--- /dev/null
+/*
+ * da9063-core.c: Device access for Dialog DA9063 modules
+ *
+ * Copyright 2012 Dialog Semiconductors Ltd.
+ * Copyright 2013 Philipp Zabel, Pengutronix
+ *
+ * Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com>,
+ * Michal Hajduk <michal.hajduk@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/regmap.h>
+
+#include <linux/mfd/da9063/core.h>
+#include <linux/mfd/da9063/pdata.h>
+#include <linux/mfd/da9063/registers.h>
+
+#include <linux/proc_fs.h>
+#include <linux/kthread.h>
+#include <linux/uaccess.h>
+
+
+static struct resource da9063_regulators_resources[] = {
+ {
+ .name = "LDO_LIM",
+ .start = DA9063_IRQ_LDO_LIM,
+ .end = DA9063_IRQ_LDO_LIM,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource da9063_rtc_resources[] = {
+ {
+ .name = "ALARM",
+ .start = DA9063_IRQ_ALARM,
+ .end = DA9063_IRQ_ALARM,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "TICK",
+ .start = DA9063_IRQ_TICK,
+ .end = DA9063_IRQ_TICK,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct resource da9063_onkey_resources[] = {
+ {
+ .start = DA9063_IRQ_ONKEY,
+ .end = DA9063_IRQ_ONKEY,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource da9063_hwmon_resources[] = {
+ {
+ .start = DA9063_IRQ_ADC_RDY,
+ .end = DA9063_IRQ_ADC_RDY,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+
+static const struct mfd_cell da9063_devs[] = {
+ {
+ .name = DA9063_DRVNAME_REGULATORS,
+ .num_resources = ARRAY_SIZE(da9063_regulators_resources),
+ .resources = da9063_regulators_resources,
+ },
+ {
+ .name = DA9063_DRVNAME_LEDS,
+ },
+ {
+ .name = DA9063_DRVNAME_WATCHDOG,
+ .of_compatible = "dlg,da9063-watchdog",
+ },
+ {
+ .name = DA9063_DRVNAME_HWMON,
+ .num_resources = ARRAY_SIZE(da9063_hwmon_resources),
+ .resources = da9063_hwmon_resources,
+ },
+ {
+ .name = DA9063_DRVNAME_ONKEY,
+ .num_resources = ARRAY_SIZE(da9063_onkey_resources),
+ .resources = da9063_onkey_resources,
+ },
+ {
+ .name = DA9063_DRVNAME_RTC,
+ .num_resources = ARRAY_SIZE(da9063_rtc_resources),
+ .resources = da9063_rtc_resources,
+ .of_compatible = "dlg,da9063-rtc",
+ },
+ {
+ .name = DA9063_DRVNAME_VIBRATION,
+ },
+};
+
+int da9063_device_init(struct da9063 *da9063, unsigned int irq)
+{
+ struct da9063_pdata *pdata = da9063->dev->platform_data;
+ int model, variant_id, variant_code;
+ int ret;
+
+ if (pdata) {
+ da9063->flags = pdata->flags;
+ da9063->irq_base = pdata->irq_base;
+ } else {
+ da9063->flags = 0;
+ da9063->irq_base = -1;
+ }
+ da9063->chip_irq = irq;
+
+ if (pdata && pdata->init != NULL) {
+ ret = pdata->init(da9063);
+ if (ret != 0) {
+ dev_err(da9063->dev,
+ "Platform initialization failed.\n");
+ return ret;
+ }
+ }
+
+ ret = regmap_read(da9063->regmap, DA9063_REG_CHIP_ID, &model);
+ if (ret < 0) {
+ dev_err(da9063->dev, "Cannot read chip model id.\n");
+ return -EIO;
+ }
+ if (model != PMIC_DA9063) {
+ dev_err(da9063->dev, "Invalid chip model id: 0x%02x\n", model);
+ return -ENODEV;
+ }
+
+ ret = regmap_read(da9063->regmap, DA9063_REG_CHIP_VARIANT, &variant_id);
+ if (ret < 0) {
+ dev_err(da9063->dev, "Cannot read chip variant id.\n");
+ return -EIO;
+ }
+
+ variant_code = variant_id >> DA9063_CHIP_VARIANT_SHIFT;
+
+ dev_info(da9063->dev,
+ "Device detected (chip-ID: 0x%02X, var-ID: 0x%02X)\n",
+ model, variant_id);
+
+ if (variant_code < PMIC_DA9063_BB && variant_code != PMIC_DA9063_AD) {
+ dev_err(da9063->dev,
+ "Cannot support variant code: 0x%02X\n", variant_code);
+ return -ENODEV;
+ }
+
+ da9063->model = model;
+ da9063->variant_code = variant_code;
+
+ ret = da9063_irq_init(da9063);
+ if (ret) {
+ dev_err(da9063->dev, "Cannot initialize interrupts.\n");
+ return ret;
+ }
+
+ da9063->irq_base = regmap_irq_chip_get_base(da9063->regmap_irq);
+
+ ret = mfd_add_devices(da9063->dev, -1, da9063_devs,
+ ARRAY_SIZE(da9063_devs), NULL, da9063->irq_base,
+ NULL);
+ if (ret)
+ dev_err(da9063->dev, "Cannot add MFD cells\n");
+
+ return ret;
+}
+
+void da9063_device_exit(struct da9063 *da9063)
+{
+ mfd_remove_devices(da9063->dev);
+ da9063_irq_exit(da9063);
+}
+
+MODULE_DESCRIPTION("PMIC driver for Dialog DA9063");
+MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>, Michal Hajduk <michal.hajduk@diasemi.com>");
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff