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-rw-r--r--drivers/mfd/Kconfig16
-rw-r--r--drivers/mfd/Makefile2
-rw-r--r--drivers/mfd/da903x.c563
-rw-r--r--drivers/mfd/htc-egpio.c2
-rw-r--r--drivers/mfd/mfd-core.c15
-rw-r--r--drivers/mfd/sm501.c6
-rw-r--r--drivers/mfd/t7l66xb.c40
-rw-r--r--drivers/mfd/tc6387xb.c47
-rw-r--r--drivers/mfd/tc6393xb.c296
-rw-r--r--drivers/mfd/twl4030-core.c1193
-rw-r--r--drivers/mfd/wm8350-core.c2
11 files changed, 2100 insertions, 82 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 5eff8ad834d6..5a79d2d4cdae 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -52,6 +52,8 @@ config HTC_PASIC3
config UCB1400_CORE
tristate "Philips UCB1400 Core driver"
+ depends on AC97_BUS
+ depends on GPIOLIB
help
This enables support for the Philips UCB1400 core functions.
The UCB1400 is an AC97 audio codec.
@@ -59,6 +61,20 @@ config UCB1400_CORE
To compile this driver as a module, choose M here: the
module will be called ucb1400_core.
+config TWL4030_CORE
+ bool "Texas Instruments TWL4030/TPS659x0 Support"
+ depends on I2C=y && GENERIC_HARDIRQS && (ARCH_OMAP2 || ARCH_OMAP3)
+ help
+ Say yes here if you have TWL4030 family chip on your board.
+ This core driver provides register access and IRQ handling
+ facilities, and registers devices for the various functions
+ so that function-specific drivers can bind to them.
+
+ These multi-function chips are found on many OMAP2 and OMAP3
+ boards, providing power management, RTC, GPIO, keypad, a
+ high speed USB OTG transceiver, an audio codec (on most
+ versions) and many other features.
+
config MFD_TMIO
bool
default n
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 759b1fe1c891..68e237b830ad 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -17,6 +17,8 @@ wm8350-objs := wm8350-core.o wm8350-regmap.o wm8350-gpio.o
obj-$(CONFIG_MFD_WM8350) += wm8350.o
obj-$(CONFIG_MFD_WM8350_I2C) += wm8350-i2c.o
+obj-$(CONFIG_TWL4030_CORE) += twl4030-core.o
+
obj-$(CONFIG_MFD_CORE) += mfd-core.o
obj-$(CONFIG_MCP) += mcp-core.o
diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c
new file mode 100644
index 000000000000..b57326ae464d
--- /dev/null
+++ b/drivers/mfd/da903x.c
@@ -0,0 +1,563 @@
+/*
+ * Base driver for Dialog Semiconductor DA9030/DA9034
+ *
+ * Copyright (C) 2008 Compulab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ *
+ * Copyright (C) 2006-2008 Marvell International Ltd.
+ * Eric Miao <eric.miao@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/mfd/da903x.h>
+
+#define DA9030_CHIP_ID 0x00
+#define DA9030_EVENT_A 0x01
+#define DA9030_EVENT_B 0x02
+#define DA9030_EVENT_C 0x03
+#define DA9030_STATUS 0x04
+#define DA9030_IRQ_MASK_A 0x05
+#define DA9030_IRQ_MASK_B 0x06
+#define DA9030_IRQ_MASK_C 0x07
+#define DA9030_SYS_CTRL_A 0x08
+#define DA9030_SYS_CTRL_B 0x09
+#define DA9030_FAULT_LOG 0x0a
+
+#define DA9034_CHIP_ID 0x00
+#define DA9034_EVENT_A 0x01
+#define DA9034_EVENT_B 0x02
+#define DA9034_EVENT_C 0x03
+#define DA9034_EVENT_D 0x04
+#define DA9034_STATUS_A 0x05
+#define DA9034_STATUS_B 0x06
+#define DA9034_IRQ_MASK_A 0x07
+#define DA9034_IRQ_MASK_B 0x08
+#define DA9034_IRQ_MASK_C 0x09
+#define DA9034_IRQ_MASK_D 0x0a
+#define DA9034_SYS_CTRL_A 0x0b
+#define DA9034_SYS_CTRL_B 0x0c
+#define DA9034_FAULT_LOG 0x0d
+
+struct da903x_chip;
+
+struct da903x_chip_ops {
+ int (*init_chip)(struct da903x_chip *);
+ int (*unmask_events)(struct da903x_chip *, unsigned int events);
+ int (*mask_events)(struct da903x_chip *, unsigned int events);
+ int (*read_events)(struct da903x_chip *, unsigned int *events);
+ int (*read_status)(struct da903x_chip *, unsigned int *status);
+};
+
+struct da903x_chip {
+ struct i2c_client *client;
+ struct device *dev;
+ struct da903x_chip_ops *ops;
+
+ int type;
+ uint32_t events_mask;
+
+ struct mutex lock;
+ struct work_struct irq_work;
+
+ struct blocking_notifier_head notifier_list;
+};
+
+static inline int __da903x_read(struct i2c_client *client,
+ int reg, uint8_t *val)
+{
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, reg);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed reading at 0x%02x\n", reg);
+ return ret;
+ }
+
+ *val = (uint8_t)ret;
+ return 0;
+}
+
+static inline int __da903x_reads(struct i2c_client *client, int reg,
+ int len, uint8_t *val)
+{
+ int ret;
+
+ ret = i2c_smbus_read_i2c_block_data(client, reg, len, val);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed reading from 0x%02x\n", reg);
+ return ret;
+ }
+ return 0;
+}
+
+static inline int __da903x_write(struct i2c_client *client,
+ int reg, uint8_t val)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, reg, val);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed writing 0x%02x to 0x%02x\n",
+ val, reg);
+ return ret;
+ }
+ return 0;
+}
+
+static inline int __da903x_writes(struct i2c_client *client, int reg,
+ int len, uint8_t *val)
+{
+ int ret;
+
+ ret = i2c_smbus_write_i2c_block_data(client, reg, len, val);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed writings to 0x%02x\n", reg);
+ return ret;
+ }
+ return 0;
+}
+
+int da903x_register_notifier(struct device *dev, struct notifier_block *nb,
+ unsigned int events)
+{
+ struct da903x_chip *chip = dev_get_drvdata(dev);
+
+ chip->ops->unmask_events(chip, events);
+ return blocking_notifier_chain_register(&chip->notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(da903x_register_notifier);
+
+int da903x_unregister_notifier(struct device *dev, struct notifier_block *nb,
+ unsigned int events)
+{
+ struct da903x_chip *chip = dev_get_drvdata(dev);
+
+ chip->ops->mask_events(chip, events);
+ return blocking_notifier_chain_unregister(&chip->notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(da903x_unregister_notifier);
+
+int da903x_write(struct device *dev, int reg, uint8_t val)
+{
+ return __da903x_write(to_i2c_client(dev), reg, val);
+}
+EXPORT_SYMBOL_GPL(da903x_write);
+
+int da903x_read(struct device *dev, int reg, uint8_t *val)
+{
+ return __da903x_read(to_i2c_client(dev), reg, val);
+}
+EXPORT_SYMBOL_GPL(da903x_read);
+
+int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask)
+{
+ struct da903x_chip *chip = dev_get_drvdata(dev);
+ uint8_t reg_val;
+ int ret = 0;
+
+ mutex_lock(&chip->lock);
+
+ ret = __da903x_read(chip->client, reg, &reg_val);
+ if (ret)
+ goto out;
+
+ if ((reg_val & bit_mask) == 0) {
+ reg_val |= bit_mask;
+ ret = __da903x_write(chip->client, reg, reg_val);
+ }
+out:
+ mutex_unlock(&chip->lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da903x_set_bits);
+
+int da903x_clr_bits(struct device *dev, int reg, uint8_t bit_mask)
+{
+ struct da903x_chip *chip = dev_get_drvdata(dev);
+ uint8_t reg_val;
+ int ret = 0;
+
+ mutex_lock(&chip->lock);
+
