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tmp_kernel_5.15/drivers/mfd/rk808.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* MFD core driver for Rockchip RK808/RK818
*
* Copyright (c) 2014-2018, Fuzhou Rockchip Electronics Co., Ltd
*
* Author: Chris Zhong <zyw@rock-chips.com>
* Author: Zhang Qing <zhangqing@rock-chips.com>
*
* Copyright (C) 2016 PHYTEC Messtechnik GmbH
*
* Author: Wadim Egorov <w.egorov@phytec.de>
*/
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/rk808.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/reboot.h>
#include <linux/regmap.h>
#include <linux/syscore_ops.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/devinfo.h>
struct rk808_reg_data {
int addr;
int mask;
int value;
};
static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
* - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
* bits are cleared in case when we shutoff anyway, but better safe.
*/
switch (reg) {
case RK808_SECONDS_REG ... RK808_WEEKS_REG:
case RK808_RTC_STATUS_REG:
case RK808_VB_MON_REG:
case RK808_THERMAL_REG:
case RK808_DCDC_UV_STS_REG:
case RK808_LDO_UV_STS_REG:
case RK808_DCDC_PG_REG:
case RK808_LDO_PG_REG:
case RK808_DEVCTRL_REG:
case RK808_INT_STS_REG1:
case RK808_INT_STS_REG2:
return true;
}
return false;
}
static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
*/
switch (reg) {
case RK817_SECONDS_REG ... RK817_WEEKS_REG:
case RK817_RTC_STATUS_REG:
case RK817_ADC_CONFIG0 ... RK817_CURE_ADC_K0:
case RK817_CHRG_STS:
case RK817_CHRG_OUT:
case RK817_CHRG_IN:
case RK817_SYS_STS:
case RK817_INT_STS_REG0:
case RK817_INT_STS_REG1:
case RK817_INT_STS_REG2:
return true;
}
return false;
}
static bool rk818_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
* - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
* bits are cleared in case when we shutoff anyway, but better safe.
*/
switch (reg) {
case RK808_SECONDS_REG ... RK808_WEEKS_REG:
case RK808_RTC_STATUS_REG:
case RK808_VB_MON_REG:
case RK808_THERMAL_REG:
case RK808_DCDC_EN_REG:
case RK808_LDO_EN_REG:
case RK808_DCDC_UV_STS_REG:
case RK808_LDO_UV_STS_REG:
case RK808_DCDC_PG_REG:
case RK808_LDO_PG_REG:
case RK808_DEVCTRL_REG:
case RK808_INT_STS_REG1:
case RK808_INT_STS_REG2:
case RK808_INT_STS_MSK_REG1:
case RK808_INT_STS_MSK_REG2:
case RK816_INT_STS_REG1:
case RK816_INT_STS_MSK_REG1:
case RK818_SUP_STS_REG ... RK818_SAVE_DATA19:
return true;
}
return false;
}
static const struct regmap_config rk818_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK818_SAVE_DATA19,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk818_is_volatile_reg,
};
static const struct regmap_config rk805_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK805_OFF_SOURCE_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk808_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK808_IO_POL_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk816_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK816_DATA18_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk818_is_volatile_reg,
};
static const struct regmap_config rk817_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK817_GPIO_INT_CFG,
.num_reg_defaults_raw = RK817_GPIO_INT_CFG + 1,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk817_is_volatile_reg,
};
static struct resource rtc_resources[] = {
DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM),
};
static struct resource rk816_rtc_resources[] = {
DEFINE_RES_IRQ(RK816_IRQ_RTC_ALARM),
};
static struct resource rk817_rtc_resources[] = {
DEFINE_RES_IRQ(RK817_IRQ_RTC_ALARM),
};
static struct resource rk805_key_resources[] = {
DEFINE_RES_IRQ(RK805_IRQ_PWRON_FALL),
DEFINE_RES_IRQ(RK805_IRQ_PWRON_RISE),
};
static struct resource rk816_pwrkey_resources[] = {
DEFINE_RES_IRQ(RK816_IRQ_PWRON_FALL),
DEFINE_RES_IRQ(RK816_IRQ_PWRON_RISE),
};
static struct resource rk817_pwrkey_resources[] = {
DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL),
DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
};
static const struct mfd_cell rk805s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
{ .name = "rk805-pinctrl", },
{
.name = "rk808-rtc",
.num_resources = ARRAY_SIZE(rtc_resources),
.resources = &rtc_resources[0],
},
{ .name = "rk805-pwrkey",
.num_resources = ARRAY_SIZE(rk805_key_resources),
.resources = &rk805_key_resources[0],
},
};
static const struct mfd_cell rk808s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
{
.name = "rk808-rtc",
.num_resources = ARRAY_SIZE(rtc_resources),
.resources = rtc_resources,
},
};
static const struct mfd_cell rk816s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
{ .name = "rk805-pinctrl", },
