2 * MFD core driver for Rockchip RK808
4 * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
6 * Author: Chris Zhong <zyw@rock-chips.com>
7 * Author: Zhang Qing <zhangqing@rock-chips.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms and conditions of the GNU General Public License,
11 * version 2, as published by the Free Software Foundation.
13 * This program is distributed in the hope it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 #include <linux/i2c.h>
20 #include <linux/interrupt.h>
21 #include <linux/kernel.h>
22 #include <linux/mfd/rk808.h>
23 #include <linux/mfd/core.h>
24 #include <linux/module.h>
25 #include <linux/of_device.h>
26 #include <linux/regmap.h>
28 struct rk808_reg_data {
34 static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
38 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
39 * we don't use that feature. It's better to cache.
40 * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
41 * bits are cleared in case when we shutoff anyway, but better safe.
45 case RK808_SECONDS_REG ... RK808_WEEKS_REG:
46 case RK808_RTC_STATUS_REG:
47 case RK808_VB_MON_REG:
48 case RK808_THERMAL_REG:
49 case RK808_DCDC_UV_STS_REG:
50 case RK808_LDO_UV_STS_REG:
51 case RK808_DCDC_PG_REG:
52 case RK808_LDO_PG_REG:
53 case RK808_DEVCTRL_REG:
54 case RK808_INT_STS_REG1:
55 case RK808_INT_STS_REG2:
62 static int rk808_shutdown(struct regmap *regmap)
66 ret = regmap_update_bits(regmap,
68 DEV_OFF_RST, DEV_OFF_RST);
72 static int rk816_shutdown(struct regmap *regmap)
76 ret = regmap_update_bits(regmap,
82 static int rk818_shutdown(struct regmap *regmap)
86 ret = regmap_update_bits(regmap,
92 static int rk805_shutdown_prepare(struct regmap *regmap)
96 /* close rtc int when power off */
97 regmap_update_bits(regmap,
98 RK808_INT_STS_MSK_REG1,
99 (0x3 << 5), (0x3 << 5));
100 regmap_update_bits(regmap,
102 (0x3 << 2), (0x0 << 2));
104 /* pmic sleep shutdown function */
105 ret = regmap_update_bits(regmap,
106 RK805_GPIO_IO_POL_REG,
107 SLP_SD_MSK, SHUTDOWN_FUN);
111 static bool rk818_is_volatile_reg(struct device *dev, unsigned int reg)
115 * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
116 * we don't use that feature. It's better to cache.
117 * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
118 * bits are cleared in case when we shutoff anyway, but better safe.
122 case RK808_SECONDS_REG ... RK808_WEEKS_REG:
123 case RK808_RTC_STATUS_REG:
124 case RK808_VB_MON_REG:
125 case RK808_THERMAL_REG:
126 case RK808_DCDC_EN_REG:
127 case RK808_DCDC_UV_STS_REG:
128 case RK808_LDO_UV_STS_REG:
129 case RK808_DCDC_PG_REG:
130 case RK808_LDO_PG_REG:
131 case RK808_DEVCTRL_REG:
132 case RK808_INT_STS_REG1:
133 case RK808_INT_STS_REG2:
134 case RK808_INT_STS_MSK_REG1:
135 case RK808_INT_STS_MSK_REG2:
136 case RK818_SUP_STS_REG ... RK818_SAVE_DATA19:
143 static const struct regmap_config rk808_regmap_config = {
146 .max_register = RK808_IO_POL_REG,
147 .cache_type = REGCACHE_RBTREE,
148 .volatile_reg = rk808_is_volatile_reg,
151 static const struct regmap_config rk805_regmap_config = {
154 .max_register = RK805_OFF_SOURCE_REG,
155 .cache_type = REGCACHE_RBTREE,
156 .volatile_reg = rk808_is_volatile_reg,
159 static const struct regmap_config rk816_regmap_config = {
162 .max_register = RK816_DATA18_REG,
163 .cache_type = REGCACHE_RBTREE,
164 .volatile_reg = rk818_is_volatile_reg,
167 static const struct regmap_config rk818_regmap_config = {
170 .max_register = RK818_SAVE_DATA19,
171 .cache_type = REGCACHE_RBTREE,
172 .volatile_reg = rk818_is_volatile_reg,
175 static struct resource rtc_resources[] = {
177 .start = RK808_IRQ_RTC_ALARM,
178 .end = RK808_IRQ_RTC_ALARM,
179 .flags = IORESOURCE_IRQ,
183 static struct resource pwrkey_resources[] = {
185 .start = RK805_IRQ_PWRON_RISE,
186 .end = RK805_IRQ_PWRON_RISE,
187 .flags = IORESOURCE_IRQ,
190 .start = RK805_IRQ_PWRON_FALL,
191 .end = RK805_IRQ_PWRON_FALL,
192 .flags = IORESOURCE_IRQ,
196 static struct resource rk816_pwrkey_resources[] = {
198 .start = RK816_IRQ_PWRON_RISE,
199 .end = RK816_IRQ_PWRON_RISE,
200 .flags = IORESOURCE_IRQ,
203 .start = RK816_IRQ_PWRON_FALL,
204 .end = RK816_IRQ_PWRON_FALL,
205 .flags = IORESOURCE_IRQ,
209 static const struct mfd_cell rk808s[] = {
210 { .name = "rk808-clkout", },
211 { .name = "rk808-regulator", },
214 .num_resources = ARRAY_SIZE(rtc_resources),
215 .resources = &rtc_resources[0],
219 static const struct rk808_reg_data rk808_pre_init_reg[] = {
220 { RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA },
221 { RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA },
222 { RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
223 { RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK, BUCK_ILMIN_200MA },
224 { RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_200MA },
225 { RK808_DCDC_UV_ACT_REG, BUCK_UV_ACT_MASK, BUCK_UV_ACT_DISABLE},
226 { RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
227 { RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
231 static const struct regmap_irq rk808_irqs[] = {
233 [RK808_IRQ_VOUT_LO] = {
234 .mask = RK808_IRQ_VOUT_LO_MSK,
237 [RK808_IRQ_VB_LO] = {
238 .mask = RK808_IRQ_VB_LO_MSK,
241 [RK808_IRQ_PWRON] = {
242 .mask = RK808_IRQ_PWRON_MSK,
245 [RK808_IRQ_PWRON_LP] = {
246 .mask = RK808_IRQ_PWRON_LP_MSK,
249 [RK808_IRQ_HOTDIE] = {
250 .mask = RK808_IRQ_HOTDIE_MSK,
253 [RK808_IRQ_RTC_ALARM] = {
254 .mask = RK808_IRQ_RTC_ALARM_MSK,
257 [RK808_IRQ_RTC_PERIOD] = {
258 .mask = RK808_IRQ_RTC_PERIOD_MSK,
263 [RK808_IRQ_PLUG_IN_INT] = {
264 .mask = RK808_IRQ_PLUG_IN_INT_MSK,
267 [RK808_IRQ_PLUG_OUT_INT] = {
268 .mask = RK808_IRQ_PLUG_OUT_INT_MSK,
273 static struct regmap_irq_chip rk808_irq_chip = {
276 .num_irqs = ARRAY_SIZE(rk808_irqs),
279 .status_base = RK808_INT_STS_REG1,
280 .mask_base = RK808_INT_STS_MSK_REG1,
281 .ack_base = RK808_INT_STS_REG1,
282 .init_ack_masked = true,
285 static const struct mfd_cell rk816s[] = {
286 { .name = "rk808-clkout", },
287 { .name = "rk808-regulator", },
288 { .name = "rk8xx-gpio", },
290 .name = "rk8xx-pwrkey",
291 .num_resources = ARRAY_SIZE(rk816_pwrkey_resources),
292 .resources = &rk816_pwrkey_resources[0],
296 .num_resources = ARRAY_SIZE(rtc_resources),
297 .resources = &rtc_resources[0],
