1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright 2012 Wolfson Microelectronics plc
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
10 #include <linux/clk.h>
11 #include <linux/delay.h>
12 #include <linux/err.h>
13 #include <linux/gpio/consumer.h>
14 #include <linux/interrupt.h>
15 #include <linux/mfd/core.h>
16 #include <linux/module.h>
18 #include <linux/pm_runtime.h>
19 #include <linux/regmap.h>
20 #include <linux/regulator/consumer.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/slab.h>
23 #include <linux/ktime.h>
24 #include <linux/platform_device.h>
26 #include <linux/mfd/arizona/core.h>
27 #include <linux/mfd/arizona/registers.h>
31 static const char * const wm5102_core_supplies[] = {
36 int arizona_clk32k_enable(struct arizona *arizona)
40 mutex_lock(&arizona->clk_lock);
42 arizona->clk32k_ref++;
44 if (arizona->clk32k_ref == 1) {
45 switch (arizona->pdata.clk32k_src) {
46 case ARIZONA_32KZ_MCLK1:
47 ret = pm_runtime_resume_and_get(arizona->dev);
50 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
52 pm_runtime_put_sync(arizona->dev);
56 case ARIZONA_32KZ_MCLK2:
57 ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]);
63 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
70 arizona->clk32k_ref--;
72 mutex_unlock(&arizona->clk_lock);
76 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
78 int arizona_clk32k_disable(struct arizona *arizona)
80 mutex_lock(&arizona->clk_lock);
82 WARN_ON(arizona->clk32k_ref <= 0);
84 arizona->clk32k_ref--;
86 if (arizona->clk32k_ref == 0) {
87 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
88 ARIZONA_CLK_32K_ENA, 0);
90 switch (arizona->pdata.clk32k_src) {
91 case ARIZONA_32KZ_MCLK1:
92 pm_runtime_put_sync(arizona->dev);
93 clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]);
95 case ARIZONA_32KZ_MCLK2:
96 clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]);
101 mutex_unlock(&arizona->clk_lock);
105 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
107 static irqreturn_t arizona_clkgen_err(int irq, void *data)
109 struct arizona *arizona = data;
111 dev_err(arizona->dev, "CLKGEN error\n");
116 static irqreturn_t arizona_underclocked(int irq, void *data)
118 struct arizona *arizona = data;
122 ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
125 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
130 if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
131 dev_err(arizona->dev, "AIF3 underclocked\n");
132 if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
133 dev_err(arizona->dev, "AIF2 underclocked\n");
134 if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
135 dev_err(arizona->dev, "AIF1 underclocked\n");
136 if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
137 dev_err(arizona->dev, "ISRC3 underclocked\n");
138 if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
139 dev_err(arizona->dev, "ISRC2 underclocked\n");
140 if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
141 dev_err(arizona->dev, "ISRC1 underclocked\n");
142 if (val & ARIZONA_FX_UNDERCLOCKED_STS)
143 dev_err(arizona->dev, "FX underclocked\n");
144 if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
145 dev_err(arizona->dev, "ASRC underclocked\n");
146 if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
147 dev_err(arizona->dev, "DAC underclocked\n");
148 if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
149 dev_err(arizona->dev, "ADC underclocked\n");
150 if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
151 dev_err(arizona->dev, "Mixer dropped sample\n");
156 static irqreturn_t arizona_overclocked(int irq, void *data)
158 struct arizona *arizona = data;
162 ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
165 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
170 switch (arizona->type) {
173 /* Some bits are shifted on WM8998,
174 * rearrange to match the standard bit layout
176 val[0] = ((val[0] & 0x60e0) >> 1) |
177 ((val[0] & 0x1e00) >> 2) |
184 if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
185 dev_err(arizona->dev, "PWM overclocked\n");
186 if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
187 dev_err(arizona->dev, "FX core overclocked\n");
188 if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
189 dev_err(arizona->dev, "DAC SYS overclocked\n");
190 if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
191 dev_err(arizona->dev, "DAC WARP overclocked\n");
192 if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
193 dev_err(arizona->dev, "ADC overclocked\n");
194 if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
195 dev_err(arizona->dev, "Mixer overclocked\n");
196 if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
197 dev_err(arizona->dev, "AIF3 overclocked\n");
198 if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
199 dev_err(arizona->dev, "AIF2 overclocked\n");
200 if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
201 dev_err(arizona->dev, "AIF1 overclocked\n");
202 if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
203 dev_err(arizona->dev, "Pad control overclocked\n");
205 if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