{ .name = "rk816-battery", .of_compatible = "rk816-battery", },
{
.name = "rk805-pwrkey",
.num_resources = ARRAY_SIZE(rk816_pwrkey_resources),
.resources = &rk816_pwrkey_resources[0],
},
{
.name = "rk808-rtc",
.num_resources = ARRAY_SIZE(rk816_rtc_resources),
.resources = &rk816_rtc_resources[0],
},
};
static const struct mfd_cell rk817s[] = {
{ .name = "rk808-clkout",},
{ .name = "rk808-regulator",},
{ .name = "rk817-battery", .of_compatible = "rk817,battery", },
{ .name = "rk817-charger", .of_compatible = "rk817,charger", },
{
.name = "rk805-pwrkey",
.num_resources = ARRAY_SIZE(rk817_pwrkey_resources),
.resources = &rk817_pwrkey_resources[0],
},
{
.name = "rk808-rtc",
.num_resources = ARRAY_SIZE(rk817_rtc_resources),
.resources = &rk817_rtc_resources[0],
},
{
.name = "rk817-codec",
.of_compatible = "rockchip,rk817-codec",
},
};
static const struct mfd_cell rk818s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
{ .name = "rk818-battery", .of_compatible = "rk818-battery", },
{ .name = "rk818-charger", },
{
.name = "rk808-rtc",
.num_resources = ARRAY_SIZE(rtc_resources),
.resources = rtc_resources,
},
};
static const struct rk808_reg_data rk805_pre_init_reg[] = {
{RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
{RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
{RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
{RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
};
static struct rk808_reg_data rk805_suspend_reg[] = {
{RK805_BUCK3_CONFIG_REG, PWM_MODE_MSK, AUTO_PWM_MODE},
};
static struct rk808_reg_data rk805_resume_reg[] = {
{RK805_BUCK3_CONFIG_REG, PWM_MODE_MSK, FPWM_MODE},
};
static const struct rk808_reg_data rk808_pre_init_reg[] = {
{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA },
{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA },
{ RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
{ RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK, BUCK_ILMIN_200MA },
{ RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_200MA },
{ RK808_DCDC_UV_ACT_REG, BUCK_UV_ACT_MASK, BUCK_UV_ACT_DISABLE},
{ RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
{ RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
VB_LO_SEL_3500MV },
};
static const struct rk808_reg_data rk816_pre_init_reg[] = {
/* buck4 Max ILMIT*/
{ RK816_BUCK4_CONFIG_REG, REG_WRITE_MSK, BUCK4_MAX_ILIMIT },
/* hotdie temperature: 105c*/
{ RK816_THERMAL_REG, REG_WRITE_MSK, TEMP105C },
/* set buck 12.5mv/us */
{ RK816_BUCK1_CONFIG_REG, BUCK_RATE_MSK, BUCK_RATE_12_5MV_US },
{ RK816_BUCK2_CONFIG_REG, BUCK_RATE_MSK, BUCK_RATE_12_5MV_US },
/* enable RTC_PERIOD & RTC_ALARM int */
{ RK816_INT_STS_MSK_REG2, REG_WRITE_MSK, RTC_PERIOD_ALARM_INT_EN },
/* set bat 3.0 low and act shutdown */
{ RK816_VB_MON_REG, VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK,
RK816_VBAT_LOW_3V0 | EN_VABT_LOW_SHUT_DOWN },
/* enable PWRON rising/faling int */
{ RK816_INT_STS_MSK_REG1, REG_WRITE_MSK, RK816_PWRON_FALL_RISE_INT_EN },
/* enable PLUG IN/OUT int */
{ RK816_INT_STS_MSK_REG3, REG_WRITE_MSK, PLUGIN_OUT_INT_EN },
/* clear int flags */
{ RK816_INT_STS_REG1, REG_WRITE_MSK, ALL_INT_FLAGS_ST },
{ RK816_INT_STS_REG2, REG_WRITE_MSK, ALL_INT_FLAGS_ST },
{ RK816_INT_STS_REG3, REG_WRITE_MSK, ALL_INT_FLAGS_ST },
{ RK816_DCDC_EN_REG2, BOOST_EN_MASK, BOOST_DISABLE },
/* set write mask bit 1, otherwise 'is_enabled()' get wrong status */
{ RK816_LDO_EN_REG1, REGS_WMSK, REGS_WMSK },
{ RK816_LDO_EN_REG2, REGS_WMSK, REGS_WMSK },
};
static const struct rk808_reg_data rk817_pre_init_reg[] = {
{RK817_SYS_CFG(3), RK817_SLPPOL_MSK, RK817_SLPPOL_L},
{RK817_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
{RK817_GPIO_INT_CFG, RK817_INT_POL_MSK, RK817_INT_POL_L},
{RK817_SYS_CFG(1), RK817_HOTDIE_TEMP_MSK | RK817_TSD_TEMP_MSK,
RK817_HOTDIE_105 | RK817_TSD_140},
};
static const struct rk808_reg_data rk818_pre_init_reg[] = {
/* improve efficiency */
{ RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_250MA },
{ RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA },
{ RK818_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
{ RK818_USB_CTRL_REG, RK818_USB_ILIM_SEL_MASK,
RK818_USB_ILMIN_2000MA },
/* close charger when usb lower then 3.4V */
{ RK818_USB_CTRL_REG, RK818_USB_CHG_SD_VSEL_MASK,
(0x7 << 4) },
/* no action when vref */
{ RK818_H5V_EN_REG, BIT(1), RK818_REF_RDY_CTRL },
/* enable HDMI 5V */
{ RK818_H5V_EN_REG, BIT(0), RK818_H5V_EN },
{ RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
{ RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
VB_LO_SEL_3500MV },
{RK808_CLK32OUT_REG, CLK32KOUT2_FUNC_MASK, CLK32KOUT2_FUNC},
};
static const struct regmap_irq rk805_irqs[] = {
[RK805_IRQ_PWRON_RISE] = {
.mask = RK805_IRQ_PWRON_RISE_MSK,
.reg_offset = 0,
},
[RK805_IRQ_VB_LOW] = {
.mask = RK805_IRQ_VB_LOW_MSK,
.reg_offset = 0,
},
[RK805_IRQ_PWRON] = {
.mask = RK805_IRQ_PWRON_MSK,
.reg_offset = 0,
},
[RK805_IRQ_PWRON_LP] = {
.mask = RK805_IRQ_PWRON_LP_MSK,
.reg_offset = 0,
},
[RK805_IRQ_HOTDIE] = {
.mask = RK805_IRQ_HOTDIE_MSK,
.reg_offset = 0,
},
[RK805_IRQ_RTC_ALARM] = {
.mask = RK805_IRQ_RTC_ALARM_MSK,
.reg_offset = 0,
},
[RK805_IRQ_RTC_PERIOD] = {
.mask = RK805_IRQ_RTC_PERIOD_MSK,
.reg_offset = 0,
},
[RK805_IRQ_PWRON_FALL] = {
.mask = RK805_IRQ_PWRON_FALL_MSK,
.reg_offset = 0,
},
};
static const struct regmap_irq rk808_irqs[] = {
/* INT_STS */
[RK808_IRQ_VOUT_LO] = {
.mask = RK808_IRQ_VOUT_LO_MSK,
.reg_offset = 0,
},
[RK808_IRQ_VB_LO] = {
.mask = RK808_IRQ_VB_LO_MSK,
.reg_offset = 0,
},
[RK808_IRQ_PWRON] = {
.mask = RK808_IRQ_PWRON_MSK,
.reg_offset = 0,
},
[RK808_IRQ_PWRON_LP] = {
.mask = RK808_IRQ_PWRON_LP_MSK,
.reg_offset = 0,
},
[RK808_IRQ_HOTDIE] = {
.mask = RK808_IRQ_HOTDIE_MSK,
.reg_offset = 0,
},
[RK808_IRQ_RTC_ALARM] = {
.mask = RK808_IRQ_RTC_ALARM_MSK,
.reg_offset = 0,
},
[RK808_IRQ_RTC_PERIOD] = {
.mask = RK808_IRQ_RTC_PERIOD_MSK,
.reg_offset = 0,
},
/* INT_STS2 */
[RK808_IRQ_PLUG_IN_INT] = {
.mask = RK808_IRQ_PLUG_IN_INT_MSK,
.reg_offset = 1,
},
[RK808_IRQ_PLUG_OUT_INT] = {
.mask = RK808_IRQ_PLUG_OUT_INT_MSK,
.reg_offset = 1,
},
};
static struct rk808_reg_data rk816_suspend_reg[] = {
/* set bat 3.4v low and act irq */
{ RK816_VB_MON_REG, VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK,
RK816_VBAT_LOW_3V4 | EN_VBAT_LOW_IRQ },
};
static struct rk808_reg_data rk816_resume_reg[] = {
/* set bat 3.0v low and act shutdown */
{ RK816_VB_MON_REG, VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK,
RK816_VBAT_LOW_3V0 | EN_VABT_LOW_SHUT_DOWN },
};
static const struct regmap_irq rk816_irqs[] = {
/* INT_STS */
[RK816_IRQ_PWRON_FALL] = {
.mask = RK816_IRQ_PWRON_FALL_MSK,
.reg_offset = 0,
},
[RK816_IRQ_PWRON_RISE] = {
.mask = RK816_IRQ_PWRON_RISE_MSK,
.reg_offset = 0,
},
[RK816_IRQ_VB_LOW] = {
.mask = RK816_IRQ_VB_LOW_MSK,
.reg_offset = 1,
},
[RK816_IRQ_PWRON] = {
.mask = RK816_IRQ_PWRON_MSK,
.reg_offset = 1,
},
[RK816_IRQ_PWRON_LP] = {
.mask = RK816_IRQ_PWRON_LP_MSK,
.reg_offset = 1,
},
[RK816_IRQ_HOTDIE] = {
.mask = RK816_IRQ_HOTDIE_MSK,
.reg_offset = 1,
},
[RK816_IRQ_RTC_ALARM] = {
.mask = RK816_IRQ_RTC_ALARM_MSK,
.reg_offset = 1,
},
[RK816_IRQ_RTC_PERIOD] = {
.mask = RK816_IRQ_RTC_PERIOD_MSK,
.reg_offset = 1,
},
[RK816_IRQ_USB_OV] = {
.mask = RK816_IRQ_USB_OV_MSK,
.reg_offset = 1,
},
};
static struct rk808_reg_data rk818_suspend_reg[] = {
/* set bat 3.4v low and act irq */
{ RK808_VB_MON_REG, VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK,
RK808_VBAT_LOW_3V4 | EN_VBAT_LOW_IRQ },
};
static struct rk808_reg_data rk818_resume_reg[] = {
/* set bat 3.0v low and act shutdown */
{ RK808_VB_MON_REG, VBAT_LOW_VOL_MASK | VBAT_LOW_ACT_MASK,
RK808_VBAT_LOW_3V0 | EN_VABT_LOW_SHUT_DOWN },
};
static const struct regmap_irq rk818_irqs[] = {
/* INT_STS */
[RK818_IRQ_VOUT_LO] = {
.mask = RK818_IRQ_VOUT_LO_MSK,
.reg_offset = 0,
},
[RK818_IRQ_VB_LO] = {
.mask = RK818_IRQ_VB_LO_MSK,
.reg_offset = 0,
},
[RK818_IRQ_PWRON] = {
.mask = RK818_IRQ_PWRON_MSK,
.reg_offset = 0,
},
[RK818_IRQ_PWRON_LP] = {
.mask = RK818_IRQ_PWRON_LP_MSK,
.reg_offset = 0,
},
[RK818_IRQ_HOTDIE] = {
.mask = RK818_IRQ_HOTDIE_MSK,
.reg_offset = 0,
},
[RK818_IRQ_RTC_ALARM] = {
.mask = RK818_IRQ_RTC_ALARM_MSK,
.reg_offset = 0,
},
[RK818_IRQ_RTC_PERIOD] = {
.mask = RK818_IRQ_RTC_PERIOD_MSK,
.reg_offset = 0,
},
[RK818_IRQ_USB_OV] = {
.mask = RK818_IRQ_USB_OV_MSK,
.reg_offset = 0,
},
/* INT_STS2 */
[RK818_IRQ_PLUG_IN] = {
.mask = RK818_IRQ_PLUG_IN_MSK,
.reg_offset = 1,
},
[RK818_IRQ_PLUG_OUT] = {
.mask = RK818_IRQ_PLUG_OUT_MSK,
.reg_offset = 1,
},
[RK818_IRQ_CHG_OK] = {
.mask = RK818_IRQ_CHG_OK_MSK,
.reg_offset = 1,
},
[RK818_IRQ_CHG_TE] = {
.mask = RK818_IRQ_CHG_TE_MSK,
.reg_offset = 1,
},
[RK818_IRQ_CHG_TS1] = {
.mask = RK818_IRQ_CHG_TS1_MSK,
.reg_offset = 1,
},
[RK818_IRQ_TS2] = {
.mask = RK818_IRQ_TS2_MSK,
.reg_offset = 1,
},
[RK818_IRQ_CHG_CVTLIM] = {
.mask = RK818_IRQ_CHG_CVTLIM_MSK,
.reg_offset = 1,
},
[RK818_IRQ_DISCHG_ILIM] = {
.mask = RK818_IRQ_DISCHG_ILIM_MSK,
.reg_offset = 1,
},
};
static const struct regmap_irq rk817_irqs[RK817_IRQ_END] = {
REGMAP_IRQ_REG_LINE(0, 8),
REGMAP_IRQ_REG_LINE(1, 8),
REGMAP_IRQ_REG_LINE(2, 8),
REGMAP_IRQ_REG_LINE(3, 8),
REGMAP_IRQ_REG_LINE(4, 8),
REGMAP_IRQ_REG_LINE(5, 8),
REGMAP_IRQ_REG_LINE(6, 8),
REGMAP_IRQ_REG_LINE(7, 8),
REGMAP_IRQ_REG_LINE(8, 8),
REGMAP_IRQ_REG_LINE(9, 8),
REGMAP_IRQ_REG_LINE(10, 8),
REGMAP_IRQ_REG_LINE(11, 8),
REGMAP_IRQ_REG_LINE(12, 8),
REGMAP_IRQ_REG_LINE(13, 8),
REGMAP_IRQ_REG_LINE(14, 8),
REGMAP_IRQ_REG_LINE(15, 8),
REGMAP_IRQ_REG_LINE(16, 8),
REGMAP_IRQ_REG_LINE(17, 8),
REGMAP_IRQ_REG_LINE(18, 8),
REGMAP_IRQ_REG_LINE(19, 8),
REGMAP_IRQ_REG_LINE(20, 8),
REGMAP_IRQ_REG_LINE(21, 8),
REGMAP_IRQ_REG_LINE(22, 8),
REGMAP_IRQ_REG_LINE(23, 8)
};
static struct regmap_irq_chip rk805_irq_chip = {
.name = "rk805",
.irqs = rk805_irqs,
.num_irqs = ARRAY_SIZE(rk805_irqs),
.num_regs = 1,
.status_base = RK805_INT_STS_REG,
.mask_base = RK805_INT_STS_MSK_REG,
.ack_base = RK805_INT_STS_REG,
.init_ack_masked = true,
};
static const struct regmap_irq_chip rk808_irq_chip = {
.name = "rk808",
.irqs = rk808_irqs,
.num_irqs = ARRAY_SIZE(rk808_irqs),
.num_regs = 2,
.irq_reg_stride = 2,
.status_base = RK808_INT_STS_REG1,
.mask_base = RK808_INT_STS_MSK_REG1,
.ack_base = RK808_INT_STS_REG1,
.init_ack_masked = true,
};
static const struct regmap_irq rk816_battery_irqs[] = {
/* INT_STS */
[RK816_IRQ_PLUG_IN] = {
.mask = RK816_IRQ_PLUG_IN_MSK,
.reg_offset = 0,
},
[RK816_IRQ_PLUG_OUT] = {
.mask = RK816_IRQ_PLUG_OUT_MSK,
.reg_offset = 0,
},
[RK816_IRQ_CHG_OK] = {
.mask = RK816_IRQ_CHG_OK_MSK,
.reg_offset = 0,
},
[RK816_IRQ_CHG_TE] = {
.mask = RK816_IRQ_CHG_TE_MSK,
.reg_offset = 0,
},
[RK816_IRQ_CHG_TS] = {
.mask = RK816_IRQ_CHG_TS_MSK,
.reg_offset = 0,
},
[RK816_IRQ_CHG_CVTLIM] = {
.mask = RK816_IRQ_CHG_CVTLIM_MSK,
.reg_offset = 0,
},
[RK816_IRQ_DISCHG_ILIM] = {
.mask = RK816_IRQ_DISCHG_ILIM_MSK,
.reg_offset = 0,
},
};
static struct regmap_irq_chip rk816_irq_chip = {
.name = "rk816",
.irqs = rk816_irqs,
.num_irqs = ARRAY_SIZE(rk816_irqs),
.num_regs = 2,
.irq_reg_stride = 3,
.status_base = RK816_INT_STS_REG1,
.mask_base = RK816_INT_STS_MSK_REG1,
.ack_base = RK816_INT_STS_REG1,
.init_ack_masked = true,
};
static struct regmap_irq_chip rk816_battery_irq_chip = {
.name = "rk816_battery",
.irqs = rk816_battery_irqs,
.num_irqs = ARRAY_SIZE(rk816_battery_irqs),
.num_regs = 1,
.status_base = RK816_INT_STS_REG3,
.mask_base = RK816_INT_STS_MSK_REG3,
.ack_base = RK816_INT_STS_REG3,
.init_ack_masked = true,
};
static struct regmap_irq_chip rk817_irq_chip = {
.name = "rk817",
.irqs = rk817_irqs,
.num_irqs = ARRAY_SIZE(rk817_irqs),
.num_regs = 3,
.irq_reg_stride = 2,
.status_base = RK817_INT_STS_REG0,
.mask_base = RK817_INT_STS_MSK_REG0,
.ack_base = RK817_INT_STS_REG0,
.init_ack_masked = true,
};
static const struct regmap_irq_chip rk818_irq_chip = {
.name = "rk818",
.irqs = rk818_irqs,
.num_irqs = ARRAY_SIZE(rk818_irqs),
.num_regs = 2,
.irq_reg_stride = 2,
.status_base = RK818_INT_STS_REG1,
.mask_base = RK818_INT_STS_MSK_REG1,
.ack_base = RK818_INT_STS_REG1,
.init_ack_masked = true,
};
static struct i2c_client *rk808_i2c_client;
static struct rk808_reg_data *suspend_reg, *resume_reg;
static int suspend_reg_num, resume_reg_num;
static void rk805_device_shutdown_prepare(void)
{
int ret;
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
if (!rk808)
return;
ret = regmap_update_bits(rk808->regmap,
RK805_GPIO_IO_POL_REG,
SLP_SD_MSK, SHUTDOWN_FUN);
if (ret)
dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
}
static void rk817_shutdown_prepare(void)
{
int ret;
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
/* close rtc int when power off */
regmap_update_bits(rk808->regmap,
RK817_INT_STS_MSK_REG0,
(0x3 << 5), (0x3 << 5));
regmap_update_bits(rk808->regmap,
RK817_RTC_INT_REG,
(0x3 << 2), (0x0 << 2));
if (rk808->pins && rk808->pins->p && rk808->pins->power_off) {
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_NULL_FUN);
if (ret)
pr_err("shutdown: config SLPPIN_NULL_FUN error!\n");
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPOL_MSK,
RK817_SLPPOL_H);
if (ret)
pr_err("shutdown: config RK817_SLPPOL_H error!\n");
ret = pinctrl_select_state(rk808->pins->p,
rk808->pins->power_off);
if (ret)
pr_info("%s:failed to activate pwroff state\n",
__func__);
}
/* pmic sleep shutdown function */
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK, SLPPIN_DN_FUN);
if (ret)
dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
/* pmic need the SCL clock to synchronize register */
mdelay(2);
}
static void rk8xx_device_shutdown(void)
{
int ret;
unsigned int reg, bit;
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
switch (rk808->variant) {
case RK805_ID:
reg = RK805_DEV_CTRL_REG;
bit = DEV_OFF;
break;
case RK808_ID:
reg = RK808_DEVCTRL_REG,
bit = DEV_OFF_RST;
break;
case RK816_ID:
reg = RK816_DEV_CTRL_REG;
bit = DEV_OFF;
break;
case RK818_ID:
reg = RK818_DEVCTRL_REG;
bit = DEV_OFF;
break;
default:
return;
}
ret = regmap_update_bits(rk808->regmap, reg, bit, bit);
if (ret)
dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
}
/* Called in syscore shutdown */
static void (*pm_shutdown)(void);
static void rk8xx_syscore_shutdown(void)
{
int ret;
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
if (!rk808) {
dev_warn(&rk808_i2c_client->dev,
"have no rk808, so do nothing here\n");
return;
}
/* close rtc int when power off */
regmap_update_bits(rk808->regmap,
RK808_INT_STS_MSK_REG1,
(0x3 << 5), (0x3 << 5));
regmap_update_bits(rk808->regmap,
RK808_RTC_INT_REG,
(0x3 << 2), (0x0 << 2));
/*
* For PMIC that power off supplies by write register via i2c bus,
* it's better to do power off at syscore shutdown here.
*
* Because when run to kernel's "pm_power_off" call, i2c may has
* been stopped or PMIC may not be able to get i2c transfer while
* there are too many devices are competiting.
*/
if (system_state == SYSTEM_POWER_OFF) {
if (rk808->variant == RK809_ID || rk808->variant == RK817_ID) {
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_DN_FUN);
if (ret) {
dev_warn(&rk808_i2c_client->dev,
"Cannot switch to power down function\n");
}
}
if (pm_shutdown) {
dev_info(&rk808_i2c_client->dev, "System power off\n");
pm_shutdown();
mdelay(10);
dev_info(&rk808_i2c_client->dev,
"Power off failed !\n");
while (1)
;
}
}
}
static struct syscore_ops rk808_syscore_ops = {
.shutdown = rk8xx_syscore_shutdown,
};
/*
* RK8xx PMICs would do real power off in syscore shutdown, if "pm_power_off"
* is not assigned(e.g. PSCI is not enabled), we have to provide a dummy
* callback for it, otherwise there comes a halt in Reboot system call:
*
* if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
* cmd = LINUX_REBOOT_CMD_HALT;
*/
static void rk808_pm_power_off_dummy(void)
{
pr_info("Dummy power off for RK8xx PMICs, should never reach here!\n");
while (1)
;
}
static ssize_t rk8xx_dbg_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int ret;
char cmd;
u32 input[2], addr, data;
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
ret = sscanf(buf, "%c ", &cmd);
if (ret != 1) {
pr_err("Unknown command\n");
goto out;
}
switch (cmd) {
case 'w':
ret = sscanf(buf, "%c %x %x ", &cmd, &input[0], &input[1]);
if (ret != 3) {
pr_err("error! cmd format: echo w [addr] [value]\n");
goto out;
};
addr = input[0] & 0xff;
data = input[1] & 0xff;
pr_info("cmd : %c %x %x\n\n", cmd, input[0], input[1]);
regmap_write(rk808->regmap, addr, data);
regmap_read(rk808->regmap, addr, &data);
pr_info("new: %x %x\n", addr, data);
break;
case 'r':
ret = sscanf(buf, "%c %x ", &cmd, &input[0]);
if (ret != 2) {
pr_err("error! cmd format: echo r [addr]\n");
goto out;
};
pr_info("cmd : %c %x\n\n", cmd, input[0]);
addr = input[0] & 0xff;
regmap_read(rk808->regmap, addr, &data);
pr_info("%x %x\n", input[0], data);
break;
default:
pr_err("Unknown command\n");
break;
}
out:
return count;
}
static int rk817_pinctrl_init(struct device *dev, struct rk808 *rk808)
{
int ret;
struct platform_device *pinctrl_dev;
struct pinctrl_state *default_st;
pinctrl_dev = platform_device_alloc("rk805-pinctrl", -1);
if (!pinctrl_dev) {
dev_err(dev, "Alloc pinctrl dev failed!\n");
return -ENOMEM;
}
pinctrl_dev->dev.parent = dev;
ret = platform_device_add(pinctrl_dev);
if (ret) {
platform_device_put(pinctrl_dev);
dev_err(dev, "Add rk805-pinctrl dev failed!\n");
return ret;
}
if (dev->pins && !IS_ERR(dev->pins->p)) {
dev_info(dev, "had get a pinctrl!\n");
return 0;
}
rk808->pins = devm_kzalloc(dev, sizeof(struct rk808_pin_info),
GFP_KERNEL);
if (!rk808->pins)
return -ENOMEM;
rk808->pins->p = devm_pinctrl_get(dev);
if (IS_ERR(rk808->pins->p)) {
rk808->pins->p = NULL;
dev_err(dev, "no pinctrl handle\n");
return 0;
}
default_st = pinctrl_lookup_state(rk808->pins->p,
PINCTRL_STATE_DEFAULT);
if (IS_ERR(default_st)) {
dev_dbg(dev, "no default pinctrl state\n");
return -EINVAL;
}
ret = pinctrl_select_state(rk808->pins->p, default_st);
if (ret) {
dev_dbg(dev, "failed to activate default pinctrl state\n");
return -EINVAL;
}
rk808->pins->power_off = pinctrl_lookup_state(rk808->pins->p,
"pmic-power-off");
if (IS_ERR(rk808->pins->power_off)) {
rk808->pins->power_off = NULL;
dev_dbg(dev, "no power-off pinctrl state\n");
}
rk808->pins->sleep = pinctrl_lookup_state(rk808->pins->p,
"pmic-sleep");
if (IS_ERR(rk808->pins->sleep)) {
rk808->pins->sleep = NULL;
dev_dbg(dev, "no sleep-setting state\n");
}
rk808->pins->reset = pinctrl_lookup_state(rk808->pins->p,
"pmic-reset");
if (IS_ERR(rk808->pins->reset)) {
rk808->pins->reset = NULL;
dev_dbg(dev, "no reset-setting pinctrl state\n");
return 0;
}
ret = pinctrl_select_state(rk808->pins->p, rk808->pins->reset);