301 static const struct rk808_reg_data rk816_pre_init_reg[] = {
303 {RK816_BUCK4_CONFIG_REG, BUCK4_MAX_ILIMIT, REG_WRITE_MSK},
304 /* hotdie temperature: 105c*/
305 {RK816_THERMAL_REG, TEMP105C, REG_WRITE_MSK},
306 /* set buck 12.5mv/us */
307 {RK816_BUCK1_CONFIG_REG, BUCK_RATE_12_5MV_US, BUCK_RATE_MSK},
308 {RK816_BUCK2_CONFIG_REG, BUCK_RATE_12_5MV_US, BUCK_RATE_MSK},
309 /* enable RTC_PERIOD & RTC_ALARM int */
310 {RK816_INT_STS_MSK_REG2, RTC_PERIOD_ALARM_INT_EN, REG_WRITE_MSK},
311 /* set bat 3.0 low and act shutdown */
312 {RK816_VB_MON_REG, RK816_VBAT_LOW_3V0 | EN_VABT_LOW_SHUT_DOWN,
313 VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK},
314 /* enable PWRON rising/faling int */
315 {RK816_INT_STS_MSK_REG1, RK816_PWRON_FALL_RISE_INT_EN, REG_WRITE_MSK},
316 /* enable PLUG IN/OUT int */
317 {RK816_INT_STS_MSK_REG3, PLUGIN_OUT_INT_EN, REG_WRITE_MSK},
318 /* clear int flags */
319 {RK816_INT_STS_REG1, ALL_INT_FLAGS_ST, REG_WRITE_MSK},
320 {RK816_INT_STS_REG2, ALL_INT_FLAGS_ST, REG_WRITE_MSK},
321 {RK816_INT_STS_REG3, ALL_INT_FLAGS_ST, REG_WRITE_MSK},
322 {RK816_DCDC_EN_REG2, BOOST_DISABLE, BOOST_EN_MASK},
325 static const struct regmap_irq rk816_irqs[] = {
327 [RK816_IRQ_PWRON_FALL] = {
328 .mask = RK816_IRQ_PWRON_FALL_MSK,
331 [RK816_IRQ_PWRON_RISE] = {
332 .mask = RK816_IRQ_PWRON_RISE_MSK,
335 [RK816_IRQ_VB_LOW] = {
336 .mask = RK816_IRQ_VB_LOW_MSK,
339 [RK816_IRQ_PWRON] = {
340 .mask = RK816_IRQ_PWRON_MSK,
343 [RK816_IRQ_PWRON_LP] = {
344 .mask = RK816_IRQ_PWRON_LP_MSK,
347 [RK816_IRQ_HOTDIE] = {
348 .mask = RK816_IRQ_HOTDIE_MSK,
351 [RK816_IRQ_RTC_ALARM] = {
352 .mask = RK816_IRQ_RTC_ALARM_MSK,
355 [RK816_IRQ_RTC_PERIOD] = {
356 .mask = RK816_IRQ_RTC_PERIOD_MSK,
359 [RK816_IRQ_USB_OV] = {
360 .mask = RK816_IRQ_USB_OV_MSK,
365 static struct regmap_irq_chip rk816_irq_chip = {
368 .num_irqs = ARRAY_SIZE(rk816_irqs),
371 .status_base = RK816_INT_STS_REG1,
372 .mask_base = RK816_INT_STS_MSK_REG1,
373 .ack_base = RK816_INT_STS_REG1,
374 .init_ack_masked = true,
377 static const struct mfd_cell rk818s[] = {
378 { .name = "rk808-clkout", },
379 { .name = "rk808-regulator", },
380 { .name = "rk818-battery", .of_compatible = "rk818-battery", },
381 { .name = "rk818-charger", },
384 .num_resources = ARRAY_SIZE(rtc_resources),
385 .resources = &rtc_resources[0],
389 static const struct rk808_reg_data rk818_pre_init_reg[] = {
390 { RK818_H5V_EN_REG, REF_RDY_CTRL_ENABLE | H5V_EN_MASK,
391 REF_RDY_CTRL_ENABLE | H5V_EN_ENABLE },
392 { RK818_DCDC_EN_REG, BOOST_EN_MASK | SWITCH_EN_MASK,
393 BOOST_EN_ENABLE | SWITCH_EN_ENABLE },
394 { RK818_SLEEP_SET_OFF_REG1, OTG_SLP_SET_MASK, OTG_SLP_SET_OFF },
395 { RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA },
396 { RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
399 static const struct regmap_irq rk818_irqs[] = {
401 [RK818_IRQ_VOUT_LO] = {
402 .mask = VOUT_LO_MASK,
405 [RK818_IRQ_VB_LO] = {
409 [RK818_IRQ_PWRON] = {
413 [RK818_IRQ_PWRON_LP] = {
414 .mask = PWRON_LP_MASK,
417 [RK818_IRQ_HOTDIE] = {
421 [RK818_IRQ_RTC_ALARM] = {
422 .mask = RTC_ALARM_MASK,
425 [RK818_IRQ_RTC_PERIOD] = {
426 .mask = RTC_PERIOD_MASK,
