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/consumer.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/pm_runtime.h>
23 #include <linux/regmap.h>
24 #include <linux/regulator/consumer.h>
25 #include <linux/regulator/machine.h>
26 #include <linux/slab.h>
27 #include <linux/ktime.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 inline bool arizona_poll_reg_delay(ktime_t timeout)
242 if (ktime_compare(ktime_get(), timeout) > 0)
245 usleep_range(ARIZONA_REG_POLL_DELAY_US / 2, ARIZONA_REG_POLL_DELAY_US);
250 static int arizona_poll_reg(struct arizona *arizona,
251 int timeout_ms, unsigned int reg,
252 unsigned int mask, unsigned int target)
254 ktime_t timeout = ktime_add_us(ktime_get(), timeout_ms * USEC_PER_MSEC);
255 unsigned int val = 0;
259 ret = regmap_read(arizona->regmap, reg, &val);
261 if ((val & mask) == target)
263 } while (arizona_poll_reg_delay(timeout));
266 dev_err(arizona->dev, "Failed polling reg 0x%x: %d\n",
271 dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n", reg, val);
275 static int arizona_wait_for_boot(struct arizona *arizona)
280 * We can't use an interrupt as we need to runtime resume to do so,
281 * we won't race with the interrupt handler as it'll be blocked on
284 ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
285 ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
288 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
289 ARIZONA_BOOT_DONE_STS);
291 pm_runtime_mark_last_busy(arizona->dev);
296 static inline void arizona_enable_reset(struct arizona *arizona)
298 if (arizona->pdata.reset)
299 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 0);
302 static void arizona_disable_reset(struct arizona *arizona)
304 if (arizona->pdata.reset) {
305 switch (arizona->type) {
308 /* Meet requirements for minimum reset duration */
309 usleep_range(5000, 10000);
315 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 1);
316 usleep_range(1000, 5000);
320 struct arizona_sysclk_state {
325 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
326 struct arizona_sysclk_state *state)
330 /* Cache existing FLL and SYSCLK settings */
331 ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
333 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
337 ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
340 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
345 /* Start up SYSCLK using the FLL in free running mode */
346 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
347 ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
349 dev_err(arizona->dev,
350 "Failed to start FLL in freerunning mode: %d\n",
354 ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
355 ARIZONA_FLL1_CLOCK_OK_STS,
356 ARIZONA_FLL1_CLOCK_OK_STS);
360 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
362 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
369 err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
371 dev_err(arizona->dev,
372 "Failed to re-apply old FLL settings: %d\n", err);
377 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
378 struct arizona_sysclk_state *state)
382 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
385 dev_err(arizona->dev,
386 "Failed to re-apply old SYSCLK settings: %d\n", ret);
390 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
392 dev_err(arizona->dev,
393 "Failed to re-apply old FLL settings: %d\n", ret);
400 static int wm5102_apply_hardware_patch(struct arizona *arizona)
402 struct arizona_sysclk_state state;
405 ret = arizona_enable_freerun_sysclk(arizona, &state);
409 /* Start the write sequencer and wait for it to finish */
410 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
411 ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
413 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
418 ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
419 ARIZONA_WSEQ_BUSY, 0);
421 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
425 err = arizona_disable_freerun_sysclk(arizona, &state);
431 * Register patch to some of the CODECs internal write sequences
432 * to ensure a clean exit from the low power sleep state.
434 static const struct reg_sequence wm5110_sleep_patch[] = {
441 static int wm5110_apply_sleep_patch(struct arizona *arizona)
443 struct arizona_sysclk_state state;
446 ret = arizona_enable_freerun_sysclk(arizona, &state);
450 ret = regmap_multi_reg_write_bypassed(arizona->regmap,
452 ARRAY_SIZE(wm5110_sleep_patch));
454 err = arizona_disable_freerun_sysclk(arizona, &state);
459 static int wm5102_clear_write_sequencer(struct arizona *arizona)
463 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
466 dev_err(arizona->dev,
467 "Failed to clear write sequencer state: %d\n", ret);
471 arizona_enable_reset(arizona);
472 regulator_disable(arizona->dcvdd);
476 ret = regulator_enable(arizona->dcvdd);
478 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
481 arizona_disable_reset(arizona);
487 static int arizona_isolate_dcvdd(struct arizona *arizona)
491 ret = regmap_update_bits(arizona->regmap,
492 ARIZONA_ISOLATION_CONTROL,
493 ARIZONA_ISOLATE_DCVDD1,
494 ARIZONA_ISOLATE_DCVDD1);
496 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
501 static int arizona_connect_dcvdd(struct arizona *arizona)
505 ret = regmap_update_bits(arizona->regmap,
506 ARIZONA_ISOLATION_CONTROL,
507 ARIZONA_ISOLATE_DCVDD1, 0);
509 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
514 static int arizona_is_jack_det_active(struct arizona *arizona)
519 ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
521 dev_err(arizona->dev,
522 "Failed to check jack det status: %d\n", ret);
524 } else if (val & ARIZONA_JD1_ENA) {
531 static int arizona_runtime_resume(struct device *dev)
533 struct arizona *arizona = dev_get_drvdata(dev);
536 dev_dbg(arizona->dev, "Leaving AoD mode\n");
538 if (arizona->has_fully_powered_off) {
539 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
541 ret = regulator_bulk_enable(arizona->num_core_supplies,
542 arizona->core_supplies);
544 dev_err(dev, "Failed to enable core supplies: %d\n",
550 ret = regulator_enable(arizona->dcvdd);
552 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
553 if (arizona->has_fully_powered_off)
554 regulator_bulk_disable(arizona->num_core_supplies,
555 arizona->core_supplies);
559 if (arizona->has_fully_powered_off) {
560 arizona_disable_reset(arizona);
561 enable_irq(arizona->irq);
562 arizona->has_fully_powered_off = false;
565 regcache_cache_only(arizona->regmap, false);
567 switch (arizona->type) {
569 if (arizona->external_dcvdd) {
570 ret = arizona_connect_dcvdd(arizona);
575 ret = wm5102_patch(arizona);
577 dev_err(arizona->dev, "Failed to apply patch: %d\n",
582 ret = wm5102_apply_hardware_patch(arizona);
584 dev_err(arizona->dev,
585 "Failed to apply hardware patch: %d\n",
592 ret = arizona_wait_for_boot(arizona);
596 if (arizona->external_dcvdd) {
597 ret = arizona_connect_dcvdd(arizona);
602 * As this is only called for the internal regulator
603 * (where we know voltage ranges available) it is ok
604 * to request an exact range.
606 ret = regulator_set_voltage(arizona->dcvdd,
609 dev_err(arizona->dev,
610 "Failed to set resume voltage: %d\n",
616 ret = wm5110_apply_sleep_patch(arizona);
618 dev_err(arizona->dev,
619 "Failed to re-apply sleep patch: %d\n",
626 ret = arizona_wait_for_boot(arizona);
631 ret = arizona_wait_for_boot(arizona);
635 if (arizona->external_dcvdd) {
636 ret = arizona_connect_dcvdd(arizona);
643 ret = regcache_sync(arizona->regmap);
645 dev_err(arizona->dev, "Failed to restore register cache\n");
652 regcache_cache_only(arizona->regmap, true);
653 regulator_disable(arizona->dcvdd);
657 static int arizona_runtime_suspend(struct device *dev)
659 struct arizona *arizona = dev_get_drvdata(dev);
663 dev_dbg(arizona->dev, "Entering AoD mode\n");
665 switch (arizona->type) {
668 jd_active = arizona_is_jack_det_active(arizona);
672 if (arizona->external_dcvdd) {
673 ret = arizona_isolate_dcvdd(arizona);
678 * As this is only called for the internal regulator
679 * (where we know voltage ranges available) it is ok
680 * to request an exact range.
682 ret = regulator_set_voltage(arizona->dcvdd,
685 dev_err(arizona->dev,
686 "Failed to set suspend voltage: %d\n",
693 jd_active = arizona_is_jack_det_active(arizona);
697 if (arizona->external_dcvdd) {
698 ret = arizona_isolate_dcvdd(arizona);
704 ret = regmap_write(arizona->regmap,
705 ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
707 dev_err(arizona->dev,
708 "Failed to clear write sequencer: %d\n",
718 jd_active = arizona_is_jack_det_active(arizona);
722 if (arizona->external_dcvdd) {
723 ret = arizona_isolate_dcvdd(arizona);
730 regcache_cache_only(arizona->regmap, true);
731 regcache_mark_dirty(arizona->regmap);
732 regulator_disable(arizona->dcvdd);
734 /* Allow us to completely power down if no jack detection */
736 dev_dbg(arizona->dev, "Fully powering off\n");
738 arizona->has_fully_powered_off = true;
740 disable_irq_nosync(arizona->irq);
741 arizona_enable_reset(arizona);
742 regulator_bulk_disable(arizona->num_core_supplies,
743 arizona->core_supplies);
750 #ifdef CONFIG_PM_SLEEP
751 static int arizona_suspend(struct device *dev)
753 struct arizona *arizona = dev_get_drvdata(dev);
755 dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
756 disable_irq(arizona->irq);
761 static int arizona_suspend_noirq(struct device *dev)
763 struct arizona *arizona = dev_get_drvdata(dev);
765 dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
766 enable_irq(arizona->irq);
771 static int arizona_resume_noirq(struct device *dev)
773 struct arizona *arizona = dev_get_drvdata(dev);
775 dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
776 disable_irq(arizona->irq);
781 static int arizona_resume(struct device *dev)
783 struct arizona *arizona = dev_get_drvdata(dev);
785 dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
786 enable_irq(arizona->irq);
792 const struct dev_pm_ops arizona_pm_ops = {
793 SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
794 arizona_runtime_resume,
796 SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
797 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
798 arizona_resume_noirq)
800 EXPORT_SYMBOL_GPL(arizona_pm_ops);
803 unsigned long arizona_of_get_type(struct device *dev)
805 const struct of_device_id *id = of_match_device(arizona_of_match, dev);
808 return (unsigned long)id->data;
812 EXPORT_SYMBOL_GPL(arizona_of_get_type);
814 static int arizona_of_get_core_pdata(struct arizona *arizona)
816 struct arizona_pdata *pdata = &arizona->pdata;
819 /* Handle old non-standard DT binding */
820 pdata->reset = devm_gpiod_get_from_of_node(arizona->dev,
821 arizona->dev->of_node,
825 if (IS_ERR(pdata->reset)) {
826 ret = PTR_ERR(pdata->reset);
829 * Reset missing will be caught when other binding is read
830 * but all other errors imply this binding is in use but has
831 * encountered a problem so should be handled.
833 if (ret == -EPROBE_DEFER)
835 else if (ret != -ENOENT && ret != -ENOSYS)
836 dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
842 ret = of_property_read_u32_array(arizona->dev->of_node,
844 pdata->gpio_defaults,
845 ARRAY_SIZE(pdata->gpio_defaults));
848 * All values are literal except out of range values
849 * which are chip default, translate into platform
850 * data which uses 0 as chip default and out of range
853 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
854 if (pdata->gpio_defaults[i] > 0xffff)
855 pdata->gpio_defaults[i] = 0;
856 else if (pdata->gpio_defaults[i] == 0)
857 pdata->gpio_defaults[i] = 0x10000;
860 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
867 const struct of_device_id arizona_of_match[] = {
868 { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
869 { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
870 { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
871 { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
872 { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
873 { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
874 { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
875 { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
878 EXPORT_SYMBOL_GPL(arizona_of_match);
880 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
886 static const struct mfd_cell early_devs[] = {
887 { .name = "arizona-ldo1" },
890 static const char * const wm5102_supplies[] = {
899 static const struct mfd_cell wm5102_devs[] = {
900 { .name = "arizona-micsupp" },
901 { .name = "arizona-gpio" },
903 .name = "arizona-extcon",
904 .parent_supplies = wm5102_supplies,
905 .num_parent_supplies = 1, /* We only need MICVDD */
907 { .name = "arizona-haptics" },
908 { .name = "arizona-pwm" },
910 .name = "wm5102-codec",
911 .parent_supplies = wm5102_supplies,
912 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
916 static const struct mfd_cell wm5110_devs[] = {
917 { .name = "arizona-micsupp" },
918 { .name = "arizona-gpio" },
920 .name = "arizona-extcon",
921 .parent_supplies = wm5102_supplies,
922 .num_parent_supplies = 1, /* We only need MICVDD */
924 { .name = "arizona-haptics" },
925 { .name = "arizona-pwm" },
927 .name = "wm5110-codec",
928 .parent_supplies = wm5102_supplies,
929 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
933 static const char * const cs47l24_supplies[] = {
939 static const struct mfd_cell cs47l24_devs[] = {
940 { .name = "arizona-gpio" },
941 { .name = "arizona-haptics" },
942 { .name = "arizona-pwm" },
944 .name = "cs47l24-codec",
945 .parent_supplies = cs47l24_supplies,
946 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
950 static const char * const wm8997_supplies[] = {
957 static const struct mfd_cell wm8997_devs[] = {
958 { .name = "arizona-micsupp" },
959 { .name = "arizona-gpio" },
961 .name = "arizona-extcon",
962 .parent_supplies = wm8997_supplies,
963 .num_parent_supplies = 1, /* We only need MICVDD */
965 { .name = "arizona-haptics" },
966 { .name = "arizona-pwm" },
968 .name = "wm8997-codec",
969 .parent_supplies = wm8997_supplies,
970 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
974 static const struct mfd_cell wm8998_devs[] = {
975 { .name = "arizona-micsupp" },
976 { .name = "arizona-gpio" },
978 .name = "arizona-extcon",
979 .parent_supplies = wm5102_supplies,
980 .num_parent_supplies = 1, /* We only need MICVDD */
982 { .name = "arizona-haptics" },
983 { .name = "arizona-pwm" },
985 .name = "wm8998-codec",
986 .parent_supplies = wm5102_supplies,
987 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
991 int arizona_dev_init(struct arizona *arizona)
993 const char * const mclk_name[] = { "mclk1", "mclk2" };
994 struct device *dev = arizona->dev;
995 const char *type_name = NULL;
996 unsigned int reg, val;
997 int (*apply_patch)(struct arizona *) = NULL;
998 const struct mfd_cell *subdevs = NULL;
999 int n_subdevs = 0, ret, i;
1001 dev_set_drvdata(arizona->dev, arizona);
1002 mutex_init(&arizona->clk_lock);
1004 if (dev_get_platdata(arizona->dev)) {
1005 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
1006 sizeof(arizona->pdata));
1008 ret = arizona_of_get_core_pdata(arizona);
1013 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
1014 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
1015 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
1016 if (IS_ERR(arizona->mclk[i])) {
1017 dev_info(arizona->dev, "Failed to get %s: %ld\n",
1018 mclk_name[i], PTR_ERR(arizona->mclk[i]));
1019 arizona->mclk[i] = NULL;
1023 regcache_cache_only(arizona->regmap, true);
1025 switch (arizona->type) {
1034 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1035 arizona->core_supplies[i].supply
1036 = wm5102_core_supplies[i];
1037 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1040 dev_err(arizona->dev, "Unknown device type %d\n",
1045 /* Mark DCVDD as external, LDO1 driver will clear if internal */
1046 arizona->external_dcvdd = true;
1048 switch (arizona->type) {
1051 break; /* No LDO1 regulator */
1053 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1054 ARRAY_SIZE(early_devs), NULL, 0, NULL);
1056 dev_err(dev, "Failed to add early children: %d\n", ret);
1062 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1063 arizona->core_supplies);
1065 dev_err(dev, "Failed to request core supplies: %d\n",
1071 * Don't use devres here because the only device we have to get
1072 * against is the MFD device and DCVDD will likely be supplied by
1073 * one of its children. Meaning that the regulator will be
1074 * destroyed by the time devres calls regulator put.
1076 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1077 if (IS_ERR(arizona->dcvdd)) {
1078 ret = PTR_ERR(arizona->dcvdd);
1079 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1083 if (!arizona->pdata.reset) {
1084 /* Start out with /RESET low to put the chip into reset */
1085 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1087 if (IS_ERR(arizona->pdata.reset)) {
1088 ret = PTR_ERR(arizona->pdata.reset);
1089 if (ret == -EPROBE_DEFER)
1092 dev_err(arizona->dev,
1093 "Reset GPIO missing/malformed: %d\n", ret);
1095 arizona->pdata.reset = NULL;
1099 ret = regulator_bulk_enable(arizona->num_core_supplies,
1100 arizona->core_supplies);
1102 dev_err(dev, "Failed to enable core supplies: %d\n",
1107 ret = regulator_enable(arizona->dcvdd);
1109 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1113 arizona_disable_reset(arizona);
1115 regcache_cache_only(arizona->regmap, false);
1117 /* Verify that this is a chip we know about */
1118 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1120 dev_err(dev, "Failed to read ID register: %d\n", ret);
1132 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1137 /* If we have a /RESET GPIO we'll already be reset */
1138 if (!arizona->pdata.reset) {
1139 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1141 dev_err(dev, "Failed to reset device: %d\n", ret);
1145 usleep_range(1000, 5000);
1148 /* Ensure device startup is complete */
1149 switch (arizona->type) {
1151 ret = regmap_read(arizona->regmap,
1152 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1155 "Failed to check write sequencer state: %d\n",
1157 } else if (val & 0x01) {
1158 ret = wm5102_clear_write_sequencer(arizona);
1167 ret = arizona_wait_for_boot(arizona);
1169 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1173 /* Read the device ID information & do device specific stuff */
1174 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1176 dev_err(dev, "Failed to read ID register: %d\n", ret);
1180 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1183 dev_err(dev, "Failed to read revision register: %d\n", ret);
1186 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1190 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1191 type_name = "WM5102";
1192 if (arizona->type != WM5102) {
1193 dev_warn(arizona->dev,
1194 "WM5102 registered as %d\n",
1196 arizona->type = WM5102;
1199 apply_patch = wm5102_patch;
1200 arizona->rev &= 0x7;
1201 subdevs = wm5102_devs;
1202 n_subdevs = ARRAY_SIZE(wm5102_devs);
1206 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1207 switch (arizona->type) {
1209 type_name = "WM5110";
1212 type_name = "WM8280";
1215 type_name = "WM5110";
1216 dev_warn(arizona->dev,
1217 "WM5110 registered as %d\n",
1219 arizona->type = WM5110;
1223 apply_patch = wm5110_patch;
1224 subdevs = wm5110_devs;
1225 n_subdevs = ARRAY_SIZE(wm5110_devs);
1229 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1230 switch (arizona->type) {
1232 type_name = "CS47L24";
1236 type_name = "WM1831";
1240 dev_warn(arizona->dev,
1241 "CS47L24 registered as %d\n",
1243 arizona->type = CS47L24;
1247 apply_patch = cs47l24_patch;
1248 subdevs = cs47l24_devs;
1249 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1253 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1254 type_name = "WM8997";
1255 if (arizona->type != WM8997) {
1256 dev_warn(arizona->dev,
1257 "WM8997 registered as %d\n",
1259 arizona->type = WM8997;
1262 apply_patch = wm8997_patch;
1263 subdevs = wm8997_devs;
1264 n_subdevs = ARRAY_SIZE(wm8997_devs);
1268 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1269 switch (arizona->type) {
1271 type_name = "WM8998";
1275 type_name = "WM1814";
1279 type_name = "WM8998";
1280 dev_warn(arizona->dev,
1281 "WM8998 registered as %d\n",
1283 arizona->type = WM8998;
1286 apply_patch = wm8998_patch;
1287 subdevs = wm8998_devs;
1288 n_subdevs = ARRAY_SIZE(wm8998_devs);
1292 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1298 dev_err(arizona->dev,
1299 "No kernel support for device ID %x\n", reg);