if (ret)
dev_dbg(dev, "failed to activate reset-setting pinctrl state\n");
return 0;
}
struct rk817_reboot_data_t {
struct rk808 *rk808;
struct notifier_block reboot_notifier;
};
static struct rk817_reboot_data_t rk817_reboot_data;
static int rk817_reboot_notifier_handler(struct notifier_block *nb,
unsigned long action, void *cmd)
{
struct rk817_reboot_data_t *data;
struct device *dev;
int value, power_en_active0, power_en_active1;
int ret, i;
static const char * const pmic_rst_reg_only_cmd[] = {
"loader", "bootloader", "fastboot", "recovery",
"ums", "panic", "watchdog", "charge",
};
data = container_of(nb, struct rk817_reboot_data_t, reboot_notifier);
dev = &data->rk808->i2c->dev;
regmap_read(data->rk808->regmap, RK817_POWER_EN_SAVE0,
&power_en_active0);
if (power_en_active0 != 0) {
regmap_read(data->rk808->regmap, RK817_POWER_EN_SAVE1,
&power_en_active1);
value = power_en_active0 & 0x0f;
regmap_write(data->rk808->regmap,
RK817_POWER_EN_REG(0),
value | 0xf0);
value = (power_en_active0 & 0xf0) >> 4;
regmap_write(data->rk808->regmap,
RK817_POWER_EN_REG(1),
value | 0xf0);
value = power_en_active1 & 0x0f;
regmap_write(data->rk808->regmap,
RK817_POWER_EN_REG(2),
value | 0xf0);
value = (power_en_active1 & 0xf0) >> 4;
regmap_write(data->rk808->regmap,
RK817_POWER_EN_REG(3),
value | 0xf0);
} else {
dev_info(dev, "reboot: not restore POWER_EN\n");
}
if (action != SYS_RESTART || !cmd)
return NOTIFY_OK;
/*
* When system restart, there are two rst actions of PMIC sleep if
* board hardware support:
*
* 0b'00: reset the PMIC itself completely.
* 0b'01: reset the 'RST' related register only.
*
* In the case of 0b'00, PMIC reset itself which triggers SoC NPOR-reset
* at the same time, so the command: reboot load/bootload/recovery, etc
* is not effect any more.
*
* Here we check if this reboot cmd is what we expect for 0b'01.
*/
for (i = 0; i < ARRAY_SIZE(pmic_rst_reg_only_cmd); i++) {
if (!strcmp(cmd, pmic_rst_reg_only_cmd[i])) {
ret = regmap_update_bits(data->rk808->regmap,
RK817_SYS_CFG(3),
RK817_RST_FUNC_MSK,
RK817_RST_FUNC_REG);
if (ret)
dev_err(dev, "reboot: force RK817_RST_FUNC_REG error!\n");
else
dev_info(dev, "reboot: force RK817_RST_FUNC_REG ok!\n");
break;
}
}
return NOTIFY_OK;
}
static void rk817_of_property_prepare(struct rk808 *rk808, struct device *dev)
{
u32 inner;
int ret, func, msk, val;
struct device_node *np = dev->of_node;
ret = of_property_read_u32_index(np, "fb-inner-reg-idxs", 0, &inner);
if (!ret && inner == RK817_ID_DCDC3)
regmap_update_bits(rk808->regmap, RK817_POWER_CONFIG,
RK817_BUCK3_FB_RES_MSK,
RK817_BUCK3_FB_RES_INTER);
else
regmap_update_bits(rk808->regmap, RK817_POWER_CONFIG,
RK817_BUCK3_FB_RES_MSK,
RK817_BUCK3_FB_RES_EXT);
dev_info(dev, "support dcdc3 fb mode:%d, %d\n", ret, inner);
ret = of_property_read_u32(np, "pmic-reset-func", &func);
msk = RK817_SLPPIN_FUNC_MSK | RK817_RST_FUNC_MSK;
val = SLPPIN_NULL_FUN;
if (!ret && func < RK817_RST_FUNC_CNT) {
val |= RK817_RST_FUNC_MSK &
(func << RK817_RST_FUNC_SFT);
} else {
val |= RK817_RST_FUNC_REG;
}
regmap_update_bits(rk808->regmap, RK817_SYS_CFG(3), msk, val);
dev_info(dev, "support pmic reset mode:%d,%d\n", ret, func);
rk817_reboot_data.rk808 = rk808;
rk817_reboot_data.reboot_notifier.notifier_call =
rk817_reboot_notifier_handler;
ret = register_reboot_notifier(&rk817_reboot_data.reboot_notifier);
if (ret)
dev_err(dev, "failed to register reboot nb\n");
}
static struct kobject *rk8xx_kobj;
static struct device_attribute rk8xx_attrs =
__ATTR(rk8xx_dbg, 0200, NULL, rk8xx_dbg_store);
static const struct of_device_id rk808_of_match[] = {
{ .compatible = "rockchip,rk805" },
{ .compatible = "rockchip,rk808" },
{ .compatible = "rockchip,rk809" },
{ .compatible = "rockchip,rk816" },
{ .compatible = "rockchip,rk817" },
{ .compatible = "rockchip,rk818" },
{ },
};
MODULE_DEVICE_TABLE(of, rk808_of_match);
static int rk808_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device_node *np = client->dev.of_node;
struct rk808 *rk808;
const struct rk808_reg_data *pre_init_reg;
const struct regmap_irq_chip *battery_irq_chip = NULL;
const struct mfd_cell *cells;
unsigned char pmic_id_msb, pmic_id_lsb;
u8 on_source = 0, off_source = 0;
unsigned int on, off;
int pm_off = 0, msb, lsb;
int nr_pre_init_regs;
int nr_cells;
int ret;
int i;
void (*of_property_prepare_fn)(struct rk808 *rk808,
struct device *dev) = NULL;
int (*pinctrl_init)(struct device *dev, struct rk808 *rk808) = NULL;
void (*device_shutdown_fn)(void) = NULL;
rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
if (!rk808)
return -ENOMEM;
if (of_device_is_compatible(np, "rockchip,rk817") ||
of_device_is_compatible(np, "rockchip,rk809")) {