429 [RK818_IRQ_USB_OV] = {
434 [RK818_IRQ_PLUG_IN] = {
435 .mask = PLUG_IN_MASK,
438 [RK818_IRQ_PLUG_OUT] = {
439 .mask = PLUG_OUT_MASK,
442 [RK818_IRQ_CHG_OK] = {
446 [RK818_IRQ_CHG_TE] = {
450 [RK818_IRQ_CHG_TS1] = {
458 [RK818_IRQ_CHG_CVTLIM] = {
459 .mask = CHG_CVTLIM_MASK,
462 [RK818_IRQ_DISCHG_ILIM] = {
463 .mask = DISCHG_ILIM_MASK,
468 static struct regmap_irq_chip rk818_irq_chip = {
471 .num_irqs = ARRAY_SIZE(rk818_irqs),
474 .status_base = RK808_INT_STS_REG1,
475 .mask_base = RK808_INT_STS_MSK_REG1,
476 .ack_base = RK808_INT_STS_REG1,
477 .init_ack_masked = true,
480 static const struct regmap_irq rk805_irqs[] = {
481 [RK805_IRQ_PWRON_RISE] = {
482 .mask = RK805_IRQ_PWRON_RISE_MSK,
485 [RK805_IRQ_VB_LOW] = {
486 .mask = RK805_IRQ_VB_LOW_MSK,
489 [RK805_IRQ_PWRON] = {
490 .mask = RK805_IRQ_PWRON_MSK,
493 [RK805_IRQ_PWRON_LP] = {
494 .mask = RK805_IRQ_PWRON_LP_MSK,
497 [RK805_IRQ_HOTDIE] = {
498 .mask = RK805_IRQ_HOTDIE_MSK,
501 [RK805_IRQ_RTC_ALARM] = {
502 .mask = RK805_IRQ_RTC_ALARM_MSK,
505 [RK805_IRQ_RTC_PERIOD] = {
506 .mask = RK805_IRQ_RTC_PERIOD_MSK,
509 [RK805_IRQ_PWRON_FALL] = {
510 .mask = RK805_IRQ_PWRON_FALL_MSK,
515 static struct regmap_irq_chip rk805_irq_chip = {
518 .num_irqs = ARRAY_SIZE(rk805_irqs),
520 .status_base = RK805_INT_STS_REG,
521 .mask_base = RK805_INT_STS_MSK_REG,
522 .ack_base = RK805_INT_STS_REG,
523 .init_ack_masked = true,
526 static const struct mfd_cell rk805s[] = {
527 { .name = "rk808-clkout", },
528 { .name = "rk818-regulator", },
529 { .name = "rk8xx-gpio", },
531 .name = "rk8xx-pwrkey",
532 .num_resources = ARRAY_SIZE(pwrkey_resources),
533 .resources = &pwrkey_resources[0],
537 .num_resources = ARRAY_SIZE(rtc_resources),
538 .resources = &rtc_resources[0],
542 static const struct rk808_reg_data rk805_pre_init_reg[] = {
543 {RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
544 {RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
545 {RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
546 {RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
549 static int (*pm_shutdown)(struct regmap *regmap);
550 static int (*pm_shutdown_prepare)(struct regmap *regmap);
551 static struct i2c_client *rk808_i2c_client;
553 static void rk808_device_shutdown_prepare(void)
556 struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
559 dev_warn(&rk808_i2c_client->dev,
560 "have no rk808, so do nothing here\n");
564 if (pm_shutdown_prepare) {
565 ret = pm_shutdown_prepare(rk808->regmap);
567 dev_err(&rk808_i2c_client->dev,
568 "power off prepare error!\n");
572 static void rk808_device_shutdown(void)
575 struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
578 dev_warn(&rk808_i2c_client->dev,
579 "have no rk808, so do nothing here\n");
583 /* close rtc int when power off */
584 regmap_update_bits(rk808->regmap,
585 RK808_INT_STS_MSK_REG1,
586 (0x3 << 5), (0x3 << 5));
587 regmap_update_bits(rk808->regmap,
589 (0x3 << 2), (0x0 << 2));
591 ret = pm_shutdown(rk808->regmap);
593 dev_err(&rk808_i2c_client->dev, "power off error!\n");
597 static ssize_t rk8xx_dbg_store(struct device *dev,
