs47l24_devs;
1277 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1281 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1282 type_name = "WM8997";
1283 if (arizona->type != WM8997) {
1284 dev_warn(arizona->dev,
1285 "WM8997 registered as %d\n",
1287 arizona->type = WM8997;
1290 apply_patch = wm8997_patch;
1291 subdevs = wm8997_devs;
1292 n_subdevs = ARRAY_SIZE(wm8997_devs);
1296 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1297 switch (arizona->type) {
1299 type_name = "WM8998";
1303 type_name = "WM1814";
1307 type_name = "WM8998";
1308 dev_warn(arizona->dev,
1309 "WM8998 registered as %d\n",
1311 arizona->type = WM8998;
1314 apply_patch = wm8998_patch;
1315 subdevs = wm8998_devs;
1316 n_subdevs = ARRAY_SIZE(wm8998_devs);
1320 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1326 dev_err(arizona->dev,
1327 "No kernel support for device ID %x\n", reg);
1332 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1335 ret = apply_patch(arizona);
1337 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1342 switch (arizona->type) {
1344 ret = wm5102_apply_hardware_patch(arizona);
1346 dev_err(arizona->dev,
1347 "Failed to apply hardware patch: %d\n",
1354 ret = wm5110_apply_sleep_patch(arizona);
1356 dev_err(arizona->dev,
1357 "Failed to apply sleep patch: %d\n",
1367 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1368 if (!arizona->pdata.gpio_defaults[i])
1371 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1372 arizona->pdata.gpio_defaults[i]);
1376 if (!arizona->pdata.clk32k_src)
1377 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1379 switch (arizona->pdata.clk32k_src) {
1380 case ARIZONA_32KZ_MCLK1:
1381 case ARIZONA_32KZ_MCLK2:
1382 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1383 ARIZONA_CLK_32K_SRC_MASK,
1384 arizona->pdata.clk32k_src - 1);
1385 arizona_clk32k_enable(arizona);
1387 case ARIZONA_32KZ_NONE:
1388 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1389 ARIZONA_CLK_32K_SRC_MASK, 2);
1392 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1393 arizona->pdata.clk32k_src);
1398 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1399 if (!arizona->pdata.micbias[i].mV &&
1400 !arizona->pdata.micbias[i].bypass)
1403 /* Apply default for bypass mode */
1404 if (!arizona->pdata.micbias[i].mV)
1405 arizona->pdata.micbias[i].mV = 2800;
1407 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1409 val <<= ARIZONA_MICB1_LVL_SHIFT;
1411 if (arizona->pdata.micbias[i].ext_cap)
1412 val |= ARIZONA_MICB1_EXT_CAP;
1414 if (arizona->pdata.micbias[i].discharge)
1415 val |= ARIZONA_MICB1_DISCH;
1417 if (arizona->pdata.micbias[i].soft_start)
1418 val |= ARIZONA_MICB1_RATE;
1420 if (arizona->pdata.micbias[i].bypass)
1421 val |= ARIZONA_MICB1_BYPASS;
1423 regmap_update_bits(arizona->regmap,
1424 ARIZONA_MIC_BIAS_CTRL_1 + i,
1425 ARIZONA_MICB1_LVL_MASK |
1426 ARIZONA_MICB1_EXT_CAP |
1427 ARIZONA_MICB1_DISCH |
1428 ARIZONA_MICB1_BYPASS |
1429 ARIZONA_MICB1_RATE, val);
1432 for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
1433 /* Default for both is 0 so noop with defaults */
1434 val = arizona->pdata.dmic_ref[i]
1435 << ARIZONA_IN1_DMIC_SUP_SHIFT;
1436 if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC)
1437 val |= 1 << ARIZONA_IN1_MODE_SHIFT;
1439 switch (arizona->type) {
1442 regmap_update_bits(arizona->regmap,
1443 ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 8),
1444 ARIZONA_IN1L_SRC_SE_MASK,