pmic_id_msb = RK817_ID_MSB;
pmic_id_lsb = RK817_ID_LSB;
} else {
pmic_id_msb = RK808_ID_MSB;
pmic_id_lsb = RK808_ID_LSB;
}
/* Read chip variant */
msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
if (msb < 0) {
dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
RK808_ID_MSB);
return msb;
}
lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
if (lsb < 0) {
dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
RK808_ID_LSB);
return lsb;
}
rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
switch (rk808->variant) {
case RK805_ID:
rk808->regmap_cfg = &rk805_regmap_config;
rk808->regmap_irq_chip = &rk805_irq_chip;
pre_init_reg = rk805_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
cells = rk805s;
nr_cells = ARRAY_SIZE(rk805s);
on_source = RK805_ON_SOURCE_REG;
off_source = RK805_OFF_SOURCE_REG;
suspend_reg = rk805_suspend_reg;
suspend_reg_num = ARRAY_SIZE(rk805_suspend_reg);
resume_reg = rk805_resume_reg;
resume_reg_num = ARRAY_SIZE(rk805_resume_reg);
device_shutdown_fn = rk8xx_device_shutdown;
rk808->pm_pwroff_prep_fn = rk805_device_shutdown_prepare;
break;
case RK808_ID:
rk808->regmap_cfg = &rk808_regmap_config;
rk808->regmap_irq_chip = &rk808_irq_chip;
pre_init_reg = rk808_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
cells = rk808s;
nr_cells = ARRAY_SIZE(rk808s);
device_shutdown_fn = rk8xx_device_shutdown;
break;
case RK816_ID:
rk808->regmap_cfg = &rk816_regmap_config;
rk808->regmap_irq_chip = &rk816_irq_chip;
battery_irq_chip = &rk816_battery_irq_chip;
pre_init_reg = rk816_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk816_pre_init_reg);
cells = rk816s;
nr_cells = ARRAY_SIZE(rk816s);
on_source = RK816_ON_SOURCE_REG;
off_source = RK816_OFF_SOURCE_REG;
suspend_reg = rk816_suspend_reg;
suspend_reg_num = ARRAY_SIZE(rk816_suspend_reg);
resume_reg = rk816_resume_reg;
resume_reg_num = ARRAY_SIZE(rk816_resume_reg);
device_shutdown_fn = rk8xx_device_shutdown;
break;
case RK818_ID:
rk808->regmap_cfg = &rk818_regmap_config;
rk808->regmap_irq_chip = &rk818_irq_chip;
pre_init_reg = rk818_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
cells = rk818s;
nr_cells = ARRAY_SIZE(rk818s);
on_source = RK818_ON_SOURCE_REG;
off_source = RK818_OFF_SOURCE_REG;
suspend_reg = rk818_suspend_reg;
suspend_reg_num = ARRAY_SIZE(rk818_suspend_reg);
resume_reg = rk818_resume_reg;
resume_reg_num = ARRAY_SIZE(rk818_resume_reg);
device_shutdown_fn = rk8xx_device_shutdown;
break;
case RK809_ID:
case RK817_ID:
rk808->regmap_cfg = &rk817_regmap_config;
rk808->regmap_irq_chip = &rk817_irq_chip;
pre_init_reg = rk817_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg);
cells = rk817s;
nr_cells = ARRAY_SIZE(rk817s);
on_source = RK817_ON_SOURCE_REG;
off_source = RK817_OFF_SOURCE_REG;
rk808->pm_pwroff_prep_fn = rk817_shutdown_prepare;
of_property_prepare_fn = rk817_of_property_prepare;
pinctrl_init = rk817_pinctrl_init;
break;
default:
dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
rk808->variant);
return -EINVAL;
}
rk808->i2c = client;
rk808_i2c_client = client;
i2c_set_clientdata(client, rk808);
rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
if (IS_ERR(rk808->regmap)) {
dev_err(&client->dev, "regmap initialization failed\n");
return PTR_ERR(rk808->regmap);
}
if (on_source && off_source) {
ret = regmap_read(rk808->regmap, on_source, &on);
if (ret) {
dev_err(&client->dev, "read 0x%x failed\n", on_source);
return ret;
}
ret = regmap_read(rk808->regmap, off_source, &off);
if (ret) {
dev_err(&client->dev, "read 0x%x failed\n", off_source);
return ret;
}
dev_info(&client->dev, "source: on=0x%02x, off=0x%02x\n",
on, off);
}
if (!client->irq) {
dev_err(&client->dev, "No interrupt support, no core IRQ\n");
return -EINVAL;
}
if (of_property_prepare_fn)
of_property_prepare_fn(rk808, &client->dev);
for (i = 0; i < nr_pre_init_regs; i++) {
ret = regmap_update_bits(rk808->regmap,
pre_init_reg[i].addr,
pre_init_reg[i].mask,
pre_init_reg[i].value);
if (ret) {
dev_err(&client->dev,
"0x%x write err\n",
pre_init_reg[i].addr);
return ret;
}
}
if (pinctrl_init) {
ret = pinctrl_init(&client->dev, rk808);
if (ret)
return ret;
}
ret = regmap_add_irq_chip(rk808->regmap, client->irq,
IRQF_ONESHOT, -1,
rk808->regmap_irq_chip, &rk808->irq_data);
if (ret) {
dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
return ret;
}
if (battery_irq_chip) {
ret = regmap_add_irq_chip(rk808->regmap, client->irq,
IRQF_ONESHOT | IRQF_SHARED, -1,
battery_irq_chip,
&rk808->battery_irq_data);
if (ret) {
dev_err(&client->dev,
"Failed to add batterry irq_chip %d\n", ret);
regmap_del_irq_chip(client->irq, rk808->irq_data);
return ret;
}
}
ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
cells, nr_cells, NULL, 0,
regmap_irq_get_domain(rk808->irq_data));
if (ret) {
dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
goto err_irq;
}
pm_off = of_property_read_bool(np, "rockchip,system-power-controller");
if (pm_off) {
if (!pm_power_off_prepare)
pm_power_off_prepare = rk808->pm_pwroff_prep_fn;
if (device_shutdown_fn) {
register_syscore_ops(&rk808_syscore_ops);
/* power off system in the syscore shutdown ! */
pm_shutdown = device_shutdown_fn;
}
}
rk8xx_kobj = kobject_create_and_add("rk8xx", NULL);
if (rk8xx_kobj) {
ret = sysfs_create_file(rk8xx_kobj, &rk8xx_attrs.attr);
if (ret)
dev_err(&client->dev, "create rk8xx sysfs error\n");
}
if (!pm_power_off)
pm_power_off = rk808_pm_power_off_dummy;
return 0;
err_irq:
regmap_del_irq_chip(client->irq, rk808->irq_data);
if (battery_irq_chip)
regmap_del_irq_chip(client->irq, rk808->battery_irq_data);
return ret;
}
static int rk808_remove(struct i2c_client *client)
{
struct rk808 *rk808 = i2c_get_clientdata(client);
regmap_del_irq_chip(client->irq, rk808->irq_data);
mfd_remove_devices(&client->dev);
/**
* pm_power_off may points to a function from another module.
* Check if the pointer is set by us and only then overwrite it.
*/
if (pm_power_off == rk808_pm_power_off_dummy)
pm_power_off = NULL;
/**
* As above, check if the pointer is set by us before overwrite.
*/
if (rk808->pm_pwroff_prep_fn &&
pm_power_off_prepare == rk808->pm_pwroff_prep_fn)
pm_power_off_prepare = NULL;
if (pm_shutdown)
unregister_syscore_ops(&rk808_syscore_ops);
return 0;
}
static int __maybe_unused rk8xx_suspend(struct device *dev)
{
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
int i, ret = 0;
int value;
for (i = 0; i < suspend_reg_num; i++) {
ret = regmap_update_bits(rk808->regmap,
suspend_reg[i].addr,
suspend_reg[i].mask,
suspend_reg[i].value);
if (ret) {
dev_err(dev, "0x%x write err\n",
suspend_reg[i].addr);
return ret;
}
}
switch (rk808->variant) {
case RK805_ID:
ret = regmap_update_bits(rk808->regmap,
RK805_GPIO_IO_POL_REG,
SLP_SD_MSK,
SLEEP_FUN);
break;
case RK809_ID:
case RK817_ID:
if (rk808->pins && rk808->pins->p && rk808->pins->sleep) {
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_NULL_FUN);
if (ret) {
dev_err(dev, "suspend: config SLPPIN_NULL_FUN error!\n");
return ret;
}
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPOL_MSK,
RK817_SLPPOL_H);
if (ret) {
dev_err(dev, "suspend: config RK817_SLPPOL_H error!\n");
return ret;
}
/* pmic need the SCL clock to synchronize register */
regmap_read(rk808->regmap, RK817_SYS_STS, &value);
mdelay(2);
ret = pinctrl_select_state(rk808->pins->p, rk808->pins->sleep);
if (ret) {
dev_err(dev, "failed to act slp pinctrl state\n");
return ret;
}
}
break;
default:
break;
}
return ret;
}
static int __maybe_unused rk8xx_resume(struct device *dev)
{
struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
int i, ret = 0;
int value;
for (i = 0; i < resume_reg_num; i++) {
ret = regmap_update_bits(rk808->regmap,
resume_reg[i].addr,
resume_reg[i].mask,
resume_reg[i].value);
if (ret) {
dev_err(dev, "0x%x write err\n",
resume_reg[i].addr);
return ret;
}
}
switch (rk808->variant) {
case RK809_ID:
case RK817_ID:
if (rk808->pins && rk808->pins->p && rk808->pins->reset) {
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPIN_FUNC_MSK,
SLPPIN_NULL_FUN);
if (ret) {
dev_err(dev, "resume: config SLPPIN_NULL_FUN error!\n");
return ret;
}
ret = regmap_update_bits(rk808->regmap,
RK817_SYS_CFG(3),
RK817_SLPPOL_MSK,
RK817_SLPPOL_L);
if (ret) {
dev_err(dev, "resume: config RK817_SLPPOL_L error!\n");
return ret;
}
/* pmic need the SCL clock to synchronize register */
regmap_read(rk808->regmap, RK817_SYS_STS, &value);
mdelay(2);
ret = pinctrl_select_state(rk808->pins->p, rk808->pins->reset);
if (ret)
dev_dbg(dev, "failed to act reset pinctrl state\n");
}
break;
default:
break;
}
return ret;
}
SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume);
static struct i2c_driver rk808_i2c_driver = {
.driver = {
.name = "rk808",
.of_match_table = rk808_of_match,
.pm = &rk8xx_pm_ops,
},
.probe = rk808_probe,
.remove = rk808_remove,
};
#ifdef CONFIG_ROCKCHIP_THUNDER_BOOT
static int __init rk808_i2c_driver_init(void)
{
return i2c_add_driver(&rk808_i2c_driver);
}
subsys_initcall(rk808_i2c_driver_init);
static void __exit rk808_i2c_driver_exit(void)
{
i2c_del_driver(&rk808_i2c_driver);
}
module_exit(rk808_i2c_driver_exit);
#else
module_i2c_driver(rk808_i2c_driver);
#endif
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
MODULE_DESCRIPTION("RK808/RK818 PMIC driver");
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