+ ret = __da903x_read(chip->client, reg, &reg_val);
+ if (ret)
+ goto out;
+
+ if (reg_val & bit_mask) {
+ reg_val &= ~bit_mask;
+ ret = __da903x_write(chip->client, reg, reg_val);
+ }
+out:
+ mutex_unlock(&chip->lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da903x_clr_bits);
+
+int da903x_update(struct device *dev, int reg, uint8_t val, uint8_t mask)
+{
+ struct da903x_chip *chip = dev_get_drvdata(dev);
+ uint8_t reg_val;
+ int ret = 0;
+
+ mutex_lock(&chip->lock);
+
+ ret = __da903x_read(chip->client, reg, &reg_val);
+ if (ret)
+ goto out;
+
+ if ((reg_val & mask) != val) {
+ reg_val = (reg_val & ~mask) | val;
+ ret = __da903x_write(chip->client, reg, reg_val);
+ }
+out:
+ mutex_unlock(&chip->lock);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(da903x_update);
+
+int da903x_query_status(struct device *dev, unsigned int sbits)
+{
+ struct da903x_chip *chip = dev_get_drvdata(dev);
+ unsigned int status = 0;
+
+ chip->ops->read_status(chip, &status);
+ return ((status & sbits) == sbits);
+}
+EXPORT_SYMBOL(da903x_query_status);
+
+static int __devinit da9030_init_chip(struct da903x_chip *chip)
+{
+ uint8_t chip_id;
+ int err;
+
+ err = __da903x_read(chip->client, DA9030_CHIP_ID, &chip_id);
+ if (err)
+ return err;
+
+ err = __da903x_write(chip->client, DA9030_SYS_CTRL_A, 0xE8);
+ if (err)
+ return err;
+
+ dev_info(chip->dev, "DA9030 (CHIP ID: 0x%02x) detected\n", chip_id);
+ return 0;
+}
+
+static int da9030_unmask_events(struct da903x_chip *chip, unsigned int events)
+{
+ uint8_t v[3];
+
+ chip->events_mask &= ~events;
+
+ v[0] = (chip->events_mask & 0xff);
+ v[1] = (chip->events_mask >> 8) & 0xff;
+ v[2] = (chip->events_mask >> 16) & 0xff;
+
+ return __da903x_writes(chip->client, DA9030_IRQ_MASK_A, 3, v);
+}
+
+static int da9030_mask_events(struct da903x_chip *chip, unsigned int events)
+{
+ uint8_t v[3];
+
+ chip->events_mask &= ~events;
+
+ v[0] = (chip->events_mask & 0xff);
+ v[1] = (chip->events_mask >> 8) & 0xff;
+ v[2] = (chip->events_mask >> 16) & 0xff;
+
+ return __da903x_writes(chip->client, DA9030_IRQ_MASK_A, 3, v);
+}
+
+static int da9030_read_events(struct da903x_chip *chip, unsigned int *events)
+{
+ uint8_t v[3] = {0, 0, 0};
+ int ret;
+
+ ret = __da903x_reads(chip->client, DA9030_EVENT_A, 3, v);
+ if (ret < 0)
+ return ret;
+
+ *events = (v[2] << 16) | (v[1] << 8) | v[0];
+ return 0;
+}
+
+static int da9030_read_status(struct da903x_chip *chip, unsigned int *status)
+{
+ return __da903x_read(chip->client, DA9030_STATUS, (uint8_t *)status);
+}
+
+static int da9034_init_chip(struct da903x_chip *chip)
+{
+ uint8_t chip_id;
+ int err;
+
+ err = __da903x_read(chip->client, DA9034_CHIP_ID, &chip_id);
+ if (err)
+ return err;
+
+ err = __da903x_write(chip->client, DA9034_SYS_CTRL_A, 0xE8);
+ if (err)
+ return err;
+
+ /* avoid SRAM power off during sleep*/
+ __da903x_write(chip->client, 0x10, 0x07);
+ __da903x_write(chip->client, 0x11, 0xff);
+ __da903x_write(chip->client, 0x12, 0xff);
+
+ /* Enable the ONKEY power down functionality */
+ __da903x_write(chip->client, DA9034_SYS_CTRL_B, 0x20);
+ __da903x_write(chip->client, DA9034_SYS_CTRL_A, 0x60);
+
+ /* workaround to make LEDs work */
+ __da903x_write(chip->client, 0x90, 0x01);
+ __da903x_write(chip->client, 0xB0, 0x08);
+
+ /* make ADTV1 and SDTV1 effective */
+ __da903x_write(chip->client, 0x20, 0x00);
+
+ dev_info(chip->dev, "DA9034 (CHIP ID: 0x%02x) detected\n", chip_id);
+ return 0;
+}
+
+static int da9034_unmask_events(struct da903x_chip *chip, unsigned int events)
+{
+ uint8_t v[4];
+
+ chip->events_mask &= ~events;
+
+ v[0] = (chip->events_mask & 0xff);
+ v[1] = (chip->events_mask >> 8) & 0xff;
+ v[2] = (chip->events_mask >> 16) & 0xff;
+ v[3] = (chip->events_mask >> 24) & 0xff;
+
+ return __da903x_writes(chip->client, DA9034_IRQ_MASK_A, 4, v);
+}
+
+static int da9034_mask_events(struct da903x_chip *chip, unsigned int events)
+{
+ uint8_t v[4];
+
+ chip->events_mask |= events;
+
+ v[0] = (chip->events_mask & 0xff);
+ v[1] = (chip->events_mask >> 8) & 0xff;
+ v[2] = (chip->events_mask >> 16) & 0xff;
+ v[3] = (chip->events_mask >> 24) & 0xff;
+
+ return __da903x_writes(chip->client, DA9034_IRQ_MASK_A, 4, v);
+}
+
+static int da9034_read_events(struct da903x_chip *chip, unsigned int *events)
+{
+ uint8_t v[4] = {0, 0, 0, 0};
+ int ret;
+
+ ret = __da903x_reads(chip->client, DA9034_EVENT_A, 4, v);
+ if (ret < 0)
+ return ret;
+
+ *events = (v[3] << 24) | (v[2] << 16) | (v[1] << 8) | v[0];
+ return 0;
+}
+
+static int da9034_read_status(struct da903x_chip *chip, unsigned int *status)
+{
+ uint8_t v[2] = {0, 0};
+ int ret = 0;
+
+ ret = __da903x_reads(chip->client, DA9034_STATUS_A, 2, v);
+ if (ret)
+ return ret;
+
+ *status = (v[1] << 8) | v[0];
+ return 0;
+}
+
+static void da903x_irq_work(struct work_struct *work)
+{
+ struct da903x_chip *chip =
+ container_of(work, struct da903x_chip, irq_work);
+ unsigned int events = 0;
+
+ while (1) {
+ if (chip->ops->read_events(chip, &events))
+ break;
+
+ events &= ~chip->events_mask;
+ if (events == 0)
+ break;
+
+ blocking_notifier_call_chain(
+ &chip->notifier_list, events, NULL);
+ }
+ enable_irq(chip->client->irq);
+}
+
+static int da903x_irq_handler(int irq, void *data)
+{
+ struct da903x_chip *chip = data;
+
+ disable_irq_nosync(irq);
+ (void)schedule_work(&chip->irq_work);
+
+ return IRQ_HANDLED;
+}
+
+static struct da903x_chip_ops da903x_ops[] = {
+ [0] = {
+ .init_chip = da9030_init_chip,
+ .unmask_events = da9030_unmask_events,
+ .mask_events = da9030_mask_events,
+ .read_events = da9030_read_events,
+ .read_status = da9030_read_status,
+ },
+ [1] = {
+ .init_chip = da9034_init_chip,
+ .unmask_events = da9034_unmask_events,
+ .mask_events = da9034_mask_events,
+ .read_events = da9034_read_events,
+ .read_status = da9034_read_status,
+ }
+};
+
+static const struct i2c_device_id da903x_id_table[] = {
+ { "da9030", 0 },
+ { "da9034", 1 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, da903x_id_table);
+
+static int __devexit __remove_subdev(struct device *dev, void *unused)
+{
+ platform_device_unregister(to_platform_device(dev));
+ return 0;
+}
+
+static int __devexit da903x_remove_subdevs(struct da903x_chip *chip)
+{
+ return device_for_each_child(chip->dev, NULL, __remove_subdev);
+}
+
+static int __devinit da903x_add_subdevs(struct da903x_chip *chip,
+ struct da903x_platform_data *pdata)
+{
+ struct da903x_subdev_info *subdev;
+ struct platform_device *pdev;
+ int i, ret = 0;
+
+ for (i = 0; i < pdata->num_subdevs; i++) {
+ subdev = &pdata->subdevs[i];
+
+ pdev = platform_device_alloc(subdev->name, subdev->id);
+
+ pdev->dev.parent = chip->dev;
+ pdev->dev.platform_data = subdev->platform_data;
+
+ ret = platform_device_add(pdev);
