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path: root/drivers/mfd/da9055-core.c
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Diffstat (limited to 'drivers/mfd/da9055-core.c')
-rw-r--r--drivers/mfd/da9055-core.c424
1 files changed, 424 insertions, 0 deletions
diff --git a/drivers/mfd/da9055-core.c b/drivers/mfd/da9055-core.c
new file mode 100644
index 000000000..6d0af8486
--- /dev/null
+++ b/drivers/mfd/da9055-core.c
@@ -0,0 +1,424 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Device access for Dialog DA9055 PMICs.
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/mutex.h>
+
+#include <linux/mfd/core.h>
+#include <linux/mfd/da9055/core.h>
+#include <linux/mfd/da9055/pdata.h>
+#include <linux/mfd/da9055/reg.h>
+
+#define DA9055_IRQ_NONKEY_MASK 0x01
+#define DA9055_IRQ_ALM_MASK 0x02
+#define DA9055_IRQ_TICK_MASK 0x04
+#define DA9055_IRQ_ADC_MASK 0x08
+#define DA9055_IRQ_BUCK_ILIM_MASK 0x08
+
+static bool da9055_register_readable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case DA9055_REG_STATUS_A:
+ case DA9055_REG_STATUS_B:
+ case DA9055_REG_EVENT_A:
+ case DA9055_REG_EVENT_B:
+ case DA9055_REG_EVENT_C:
+ case DA9055_REG_IRQ_MASK_A:
+ case DA9055_REG_IRQ_MASK_B:
+ case DA9055_REG_IRQ_MASK_C:
+
+ case DA9055_REG_CONTROL_A:
+ case DA9055_REG_CONTROL_B:
+ case DA9055_REG_CONTROL_C:
+ case DA9055_REG_CONTROL_D:
+ case DA9055_REG_CONTROL_E:
+
+ case DA9055_REG_ADC_MAN:
+ case DA9055_REG_ADC_CONT:
+ case DA9055_REG_VSYS_MON:
+ case DA9055_REG_ADC_RES_L:
+ case DA9055_REG_ADC_RES_H:
+ case DA9055_REG_VSYS_RES:
+ case DA9055_REG_ADCIN1_RES:
+ case DA9055_REG_ADCIN2_RES:
+ case DA9055_REG_ADCIN3_RES:
+
+ case DA9055_REG_COUNT_S:
+ case DA9055_REG_COUNT_MI:
+ case DA9055_REG_COUNT_H:
+ case DA9055_REG_COUNT_D:
+ case DA9055_REG_COUNT_MO:
+ case DA9055_REG_COUNT_Y:
+ case DA9055_REG_ALARM_H:
+ case DA9055_REG_ALARM_D:
+ case DA9055_REG_ALARM_MI:
+ case DA9055_REG_ALARM_MO:
+ case DA9055_REG_ALARM_Y:
+
+ case DA9055_REG_GPIO0_1:
+ case DA9055_REG_GPIO2:
+ case DA9055_REG_GPIO_MODE0_2:
+
+ case DA9055_REG_BCORE_CONT:
+ case DA9055_REG_BMEM_CONT:
+ case DA9055_REG_LDO1_CONT:
+ case DA9055_REG_LDO2_CONT:
+ case DA9055_REG_LDO3_CONT:
+ case DA9055_REG_LDO4_CONT:
+ case DA9055_REG_LDO5_CONT:
+ case DA9055_REG_LDO6_CONT:
+ case DA9055_REG_BUCK_LIM:
+ case DA9055_REG_BCORE_MODE:
+ case DA9055_REG_VBCORE_A:
+ case DA9055_REG_VBMEM_A:
+ case DA9055_REG_VLDO1_A:
+ case DA9055_REG_VLDO2_A:
+ case DA9055_REG_VLDO3_A:
+ case DA9055_REG_VLDO4_A:
+ case DA9055_REG_VLDO5_A:
+ case DA9055_REG_VLDO6_A:
+ case DA9055_REG_VBCORE_B:
+ case DA9055_REG_VBMEM_B:
+ case DA9055_REG_VLDO1_B:
+ case DA9055_REG_VLDO2_B:
+ case DA9055_REG_VLDO3_B:
+ case DA9055_REG_VLDO4_B:
+ case DA9055_REG_VLDO5_B:
+ case DA9055_REG_VLDO6_B:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool da9055_register_writeable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case DA9055_REG_STATUS_A:
+ case DA9055_REG_STATUS_B:
+ case DA9055_REG_EVENT_A:
+ case DA9055_REG_EVENT_B:
+ case DA9055_REG_EVENT_C:
+ case DA9055_REG_IRQ_MASK_A:
+ case DA9055_REG_IRQ_MASK_B:
+ case DA9055_REG_IRQ_MASK_C:
+
+ case DA9055_REG_CONTROL_A:
+ case DA9055_REG_CONTROL_B:
+ case DA9055_REG_CONTROL_C:
+ case DA9055_REG_CONTROL_D:
+ case DA9055_REG_CONTROL_E:
+
+ case DA9055_REG_ADC_MAN:
+ case DA9055_REG_ADC_CONT:
+ case DA9055_REG_VSYS_MON:
+ case DA9055_REG_ADC_RES_L:
+ case DA9055_REG_ADC_RES_H:
+ case DA9055_REG_VSYS_RES:
+ case DA9055_REG_ADCIN1_RES:
+ case DA9055_REG_ADCIN2_RES:
+ case DA9055_REG_ADCIN3_RES:
+
+ case DA9055_REG_COUNT_S:
+ case DA9055_REG_COUNT_MI:
+ case DA9055_REG_COUNT_H:
+ case DA9055_REG_COUNT_D:
+ case DA9055_REG_COUNT_MO:
+ case DA9055_REG_COUNT_Y:
+ case DA9055_REG_ALARM_H:
+ case DA9055_REG_ALARM_D:
+ case DA9055_REG_ALARM_MI:
+ case DA9055_REG_ALARM_MO:
+ case DA9055_REG_ALARM_Y:
+
+ case DA9055_REG_GPIO0_1:
+ case DA9055_REG_GPIO2:
+ case DA9055_REG_GPIO_MODE0_2:
+
+ case DA9055_REG_BCORE_CONT:
+ case DA9055_REG_BMEM_CONT:
+ case DA9055_REG_LDO1_CONT:
+ case DA9055_REG_LDO2_CONT:
+ case DA9055_REG_LDO3_CONT:
+ case DA9055_REG_LDO4_CONT:
+ case DA9055_REG_LDO5_CONT:
+ case DA9055_REG_LDO6_CONT:
+ case DA9055_REG_BUCK_LIM:
+ case DA9055_REG_BCORE_MODE:
+ case DA9055_REG_VBCORE_A:
+ case DA9055_REG_VBMEM_A:
+ case DA9055_REG_VLDO1_A:
+ case DA9055_REG_VLDO2_A:
+ case DA9055_REG_VLDO3_A:
+ case DA9055_REG_VLDO4_A:
+ case DA9055_REG_VLDO5_A:
+ case DA9055_REG_VLDO6_A:
+ case DA9055_REG_VBCORE_B:
+ case DA9055_REG_VBMEM_B:
+ case DA9055_REG_VLDO1_B:
+ case DA9055_REG_VLDO2_B:
+ case DA9055_REG_VLDO3_B:
+ case DA9055_REG_VLDO4_B:
+ case DA9055_REG_VLDO5_B:
+ case DA9055_REG_VLDO6_B:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool da9055_register_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case DA9055_REG_STATUS_A:
+ case DA9055_REG_STATUS_B:
+ case DA9055_REG_EVENT_A:
+ case DA9055_REG_EVENT_B:
+ case DA9055_REG_EVENT_C:
+
+ case DA9055_REG_CONTROL_A:
+ case DA9055_REG_CONTROL_E:
+
+ case DA9055_REG_ADC_MAN:
+ case DA9055_REG_ADC_RES_L:
+ case DA9055_REG_ADC_RES_H:
+ case DA9055_REG_VSYS_RES:
+ case DA9055_REG_ADCIN1_RES:
+ case DA9055_REG_ADCIN2_RES:
+ case DA9055_REG_ADCIN3_RES:
+
+ case DA9055_REG_COUNT_S:
+ case DA9055_REG_COUNT_MI:
+ case DA9055_REG_COUNT_H:
+ case DA9055_REG_COUNT_D:
+ case DA9055_REG_COUNT_MO:
+ case DA9055_REG_COUNT_Y:
+ case DA9055_REG_ALARM_MI:
+
+ case DA9055_REG_BCORE_CONT:
+ case DA9055_REG_BMEM_CONT:
+ case DA9055_REG_LDO1_CONT:
+ case DA9055_REG_LDO2_CONT:
+ case DA9055_REG_LDO3_CONT:
+ case DA9055_REG_LDO4_CONT:
+ case DA9055_REG_LDO5_CONT:
+ case DA9055_REG_LDO6_CONT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_irq da9055_irqs[] = {
+ [DA9055_IRQ_NONKEY] = {
+ .reg_offset = 0,
+ .mask = DA9055_IRQ_NONKEY_MASK,
+ },
+ [DA9055_IRQ_ALARM] = {
+ .reg_offset = 0,
+ .mask = DA9055_IRQ_ALM_MASK,
+ },
+ [DA9055_IRQ_TICK] = {
+ .reg_offset = 0,
+ .mask = DA9055_IRQ_TICK_MASK,
+ },
+ [DA9055_IRQ_HWMON] = {
+ .reg_offset = 0,
+ .mask = DA9055_IRQ_ADC_MASK,
+ },
+ [DA9055_IRQ_REGULATOR] = {
+ .reg_offset = 1,
+ .mask = DA9055_IRQ_BUCK_ILIM_MASK,
+ },
+};
+
+const struct regmap_config da9055_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .cache_type = REGCACHE_RBTREE,
+
+ .max_register = DA9055_MAX_REGISTER_CNT,
+ .readable_reg = da9055_register_readable,
+ .writeable_reg = da9055_register_writeable,
+ .volatile_reg = da9055_register_volatile,
+};
+EXPORT_SYMBOL_GPL(da9055_regmap_config);
+
+static struct resource da9055_onkey_resource = {
+ .name = "ONKEY",
+ .start = DA9055_IRQ_NONKEY,
+ .end = DA9055_IRQ_NONKEY,
+ .flags = IORESOURCE_IRQ,
+};
+
+static struct resource da9055_rtc_resource[] = {
+ {
+ .name = "ALM",
+ .start = DA9055_IRQ_ALARM,
+ .end = DA9055_IRQ_ALARM,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "TICK",
+ .start = DA9055_IRQ_TICK,
+ .end = DA9055_IRQ_TICK,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource da9055_hwmon_resource = {
+ .name = "HWMON",
+ .start = DA9055_IRQ_HWMON,
+ .end = DA9055_IRQ_HWMON,
+ .flags = IORESOURCE_IRQ,
+};
+
+static struct resource da9055_ld05_6_resource = {
+ .name = "REGULATOR",
+ .start = DA9055_IRQ_REGULATOR,
+ .end = DA9055_IRQ_REGULATOR,
+ .flags = IORESOURCE_IRQ,
+};
+
+static const struct mfd_cell da9055_devs[] = {
+ {
+ .of_compatible = "dlg,da9055-gpio",
+ .name = "da9055-gpio",
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 1,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 2,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 3,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 4,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 5,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 6,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .id = 7,
+ .resources = &da9055_ld05_6_resource,
+ .num_resources = 1,
+ },
+ {
+ .of_compatible = "dlg,da9055-regulator",
+ .name = "da9055-regulator",
+ .resources = &da9055_ld05_6_resource,
+ .num_resources = 1,
+ .id = 8,
+ },
+ {
+ .of_compatible = "dlg,da9055-onkey",
+ .name = "da9055-onkey",
+ .resources = &da9055_onkey_resource,
+ .num_resources = 1,
+ },
+ {
+ .of_compatible = "dlg,da9055-rtc",
+ .name = "da9055-rtc",
+ .resources = da9055_rtc_resource,
+ .num_resources = ARRAY_SIZE(da9055_rtc_resource),
+ },
+ {
+ .of_compatible = "dlg,da9055-hwmon",
+ .name = "da9055-hwmon",
+ .resources = &da9055_hwmon_resource,
+ .num_resources = 1,
+ },
+ {
+ .of_compatible = "dlg,da9055-watchdog",
+ .name = "da9055-watchdog",
+ },
+};
+
+static const struct regmap_irq_chip da9055_regmap_irq_chip = {
+ .name = "da9055_irq",
+ .status_base = DA9055_REG_EVENT_A,
+ .mask_base = DA9055_REG_IRQ_MASK_A,
+ .ack_base = DA9055_REG_EVENT_A,
+ .num_regs = 3,
+ .irqs = da9055_irqs,
+ .num_irqs = ARRAY_SIZE(da9055_irqs),
+};
+
+int da9055_device_init(struct da9055 *da9055)
+{
+ struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
+ int ret;
+ uint8_t clear_events[3] = {0xFF, 0xFF, 0xFF};
+
+ if (pdata && pdata->init != NULL)
+ pdata->init(da9055);
+
+ if (!pdata || !pdata->irq_base)
+ da9055->irq_base = -1;
+ else
+ da9055->irq_base = pdata->irq_base;
+
+ ret = da9055_group_write(da9055, DA9055_REG_EVENT_A, 3, clear_events);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ da9055->irq_base, &da9055_regmap_irq_chip,
+ &da9055->irq_data);
+ if (ret < 0)
+ return ret;
+
+ da9055->irq_base = regmap_irq_chip_get_base(da9055->irq_data);
+
+ ret = mfd_add_devices(da9055->dev, -1,
+ da9055_devs, ARRAY_SIZE(da9055_devs),
+ NULL, da9055->irq_base, NULL);
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ mfd_remove_devices(da9055->dev);
+ return ret;
+}
+
+void da9055_device_exit(struct da9055 *da9055)
+{
+ regmap_del_irq_chip(da9055->chip_irq, da9055->irq_data);
+ mfd_remove_devices(da9055->dev);
+}
+
+MODULE_DESCRIPTION("Core support for the DA9055 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 23:20:53 +0000