1304 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1307 ret = apply_patch(arizona);
1309 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1314 switch (arizona->type) {
1316 ret = wm5102_apply_hardware_patch(arizona);
1318 dev_err(arizona->dev,
1319 "Failed to apply hardware patch: %d\n",
1326 ret = wm5110_apply_sleep_patch(arizona);
1328 dev_err(arizona->dev,
1329 "Failed to apply sleep patch: %d\n",
1339 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1340 if (!arizona->pdata.gpio_defaults[i])
1343 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1344 arizona->pdata.gpio_defaults[i]);
1348 if (!arizona->pdata.clk32k_src)
1349 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1351 switch (arizona->pdata.clk32k_src) {
1352 case ARIZONA_32KZ_MCLK1:
1353 case ARIZONA_32KZ_MCLK2:
1354 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1355 ARIZONA_CLK_32K_SRC_MASK,
1356 arizona->pdata.clk32k_src - 1);
1357 arizona_clk32k_enable(arizona);
1359 case ARIZONA_32KZ_NONE:
1360 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1361 ARIZONA_CLK_32K_SRC_MASK, 2);
1364 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1365 arizona->pdata.clk32k_src);
1370 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1371 if (!arizona->pdata.micbias[i].mV &&
1372 !arizona->pdata.micbias[i].bypass)
1375 /* Apply default for bypass mode */
1376 if (!arizona->pdata.micbias[i].mV)
1377 arizona->pdata.micbias[i].mV = 2800;
1379 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1381 val <<= ARIZONA_MICB1_LVL_SHIFT;
1383 if (arizona->pdata.micbias[i].ext_cap)
1384 val |= ARIZONA_MICB1_EXT_CAP;
1386 if (arizona->pdata.micbias[i].discharge)
1387 val |= ARIZONA_MICB1_DISCH;
1389 if (arizona->pdata.micbias[i].soft_start)
1390 val |= ARIZONA_MICB1_RATE;
1392 if (arizona->pdata.micbias[i].bypass)
1393 val |= ARIZONA_MICB1_BYPASS;
1395 regmap_update_bits(arizona->regmap,
1396 ARIZONA_MIC_BIAS_CTRL_1 + i,
1397 ARIZONA_MICB1_LVL_MASK |
1398 ARIZONA_MICB1_EXT_CAP |
1399 ARIZONA_MICB1_DISCH |
1400 ARIZONA_MICB1_BYPASS |
1401 ARIZONA_MICB1_RATE, val);
1404 pm_runtime_set_active(arizona->dev);
1405 pm_runtime_enable(arizona->dev);
1407 /* Set up for interrupts */
1408 ret = arizona_irq_init(arizona);
1412 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1413 pm_runtime_use_autosuspend(arizona->dev);
1415 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1416 arizona_clkgen_err, arizona);
1417 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1418 arizona_overclocked, arizona);
1419 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1420 arizona_underclocked, arizona);
1422 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1423 subdevs, n_subdevs, NULL, 0, NULL);
1426 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1433 arizona_irq_exit(arizona);
1435 pm_runtime_disable(arizona->dev);
1437 switch (arizona->pdata.clk32k_src) {
1438 case ARIZONA_32KZ_MCLK1:
1439 case ARIZONA_32KZ_MCLK2:
1440 arizona_clk32k_disable(arizona);
1446 arizona_enable_reset(arizona);
1447 regulator_disable(arizona->dcvdd);
1449 regulator_bulk_disable(arizona->num_core_supplies,
1450 arizona->core_supplies);
1452 regulator_put(arizona->dcvdd);
1454 mfd_remove_devices(dev);
1457 EXPORT_SYMBOL_GPL(arizona_dev_init);
1459 int arizona_dev_exit(struct arizona *arizona)
1461 disable_irq(arizona->irq);
1462 pm_runtime_disable(arizona->dev);
1464 regulator_disable(arizona->dcvdd);
1465 regulator_put(arizona->dcvdd);
1467 switch (arizona->pdata.clk32k_src) {
1468 case ARIZONA_32KZ_MCLK1:
1469 case ARIZONA_32KZ_MCLK2:
1470 arizona_clk32k_disable(arizona);
1476 mfd_remove_devices(arizona->dev);
1477 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1478 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1479 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1480 arizona_irq_exit(arizona);
1481 arizona_enable_reset(arizona);
1483 regulator_bulk_disable(arizona->num_core_supplies,
1484 arizona->core_supplies);
1487 EXPORT_SYMBOL_GPL(arizona_dev_exit);