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path: root/drivers/mfd/sec-core.c
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Diffstat (limited to 'drivers/mfd/sec-core.c')
-rw-r--r--drivers/mfd/sec-core.c88
1 files changed, 18 insertions, 70 deletions
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 1cf27521fff4..be06d0abbf19 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -25,7 +25,6 @@
#include <linux/mfd/core.h>
#include <linux/mfd/samsung/core.h>
#include <linux/mfd/samsung/irq.h>
-#include <linux/mfd/samsung/rtc.h>
#include <linux/mfd/samsung/s2mpa01.h>
#include <linux/mfd/samsung/s2mps11.h>
#include <linux/mfd/samsung/s2mps14.h>
@@ -91,7 +90,7 @@ static const struct mfd_cell s2mpa01_devs[] = {
};
#ifdef CONFIG_OF
-static struct of_device_id sec_dt_match[] = {
+static const struct of_device_id sec_dt_match[] = {
{ .compatible = "samsung,s5m8767-pmic",
.data = (void *)S5M8767X,
}, {
@@ -196,20 +195,6 @@ static const struct regmap_config s5m8767_regmap_config = {
.cache_type = REGCACHE_FLAT,
};
-static const struct regmap_config s5m_rtc_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
-
- .max_register = SEC_RTC_REG_MAX,
-};
-
-static const struct regmap_config s2mps14_rtc_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
-
- .max_register = S2MPS_RTC_REG_MAX,
-};
-
#ifdef CONFIG_OF
/*
* Only the common platform data elements for s5m8767 are parsed here from the
@@ -264,8 +249,9 @@ static int sec_pmic_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct sec_platform_data *pdata = dev_get_platdata(&i2c->dev);
- const struct regmap_config *regmap, *regmap_rtc;
+ const struct regmap_config *regmap;
struct sec_pmic_dev *sec_pmic;
+ unsigned long device_type;
int ret;
sec_pmic = devm_kzalloc(&i2c->dev, sizeof(struct sec_pmic_dev),
@@ -277,7 +263,7 @@ static int sec_pmic_probe(struct i2c_client *i2c,
sec_pmic->dev = &i2c->dev;
sec_pmic->i2c = i2c;
sec_pmic->irq = i2c->irq;
- sec_pmic->type = sec_i2c_get_driver_data(i2c, id);
+ device_type = sec_i2c_get_driver_data(i2c, id);
if (sec_pmic->dev->of_node) {
pdata = sec_pmic_i2c_parse_dt_pdata(sec_pmic->dev);
@@ -285,7 +271,7 @@ static int sec_pmic_probe(struct i2c_client *i2c,
ret = PTR_ERR(pdata);
return ret;
}
- pdata->device_type = sec_pmic->type;
+ pdata->device_type = device_type;
}
if (pdata) {
sec_pmic->device_type = pdata->device_type;
@@ -298,39 +284,21 @@ static int sec_pmic_probe(struct i2c_client *i2c,
switch (sec_pmic->device_type) {
case S2MPA01:
regmap = &s2mpa01_regmap_config;
- /*
- * The rtc-s5m driver does not support S2MPA01 and there
- * is no mfd_cell for S2MPA01 RTC device.
- * However we must pass something to devm_regmap_init_i2c()
- * so use S5M-like regmap config even though it wouldn't work.
- */
- regmap_rtc = &s5m_rtc_regmap_config;
break;
case S2MPS11X:
regmap = &s2mps11_regmap_config;
- /*
- * The rtc-s5m driver does not support S2MPS11 and there
- * is no mfd_cell for S2MPS11 RTC device.
- * However we must pass something to devm_regmap_init_i2c()
- * so use S5M-like regmap config even though it wouldn't work.
- */
- regmap_rtc = &s5m_rtc_regmap_config;
break;
case S2MPS14X:
regmap = &s2mps14_regmap_config;
- regmap_rtc = &s2mps14_rtc_regmap_config;
break;
case S5M8763X:
regmap = &s5m8763_regmap_config;
- regmap_rtc = &s5m_rtc_regmap_config;
break;
case S5M8767X:
regmap = &s5m8767_regmap_config;
- regmap_rtc = &s5m_rtc_regmap_config;
break;
default:
regmap = &sec_regmap_config;
- regmap_rtc = &s5m_rtc_regmap_config;
break;
}
@@ -342,21 +310,6 @@ static int sec_pmic_probe(struct i2c_client *i2c,
return ret;
}
- sec_pmic->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
- if (!sec_pmic->rtc) {
- dev_err(&i2c->dev, "Failed to allocate I2C for RTC\n");
- return -ENODEV;
- }
- i2c_set_clientdata(sec_pmic->rtc, sec_pmic);
-
- sec_pmic->regmap_rtc = devm_regmap_init_i2c(sec_pmic->rtc, regmap_rtc);
- if (IS_ERR(sec_pmic->regmap_rtc)) {
- ret = PTR_ERR(sec_pmic->regmap_rtc);
- dev_err(&i2c->dev, "Failed to allocate RTC register map: %d\n",
- ret);
- goto err_regmap_rtc;
- }
-
if (pdata && pdata->cfg_pmic_irq)
pdata->cfg_pmic_irq();
@@ -403,8 +356,6 @@ static int sec_pmic_probe(struct i2c_client *i2c,
err_mfd:
sec_irq_exit(sec_pmic);
-err_regmap_rtc:
- i2c_unregister_device(sec_pmic->rtc);
return ret;
}
@@ -414,7 +365,6 @@ static int sec_pmic_remove(struct i2c_client *i2c)
mfd_remove_devices(sec_pmic->dev);
sec_irq_exit(sec_pmic);
- i2c_unregister_device(sec_pmic->rtc);
return 0;
}
@@ -424,19 +374,18 @@ static int sec_pmic_suspend(struct device *dev)
struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
- if (device_may_wakeup(dev)) {
+ if (device_may_wakeup(dev))
enable_irq_wake(sec_pmic->irq);
- /*
- * PMIC IRQ must be disabled during suspend for RTC alarm
- * to work properly.
- * When device is woken up from suspend by RTC Alarm, an
- * interrupt occurs before resuming I2C bus controller.
- * The interrupt is handled by regmap_irq_thread which tries
- * to read RTC registers. This read fails (I2C is still
- * suspended) and RTC Alarm interrupt is disabled.
- */
- disable_irq(sec_pmic->irq);
- }
+ /*
+ * PMIC IRQ must be disabled during suspend for RTC alarm
+ * to work properly.
+ * When device is woken up from suspend, an
+ * interrupt occurs before resuming I2C bus controller.
+ * The interrupt is handled by regmap_irq_thread which tries
+ * to read RTC registers. This read fails (I2C is still
+ * suspended) and RTC Alarm interrupt is disabled.
+ */
+ disable_irq(sec_pmic->irq);
return 0;
}
@@ -446,10 +395,9 @@ static int sec_pmic_resume(struct device *dev)
struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
- if (device_may_wakeup(dev)) {
+ if (device_may_wakeup(dev))
disable_irq_wake(sec_pmic->irq);
- enable_irq(sec_pmic->irq);
- }
+ enable_irq(sec_pmic->irq);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 11:04:40 +0000