206 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
207 if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
208 dev_err(arizona->dev, "Slimbus async overclocked\n");
209 if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
210 dev_err(arizona->dev, "Slimbus sync overclocked\n");
211 if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
212 dev_err(arizona->dev, "ASRC async system overclocked\n");
213 if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
214 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
215 if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
216 dev_err(arizona->dev, "ASRC sync system overclocked\n");
217 if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
218 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
219 if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
220 dev_err(arizona->dev, "DSP1 overclocked\n");
221 if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
222 dev_err(arizona->dev, "ISRC3 overclocked\n");
223 if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
224 dev_err(arizona->dev, "ISRC2 overclocked\n");
225 if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
226 dev_err(arizona->dev, "ISRC1 overclocked\n");
228 if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
229 dev_err(arizona->dev, "SPDIF overclocked\n");
234 #define ARIZONA_REG_POLL_DELAY_US 7500
236 static inline bool arizona_poll_reg_delay(ktime_t timeout)
238 if (ktime_compare(ktime_get(), timeout) > 0)
241 usleep_range(ARIZONA_REG_POLL_DELAY_US / 2, ARIZONA_REG_POLL_DELAY_US);
246 static int arizona_poll_reg(struct arizona *arizona,
247 int timeout_ms, unsigned int reg,
248 unsigned int mask, unsigned int target)
250 ktime_t timeout = ktime_add_us(ktime_get(), timeout_ms * USEC_PER_MSEC);
251 unsigned int val = 0;
255 ret = regmap_read(arizona->regmap, reg, &val);
257 if ((val & mask) == target)
259 } while (arizona_poll_reg_delay(timeout));
262 dev_err(arizona->dev, "Failed polling reg 0x%x: %d\n",
267 dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n", reg, val);
271 static int arizona_wait_for_boot(struct arizona *arizona)
276 * We can't use an interrupt as we need to runtime resume to do so,
277 * we won't race with the interrupt handler as it'll be blocked on
280 ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
281 ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
284 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
285 ARIZONA_BOOT_DONE_STS);
287 pm_runtime_mark_last_busy(arizona->dev);
292 static inline void arizona_enable_reset(struct arizona *arizona)
294 if (arizona->pdata.reset)
295 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 0);
298 static void arizona_disable_reset(struct arizona *arizona)
300 if (arizona->pdata.reset) {
301 switch (arizona->type) {
304 /* Meet requirements for minimum reset duration */
305 usleep_range(5000, 10000);
311 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 1);
312 usleep_range(1000, 5000);
316 struct arizona_sysclk_state {
321 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
322 struct arizona_sysclk_state *state)
326 /* Cache existing FLL and SYSCLK settings */
327 ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
329 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
333 ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
336 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
341 /* Start up SYSCLK using the FLL in free running mode */
342 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
343 ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
345 dev_err(arizona->dev,
346 "Failed to start FLL in freerunning mode: %d\n",
350 ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
351 ARIZONA_FLL1_CLOCK_OK_STS,
352 ARIZONA_FLL1_CLOCK_OK_STS);
356 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
358 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
365 err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
367 dev_err(arizona->dev,
368 "Failed to re-apply old FLL settings: %d\n", err);
373 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
374 struct arizona_sysclk_state *state)
378 ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
381 dev_err(arizona->dev,
382 "Failed to re-apply old SYSCLK settings: %d\n", ret);
386 ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
388 dev_err(arizona->dev,
389 "Failed to re-apply old FLL settings: %d\n", ret);
396 static int wm5102_apply_hardware_patch(struct arizona *arizona)
398 struct arizona_sysclk_state state;
401 ret = arizona_enable_freerun_sysclk(arizona, &state);
405 /* Start the write sequencer and wait for it to finish */
406 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
407 ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
409 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
414 ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
415 ARIZONA_WSEQ_BUSY, 0);
417 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
421 err = arizona_disable_freerun_sysclk(arizona, &state);
427 * Register patch to some of the CODECs internal write sequences
428 * to ensure a clean exit from the low power sleep state.
430 static const struct reg_sequence wm5110_sleep_patch[] = {
437 static int wm5110_apply_sleep_patch(struct arizona *arizona)
439 struct arizona_sysclk_state state;
442 ret = arizona_enable_freerun_sysclk(arizona, &state);
446 ret = regmap_multi_reg_write_bypassed(arizona->regmap,
448 ARRAY_SIZE(wm5110_sleep_patch));
450 err = arizona_disable_freerun_sysclk(arizona, &state);
455 static int wm5102_clear_write_sequencer(struct arizona *arizona)
459 ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
462 dev_err(arizona->dev,
463 "Failed to clear write sequencer state: %d\n", ret);
467 arizona_enable_reset(arizona);
468 regulator_disable(arizona->dcvdd);
472 ret = regulator_enable(arizona->dcvdd);
474 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
477 arizona_disable_reset(arizona);
482 static int arizona_isolate_dcvdd(struct arizona *arizona)
486 ret = regmap_update_bits(arizona->regmap,
487 ARIZONA_ISOLATION_CONTROL,
488 ARIZONA_ISOLATE_DCVDD1,
489 ARIZONA_ISOLATE_DCVDD1);
491 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
496 static int arizona_connect_dcvdd(struct arizona *arizona)
500 ret = regmap_update_bits(arizona->regmap,
501 ARIZONA_ISOLATION_CONTROL,
502 ARIZONA_ISOLATE_DCVDD1, 0);
504 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
509 static int arizona_is_jack_det_active(struct arizona *arizona)
514 ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
516 dev_err(arizona->dev,
517 "Failed to check jack det status: %d\n", ret);
519 } else if (val & ARIZONA_JD1_ENA) {
526 static int arizona_runtime_resume(struct device *dev)
528 struct arizona *arizona = dev_get_drvdata(dev);
531 dev_dbg(arizona->dev, "Leaving AoD mode\n");
533 if (arizona->has_fully_powered_off) {
534 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
536 ret = regulator_bulk_enable(arizona->num_core_supplies,
537 arizona->core_supplies);
539 dev_err(dev, "Failed to enable core supplies: %d\n",
545 ret = regulator_enable(arizona->dcvdd);
547 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
548 if (arizona->has_fully_powered_off)
549 regulator_bulk_disable(arizona->num_core_supplies,
550 arizona->core_supplies);
554 if (arizona->has_fully_powered_off) {
555 arizona_disable_reset(arizona);
556 enable_irq(arizona->irq);
557 arizona->has_fully_powered_off = false;
560 regcache_cache_only(arizona->regmap, false);
562 switch (arizona->type) {
564 if (arizona->external_dcvdd) {
565 ret = arizona_connect_dcvdd(arizona);
570 ret = wm5102_patch(arizona);
572 dev_err(arizona->dev, "Failed to apply patch: %d\n",
577 ret = wm5102_apply_hardware_patch(arizona);
579 dev_err(arizona->dev,
580 "Failed to apply hardware patch: %d\n",
587 ret = arizona_wait_for_boot(arizona);
591 if (arizona->external_dcvdd) {
592 ret = arizona_connect_dcvdd(arizona);
597 * As this is only called for the internal regulator
598 * (where we know voltage ranges available) it is ok
599 * to request an exact range.
601 ret = regulator_set_voltage(arizona->dcvdd,
604 dev_err(arizona->dev,
605 "Failed to set resume voltage: %d\n",
611 ret = wm5110_apply_sleep_patch(arizona);
613 dev_err(arizona->dev,
614 "Failed to re-apply sleep patch: %d\n",
621 ret = arizona_wait_for_boot(arizona);
626 ret = arizona_wait_for_boot(arizona);
630 if (arizona->external_dcvdd) {
631 ret = arizona_connect_dcvdd(arizona);
638 ret = regcache_sync(arizona->regmap);
640 dev_err(arizona->dev, "Failed to restore register cache\n");
647 regcache_cache_only(arizona->regmap, true);
648 regulator_disable(arizona->dcvdd);
652 static int arizona_runtime_suspend(struct device *dev)
654 struct arizona *arizona = dev_get_drvdata(dev);
658 dev_dbg(arizona->dev, "Entering AoD mode\n");
660 switch (arizona->type) {
663 jd_active = arizona_is_jack_det_active(arizona);
667 if (arizona->external_dcvdd) {
668 ret = arizona_isolate_dcvdd(arizona);
673 * As this is only called for the internal regulator
674 * (where we know voltage ranges available) it is ok
675 * to request an exact range.