598 struct device_attribute *attr,
599 const char *buf, size_t count)
603 u32 input[2], addr, data;
604 struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
606 ret = sscanf(buf, "%c ", &cmd);
609 ret = sscanf(buf, "%c %x %x ", &cmd, &input[0], &input[1]);
611 pr_err("erro! cmd format: echo w [addr] [value]\n");
614 addr = input[0] & 0xff;
615 data = input[1] & 0xff;
616 pr_info("cmd : %c %x %x\n\n", cmd, input[0], input[1]);
617 regmap_write(rk808->regmap, addr, data);
618 regmap_read(rk808->regmap, addr, &data);
619 pr_info("new: %x %x\n", addr, data);
622 ret = sscanf(buf, "%c %x ", &cmd, &input[0]);
624 pr_err("erro! cmd format: echo r [addr]\n");
627 pr_info("cmd : %c %x\n\n", cmd, input[0]);
628 addr = input[0] & 0xff;
629 regmap_read(rk808->regmap, addr, &data);
630 pr_info("%x %x\n", input[0], data);
633 pr_err("Unknown command\n");
641 static struct kobject *rk8xx_kobj;
642 static struct device_attribute rk8xx_attrs =
643 __ATTR(rk8xx_dbg, 0200, NULL, rk8xx_dbg_store);
645 static const struct of_device_id rk808_of_match[] = {
646 { .compatible = "rockchip,rk805" },
647 { .compatible = "rockchip,rk808" },
648 { .compatible = "rockchip,rk816" },
649 { .compatible = "rockchip,rk818" },
653 MODULE_DEVICE_TABLE(of, rk808_of_match);
655 static int rk808_probe(struct i2c_client *client,
656 const struct i2c_device_id *id)
658 struct device_node *np = client->dev.of_node;
660 int (*pm_shutdown_fn)(struct regmap *regmap) = NULL;
661 int (*pm_shutdown_prepare_fn)(struct regmap *regmap) = NULL;
662 const struct rk808_reg_data *pre_init_reg;
663 const struct regmap_config *regmap_config;
664 const struct regmap_irq_chip *irq_chip;
665 const struct mfd_cell *cell;
666 u8 on_source = 0, off_source = 0;
667 int msb, lsb, reg_num, cell_num;
668 int ret, i, pm_off = 0;
669 unsigned int on, off;
672 dev_err(&client->dev, "No interrupt support, no core IRQ\n");
676 rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
680 /* read Chip variant */
681 msb = i2c_smbus_read_byte_data(client, RK808_ID_MSB);
683 dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
688 lsb = i2c_smbus_read_byte_data(client, RK808_ID_LSB);
690 dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
695 rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
696 dev_info(&client->dev, "Pmic Chip id: 0x%lx\n", rk808->variant);
698 /* set Chip platform init data*/
699 switch (rk808->variant) {
702 cell_num = ARRAY_SIZE(rk818s);
703 pre_init_reg = rk818_pre_init_reg;
704 reg_num = ARRAY_SIZE(rk818_pre_init_reg);
705 regmap_config = &rk818_regmap_config;
706 irq_chip = &rk818_irq_chip;
707 pm_shutdown_fn = rk818_shutdown;
708 on_source = RK818_ON_SOURCE_REG;
709 off_source = RK818_OFF_SOURCE_REG;
713 cell_num = ARRAY_SIZE(rk816s);
714 pre_init_reg = rk816_pre_init_reg;
715 reg_num = ARRAY_SIZE(rk816_pre_init_reg);
716 regmap_config = &rk816_regmap_config;
717 irq_chip = &rk816_irq_chip;
718 pm_shutdown_fn = rk816_shutdown;
719 on_source = RK816_ON_SOURCE_REG;
720 off_source = RK816_OFF_SOURCE_REG;
724 cell_num = ARRAY_SIZE(rk808s);
725 pre_init_reg = rk808_pre_init_reg;