+ if (ret)
+ goto failed;
+ }
+ return 0;
+
+failed:
+ da903x_remove_subdevs(chip);
+ return ret;
+}
+
+static int __devinit da903x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct da903x_platform_data *pdata = client->dev.platform_data;
+ struct da903x_chip *chip;
+ unsigned int tmp;
+ int ret;
+
+ chip = kzalloc(sizeof(struct da903x_chip), GFP_KERNEL);
+ if (chip == NULL)
+ return -ENOMEM;
+
+ chip->client = client;
+ chip->dev = &client->dev;
+ chip->ops = &da903x_ops[id->driver_data];
+
+ mutex_init(&chip->lock);
+ INIT_WORK(&chip->irq_work, da903x_irq_work);
+ BLOCKING_INIT_NOTIFIER_HEAD(&chip->notifier_list);
+
+ i2c_set_clientdata(client, chip);
+
+ ret = chip->ops->init_chip(chip);
+ if (ret)
+ goto out_free_chip;
+
+ /* mask and clear all IRQs */
+ chip->events_mask = 0xffffffff;
+ chip->ops->mask_events(chip, chip->events_mask);
+ chip->ops->read_events(chip, &tmp);
+
+ ret = request_irq(client->irq, da903x_irq_handler,
+ IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+ "da903x", chip);
+ if (ret) {
+ dev_err(&client->dev, "failed to request irq %d\n",
+ client->irq);
+ goto out_free_chip;
+ }
+
+ ret = da903x_add_subdevs(chip, pdata);
+ if (ret)
+ goto out_free_irq;
+
+ return 0;
+
+out_free_irq:
+ free_irq(client->irq, chip);
+out_free_chip:
+ i2c_set_clientdata(client, NULL);
+ kfree(chip);
+ return ret;
+}
+
+static int __devexit da903x_remove(struct i2c_client *client)
+{
+ struct da903x_chip *chip = i2c_get_clientdata(client);
+
+ da903x_remove_subdevs(chip);
+ kfree(chip);
+ return 0;
+}
+
+static struct i2c_driver da903x_driver = {
+ .driver = {
+ .name = "da903x",
+ .owner = THIS_MODULE,
+ },
+ .probe = da903x_probe,
+ .remove = __devexit_p(da903x_remove),
+ .id_table = da903x_id_table,
+};
+
+static int __init da903x_init(void)
+{
+ return i2c_add_driver(&da903x_driver);
+}
+module_init(da903x_init);
+
+static void __exit da903x_exit(void)
+{
+ i2c_del_driver(&da903x_driver);
+}
+module_exit(da903x_exit);
+
+MODULE_DESCRIPTION("PMIC Driver for Dialog Semiconductor DA9034");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
+ "Mike Rapoport <mike@compulab.co.il>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index ad3379fcd194..1a4d04664d6d 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -289,7 +289,7 @@ static int __init egpio_probe(struct platform_device *pdev)
ei->base_addr = ioremap_nocache(res->start, res->end - res->start);
if (!ei->base_addr)
goto fail;
- pr_debug("EGPIO phys=%08x virt=%p\n", res->start, ei->base_addr);
+ pr_debug("EGPIO phys=%08x virt=%p\n", (u32)res->start, ei->base_addr);
if ((pdata->bus_width != 16) && (pdata->bus_width != 32))
goto fail;
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 9c9c126ed334..6c0d1bec4b76 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -20,7 +20,7 @@ static int mfd_add_device(struct device *parent, int id,
struct resource *mem_base,
int irq_base)
{
- struct resource res[cell->num_resources];
+ struct resource *res;
struct platform_device *pdev;
int ret = -ENOMEM;
int r;
@@ -29,14 +29,17 @@ static int mfd_add_device(struct device *parent, int id,
if (!pdev)
goto fail_alloc;
+ res = kzalloc(sizeof(*res) * cell->num_resources, GFP_KERNEL);
+ if (!res)
+ goto fail_device;
+
pdev->dev.parent = parent;
ret = platform_device_add_data(pdev,
cell->platform_data, cell->data_size);
if (ret)
- goto fail_device;
+ goto fail_res;
- memset(res, 0, sizeof(res));
for (r = 0; r < cell->num_resources; r++) {
res[r].name = cell->resources[r].name;
res[r].flags = cell->resources[r].flags;
@@ -64,11 +67,15 @@ static int mfd_add_device(struct device *parent, int id,
ret = platform_device_add(pdev);
if (ret)
- goto fail_device;
+ goto fail_res;
+
+ kfree(res);
return 0;
/* platform_device_del(pdev); */
+fail_res:
+ kfree(res);
fail_device:
platform_device_put(pdev);
fail_alloc:
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 7aebad4c06ff..220e4371266b 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -623,8 +623,8 @@ unsigned long sm501_set_clock(struct device *dev,
sm501_sync_regs(sm);
- dev_info(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n",
- gate, clock, mode);
+ dev_dbg(sm->dev, "gate %08lx, clock %08lx, mode %08lx\n",
+ gate, clock, mode);
sm501_mdelay(sm, 16);
mutex_unlock(&sm->clock_lock);
@@ -742,7 +742,7 @@ static int sm501_register_device(struct sm501_devdata *sm,
int ret;
for (ptr = 0; ptr < pdev->num_resources; ptr++) {
- printk("%s[%d] flags %08lx: %08llx..%08llx\n",
+ printk(KERN_DEBUG "%s[%d] flags %08lx: %08llx..%08llx\n",
pdev->name, ptr,
pdev->resource[ptr].flags,
(unsigned long long)pdev->resource[ptr].start,
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index 49a0fffc02af..9f7024c0f8ec 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -24,8 +24,10 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/err.h>
#include <linux/io.h>
#include <linux/irq.h>
+#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tmio.h>
@@ -56,6 +58,8 @@ struct t7l66xb {
spinlock_t lock;
struct resource rscr;
+ struct clk *clk48m;
+ struct clk *clk32k;
int irq;
int irq_base;
};
@@ -65,13 +69,11 @@ struct t7l66xb {
static int t7l66xb_mmc_enable(struct platform_device *mmc)
{
struct platform_device *dev = to_platform_device(mmc->dev.parent);
- struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
unsigned long flags;
u8 dev_ctl;
- if (pdata->enable_clk32k)
- pdata->enable_clk32k(dev);
+ clk_enable(t7l66xb->clk32k);
spin_lock_irqsave(&t7l66xb->lock, flags);
@@ -87,7 +89,6 @@ static int t7l66xb_mmc_enable(struct platform_device *mmc)
static int t7l66xb_mmc_disable(struct platform_device *mmc)
{
struct platform_device *dev = to_platform_device(mmc->dev.parent);
- struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
unsigned long flags;
u8 dev_ctl;
@@ -100,8 +101,7 @@ static int t7l66xb_mmc_disable(struct platform_device *mmc)
spin_unlock_irqrestore(&t7l66xb->lock, flags);
- if (pdata->disable_clk32k)
- pdata->disable_clk32k(dev);
+ clk_disable(t7l66xb->clk32k);
return 0;
}
@@ -258,18 +258,22 @@ static void t7l66xb_detach_irq(struct platform_device *dev)
#ifdef CONFIG_PM
static int t7l66xb_suspend(struct platform_device *dev, pm_message_t state)
{
+ struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
if (pdata && pdata->suspend)
pdata->suspend(dev);
+ clk_disable(t7l66xb->clk48m);
return 0;
}
static int t7l66xb_resume(struct platform_device *dev)
{
+ struct t7l66xb *t7l66xb = platform_get_drvdata(dev);
struct t7l66xb_platform_data *pdata = dev->dev.platform_data;
+ clk_enable(t7l66xb->clk48m);
if (pdata && pdata->resume)
pdata->resume(dev);
@@ -309,6 +313,19 @@ static int t7l66xb_probe(struct platform_device *dev)
t7l66xb->irq_base = pdata->irq_base;
+ t7l66xb->clk32k = clk_get(&dev->dev, "CLK_CK32K");
+ if (IS_ERR(t7l66xb->clk32k)) {
+ ret = PTR_ERR(t7l66xb->clk32k);
+ goto err_clk32k_get;
+ }
+
+ t7l66xb->clk48m = clk_get(&dev->dev, "CLK_CK48M");
+ if (IS_ERR(t7l66xb->clk48m)) {
+ ret = PTR_ERR(t7l66xb->clk48m);
+ clk_put(t7l66xb->clk32k);
+ goto err_clk48m_get;
+ }
+
rscr = &t7l66xb->rscr;
rscr->name = "t7l66xb-core";
rscr->start = iomem->start;
@@ -325,6 +342,8 @@ static int t7l66xb_probe(struct platform_device *dev)
goto err_ioremap;
}
+ clk_enable(t7l66xb->clk48m);
+
if (pdata && pdata->enable)
pdata->enable(dev);
@@ -359,9 +378,13 @@ static int t7l66xb_probe(struct platform_device *dev)
iounmap(t7l66xb->scr);
err_ioremap:
release_resource(&t7l66xb->rscr);
-err_noirq:
err_request_scr:
kfree(t7l66xb);
+ clk_put(t7l66xb->clk48m);
+err_clk48m_get:
+ clk_put(t7l66xb->clk32k);
+err_clk32k_get:
+err_noirq:
return ret;
}
@@ -372,7 +395,8 @@ static int t7l66xb_remove(struct platform_device *dev)
int ret;
ret = pdata->disable(dev);
-
+ clk_disable(t7l66xb->clk48m);
+ clk_put(t7l66xb->clk48m);
t7l66xb_detach_irq(dev);
iounmap(t7l66xb->scr);
release_resource(&t7l66xb->rscr);
diff --git a/drivers/mfd/tc6387xb.c b/drivers/mfd/tc6387xb.c
index a22b21ac6cf8..43222c12fec1 100644
--- a/drivers/mfd/tc6387xb.c
+++ b/drivers/mfd/tc6387xb.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/clk.h>
#include <linux/err.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tmio.h>
@@ -24,18 +25,22 @@ enum {
#ifdef CONFIG_PM
static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state)
{
- struct tc6387xb_platform_data *pdata = platform_get_drvdata(dev);
+ struct clk *clk32k = platform_get_drvdata(dev);
+ struct tc6387xb_platform_data *pdata = dev->dev.platform_data;
if (pdata && pdata->suspend)
pdata->suspend(dev);
+ clk_disable(clk32k);
return 0;
}
static int tc6387xb_resume(struct platform_device *dev)
{
- struct tc6387xb_platform_data *pdata = platform_get_drvdata(dev);
+ struct clk *clk32k = platform_get_drvdata(dev);
+ struct tc6387xb_platform_data *pdata = dev->dev.platform_data;
+ clk_enable(clk32k);
if (pdata && pdata->resume)
pdata->resume(dev);
@@ -51,10 +56,9 @@ static int tc6387xb_resume(struct platform_device *dev)
static int tc6387xb_mmc_enable(struct platform_device *mmc)
{
struct platform_device *dev = to_platform_device(mmc->dev.parent);
- struct tc6387xb_platform_data *tc6387xb = dev->dev.platform_data;
+ struct clk *clk32k = platform_get_drvdata(dev);
- if (tc6387xb->enable_clk32k)
- tc6387xb->enable_clk32k(dev);
+ clk_enable(clk32k);
return 0;
}
@@ -62,10 +66,9 @@ static int tc6387xb_mmc_enable(struct platform_device *mmc)
static int tc6387xb_mmc_disable(struct platform_device *mmc)
{
struct platform_device *dev = to_platform_device(mmc->dev.parent);
- struct tc6387xb_platform_data *tc6387xb = dev->dev.platform_data;
+ struct clk *clk32k = platform_get_drvdata(dev);
- if (tc6387xb->disable_clk32k)
- tc6387xb->disable_clk32k(dev);
+ clk_disable(clk32k);
return 0;
}
@@ -102,14 +105,14 @@ static struct mfd_cell tc6387xb_cells[] = {
static int tc6387xb_probe(struct platform_device *dev)
{
- struct tc6387xb_platform_data *data = platform_get_drvdata(dev);
+ struct tc6387xb_platform_data *pdata = dev->dev.platform_data;
struct resource *iomem;
+ struct clk *clk32k;
int irq, ret;
iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!iomem) {
- ret = -EINVAL;
- goto err_resource;
+ return -EINVAL;
}
ret = platform_get_irq(dev, 0);
@@ -118,8 +121,15 @@ static int tc6387xb_probe(struct platform_device *dev)
else
goto err_resource;
- if (data && data->enable)
- data->enable(dev);
+ clk32k = clk_get(&dev->dev, "CLK_CK32K");
+ if (IS_ERR(clk32k)) {
+ ret = PTR_ERR(clk32k);
+ goto err_resource;
+ }
+ platform_set_drvdata(dev, clk32k);
+
+ if (pdata && pdata->enable)
+ pdata->enable(dev);
printk(KERN_INFO "Toshiba tc6387xb initialised\n");
@@ -134,18 +144,19 @@ static int tc6387xb_probe(struct platform_device *dev)
if (!ret)
return 0;
+ clk_put(clk32k);
err_resource:
return ret;
}
static int tc6387xb_remove(struct platform_device *dev)
{
- struct tc6387xb_platform_data *data = platform_get_drvdata(dev);
-
- if (data && data->disable)
- data->disable(dev);
+ struct clk *clk32k = platform_get_drvdata(dev);
- /* FIXME - free the resources! */
+ mfd_remove_devices(&dev->dev);
+ clk_disable(clk32k);
+ clk_put(clk32k);
+ platform_set_drvdata(dev, NULL);
return 0;
}
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index e4c1c788b5f8..f856e9463a9f 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -113,6 +113,8 @@ struct tc6393xb {
enum {
TC6393XB_CELL_NAND,
TC6393XB_CELL_MMC,
+ TC6393XB_CELL_OHCI,
+ TC6393XB_CELL_FB,
};
/*--------------------------------------------------------------------------*/
@@ -170,6 +172,176 @@ static struct resource __devinitdata tc6393xb_mmc_resources[] = {
},
};
+const static struct resource tc6393xb_ohci_resources[] = {
+ {
+ .start = 0x3000,
+ .end = 0x31ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x0300,
+ .end = 0x03ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x010000,
+ .end = 0x017fff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x018000,
+ .end = 0x01ffff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_TC6393_OHCI,
+ .end = IRQ_TC6393_OHCI,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource __devinitdata tc6393xb_fb_resources[] = {
+ {
+ .start = 0x5000,
+ .end = 0x51ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x0500,
+ .end = 0x05ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x100000,
+ .end = 0x1fffff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_TC6393_FB,
+ .end = IRQ_TC6393_FB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static int tc6393xb_ohci_enable(struct platform_device *dev)
+{
+ struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
+ unsigned long flags;
+ u16 ccr;
+ u8 fer;
+
+ spin_lock_irqsave(&tc6393xb->lock, flags);
+
+ ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR);
+ ccr |= SCR_CCR_USBCK;
+ tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR);
+
+ fer = tmio_ioread8(tc6393xb->scr + SCR_FER);
+ fer |= SCR_FER_USBEN;
+ tmio_iowrite8(fer, tc6393xb->scr + SCR_FER);
+
+ spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+ return 0;
+}
+
+static int tc6393xb_ohci_disable(struct platform_device *dev)
+{
+ struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
+ unsigned long flags;
+ u16 ccr;
+ u8 fer;
+
+ spin_lock_irqsave(&tc6393xb->lock, flags);
+
+ fer = tmio_ioread8(tc6393xb->scr + SCR_FER);
+ fer &= ~SCR_FER_USBEN;
+ tmio_iowrite8(fer, tc6393xb->scr + SCR_FER);
+
+ ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR);
+ ccr &= ~SCR_CCR_USBCK;
+ tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR);
+
+ spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+ return 0;
+}
+
+static int tc6393xb_fb_enable(struct platform_device *dev)
+{
+ struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
+ unsigned long flags;
+ u16 ccr;
+
+ spin_lock_irqsave(&tc6393xb->lock, flags);
+
+ ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR);
+ ccr &= ~SCR_CCR_MCLK_MASK;
+ ccr |= SCR_CCR_MCLK_48;
+ tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR);
+
+ spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+ return 0;
+}
+
+static int tc6393xb_fb_disable(struct platform_device *dev)
+{
+ struct tc6393xb *tc6393xb = dev_get_drvdata(dev->dev.parent);
+ unsigned long flags;
+ u16 ccr;
+
+ spin_lock_irqsave(&tc6393xb->lock, flags);
+
+ ccr = tmio_ioread16(tc6393xb->scr + SCR_CCR);
+ ccr &= ~SCR_CCR_MCLK_MASK;
+ ccr |= SCR_CCR_MCLK_OFF;
+ tmio_iowrite16(ccr, tc6393xb->scr + SCR_CCR);
+
+ spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+ return 0;
+}
+
+int tc6393xb_lcd_set_power(struct platform_device *fb, bool on)
+{
+ struct platform_device *dev = to_platform_device(fb->dev.parent);
+ struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
+ u8 fer;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tc6393xb->lock, flags);
+
+ fer = ioread8(tc6393xb->scr + SCR_FER);
+ if (on)
+ fer |= SCR_FER_SLCDEN;
+ else
+ fer &= ~SCR_FER_SLCDEN;
+ iowrite8(fer, tc6393xb->scr + SCR_FER);
+
+ spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(tc6393xb_lcd_set_power);
+
+int tc6393xb_lcd_mode(struct platform_device *fb,
+ const struct fb_videomode *mode) {
+ struct platform_device *dev = to_platform_device(fb->dev.parent);
+ struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&tc6393xb->lock, flags);
+
+ iowrite16(mode->pixclock, tc6393xb->scr + SCR_PLL1CR + 0);
+ iowrite16(mode->pixclock >> 16, tc6393xb->scr + SCR_PLL1CR + 2);
+
+ spin_unlock_irqrestore(&tc6393xb->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(tc6393xb_lcd_mode);
+
static struct mfd_cell __devinitdata tc6393xb_cells[] = {
[TC6393XB_CELL_NAND] = {
.name = "tmio-nand",
@@ -182,6 +354,24 @@ static struct mfd_cell __devinitdata tc6393xb_cells[] = {
.num_resources = ARRAY_SIZE(tc6393xb_mmc_resources),
.resources = tc6393xb_mmc_resources,
},
+ [TC6393XB_CELL_OHCI] = {
+ .name = "tmio-ohci",
+ .num_resources = ARRAY_SIZE(tc6393xb_ohci_resources),
+ .resources = tc6393xb_ohci_resources,
+ .enable = tc6393xb_ohci_enable,
+ .suspend = tc6393xb_ohci_disable,
+ .resume = tc6393xb_ohci_enable,
+ .disable = tc6393xb_ohci_disable,
+ },
+ [TC6393XB_CELL_FB] = {
+ .name = "tmio-fb",
+ .num_resources = ARRAY_SIZE(tc6393xb_fb_resources),
+ .resources = tc6393xb_fb_resources,
+ .enable = tc6393xb_fb_enable,
+ .suspend = tc6393xb_fb_disable,
+ .resume = tc6393xb_fb_enable,
+ .disable = tc6393xb_fb_disable,
+ },
};
/*--------------------------------------------------------------------------*/
@@ -369,41 +559,12 @@ static void tc6393xb_detach_irq(struct platform_device *dev)
/*--------------------------------------------------------------------------*/
-static int tc6393xb_hw_init(struct platform_device *dev)
-{
- struct tc6393xb_platform_data *tcpd = dev->dev.platform_data;
- struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
- int i;
-
- iowrite8(tc6393xb->suspend_state.fer, tc6393xb->scr + SCR_FER);
- iowrite16(tcpd->scr_pll2cr, tc6393xb->scr + SCR_PLL2CR);
- iowrite16(tc6393xb->suspend_state.ccr, tc6393xb->scr + SCR_CCR);
- iowrite16(SCR_MCR_RDY_OPENDRAIN | SCR_MCR_RDY_UNK | SCR_MCR_RDY_EN |
- SCR_MCR_INT_OPENDRAIN | SCR_MCR_INT_UNK | SCR_MCR_INT_EN |
- BIT(15), tc6393xb->scr + SCR_MCR);
- iowrite16(tcpd->scr_gper, tc6393xb->scr + SCR_GPER);
- iowrite8(0, tc6393xb->scr + SCR_IRR);
- iowrite8(0xbf, tc6393xb->scr + SCR_IMR);
-
- for (i = 0; i < 3; i++) {
- iowrite8(tc6393xb->suspend_state.gpo_dsr[i],
- tc6393xb->scr + SCR_GPO_DSR(i));
- iowrite8(tc6393xb->suspend_state.gpo_doecr[i],
- tc6393xb->scr + SCR_GPO_DOECR(i));
- iowrite8(tc6393xb->suspend_state.gpi_bcr[i],
- tc6393xb->scr + SCR_GPI_BCR(i));
- }
-
- return 0;
-}
-
static int __devinit tc6393xb_probe(struct platform_device *dev)
{
struct tc6393xb_platform_data *tcpd = dev->dev.platform_data;
struct tc6393xb *tc6393xb;
struct resource *iomem, *rscr;
int ret, temp;
- int i;
iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!iomem)
@@ -458,21 +619,16 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
if (ret)
goto err_enable;
- tc6393xb->suspend_state.fer = 0;
-
- for (i = 0; i < 3; i++) {
- tc6393xb->suspend_state.gpo_dsr[i] =
- (tcpd->scr_gpo_dsr >> (8 * i)) & 0xff;
- tc6393xb->suspend_state.gpo_doecr[i] =
- (tcpd->scr_gpo_doecr >> (8 * i)) & 0xff;
- }
-
- tc6393xb->suspend_state.ccr = SCR_CCR_UNK1 |
- SCR_CCR_HCLK_48;
-
- ret = tc6393xb_hw_init(dev);
- if (ret)
- goto err_hw_init;
+ iowrite8(0, tc6393xb->scr + SCR_FER);
+ iowrite16(tcpd->scr_pll2cr, tc6393xb->scr + SCR_PLL2CR);
+ iowrite16(SCR_CCR_UNK1 | SCR_CCR_HCLK_48,
+ tc6393xb->scr + SCR_CCR);
+ iowrite16(SCR_MCR_RDY_OPENDRAIN | SCR_MCR_RDY_UNK | SCR_MCR_RDY_EN |
+ SCR_MCR_INT_OPENDRAIN | SCR_MCR_INT_UNK | SCR_MCR_INT_EN |
+ BIT(15), tc6393xb->scr + SCR_MCR);
+ iowrite16(tcpd->scr_gper, tc6393xb->scr + SCR_GPER);
+ iowrite8(0, tc6393xb->scr + SCR_IRR);
+ iowrite8(0xbf, tc6393xb->scr + SCR_IMR);
printk(KERN_INFO "Toshiba tc6393xb revision %d at 0x%08lx, irq %d\n",
tmio_ioread8(tc6393xb->scr + SCR_REVID),
@@ -488,16 +644,33 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
tc6393xb_attach_irq(dev);
+ if (tcpd->setup) {
+ ret = tcpd->setup(dev);
+ if (ret)
+ goto err_setup;
+ }
+
tc6393xb_cells[TC6393XB_CELL_NAND].driver_data = tcpd->nand_data;
tc6393xb_cells[TC6393XB_CELL_NAND].platform_data =
&tc6393xb_cells[TC6393XB_CELL_NAND];
tc6393xb_cells[TC6393XB_CELL_NAND].data_size =
sizeof(tc6393xb_cells[TC6393XB_CELL_NAND]);
+
tc6393xb_cells[TC6393XB_CELL_MMC].platform_data =
&tc6393xb_cells[TC6393XB_CELL_MMC];
tc6393xb_cells[TC6393XB_CELL_MMC].data_size =
sizeof(tc6393xb_cells[TC6393XB_CELL_MMC]);
+ tc6393xb_cells[TC6393XB_CELL_OHCI].platform_data =
+ &tc6393xb_cells[TC6393XB_CELL_OHCI];
+ tc6393xb_cells[TC6393XB_CELL_OHCI].data_size =
+ sizeof(tc6393xb_cells[TC6393XB_CELL_OHCI]);
+
+ tc6393xb_cells[TC6393XB_CELL_FB].driver_data = tcpd->fb_data;
+ tc6393xb_cells[TC6393XB_CELL_FB].platform_data =
+ &tc6393xb_cells[TC6393XB_CELL_FB];
+ tc6393xb_cells[TC6393XB_CELL_FB].data_size =
+ sizeof(tc6393xb_cells[TC6393XB_CELL_FB]);
ret = mfd_add_devices(&dev->dev, dev->id,
tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),
@@ -506,12 +679,15 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
if (!ret)
return 0;
+ if (tcpd->teardown)
+ tcpd->teardown(dev);
+
+err_setup:
tc6393xb_detach_irq(dev);
err_gpio_add:
if (tc6393xb->gpio.base != -1)
temp = gpiochip_remove(&tc6393xb->gpio);
-err_hw_init:
tcpd->disable(dev);
err_clk_enable:
clk_disable(tc6393xb->clk);
@@ -535,6 +711,10 @@ static int __devexit tc6393xb_remove(struct platform_device *dev)
int ret;
mfd_remove_devices(&dev->dev);
+
+ if (tcpd->teardown)
+ tcpd->teardown(dev);
+
tc6393xb_detach_irq(dev);
if (tc6393xb->gpio.base != -1) {
@@ -585,15 +765,37 @@ static int tc6393xb_resume(struct platform_device *dev)
struct tc6393xb_platform_data *tcpd = dev->dev.platform_data;
struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
int ret;
+ int i;
clk_enable(tc6393xb->clk);
ret = tcpd->resume(dev);
-
if (ret)
return ret;
- return tc6393xb_hw_init(dev);
+ if (!tcpd->resume_restore)
+ return 0;
+
+ iowrite8(tc6393xb->suspend_state.fer, tc6393xb->scr + SCR_FER);
+ iowrite16(tcpd->scr_pll2cr, tc6393xb->scr + SCR_PLL2CR);
+ iowrite16(tc6393xb->suspend_state.ccr, tc6393xb->scr + SCR_CCR);
+ iowrite16(SCR_MCR_RDY_OPENDRAIN | SCR_MCR_RDY_UNK | SCR_MCR_RDY_EN |
+ SCR_MCR_INT_OPENDRAIN | SCR_MCR_INT_UNK | SCR_MCR_INT_EN |
+ BIT(15), tc6393xb->scr + SCR_MCR);
+ iowrite16(tcpd->scr_gper, tc6393xb->scr + SCR_GPER);
+ iowrite8(0, tc6393xb->scr + SCR_IRR);
+ iowrite8(0xbf, tc6393xb->scr + SCR_IMR);
+
+ for (i = 0; i < 3; i++) {
+ iowrite8(tc6393xb->suspend_state.gpo_dsr[i],
+ tc6393xb->scr + SCR_GPO_DSR(i));
+ iowrite8(tc6393xb->suspend_state.gpo_doecr[i],
+ tc6393xb->scr + SCR_GPO_DOECR(i));
+ iowrite8(tc6393xb->suspend_state.gpi_bcr[i],
+ tc6393xb->scr + SCR_GPI_BCR(i));
+ }
+
+ return 0;
}
#else
#define tc6393xb_suspend NULL
diff --git a/drivers/mfd/twl4030-core.c b/drivers/mfd/twl4030-core.c
new file mode 100644
index 000000000000..fd9a0160202c
--- /dev/null
+++ b/drivers/mfd/twl4030-core.c
@@ -0,0 +1,1193 @@
+/*
+ * twl4030_core.c - driver for TWL4030/TPS659x0 PM and audio CODEC devices
+ *
+ * Copyright (C) 2005-2006 Texas Instruments, Inc.
+ *
+ * Modifications to defer interrupt handling to a kernel thread:
+ * Copyright (C) 2006 MontaVista Software, Inc.
+ *
+ * Based on tlv320aic23.c:
+ * Copyright (c) by Kai Svahn <kai.svahn@nokia.com>
+ *
+ * Code cleanup and modifications to IRQ handler.
+ * by syed khasim <x0khasim@ti.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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel_stat.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/random.h>
+#include <linux/kthread.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <linux/i2c.h>
+#include <linux/i2c/twl4030.h>
+
+
+/*
+ * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
+ * Management and System Companion Device" chips originally designed for
+ * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C,
+ * often at around 3 Mbit/sec, including for interrupt handling.
+ *
+ * This driver core provides genirq support for the interrupts emitted,
+ * by the various modules, and exports register access primitives.
+ *
+ * FIXME this driver currently requires use of the first interrupt line
+ * (and associated registers).
+ */
+
+#define DRIVER_NAME "twl4030"
+
+#if defined(CONFIG_TWL4030_BCI_BATTERY) || \
+ defined(CONFIG_TWL4030_BCI_BATTERY_MODULE)
+#define twl_has_bci() true
+#else
+#define twl_has_bci() false
+#endif
+
+#if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE)
+#define twl_has_keypad() true
+#else
+#define twl_has_keypad() false
+#endif
+
+#if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE)
+#define twl_has_gpio() true
+#else
+#define twl_has_gpio() false
+#endif
+
+#if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
+#define twl_has_madc() true
+#else
+#define twl_has_madc() false
+#endif
+
+#if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
+#define twl_has_rtc() true
+#else
+#define twl_has_rtc() false
+#endif
+
+#if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE)
+#define twl_has_usb() true
+#else
+#define twl_has_usb() false
+#endif
+
+static inline void activate_irq(int irq)
+{
+#ifdef CONFIG_ARM
+ /* ARM requires an extra step to clear IRQ_NOREQUEST, which it
+ * sets on behalf of every irq_chip. Also sets IRQ_NOPROBE.
+ */
+ set_irq_flags(irq, IRQF_VALID);
+#else
+ /* same effect on other architectures */
+ set_irq_noprobe(irq);
+#endif
+}
+
+/* Primary Interrupt Handler on TWL4030 Registers */
+
+/* Register Definitions */
+
+#define REG_PIH_ISR_P1 (0x1)
+#define REG_PIH_ISR_P2 (0x2)
+#define REG_PIH_SIR (0x3)
+
+/* Triton Core internal information (BEGIN) */
+
+/* Last - for index max*/
+#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG
+
+#define TWL4030_NUM_SLAVES 4
+
+
+/* Base Address defns for twl4030_map[] */
+
+/* subchip/slave 0 - USB ID */
+#define TWL4030_BASEADD_USB 0x0000
+
+/* subchip/slave 1 - AUD ID */
+#define TWL4030_BASEADD_AUDIO_VOICE 0x0000
+#define TWL4030_BASEADD_GPIO 0x0098
+#define TWL4030_BASEADD_INTBR 0x0085
+#define TWL4030_BASEADD_PIH 0x0080
+#define TWL4030_BASEADD_TEST 0x004C
+
+/* subchip/slave 2 - AUX ID */
+#define TWL4030_BASEADD_INTERRUPTS 0x00B9
+#define TWL4030_BASEADD_LED 0x00EE
+#define TWL4030_BASEADD_MADC 0x0000
+#define TWL4030_BASEADD_MAIN_CHARGE 0x0074
+#define TWL4030_BASEADD_PRECHARGE 0x00AA
+#define TWL4030_BASEADD_PWM0 0x00F8
+#define TWL4030_BASEADD_PWM1 0x00FB
+#define TWL4030_BASEADD_PWMA 0x00EF
+#define TWL4030_BASEADD_PWMB 0x00F1
+#define TWL4030_BASEADD_KEYPAD 0x00D2
+
+/* subchip/slave 3 - POWER ID */
+#define TWL4030_BASEADD_BACKUP 0x0014
+#define TWL4030_BASEADD_INT 0x002E
+#define TWL4030_BASEADD_PM_MASTER 0x0036
+#define TWL4030_BASEADD_PM_RECEIVER 0x005B
+#define TWL4030_BASEADD_RTC 0x001C
+#define TWL4030_BASEADD_SECURED_REG 0x0000
+
+/* Triton Core internal information (END) */
+
+
+/* Few power values */
+#define R_CFG_BOOT 0x05
+#define R_PROTECT_KEY 0x0E
+
+/* access control values for R_PROTECT_KEY */
+#define KEY_UNLOCK1 0xce
+#define KEY_UNLOCK2 0xec
+#define KEY_LOCK 0x00
+
+/* some fields in R_CFG_BOOT */
+#define HFCLK_FREQ_19p2_MHZ (1 << 0)
+#define HFCLK_FREQ_26_MHZ (2 << 0)
+#define HFCLK_FREQ_38p4_MHZ (3 << 0)
+#define HIGH_PERF_SQ (1 << 3)
+
+
+/*----------------------------------------------------------------------*/
+
+/**
+ * struct twl4030_mod_iregs - TWL module IMR/ISR regs to mask/clear at init
+ * @mod_no: TWL4030 module number (e.g., TWL4030_MODULE_GPIO)
+ * @sih_ctrl: address of module SIH_CTRL register
+ * @reg_cnt: number of IMR/ISR regs
+ * @imrs: pointer to array of TWL module interrupt mask register indices
+ * @isrs: pointer to array of TWL module interrupt status register indices
+ *
+ * Ties together TWL4030 modules and lists of IMR/ISR registers to mask/clear
+ * during twl_init_irq().
