#include <linux/delay.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
+#include <linux/err.h>
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/irq.h>
#include <linux/mfd/wm831x/auxadc.h>
#include <linux/mfd/wm831x/otp.h>
+#include <linux/mfd/wm831x/pmu.h>
#include <linux/mfd/wm831x/regulator.h>
/* Current settings - values are 2*2^(reg_val/4) microamps. These are
}
EXPORT_SYMBOL_GPL(wm831x_reg_unlock);
-static int wm831x_read(struct wm831x *wm831x, unsigned short reg,
- int bytes, void *dest)
+static bool wm831x_reg_readable(struct device *dev, unsigned int reg)
{
- int ret, i;
- u16 *buf = dest;
-
- BUG_ON(bytes % 2);
- BUG_ON(bytes <= 0);
+ switch (reg) {
+ case WM831X_RESET_ID:
+ case WM831X_REVISION:
+ case WM831X_PARENT_ID:
+ case WM831X_SYSVDD_CONTROL:
+ case WM831X_THERMAL_MONITORING:
+ case WM831X_POWER_STATE:
+ case WM831X_WATCHDOG:
+ case WM831X_ON_PIN_CONTROL:
+ case WM831X_RESET_CONTROL:
+ case WM831X_CONTROL_INTERFACE:
+ case WM831X_SECURITY_KEY:
+ case WM831X_SOFTWARE_SCRATCH:
+ case WM831X_OTP_CONTROL:
+ case WM831X_GPIO_LEVEL:
+ case WM831X_SYSTEM_STATUS:
+ case WM831X_ON_SOURCE:
+ case WM831X_OFF_SOURCE:
+ case WM831X_SYSTEM_INTERRUPTS:
+ case WM831X_INTERRUPT_STATUS_1:
+ case WM831X_INTERRUPT_STATUS_2:
+ case WM831X_INTERRUPT_STATUS_3:
+ case WM831X_INTERRUPT_STATUS_4:
+ case WM831X_INTERRUPT_STATUS_5:
+ case WM831X_IRQ_CONFIG:
+ case WM831X_SYSTEM_INTERRUPTS_MASK:
+ case WM831X_INTERRUPT_STATUS_1_MASK:
+ case WM831X_INTERRUPT_STATUS_2_MASK:
+ case WM831X_INTERRUPT_STATUS_3_MASK:
+ case WM831X_INTERRUPT_STATUS_4_MASK:
+ case WM831X_INTERRUPT_STATUS_5_MASK:
+ case WM831X_RTC_WRITE_COUNTER:
+ case WM831X_RTC_TIME_1:
+ case WM831X_RTC_TIME_2:
+ case WM831X_RTC_ALARM_1:
+ case WM831X_RTC_ALARM_2:
+ case WM831X_RTC_CONTROL:
+ case WM831X_RTC_TRIM:
+ case WM831X_TOUCH_CONTROL_1:
+ case WM831X_TOUCH_CONTROL_2:
+ case WM831X_TOUCH_DATA_X:
+ case WM831X_TOUCH_DATA_Y:
+ case WM831X_TOUCH_DATA_Z:
+ case WM831X_AUXADC_DATA:
+ case WM831X_AUXADC_CONTROL:
+ case WM831X_AUXADC_SOURCE:
+ case WM831X_COMPARATOR_CONTROL:
+ case WM831X_COMPARATOR_1:
+ case WM831X_COMPARATOR_2:
+ case WM831X_COMPARATOR_3:
+ case WM831X_COMPARATOR_4:
+ case WM831X_GPIO1_CONTROL:
+ case WM831X_GPIO2_CONTROL:
+ case WM831X_GPIO3_CONTROL:
+ case WM831X_GPIO4_CONTROL:
+ case WM831X_GPIO5_CONTROL:
+ case WM831X_GPIO6_CONTROL:
+ case WM831X_GPIO7_CONTROL:
+ case WM831X_GPIO8_CONTROL:
+ case WM831X_GPIO9_CONTROL:
+ case WM831X_GPIO10_CONTROL:
+ case WM831X_GPIO11_CONTROL:
+ case WM831X_GPIO12_CONTROL:
+ case WM831X_GPIO13_CONTROL:
+ case WM831X_GPIO14_CONTROL:
+ case WM831X_GPIO15_CONTROL:
+ case WM831X_GPIO16_CONTROL:
+ case WM831X_CHARGER_CONTROL_1:
+ case WM831X_CHARGER_CONTROL_2:
+ case WM831X_CHARGER_STATUS:
+ case WM831X_BACKUP_CHARGER_CONTROL:
+ case WM831X_STATUS_LED_1:
+ case WM831X_STATUS_LED_2:
+ case WM831X_CURRENT_SINK_1:
+ case WM831X_CURRENT_SINK_2:
+ case WM831X_DCDC_ENABLE:
+ case WM831X_LDO_ENABLE:
+ case WM831X_DCDC_STATUS:
+ case WM831X_LDO_STATUS:
+ case WM831X_DCDC_UV_STATUS:
+ case WM831X_LDO_UV_STATUS:
+ case WM831X_DC1_CONTROL_1:
+ case WM831X_DC1_CONTROL_2:
+ case WM831X_DC1_ON_CONFIG:
+ case WM831X_DC1_SLEEP_CONTROL:
+ case WM831X_DC1_DVS_CONTROL:
+ case WM831X_DC2_CONTROL_1:
+ case WM831X_DC2_CONTROL_2:
+ case WM831X_DC2_ON_CONFIG:
+ case WM831X_DC2_SLEEP_CONTROL:
+ case WM831X_DC2_DVS_CONTROL:
+ case WM831X_DC3_CONTROL_1:
+ case WM831X_DC3_CONTROL_2:
+ case WM831X_DC3_ON_CONFIG:
+ case WM831X_DC3_SLEEP_CONTROL:
+ case WM831X_DC4_CONTROL:
+ case WM831X_DC4_SLEEP_CONTROL:
+ case WM831X_EPE1_CONTROL:
+ case WM831X_EPE2_CONTROL:
+ case WM831X_LDO1_CONTROL:
+ case WM831X_LDO1_ON_CONTROL:
+ case WM831X_LDO1_SLEEP_CONTROL:
+ case WM831X_LDO2_CONTROL:
+ case WM831X_LDO2_ON_CONTROL:
+ case WM831X_LDO2_SLEEP_CONTROL:
+ case WM831X_LDO3_CONTROL:
+ case WM831X_LDO3_ON_CONTROL:
+ case WM831X_LDO3_SLEEP_CONTROL:
+ case WM831X_LDO4_CONTROL:
+ case WM831X_LDO4_ON_CONTROL:
+ case WM831X_LDO4_SLEEP_CONTROL:
+ case WM831X_LDO5_CONTROL:
+ case WM831X_LDO5_ON_CONTROL:
+ case WM831X_LDO5_SLEEP_CONTROL:
+ case WM831X_LDO6_CONTROL:
+ case WM831X_LDO6_ON_CONTROL:
+ case WM831X_LDO6_SLEEP_CONTROL:
+ case WM831X_LDO7_CONTROL:
+ case WM831X_LDO7_ON_CONTROL:
+ case WM831X_LDO7_SLEEP_CONTROL:
+ case WM831X_LDO8_CONTROL:
+ case WM831X_LDO8_ON_CONTROL:
+ case WM831X_LDO8_SLEEP_CONTROL:
+ case WM831X_LDO9_CONTROL:
+ case WM831X_LDO9_ON_CONTROL:
+ case WM831X_LDO9_SLEEP_CONTROL:
+ case WM831X_LDO10_CONTROL:
+ case WM831X_LDO10_ON_CONTROL:
+ case WM831X_LDO10_SLEEP_CONTROL:
+ case WM831X_LDO11_ON_CONTROL:
+ case WM831X_LDO11_SLEEP_CONTROL:
+ case WM831X_POWER_GOOD_SOURCE_1:
+ case WM831X_POWER_GOOD_SOURCE_2:
+ case WM831X_CLOCK_CONTROL_1:
+ case WM831X_CLOCK_CONTROL_2:
+ case WM831X_FLL_CONTROL_1:
+ case WM831X_FLL_CONTROL_2:
+ case WM831X_FLL_CONTROL_3:
+ case WM831X_FLL_CONTROL_4:
+ case WM831X_FLL_CONTROL_5:
+ case WM831X_UNIQUE_ID_1:
+ case WM831X_UNIQUE_ID_2:
+ case WM831X_UNIQUE_ID_3:
+ case WM831X_UNIQUE_ID_4:
+ case WM831X_UNIQUE_ID_5:
+ case WM831X_UNIQUE_ID_6:
+ case WM831X_UNIQUE_ID_7:
+ case WM831X_UNIQUE_ID_8:
+ case WM831X_FACTORY_OTP_ID:
+ case WM831X_FACTORY_OTP_1:
+ case WM831X_FACTORY_OTP_2:
+ case WM831X_FACTORY_OTP_3:
+ case WM831X_FACTORY_OTP_4:
+ case WM831X_FACTORY_OTP_5:
+ case WM831X_CUSTOMER_OTP_ID:
+ case WM831X_DC1_OTP_CONTROL:
+ case WM831X_DC2_OTP_CONTROL:
+ case WM831X_DC3_OTP_CONTROL:
+ case WM831X_LDO1_2_OTP_CONTROL:
+ case WM831X_LDO3_4_OTP_CONTROL:
+ case WM831X_LDO5_6_OTP_CONTROL:
+ case WM831X_LDO7_8_OTP_CONTROL:
+ case WM831X_LDO9_10_OTP_CONTROL:
+ case WM831X_LDO11_EPE_CONTROL:
+ case WM831X_GPIO1_OTP_CONTROL:
+ case WM831X_GPIO2_OTP_CONTROL:
+ case WM831X_GPIO3_OTP_CONTROL:
+ case WM831X_GPIO4_OTP_CONTROL:
+ case WM831X_GPIO5_OTP_CONTROL:
+ case WM831X_GPIO6_OTP_CONTROL:
+ case WM831X_DBE_CHECK_DATA:
+ return true;
+ default:
+ return false;
+ }
+}
- ret = wm831x->read_dev(wm831x, reg, bytes, dest);
- if (ret < 0)
- return ret;
+static bool wm831x_reg_writeable(struct device *dev, unsigned int reg)
+{
+ struct wm831x *wm831x = dev_get_drvdata(dev);
- for (i = 0; i < bytes / 2; i++) {
- buf[i] = be16_to_cpu(buf[i]);
+ if (wm831x_reg_locked(wm831x, reg))
+ return false;
- dev_vdbg(wm831x->dev, "Read %04x from R%d(0x%x)\n",
- buf[i], reg + i, reg + i);
+ switch (reg) {
+ case WM831X_SYSVDD_CONTROL:
+ case WM831X_THERMAL_MONITORING:
+ case WM831X_POWER_STATE:
+ case WM831X_WATCHDOG:
+ case WM831X_ON_PIN_CONTROL:
+ case WM831X_RESET_CONTROL:
+ case WM831X_CONTROL_INTERFACE:
+ case WM831X_SECURITY_KEY:
+ case WM831X_SOFTWARE_SCRATCH:
+ case WM831X_OTP_CONTROL:
+ case WM831X_GPIO_LEVEL:
+ case WM831X_INTERRUPT_STATUS_1:
+ case WM831X_INTERRUPT_STATUS_2:
+ case WM831X_INTERRUPT_STATUS_3:
+ case WM831X_INTERRUPT_STATUS_4:
+ case WM831X_INTERRUPT_STATUS_5:
+ case WM831X_IRQ_CONFIG:
+ case WM831X_SYSTEM_INTERRUPTS_MASK:
+ case WM831X_INTERRUPT_STATUS_1_MASK:
+ case WM831X_INTERRUPT_STATUS_2_MASK:
+ case WM831X_INTERRUPT_STATUS_3_MASK:
+ case WM831X_INTERRUPT_STATUS_4_MASK:
+ case WM831X_INTERRUPT_STATUS_5_MASK:
+ case WM831X_RTC_TIME_1:
+ case WM831X_RTC_TIME_2:
+ case WM831X_RTC_ALARM_1:
+ case WM831X_RTC_ALARM_2:
+ case WM831X_RTC_CONTROL:
+ case WM831X_RTC_TRIM:
+ case WM831X_TOUCH_CONTROL_1:
+ case WM831X_TOUCH_CONTROL_2:
+ case WM831X_AUXADC_CONTROL:
+ case WM831X_AUXADC_SOURCE:
+ case WM831X_COMPARATOR_CONTROL:
+ case WM831X_COMPARATOR_1:
+ case WM831X_COMPARATOR_2:
+ case WM831X_COMPARATOR_3:
+ case WM831X_COMPARATOR_4:
+ case WM831X_GPIO1_CONTROL:
+ case WM831X_GPIO2_CONTROL:
+ case WM831X_GPIO3_CONTROL:
+ case WM831X_GPIO4_CONTROL:
+ case WM831X_GPIO5_CONTROL:
+ case WM831X_GPIO6_CONTROL:
+ case WM831X_GPIO7_CONTROL:
+ case WM831X_GPIO8_CONTROL:
+ case WM831X_GPIO9_CONTROL:
+ case WM831X_GPIO10_CONTROL:
+ case WM831X_GPIO11_CONTROL:
+ case WM831X_GPIO12_CONTROL:
+ case WM831X_GPIO13_CONTROL:
+ case WM831X_GPIO14_CONTROL:
+ case WM831X_GPIO15_CONTROL:
+ case WM831X_GPIO16_CONTROL:
+ case WM831X_CHARGER_CONTROL_1:
+ case WM831X_CHARGER_CONTROL_2:
+ case WM831X_CHARGER_STATUS:
+ case WM831X_BACKUP_CHARGER_CONTROL:
+ case WM831X_STATUS_LED_1:
+ case WM831X_STATUS_LED_2:
+ case WM831X_CURRENT_SINK_1:
+ case WM831X_CURRENT_SINK_2:
+ case WM831X_DCDC_ENABLE:
+ case WM831X_LDO_ENABLE:
+ case WM831X_DC1_CONTROL_1:
+ case WM831X_DC1_CONTROL_2:
+ case WM831X_DC1_ON_CONFIG:
+ case WM831X_DC1_SLEEP_CONTROL:
+ case WM831X_DC1_DVS_CONTROL:
+ case WM831X_DC2_CONTROL_1:
+ case WM831X_DC2_CONTROL_2:
+ case WM831X_DC2_ON_CONFIG:
+ case WM831X_DC2_SLEEP_CONTROL:
+ case WM831X_DC2_DVS_CONTROL:
+ case WM831X_DC3_CONTROL_1:
+ case WM831X_DC3_CONTROL_2:
+ case WM831X_DC3_ON_CONFIG:
+ case WM831X_DC3_SLEEP_CONTROL:
+ case WM831X_DC4_CONTROL:
+ case WM831X_DC4_SLEEP_CONTROL:
+ case WM831X_EPE1_CONTROL:
+ case WM831X_EPE2_CONTROL:
+ case WM831X_LDO1_CONTROL:
+ case WM831X_LDO1_ON_CONTROL:
+ case WM831X_LDO1_SLEEP_CONTROL:
+ case WM831X_LDO2_CONTROL:
+ case WM831X_LDO2_ON_CONTROL:
+ case WM831X_LDO2_SLEEP_CONTROL:
+ case WM831X_LDO3_CONTROL:
+ case WM831X_LDO3_ON_CONTROL:
+ case WM831X_LDO3_SLEEP_CONTROL:
+ case WM831X_LDO4_CONTROL:
+ case WM831X_LDO4_ON_CONTROL:
+ case WM831X_LDO4_SLEEP_CONTROL:
+ case WM831X_LDO5_CONTROL:
+ case WM831X_LDO5_ON_CONTROL:
+ case WM831X_LDO5_SLEEP_CONTROL:
+ case WM831X_LDO6_CONTROL:
+ case WM831X_LDO6_ON_CONTROL:
+ case WM831X_LDO6_SLEEP_CONTROL:
+ case WM831X_LDO7_CONTROL:
+ case WM831X_LDO7_ON_CONTROL:
+ case WM831X_LDO7_SLEEP_CONTROL:
+ case WM831X_LDO8_CONTROL:
+ case WM831X_LDO8_ON_CONTROL:
+ case WM831X_LDO8_SLEEP_CONTROL:
+ case WM831X_LDO9_CONTROL:
+ case WM831X_LDO9_ON_CONTROL:
+ case WM831X_LDO9_SLEEP_CONTROL:
+ case WM831X_LDO10_CONTROL:
+ case WM831X_LDO10_ON_CONTROL:
+ case WM831X_LDO10_SLEEP_CONTROL:
+ case WM831X_LDO11_ON_CONTROL:
+ case WM831X_LDO11_SLEEP_CONTROL:
+ case WM831X_POWER_GOOD_SOURCE_1:
+ case WM831X_POWER_GOOD_SOURCE_2:
+ case WM831X_CLOCK_CONTROL_1:
+ case WM831X_CLOCK_CONTROL_2:
+ case WM831X_FLL_CONTROL_1:
+ case WM831X_FLL_CONTROL_2:
+ case WM831X_FLL_CONTROL_3:
+ case WM831X_FLL_CONTROL_4:
+ case WM831X_FLL_CONTROL_5:
+ return true;
+ default:
+ return false;
}
+}
- return 0;
+static bool wm831x_reg_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM831X_SYSTEM_STATUS:
+ case WM831X_ON_SOURCE:
+ case WM831X_OFF_SOURCE:
+ case WM831X_GPIO_LEVEL:
+ case WM831X_SYSTEM_INTERRUPTS:
+ case WM831X_INTERRUPT_STATUS_1:
+ case WM831X_INTERRUPT_STATUS_2:
+ case WM831X_INTERRUPT_STATUS_3:
+ case WM831X_INTERRUPT_STATUS_4:
+ case WM831X_INTERRUPT_STATUS_5:
+ case WM831X_RTC_TIME_1:
+ case WM831X_RTC_TIME_2:
+ case WM831X_TOUCH_DATA_X:
+ case WM831X_TOUCH_DATA_Y:
+ case WM831X_TOUCH_DATA_Z:
+ case WM831X_AUXADC_DATA:
+ case WM831X_CHARGER_STATUS:
+ case WM831X_DCDC_STATUS:
+ case WM831X_LDO_STATUS:
+ case WM831X_DCDC_UV_STATUS:
+ case WM831X_LDO_UV_STATUS:
+ return true;
+ default:
+ return false;
+ }
}
/**
*/
int wm831x_reg_read(struct wm831x *wm831x, unsigned short reg)
{
- unsigned short val;
+ unsigned int val;
int ret;
- mutex_lock(&wm831x->io_lock);
-
- ret = wm831x_read(wm831x, reg, 2, &val);
-
- mutex_unlock(&wm831x->io_lock);
+ ret = regmap_read(wm831x->regmap, reg, &val);
if (ret < 0)
return ret;
int wm831x_bulk_read(struct wm831x *wm831x, unsigned short reg,
int count, u16 *buf)
{
- int ret;
-
- mutex_lock(&wm831x->io_lock);
-
- ret = wm831x_read(wm831x, reg, count * 2, buf);
-
- mutex_unlock(&wm831x->io_lock);
-
- return ret;
+ return regmap_bulk_read(wm831x->regmap, reg, buf, count);
}
EXPORT_SYMBOL_GPL(wm831x_bulk_read);
int bytes, void *src)
{
u16 *buf = src;
- int i;
+ int i, ret;
BUG_ON(bytes % 2);
BUG_ON(bytes <= 0);
dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
buf[i], reg + i, reg + i);
-
- buf[i] = cpu_to_be16(buf[i]);
+ ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
}
- return wm831x->write_dev(wm831x, reg, bytes, src);
+ return 0;
}
/**
unsigned short mask, unsigned short val)
{
int ret;
- u16 r;
mutex_lock(&wm831x->io_lock);
- ret = wm831x_read(wm831x, reg, 2, &r);
- if (ret < 0)
- goto out;
-
- r &= ~mask;
- r |= val & mask;
-
- ret = wm831x_write(wm831x, reg, 2, &r);
+ if (!wm831x_reg_locked(wm831x, reg))
+ ret = regmap_update_bits(wm831x->regmap, reg, mask, val);
+ else
+ ret = -EPERM;
-out:
mutex_unlock(&wm831x->io_lock);
return ret;
},
};
+struct regmap_config wm831x_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 16,
+
+ .cache_type = REGCACHE_RBTREE,
+
+ .max_register = WM831X_DBE_CHECK_DATA,
+ .readable_reg = wm831x_reg_readable,
+ .writeable_reg = wm831x_reg_writeable,
+ .volatile_reg = wm831x_reg_volatile,
+};
+EXPORT_SYMBOL_GPL(wm831x_regmap_config);
+
/*
* Instantiate the generic non-control parts of the device.
*/
mutex_init(&wm831x->io_lock);
mutex_init(&wm831x->key_lock);
dev_set_drvdata(wm831x->dev, wm831x);
+ wm831x->soft_shutdown = pdata->soft_shutdown;
ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
- goto err;
+ goto err_regmap;
}
switch (ret) {
case 0x6204:
default:
dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
ret = -EINVAL;
- goto err;
+ goto err_regmap;
}
ret = wm831x_reg_read(wm831x, WM831X_REVISION);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read revision: %d\n", ret);
- goto err;
+ goto err_regmap;
}
rev = (ret & WM831X_PARENT_REV_MASK) >> WM831X_PARENT_REV_SHIFT;
ret = wm831x_reg_read(wm831x, WM831X_RESET_ID);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read device ID: %d\n", ret);
- goto err;
+ goto err_regmap;
}
/* Some engineering samples do not have the ID set, rely on
default:
dev_err(wm831x->dev, "Unknown WM831x device %04x\n", ret);
ret = -EINVAL;
- goto err;
+ goto err_regmap;
}
/* This will need revisiting in future but is OK for all
ret = wm831x_reg_read(wm831x, WM831X_SECURITY_KEY);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read security key: %d\n", ret);
- goto err;
+ goto err_regmap;
}
if (ret != 0) {
dev_warn(wm831x->dev, "Security key had non-zero value %x\n",
ret = pdata->pre_init(wm831x);
if (ret != 0) {
dev_err(wm831x->dev, "pre_init() failed: %d\n", ret);
- goto err;
+ goto err_regmap;
}
}
ret = wm831x_irq_init(wm831x, irq);
if (ret != 0)
- goto err;
+ goto err_regmap;
wm831x_auxadc_init(wm831x);
err_irq:
wm831x_irq_exit(wm831x);
-err:
+err_regmap:
mfd_remove_devices(wm831x->dev);
+ regmap_exit(wm831x->regmap);
kfree(wm831x);
return ret;
}
if (wm831x->irq_base)
free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
wm831x_irq_exit(wm831x);
+ regmap_exit(wm831x->regmap);
kfree(wm831x);
}
return 0;
}
+void wm831x_device_shutdown(struct wm831x *wm831x)
+{
+ if (wm831x->soft_shutdown) {
+ dev_info(wm831x->dev, "Initiating shutdown...\n");
+ wm831x_set_bits(wm831x, WM831X_POWER_STATE, WM831X_CHIP_ON, 0);
+ }
+}
+EXPORT_SYMBOL_GPL(wm831x_device_shutdown);
+
MODULE_DESCRIPTION("Core support for the WM831X AudioPlus PMIC");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mark Brown");
git.openpandora.org / pandora-kernel.git / blobdiff