summaryrefslogtreecommitdiff
path: root/drivers/mfd/rohm-bd71828.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mfd/rohm-bd71828.c')
-rw-r--r--drivers/mfd/rohm-bd71828.c143
1 files changed, 99 insertions, 44 deletions
diff --git a/drivers/mfd/rohm-bd71828.c b/drivers/mfd/rohm-bd71828.c
index 714d9fcbf07b..84a64c3b9c9f 100644
--- a/drivers/mfd/rohm-bd71828.c
+++ b/drivers/mfd/rohm-bd71828.c
@@ -15,7 +15,7 @@
#include <linux/mfd/rohm-bd71828.h>
#include <linux/mfd/rohm-generic.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/types.h>
@@ -25,28 +25,28 @@ static struct gpio_keys_button button = {
.type = EV_KEY,
};
-static struct gpio_keys_platform_data bd71828_powerkey_data = {
+static const struct gpio_keys_platform_data bd71828_powerkey_data = {
.buttons = &button,
.nbuttons = 1,
.name = "bd71828-pwrkey",
};
static const struct resource bd71815_rtc_irqs[] = {
- DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC0, "bd71815-rtc-alm-0"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC1, "bd71815-rtc-alm-1"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC2, "bd71815-rtc-alm-2"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC0, "bd70528-rtc-alm-0"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC1, "bd70528-rtc-alm-1"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC2, "bd70528-rtc-alm-2"),
};
static const struct resource bd71828_rtc_irqs[] = {
- DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd71828-rtc-alm-0"),
- DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd71828-rtc-alm-1"),
- DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC2, "bd71828-rtc-alm-2"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd70528-rtc-alm-0"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd70528-rtc-alm-1"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC2, "bd70528-rtc-alm-2"),
};
-static struct resource bd71815_power_irqs[] = {
+static const struct resource bd71815_power_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_RMV, "bd71815-dcin-rmv"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-clps-out"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-clps-in"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-dcin-clps-out"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-dcin-clps-in"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_RES, "bd71815-dcin-ovp-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_DET, "bd71815-dcin-ovp-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_RES, "bd71815-dcin-mon-res"),
@@ -56,7 +56,7 @@ static struct resource bd71815_power_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_RES, "bd71815-vsys-low-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_DET, "bd71815-vsys-low-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-res"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_DET, "bd71815-vsys-mon-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TEMP, "bd71815-chg-wdg-temp"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TIME, "bd71815-chg-wdg"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_RES, "bd71815-rechg-res"),
@@ -87,13 +87,13 @@ static struct resource bd71815_power_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_DET, "bd71815-bat-oc2-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_RES, "bd71815-bat-oc3-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_DET, "bd71815-bat-oc3-det"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES, "bd71815-bat-low-res"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET, "bd71815-bat-low-det"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-bat-hi-res"),
- DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-bat-hi-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES, "bd71815-temp-bat-low-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET, "bd71815-temp-bat-low-det"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-temp-bat-hi-res"),
+ DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-temp-bat-hi-det"),
};
-static struct mfd_cell bd71815_mfd_cells[] = {
+static const struct mfd_cell bd71815_mfd_cells[] = {
{ .name = "bd71815-pmic", },
{ .name = "bd71815-clk", },
{ .name = "bd71815-gpo", },
@@ -109,6 +109,29 @@ static struct mfd_cell bd71815_mfd_cells[] = {
},
};
+static const struct resource bd71828_power_irqs[] = {
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_CHG_TOPOFF_TO_DONE,
+ "bd71828-chg-done"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_DCIN_DET, "bd71828-pwr-dcin-in"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_DCIN_RMV, "bd71828-pwr-dcin-out"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_BAT_LOW_VOLT_RES,
+ "bd71828-vbat-normal"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_BAT_LOW_VOLT_DET, "bd71828-vbat-low"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_HI_DET, "bd71828-btemp-hi"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_HI_RES, "bd71828-btemp-cool"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_LOW_DET, "bd71828-btemp-lo"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_BAT_LOW_RES,
+ "bd71828-btemp-warm"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_VF_DET,
+ "bd71828-temp-hi"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_VF_RES,
+ "bd71828-temp-norm"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_125_DET,
+ "bd71828-temp-125-over"),
+ DEFINE_RES_IRQ_NAMED(BD71828_INT_TEMP_CHIP_OVER_125_RES,
+ "bd71828-temp-125-under"),
+};
+
static struct mfd_cell bd71828_mfd_cells[] = {
{ .name = "bd71828-pmic", },
{ .name = "bd71828-gpio", },
@@ -118,8 +141,11 @@ static struct mfd_cell bd71828_mfd_cells[] = {
* BD70528 clock gate are the register address and mask.
*/
{ .name = "bd71828-clk", },
- { .name = "bd71827-power", },
{
+ .name = "bd71828-power",
+ .resources = bd71828_power_irqs,
+ .num_resources = ARRAY_SIZE(bd71828_power_irqs),
+ }, {
.name = "bd71828-rtc",
.resources = bd71828_rtc_irqs,
.num_resources = ARRAY_SIZE(bd71828_rtc_irqs),
@@ -197,7 +223,7 @@ static const struct regmap_config bd71815_regmap = {
.val_bits = 8,
.volatile_table = &bd71815_volatile_regs,
.max_register = BD71815_MAX_REGISTER - 1,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
};
static const struct regmap_config bd71828_regmap = {
@@ -205,7 +231,7 @@ static const struct regmap_config bd71828_regmap = {
.val_bits = 8,
.volatile_table = &bd71828_volatile_regs,
.max_register = BD71828_MAX_REGISTER,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
};
/*
@@ -223,7 +249,7 @@ static unsigned int bit5_offsets[] = {3}; /* VSYS IRQ */
static unsigned int bit6_offsets[] = {1, 2}; /* DCIN IRQ */
static unsigned int bit7_offsets[] = {0}; /* BUCK IRQ */
-static struct regmap_irq_sub_irq_map bd718xx_sub_irq_offsets[] = {
+static const struct regmap_irq_sub_irq_map bd718xx_sub_irq_offsets[] = {
REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),
@@ -316,7 +342,7 @@ static const struct regmap_irq bd71815_irqs[] = {
REGMAP_IRQ_REG(BD71815_INT_RTC2, 11, BD71815_INT_RTC2_MASK),
};
-static struct regmap_irq bd71828_irqs[] = {
+static const struct regmap_irq bd71828_irqs[] = {
REGMAP_IRQ_REG(BD71828_INT_BUCK1_OCP, 0, BD71828_INT_BUCK1_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK2_OCP, 0, BD71828_INT_BUCK2_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK3_OCP, 0, BD71828_INT_BUCK3_OCP_MASK),
@@ -407,15 +433,14 @@ static struct regmap_irq bd71828_irqs[] = {
REGMAP_IRQ_REG(BD71828_INT_RTC2, 11, BD71828_INT_RTC2_MASK),
};
-static struct regmap_irq_chip bd71828_irq_chip = {
+static const struct regmap_irq_chip bd71828_irq_chip = {
.name = "bd71828_irq",
.main_status = BD71828_REG_INT_MAIN,
.irqs = &bd71828_irqs[0],
.num_irqs = ARRAY_SIZE(bd71828_irqs),
.status_base = BD71828_REG_INT_BUCK,
- .mask_base = BD71828_REG_INT_MASK_BUCK,
+ .unmask_base = BD71828_REG_INT_MASK_BUCK,
.ack_base = BD71828_REG_INT_BUCK,
- .mask_invert = true,
.init_ack_masked = true,
.num_regs = 12,
.num_main_regs = 1,
@@ -424,15 +449,14 @@ static struct regmap_irq_chip bd71828_irq_chip = {
.irq_reg_stride = 1,
};
-static struct regmap_irq_chip bd71815_irq_chip = {
+static const struct regmap_irq_chip bd71815_irq_chip = {
.name = "bd71815_irq",
.main_status = BD71815_REG_INT_STAT,
.irqs = &bd71815_irqs[0],
.num_irqs = ARRAY_SIZE(bd71815_irqs),
.status_base = BD71815_REG_INT_STAT_01,
- .mask_base = BD71815_REG_INT_EN_01,
+ .unmask_base = BD71815_REG_INT_EN_01,
.ack_base = BD71815_REG_INT_STAT_01,
- .mask_invert = true,
.init_ack_masked = true,
.num_regs = 12,
.num_main_regs = 1,