+ */
+struct twl4030_mod_iregs {
+ const u8 mod_no;
+ const u8 sih_ctrl;
+ const u8 reg_cnt;
+ const u8 *imrs;
+ const u8 *isrs;
+};
+
+/* TWL4030 INT module interrupt mask registers */
+static const u8 __initconst twl4030_int_imr_regs[] = {
+ TWL4030_INT_PWR_IMR1,
+ TWL4030_INT_PWR_IMR2,
+};
+
+/* TWL4030 INT module interrupt status registers */
+static const u8 __initconst twl4030_int_isr_regs[] = {
+ TWL4030_INT_PWR_ISR1,
+ TWL4030_INT_PWR_ISR2,
+};
+
+/* TWL4030 INTERRUPTS module interrupt mask registers */
+static const u8 __initconst twl4030_interrupts_imr_regs[] = {
+ TWL4030_INTERRUPTS_BCIIMR1A,
+ TWL4030_INTERRUPTS_BCIIMR1B,
+ TWL4030_INTERRUPTS_BCIIMR2A,
+ TWL4030_INTERRUPTS_BCIIMR2B,
+};
+
+/* TWL4030 INTERRUPTS module interrupt status registers */
+static const u8 __initconst twl4030_interrupts_isr_regs[] = {
+ TWL4030_INTERRUPTS_BCIISR1A,
+ TWL4030_INTERRUPTS_BCIISR1B,
+ TWL4030_INTERRUPTS_BCIISR2A,
+ TWL4030_INTERRUPTS_BCIISR2B,
+};
+
+/* TWL4030 MADC module interrupt mask registers */
+static const u8 __initconst twl4030_madc_imr_regs[] = {
+ TWL4030_MADC_IMR1,
+ TWL4030_MADC_IMR2,
+};
+
+/* TWL4030 MADC module interrupt status registers */
+static const u8 __initconst twl4030_madc_isr_regs[] = {
+ TWL4030_MADC_ISR1,
+ TWL4030_MADC_ISR2,
+};
+
+/* TWL4030 keypad module interrupt mask registers */
+static const u8 __initconst twl4030_keypad_imr_regs[] = {
+ TWL4030_KEYPAD_KEYP_IMR1,
+ TWL4030_KEYPAD_KEYP_IMR2,
+};
+
+/* TWL4030 keypad module interrupt status registers */
+static const u8 __initconst twl4030_keypad_isr_regs[] = {
+ TWL4030_KEYPAD_KEYP_ISR1,
+ TWL4030_KEYPAD_KEYP_ISR2,
+};
+
+/* TWL4030 GPIO module interrupt mask registers */
+static const u8 __initconst twl4030_gpio_imr_regs[] = {
+ REG_GPIO_IMR1A,
+ REG_GPIO_IMR1B,
+ REG_GPIO_IMR2A,
+ REG_GPIO_IMR2B,
+ REG_GPIO_IMR3A,
+ REG_GPIO_IMR3B,
+};
+
+/* TWL4030 GPIO module interrupt status registers */
+static const u8 __initconst twl4030_gpio_isr_regs[] = {
+ REG_GPIO_ISR1A,
+ REG_GPIO_ISR1B,
+ REG_GPIO_ISR2A,
+ REG_GPIO_ISR2B,
+ REG_GPIO_ISR3A,
+ REG_GPIO_ISR3B,
+};
+
+/* TWL4030 modules that have IMR/ISR registers that must be masked/cleared */
+static const struct twl4030_mod_iregs __initconst twl4030_mod_regs[] = {
+ {
+ .mod_no = TWL4030_MODULE_INT,
+ .sih_ctrl = TWL4030_INT_PWR_SIH_CTRL,
+ .reg_cnt = ARRAY_SIZE(twl4030_int_imr_regs),
+ .imrs = twl4030_int_imr_regs,
+ .isrs = twl4030_int_isr_regs,
+ },
+ {
+ .mod_no = TWL4030_MODULE_INTERRUPTS,
+ .sih_ctrl = TWL4030_INTERRUPTS_BCISIHCTRL,
+ .reg_cnt = ARRAY_SIZE(twl4030_interrupts_imr_regs),
+ .imrs = twl4030_interrupts_imr_regs,
+ .isrs = twl4030_interrupts_isr_regs,
+ },
+ {
+ .mod_no = TWL4030_MODULE_MADC,
+ .sih_ctrl = TWL4030_MADC_SIH_CTRL,
+ .reg_cnt = ARRAY_SIZE(twl4030_madc_imr_regs),
+ .imrs = twl4030_madc_imr_regs,
+ .isrs = twl4030_madc_isr_regs,
+ },
+ {
+ .mod_no = TWL4030_MODULE_KEYPAD,
+ .sih_ctrl = TWL4030_KEYPAD_KEYP_SIH_CTRL,
+ .reg_cnt = ARRAY_SIZE(twl4030_keypad_imr_regs),
+ .imrs = twl4030_keypad_imr_regs,
+ .isrs = twl4030_keypad_isr_regs,
+ },
+ {
+ .mod_no = TWL4030_MODULE_GPIO,
+ .sih_ctrl = REG_GPIO_SIH_CTRL,
+ .reg_cnt = ARRAY_SIZE(twl4030_gpio_imr_regs),
+ .imrs = twl4030_gpio_imr_regs,
+ .isrs = twl4030_gpio_isr_regs,
+ },
+};
+
+/*----------------------------------------------------------------*/
+
+/* is driver active, bound to a chip? */
+static bool inuse;
+
+/* Structure for each TWL4030 Slave */
+struct twl4030_client {
+ struct i2c_client *client;
+ u8 address;
+
+ /* max numb of i2c_msg required is for read =2 */
+ struct i2c_msg xfer_msg[2];
+
+ /* To lock access to xfer_msg */
+ struct mutex xfer_lock;
+};
+
+static struct twl4030_client twl4030_modules[TWL4030_NUM_SLAVES];
+
+
+/* mapping the module id to slave id and base address */
+struct twl4030mapping {
+ unsigned char sid; /* Slave ID */
+ unsigned char base; /* base address */
+};
+
+static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
+ /*
+ * NOTE: don't change this table without updating the
+ * <linux/i2c/twl4030.h> defines for TWL4030_MODULE_*
+ * so they continue to match the order in this table.
+ */
+
+ { 0, TWL4030_BASEADD_USB },
+
+ { 1, TWL4030_BASEADD_AUDIO_VOICE },
+ { 1, TWL4030_BASEADD_GPIO },
+ { 1, TWL4030_BASEADD_INTBR },
+ { 1, TWL4030_BASEADD_PIH },
+ { 1, TWL4030_BASEADD_TEST },
+
+ { 2, TWL4030_BASEADD_KEYPAD },
+ { 2, TWL4030_BASEADD_MADC },
+ { 2, TWL4030_BASEADD_INTERRUPTS },
+ { 2, TWL4030_BASEADD_LED },
+ { 2, TWL4030_BASEADD_MAIN_CHARGE },
+ { 2, TWL4030_BASEADD_PRECHARGE },
+ { 2, TWL4030_BASEADD_PWM0 },
+ { 2, TWL4030_BASEADD_PWM1 },
+ { 2, TWL4030_BASEADD_PWMA },
+ { 2, TWL4030_BASEADD_PWMB },
+
+ { 3, TWL4030_BASEADD_BACKUP },
+ { 3, TWL4030_BASEADD_INT },
+ { 3, TWL4030_BASEADD_PM_MASTER },
+ { 3, TWL4030_BASEADD_PM_RECEIVER },
+ { 3, TWL4030_BASEADD_RTC },
+ { 3, TWL4030_BASEADD_SECURED_REG },
+};
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * TWL4030 doesn't have PIH mask, hence dummy function for mask
+ * and unmask of the (eight) interrupts reported at that level ...
+ * masking is only available from SIH (secondary) modules.
+ */
+
+static void twl4030_i2c_ackirq(unsigned int irq)
+{
+}
+
+static void twl4030_i2c_disableint(unsigned int irq)
+{
+}
+
+static void twl4030_i2c_enableint(unsigned int irq)
+{
+}
+
+static struct irq_chip twl4030_irq_chip = {
+ .name = "twl4030",
+ .ack = twl4030_i2c_ackirq,
+ .mask = twl4030_i2c_disableint,
+ .unmask = twl4030_i2c_enableint,
+};
+
+/*----------------------------------------------------------------------*/
+
+/* Exported Functions */
+
+/**
+ * twl4030_i2c_write - Writes a n bit register in TWL4030
+ * @mod_no: module number
+ * @value: an array of num_bytes+1 containing data to write
+ * @reg: register address (just offset will do)
+ * @num_bytes: number of bytes to transfer
+ *
+ * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and
+ * valid data starts at Offset 1.