1445 (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1446 << ARIZONA_IN1L_SRC_SE_SHIFT);
1448 regmap_update_bits(arizona->regmap,
1449 ARIZONA_ADC_DIGITAL_VOLUME_1R + (i * 8),
1450 ARIZONA_IN1R_SRC_SE_MASK,
1451 (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1452 << ARIZONA_IN1R_SRC_SE_SHIFT);
1454 mask = ARIZONA_IN1_DMIC_SUP_MASK |
1455 ARIZONA_IN1_MODE_MASK;
1458 if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1459 val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT;
1461 mask = ARIZONA_IN1_DMIC_SUP_MASK |
1462 ARIZONA_IN1_MODE_MASK |
1463 ARIZONA_IN1_SINGLE_ENDED_MASK;
1467 regmap_update_bits(arizona->regmap,
1468 ARIZONA_IN1L_CONTROL + (i * 8),
1472 for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
1473 /* Default is 0 so noop with defaults */
1474 if (arizona->pdata.out_mono[i])
1475 val = ARIZONA_OUT1_MONO;
1479 regmap_update_bits(arizona->regmap,
1480 ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
1481 ARIZONA_OUT1_MONO, val);
1484 for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
1485 if (arizona->pdata.spk_mute[i])
1486 regmap_update_bits(arizona->regmap,
1487 ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
1488 ARIZONA_SPK1_MUTE_ENDIAN_MASK |
1489 ARIZONA_SPK1_MUTE_SEQ1_MASK,
1490 arizona->pdata.spk_mute[i]);
1492 if (arizona->pdata.spk_fmt[i])
1493 regmap_update_bits(arizona->regmap,
1494 ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
1495 ARIZONA_SPK1_FMT_MASK,
1496 arizona->pdata.spk_fmt[i]);
1499 pm_runtime_set_active(arizona->dev);
1500 pm_runtime_enable(arizona->dev);
1502 /* Set up for interrupts */
1503 ret = arizona_irq_init(arizona);
1507 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1508 pm_runtime_use_autosuspend(arizona->dev);
1510 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1511 arizona_clkgen_err, arizona);
1512 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1513 arizona_overclocked, arizona);
1514 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1515 arizona_underclocked, arizona);
1517 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1518 subdevs, n_subdevs, NULL, 0, NULL);
1521 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1528 arizona_irq_exit(arizona);
1530 pm_runtime_disable(arizona->dev);
1532 switch (arizona->pdata.clk32k_src) {
1533 case ARIZONA_32KZ_MCLK1:
1534 case ARIZONA_32KZ_MCLK2:
1535 arizona_clk32k_disable(arizona);
1541 arizona_enable_reset(arizona);
1542 regulator_disable(arizona->dcvdd);
1544 regulator_bulk_disable(arizona->num_core_supplies,
1545 arizona->core_supplies);
1547 regulator_put(arizona->dcvdd);
1549 mfd_remove_devices(dev);
1552 EXPORT_SYMBOL_GPL(arizona_dev_init);
1554 int arizona_dev_exit(struct arizona *arizona)
1556 disable_irq(arizona->irq);
1557 pm_runtime_disable(arizona->dev);
1559 regulator_disable(arizona->dcvdd);
1560 regulator_put(arizona->dcvdd);
1562 switch (arizona->pdata.clk32k_src) {
1563 case ARIZONA_32KZ_MCLK1:
1564 case ARIZONA_32KZ_MCLK2:
1565 arizona_clk32k_disable(arizona);
1571 mfd_remove_devices(arizona->dev);
1572 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1573 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1574 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1575 arizona_irq_exit(arizona);
1576 arizona_enable_reset(arizona);
1578 regulator_bulk_disable(arizona->num_core_supplies,
1579 arizona->core_supplies);
1582 EXPORT_SYMBOL_GPL(arizona_dev_exit);