726 reg_num = ARRAY_SIZE(rk808_pre_init_reg);
727 regmap_config = &rk808_regmap_config;
728 irq_chip = &rk808_irq_chip;
729 pm_shutdown_fn = rk808_shutdown;
733 cell_num = ARRAY_SIZE(rk805s);
734 pre_init_reg = rk805_pre_init_reg;
735 reg_num = ARRAY_SIZE(rk805_pre_init_reg);
736 regmap_config = &rk805_regmap_config;
737 irq_chip = &rk805_irq_chip;
738 pm_shutdown_prepare_fn = rk805_shutdown_prepare;
739 on_source = RK805_ON_SOURCE_REG;
740 off_source = RK805_OFF_SOURCE_REG;
743 dev_err(&client->dev, "unsupported RK8XX ID 0x%lx\n",
748 rk808->regmap = devm_regmap_init_i2c(client, regmap_config);
749 if (IS_ERR(rk808->regmap)) {
750 dev_err(&client->dev, "regmap initialization failed\n");
751 return PTR_ERR(rk808->regmap);
754 /* on & off source */
755 if (on_source && off_source) {
756 ret = regmap_read(rk808->regmap, on_source, &on);
758 dev_err(&client->dev, "read 0x%x failed\n", on_source);
762 ret = regmap_read(rk808->regmap, off_source, &off);
764 dev_err(&client->dev, "read 0x%x failed\n", off_source);
768 dev_info(&client->dev, "source: on=0x%02x, off=0x%02x\n",
772 for (i = 0; i < reg_num; i++) {
773 ret = regmap_update_bits(rk808->regmap,
774 pre_init_reg[i].addr,
775 pre_init_reg[i].mask,
776 pre_init_reg[i].value);
778 dev_err(&client->dev,
780 pre_init_reg[i].addr);
785 ret = regmap_add_irq_chip(rk808->regmap, client->irq,
787 irq_chip, &rk808->irq_data);
789 dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
794 i2c_set_clientdata(client, rk808);
796 ret = mfd_add_devices(&client->dev, -1,
798 NULL, 0, regmap_irq_get_domain(rk808->irq_data));
800 dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
804 pm_off = of_property_read_bool(np,
805 "rockchip,system-power-controller");
807 rk808_i2c_client = client;
808 if (pm_shutdown_prepare_fn) {
809 pm_shutdown_prepare = pm_shutdown_prepare_fn;
810 pm_power_off_prepare = rk808_device_shutdown_prepare;
812 if (pm_shutdown_fn) {
813 pm_shutdown = pm_shutdown_fn;
814 pm_power_off = rk808_device_shutdown;
818 rk8xx_kobj = kobject_create_and_add("rk8xx", NULL);
820 ret = sysfs_create_file(rk8xx_kobj, &rk8xx_attrs.attr);
822 dev_err(&client->dev, "create rk8xx sysfs error\n");
828 regmap_del_irq_chip(client->irq, rk808->irq_data);
832 static int rk808_remove(struct i2c_client *client)
834 struct rk808 *rk808 = i2c_get_clientdata(client);
836 regmap_del_irq_chip(client->irq, rk808->irq_data);
837 mfd_remove_devices(&client->dev);
838 if (pm_power_off == rk808_device_shutdown)
840 if (pm_power_off_prepare == rk808_device_shutdown_prepare)
841 pm_power_off_prepare = NULL;
846 static const struct i2c_device_id rk808_ids[] = {
853 MODULE_DEVICE_TABLE(i2c, rk808_ids);
855 static struct i2c_driver rk808_i2c_driver = {
858 .of_match_table = rk808_of_match,
860 .probe = rk808_probe,
861 .remove = rk808_remove,
862 .id_table = rk808_ids,
865 module_i2c_driver(rk808_i2c_driver);
867 MODULE_LICENSE("GPL");
868 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
869 MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
870 MODULE_AUTHOR("Chen jianhong <chenjh@rock-chips.com>");
871 MODULE_DESCRIPTION("RK808 PMIC driver");