@@ -466,15 +490,36 @@ static int set_clk_mode(struct device *dev, struct regmap *regmap,
OUT32K_MODE_CMOS);
}
+static struct i2c_client *bd71828_dev;
+static void bd71828_power_off(void)
+{
+ while (true) {
+ s32 val;
+
+ /* We are not allowed to sleep, so do not use regmap involving mutexes here. */
+ val = i2c_smbus_read_byte_data(bd71828_dev, BD71828_REG_PS_CTRL_1);
+ if (val >= 0)
+ i2c_smbus_write_byte_data(bd71828_dev,
+ BD71828_REG_PS_CTRL_1,
+ BD71828_MASK_STATE_HBNT | (u8)val);
+ mdelay(500);
+ }
+}
+
+static void bd71828_remove_poweroff(void *data)
+{
+ pm_power_off = NULL;
+}
+
static int bd71828_i2c_probe(struct i2c_client *i2c)
{
struct regmap_irq_chip_data *irq_data;
int ret;
struct regmap *regmap;
const struct regmap_config *regmap_config;
- struct regmap_irq_chip *irqchip;
+ const struct regmap_irq_chip *irqchip;
unsigned int chip_type;
- struct mfd_cell *mfd;
+ const struct mfd_cell *mfd;
int cells;
int button_irq;
int clkmode_reg;
@@ -515,27 +560,24 @@ static int bd71828_i2c_probe(struct i2c_client *i2c)
}
regmap = devm_regmap_init_i2c(i2c, regmap_config);
- if (IS_ERR(regmap)) {
- dev_err(&i2c->dev, "Failed to initialize Regmap\n");
- return PTR_ERR(regmap);
- }
+ if (IS_ERR(regmap))
+ return dev_err_probe(&i2c->dev, PTR_ERR(regmap),
+ "Failed to initialize Regmap\n");
ret = devm_regmap_add_irq_chip(&i2c->dev, regmap, i2c->irq,
IRQF_ONESHOT, 0, irqchip, &irq_data);
- if (ret) {
- dev_err(&i2c->dev, "Failed to add IRQ chip\n");
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&i2c->dev, ret,
+ "Failed to add IRQ chip\n");
dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n",
irqchip->num_irqs);
if (button_irq) {
ret = regmap_irq_get_virq(irq_data, button_irq);
- if (ret < 0) {
- dev_err(&i2c->dev, "Failed to get the power-key IRQ\n");
- return ret;
- }
+ if (ret < 0)
+ return dev_err_probe(&i2c->dev, ret,
+ "Failed to get the power-key IRQ\n");
button.irq = ret;
}
@@ -547,7 +589,20 @@ static int bd71828_i2c_probe(struct i2c_client *i2c)
ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, mfd, cells,
NULL, 0, regmap_irq_get_domain(irq_data));
if (ret)
- dev_err(&i2c->dev, "Failed to create subdevices\n");
+ return dev_err_probe(&i2c->dev, ret, "Failed to create subdevices\n");
+
+ if (of_device_is_system_power_controller(i2c->dev.of_node) &&
+ chip_type == ROHM_CHIP_TYPE_BD71828) {
+ if (!pm_power_off) {
+ bd71828_dev = i2c;
+ pm_power_off = bd71828_power_off;
+ ret = devm_add_action_or_reset(&i2c->dev,
+ bd71828_remove_poweroff,
+ NULL);
+ } else {
+ dev_warn(&i2c->dev, "Poweroff callback already assigned\n");
+ }
+ }
return ret;
}
@@ -569,7 +624,7 @@ static struct i2c_driver bd71828_drv = {
.name = "rohm-bd71828",
.of_match_table = bd71828_of_match,
},
- .probe_new = &bd71828_i2c_probe,
+ .probe = bd71828_i2c_probe,
};
module_i2c_driver(bd71828_drv);
generated by cgit (git 2.34.1) at 2025-12-25 20:19:36 +0000