677 ret = regulator_set_voltage(arizona->dcvdd,
680 dev_err(arizona->dev,
681 "Failed to set suspend voltage: %d\n",
688 jd_active = arizona_is_jack_det_active(arizona);
692 if (arizona->external_dcvdd) {
693 ret = arizona_isolate_dcvdd(arizona);
699 ret = regmap_write(arizona->regmap,
700 ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
702 dev_err(arizona->dev,
703 "Failed to clear write sequencer: %d\n",
713 jd_active = arizona_is_jack_det_active(arizona);
717 if (arizona->external_dcvdd) {
718 ret = arizona_isolate_dcvdd(arizona);
725 regcache_cache_only(arizona->regmap, true);
726 regcache_mark_dirty(arizona->regmap);
727 regulator_disable(arizona->dcvdd);
729 /* Allow us to completely power down if no jack detection */
731 dev_dbg(arizona->dev, "Fully powering off\n");
733 arizona->has_fully_powered_off = true;
735 disable_irq_nosync(arizona->irq);
736 arizona_enable_reset(arizona);
737 regulator_bulk_disable(arizona->num_core_supplies,
738 arizona->core_supplies);
744 static int arizona_suspend(struct device *dev)
746 struct arizona *arizona = dev_get_drvdata(dev);
748 dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
749 disable_irq(arizona->irq);
754 static int arizona_suspend_noirq(struct device *dev)
756 struct arizona *arizona = dev_get_drvdata(dev);
758 dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
759 enable_irq(arizona->irq);
764 static int arizona_resume_noirq(struct device *dev)
766 struct arizona *arizona = dev_get_drvdata(dev);
768 dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
769 disable_irq(arizona->irq);
774 static int arizona_resume(struct device *dev)
776 struct arizona *arizona = dev_get_drvdata(dev);
778 dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
779 enable_irq(arizona->irq);
784 EXPORT_GPL_DEV_PM_OPS(arizona_pm_ops) = {
785 RUNTIME_PM_OPS(arizona_runtime_suspend,
786 arizona_runtime_resume,
788 SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
789 NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
790 arizona_resume_noirq)
794 static int arizona_of_get_core_pdata(struct arizona *arizona)
796 struct arizona_pdata *pdata = &arizona->pdata;
799 /* Handle old non-standard DT binding */
800 pdata->reset = devm_gpiod_get(arizona->dev, "wlf,reset", GPIOD_OUT_LOW);
801 if (IS_ERR(pdata->reset)) {
802 ret = PTR_ERR(pdata->reset);
805 * Reset missing will be caught when other binding is read
806 * but all other errors imply this binding is in use but has
807 * encountered a problem so should be handled.
809 if (ret == -EPROBE_DEFER)
811 else if (ret != -ENOENT && ret != -ENOSYS)
812 dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
818 ret = of_property_read_u32_array(arizona->dev->of_node,
820 pdata->gpio_defaults,
821 ARRAY_SIZE(pdata->gpio_defaults));
824 * All values are literal except out of range values
825 * which are chip default, translate into platform
826 * data which uses 0 as chip default and out of range
829 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
830 if (pdata->gpio_defaults[i] > 0xffff)
831 pdata->gpio_defaults[i] = 0;
832 else if (pdata->gpio_defaults[i] == 0)
833 pdata->gpio_defaults[i] = 0x10000;
836 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
843 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
849 static const struct mfd_cell early_devs[] = {
850 { .name = "arizona-ldo1" },
853 static const char * const wm5102_supplies[] = {
862 static const struct mfd_cell wm5102_devs[] = {
863 { .name = "arizona-micsupp" },
864 { .name = "arizona-gpio" },
865 { .name = "arizona-haptics" },
866 { .name = "arizona-pwm" },
868 .name = "wm5102-codec",
869 .parent_supplies = wm5102_supplies,
870 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
874 static const struct mfd_cell wm5110_devs[] = {
875 { .name = "arizona-micsupp" },
876 { .name = "arizona-gpio" },
877 { .name = "arizona-haptics" },
878 { .name = "arizona-pwm" },
880 .name = "wm5110-codec",
881 .parent_supplies = wm5102_supplies,
882 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
886 static const char * const cs47l24_supplies[] = {
892 static const struct mfd_cell cs47l24_devs[] = {
893 { .name = "arizona-gpio" },
894 { .name = "arizona-haptics" },
895 { .name = "arizona-pwm" },
897 .name = "cs47l24-codec",
898 .parent_supplies = cs47l24_supplies,
899 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
903 static const char * const wm8997_supplies[] = {
910 static const struct mfd_cell wm8997_devs[] = {
911 { .name = "arizona-micsupp" },
912 { .name = "arizona-gpio" },
913 { .name = "arizona-haptics" },
914 { .name = "arizona-pwm" },
916 .name = "wm8997-codec",
917 .parent_supplies = wm8997_supplies,
918 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
922 static const struct mfd_cell wm8998_devs[] = {
923 { .name = "arizona-micsupp" },
924 { .name = "arizona-gpio" },
925 { .name = "arizona-haptics" },
926 { .name = "arizona-pwm" },
928 .name = "wm8998-codec",
929 .parent_supplies = wm5102_supplies,
930 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
934 int arizona_dev_init(struct arizona *arizona)
936 static const char * const mclk_name[] = { "mclk1", "mclk2" };
937 struct device *dev = arizona->dev;
938 const char *type_name = NULL;
939 unsigned int reg, val;
940 int (*apply_patch)(struct arizona *) = NULL;
941 const struct mfd_cell *subdevs = NULL;
942 int n_subdevs = 0, ret, i;
944 dev_set_drvdata(arizona->dev, arizona);
945 mutex_init(&arizona->clk_lock);
947 if (dev_get_platdata(arizona->dev)) {
948 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
949 sizeof(arizona->pdata));
951 ret = arizona_of_get_core_pdata(arizona);
956 BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
957 for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
958 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
959 if (IS_ERR(arizona->mclk[i])) {
960 dev_info(arizona->dev, "Failed to get %s: %ld\n",
961 mclk_name[i], PTR_ERR(arizona->mclk[i]));
962 arizona->mclk[i] = NULL;
966 regcache_cache_only(arizona->regmap, true);
968 switch (arizona->type) {
977 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
978 arizona->core_supplies[i].supply
979 = wm5102_core_supplies[i];
980 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
983 dev_err(arizona->dev, "Unknown device type %d\n",
988 /* Mark DCVDD as external, LDO1 driver will clear if internal */
989 arizona->external_dcvdd = true;
991 switch (arizona->type) {
994 break; /* No LDO1 regulator */
996 ret = mfd_add_devices(arizona->dev, -1, early_devs,
997 ARRAY_SIZE(early_devs), NULL, 0, NULL);
999 dev_err(dev, "Failed to add early children: %d\n", ret);
1005 ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1006 arizona->core_supplies);
1008 dev_err(dev, "Failed to request core supplies: %d\n",
1014 * Don't use devres here because the only device we have to get
1015 * against is the MFD device and DCVDD will likely be supplied by
1016 * one of its children. Meaning that the regulator will be
1017 * destroyed by the time devres calls regulator put.
1019 arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1020 if (IS_ERR(arizona->dcvdd)) {
1021 ret = PTR_ERR(arizona->dcvdd);
1022 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1026 if (!arizona->pdata.reset) {
1027 /* Start out with /RESET low to put the chip into reset */
1028 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1030 if (IS_ERR(arizona->pdata.reset)) {
1031 ret = PTR_ERR(arizona->pdata.reset);
1032 if (ret == -EPROBE_DEFER)
1035 dev_err(arizona->dev,
1036 "Reset GPIO missing/malformed: %d\n", ret);
1038 arizona->pdata.reset = NULL;
1042 ret = regulator_bulk_enable(arizona->num_core_supplies,
1043 arizona->core_supplies);
1045 dev_err(dev, "Failed to enable core supplies: %d\n",
1050 ret = regulator_enable(arizona->dcvdd);
1052 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1056 arizona_disable_reset(arizona);
1058 regcache_cache_only(arizona->regmap, false);
1060 /* Verify that this is a chip we know about */
1061 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1063 dev_err(dev, "Failed to read ID register: %d\n", ret);
1075 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1080 /* If we have a /RESET GPIO we'll already be reset */
1081 if (!arizona->pdata.reset) {
1082 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1084 dev_err(dev, "Failed to reset device: %d\n", ret);
1088 usleep_range(1000, 5000);
1091 /* Ensure device startup is complete */
1092 switch (arizona->type) {
1094 ret = regmap_read(arizona->regmap,
1095 ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1098 "Failed to check write sequencer state: %d\n",
1100 } else if (val & 0x01) {
1101 ret = wm5102_clear_write_sequencer(arizona);
1110 ret = arizona_wait_for_boot(arizona);
1112 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1116 /* Read the device ID information & do device specific stuff */
1117 ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®);
1119 dev_err(dev, "Failed to read ID register: %d\n", ret);
1123 ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1126 dev_err(dev, "Failed to read revision register: %d\n", ret);
1129 arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1133 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1134 type_name = "WM5102";
1135 if (arizona->type != WM5102) {
1136 dev_warn(arizona->dev,
1137 "WM5102 registered as %d\n",
1139 arizona->type = WM5102;
1142 apply_patch = wm5102_patch;
1143 arizona->rev &= 0x7;
1144 subdevs = wm5102_devs;
1145 n_subdevs = ARRAY_SIZE(wm5102_devs);
1149 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1150 switch (arizona->type) {
1152 type_name = "WM5110";
1155 type_name = "WM8280";
1158 type_name = "WM5110";
1159 dev_warn(arizona->dev,
1160 "WM5110 registered as %d\n",
1162 arizona->type = WM5110;
1166 apply_patch = wm5110_patch;
1167 subdevs = wm5110_devs;
1168 n_subdevs = ARRAY_SIZE(wm5110_devs);
1172 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1173 switch (arizona->type) {
1175 type_name = "CS47L24";
1179 type_name = "WM1831";
1183 dev_warn(arizona->dev,
1184 "CS47L24 registered as %d\n",
1186 arizona->type = CS47L24;
1190 apply_patch = cs47l24_patch;
1191 subdevs = cs47l24_devs;
1192 n_subdevs = ARRAY_SIZE(cs47l24_devs);
1196 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1197 type_name = "WM8997";
1198 if (arizona->type != WM8997) {
1199 dev_warn(arizona->dev,
1200 "WM8997 registered as %d\n",
1202 arizona->type = WM8997;
1205 apply_patch = wm8997_patch;
1206 subdevs = wm8997_devs;
1207 n_subdevs = ARRAY_SIZE(wm8997_devs);
1211 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1212 switch (arizona->type) {
1214 type_name = "WM8998";
1218 type_name = "WM1814";
1222 type_name = "WM8998";
1223 dev_warn(arizona->dev,
1224 "WM8998 registered as %d\n",
1226 arizona->type = WM8998;
1229 apply_patch = wm8998_patch;
1230 subdevs = wm8998_devs;
1231 n_subdevs = ARRAY_SIZE(wm8998_devs);
1235 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1241 dev_err(arizona->dev,
1242 "No kernel support for device ID %x\n", reg);
1247 dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1250 ret = apply_patch(arizona);
1252 dev_err(arizona->dev, "Failed to apply patch: %d\n",
1257 switch (arizona->type) {
1259 ret = wm5102_apply_hardware_patch(arizona);
1261 dev_err(arizona->dev,
1262 "Failed to apply hardware patch: %d\n",
1269 ret = wm5110_apply_sleep_patch(arizona);
1271 dev_err(arizona->dev,
1272 "Failed to apply sleep patch: %d\n",
1282 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1283 if (!arizona->pdata.gpio_defaults[i])
1286 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1287 arizona->pdata.gpio_defaults[i]);
1291 if (!arizona->pdata.clk32k_src)
1292 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1294 switch (arizona->pdata.clk32k_src) {
1295 case ARIZONA_32KZ_MCLK1:
1296 case ARIZONA_32KZ_MCLK2:
1297 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1298 ARIZONA_CLK_32K_SRC_MASK,
1299 arizona->pdata.clk32k_src - 1);
1300 arizona_clk32k_enable(arizona);
1302 case ARIZONA_32KZ_NONE:
1303 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1304 ARIZONA_CLK_32K_SRC_MASK, 2);
1307 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1308 arizona->pdata.clk32k_src);
1313 for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1314 if (!arizona->pdata.micbias[i].mV &&
1315 !arizona->pdata.micbias[i].bypass)
1318 /* Apply default for bypass mode */
1319 if (!arizona->pdata.micbias[i].mV)
1320 arizona->pdata.micbias[i].mV = 2800;
1322 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1324 val <<= ARIZONA_MICB1_LVL_SHIFT;
1326 if (arizona->pdata.micbias[i].ext_cap)
1327 val |= ARIZONA_MICB1_EXT_CAP;
1329 if (arizona->pdata.micbias[i].discharge)
1330 val |= ARIZONA_MICB1_DISCH;
1332 if (arizona->pdata.micbias[i].soft_start)
1333 val |= ARIZONA_MICB1_RATE;
1335 if (arizona->pdata.micbias[i].bypass)
1336 val |= ARIZONA_MICB1_BYPASS;
1338 regmap_update_bits(arizona->regmap,
1339 ARIZONA_MIC_BIAS_CTRL_1 + i,
1340 ARIZONA_MICB1_LVL_MASK |
1341 ARIZONA_MICB1_EXT_CAP |
1342 ARIZONA_MICB1_DISCH |
1343 ARIZONA_MICB1_BYPASS |
1344 ARIZONA_MICB1_RATE, val);
1347 pm_runtime_set_active(arizona->dev);
1348 pm_runtime_enable(arizona->dev);
1350 /* Set up for interrupts */
1351 ret = arizona_irq_init(arizona);
1355 pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1356 pm_runtime_use_autosuspend(arizona->dev);
1358 arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1359 arizona_clkgen_err, arizona);
1360 arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1361 arizona_overclocked, arizona);
1362 arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1363 arizona_underclocked, arizona);
1365 ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1366 subdevs, n_subdevs, NULL, 0, NULL);
1369 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1376 arizona_irq_exit(arizona);
1378 pm_runtime_disable(arizona->dev);
1380 switch (arizona->pdata.clk32k_src) {
1381 case ARIZONA_32KZ_MCLK1:
1382 case ARIZONA_32KZ_MCLK2:
1383 arizona_clk32k_disable(arizona);
1389 arizona_enable_reset(arizona);
1390 regulator_disable(arizona->dcvdd);
1392 regulator_bulk_disable(arizona->num_core_supplies,
1393 arizona->core_supplies);
1395 regulator_put(arizona->dcvdd);
1397 mfd_remove_devices(dev);
1400 EXPORT_SYMBOL_GPL(arizona_dev_init);
1402 int arizona_dev_exit(struct arizona *arizona)
1404 disable_irq(arizona->irq);
1405 pm_runtime_disable(arizona->dev);
1407 regulator_disable(arizona->dcvdd);
1408 regulator_put(arizona->dcvdd);
1410 switch (arizona->pdata.clk32k_src) {
1411 case ARIZONA_32KZ_MCLK1:
1412 case ARIZONA_32KZ_MCLK2:
1413 arizona_clk32k_disable(arizona);
1419 mfd_remove_devices(arizona->dev);
1420 arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1421 arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1422 arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1423 arizona_irq_exit(arizona);
1424 arizona_enable_reset(arizona);
1426 regulator_bulk_disable(arizona->num_core_supplies,
1427 arizona->core_supplies);
1430 EXPORT_SYMBOL_GPL(arizona_dev_exit);
1432 MODULE_LICENSE("GPL v2");