+ *
+ * Returns the result of operation - 0 is success
+ */
+int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
+{
+ int ret;
+ int sid;
+ struct twl4030_client *twl;
+ struct i2c_msg *msg;
+
+ if (unlikely(mod_no > TWL4030_MODULE_LAST)) {
+ pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
+ return -EPERM;
+ }
+ sid = twl4030_map[mod_no].sid;
+ twl = &twl4030_modules[sid];
+
+ if (unlikely(!inuse)) {
+ pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
+ return -EPERM;
+ }
+ mutex_lock(&twl->xfer_lock);
+ /*
+ * [MSG1]: fill the register address data
+ * fill the data Tx buffer
+ */
+ msg = &twl->xfer_msg[0];
+ msg->addr = twl->address;
+ msg->len = num_bytes + 1;
+ msg->flags = 0;
+ msg->buf = value;
+ /* over write the first byte of buffer with the register address */
+ *value = twl4030_map[mod_no].base + reg;
+ ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
+ mutex_unlock(&twl->xfer_lock);
+
+ /* i2cTransfer returns num messages.translate it pls.. */
+ if (ret >= 0)
+ ret = 0;
+ return ret;
+}
+EXPORT_SYMBOL(twl4030_i2c_write);
+
+/**
+ * twl4030_i2c_read - Reads a n bit register in TWL4030
+ * @mod_no: module number
+ * @value: an array of num_bytes containing data to be read
+ * @reg: register address (just offset will do)
+ * @num_bytes: number of bytes to transfer
+ *
+ * Returns result of operation - num_bytes is success else failure.
+ */
+int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
+{
+ int ret;
+ u8 val;
+ int sid;
+ struct twl4030_client *twl;
+ struct i2c_msg *msg;
+
+ if (unlikely(mod_no > TWL4030_MODULE_LAST)) {
+ pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
+ return -EPERM;
+ }
+ sid = twl4030_map[mod_no].sid;
+ twl = &twl4030_modules[sid];
+
+ if (unlikely(!inuse)) {
+ pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid);
+ return -EPERM;
+ }
+ mutex_lock(&twl->xfer_lock);
+ /* [MSG1] fill the register address data */
+ msg = &twl->xfer_msg[0];
+ msg->addr = twl->address;
+ msg->len = 1;
+ msg->flags = 0; /* Read the register value */
+ val = twl4030_map[mod_no].base + reg;
+ msg->buf = &val;
+ /* [MSG2] fill the data rx buffer */
+ msg = &twl->xfer_msg[1];
+ msg->addr = twl->address;
+ msg->flags = I2C_M_RD; /* Read the register value */
+ msg->len = num_bytes; /* only n bytes */
+ msg->buf = value;
+ ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2);
+ mutex_unlock(&twl->xfer_lock);
+
+ /* i2cTransfer returns num messages.translate it pls.. */
+ if (ret >= 0)
+ ret = 0;
+ return ret;
+}
+EXPORT_SYMBOL(twl4030_i2c_read);
+
+/**
+ * twl4030_i2c_write_u8 - Writes a 8 bit register in TWL4030
+ * @mod_no: module number
+ * @value: the value to be written 8 bit
+ * @reg: register address (just offset will do)
+ *
+ * Returns result of operation - 0 is success
+ */
+int twl4030_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
+{
+
+ /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
+ u8 temp_buffer[2] = { 0 };
+ /* offset 1 contains the data */
+ temp_buffer[1] = value;
+ return twl4030_i2c_write(mod_no, temp_buffer, reg, 1);
+}
+EXPORT_SYMBOL(twl4030_i2c_write_u8);
+
+/**
+ * twl4030_i2c_read_u8 - Reads a 8 bit register from TWL4030
+ * @mod_no: module number
+ * @value: the value read 8 bit
+ * @reg: register address (just offset will do)
+ *
+ * Returns result of operation - 0 is success
+ */
+int twl4030_i2c_read_u8(u8 mod_no, u8 *value, u8 reg)
+{
+ return twl4030_i2c_read(mod_no, value, reg, 1);
+}
+EXPORT_SYMBOL(twl4030_i2c_read_u8);
+
+/*----------------------------------------------------------------------*/
+
+static unsigned twl4030_irq_base;
+
+static struct completion irq_event;
+
+/*
+ * This thread processes interrupts reported by the Primary Interrupt Handler.
+ */
+static int twl4030_irq_thread(void *data)
+{
+ long irq = (long)data;
+ irq_desc_t *desc = irq_desc + irq;
+ static unsigned i2c_errors;
+ const static unsigned max_i2c_errors = 100;
+
+ current->flags |= PF_NOFREEZE;
+
+ while (!kthread_should_stop()) {
+ int ret;
+ int module_irq;
+ u8 pih_isr;
+
+ /* Wait for IRQ, then read PIH irq status (also blocking) */
+ wait_for_completion_interruptible(&irq_event);
+
+ ret = twl4030_i2c_read_u8(TWL4030_MODULE_PIH, &pih_isr,
+ REG_PIH_ISR_P1);
+ if (ret) {
+ pr_warning("%s: I2C error %d reading PIH ISR\n",
+ DRIVER_NAME, ret);
+ if (++i2c_errors >= max_i2c_errors) {
+ printk(KERN_ERR "Maximum I2C error count"
+ " exceeded. Terminating %s.\n",
+ __func__);
+ break;
+ }
+ complete(&irq_event);
+ continue;
+ }
+
+ /* these handlers deal with the relevant SIH irq status */
+ local_irq_disable();
+ for (module_irq = twl4030_irq_base;
+ pih_isr;
+ pih_isr >>= 1, module_irq++) {
+ if (pih_isr & 0x1) {
+ irq_desc_t *d = irq_desc + module_irq;
+
+ d->handle_irq(module_irq, d);
+ }
+ }
+ local_irq_enable();
+
+ desc->chip->unmask(irq);
+ }
+
+ return 0;
+}
+
+/*
+ * do_twl4030_irq() is the desc->handle method for the twl4030 interrupt.
+ * This is a chained interrupt, so there is no desc->action method for it.
+ * Now we need to query the interrupt controller in the twl4030 to determine
+ * which module is generating the interrupt request. However, we can't do i2c
+ * transactions in interrupt context, so we must defer that work to a kernel
+ * thread. All we do here is acknowledge and mask the interrupt and wakeup
+ * the kernel thread.
+ */
+static void do_twl4030_irq(unsigned int irq, irq_desc_t *desc)
+{
+ const unsigned int cpu = smp_processor_id();
+
+ /*
+ * Earlier this was desc->triggered = 1;
+ */
+ desc->status |= IRQ_LEVEL;
+
+ /*
+ * Acknowledge, clear _AND_ disable the interrupt.
+ */
+ desc->chip->ack(irq);
+
+ if (!desc->depth) {
+ kstat_cpu(cpu).irqs[irq]++;
+
+ complete(&irq_event);
+ }
+}
+
+static struct task_struct * __init start_twl4030_irq_thread(long irq)
+{
+ struct task_struct *thread;
+
+ init_completion(&irq_event);
+ thread = kthread_run(twl4030_irq_thread, (void *)irq, "twl4030-irq");
+ if (!thread)
+ pr_err("%s: could not create twl4030 irq %ld thread!\n",
+ DRIVER_NAME, irq);
+
+ return thread;
+}
+
+/*----------------------------------------------------------------------*/
+
+static int add_children(struct twl4030_platform_data *pdata)
+{
+ struct platform_device *pdev = NULL;
+ struct twl4030_client *twl = NULL;
+ int status = 0;
+
+ if (twl_has_bci() && pdata->bci) {
+ twl = &twl4030_modules[3];
+
+ pdev = platform_device_alloc("twl4030_bci", -1);
+ if (!pdev) {
+ pr_debug("%s: can't alloc bci dev\n", DRIVER_NAME);
+ status = -ENOMEM;
+ goto err;
+ }
+
+ if (status == 0) {
+ pdev->dev.parent = &twl->client->dev;
+ status = platform_device_add_data(pdev, pdata->bci,
+ sizeof(*pdata->bci));
+ if (status < 0) {
+ dev_dbg(&twl->client->dev,
+ "can't add bci data, %d\n",
+ status);
+ goto err;
+ }
+ }
+
+ if (status == 0) {
+ struct resource r = {
+ .start = TWL4030_PWRIRQ_CHG_PRES,
+ .flags = IORESOURCE_IRQ,
+ };
+
+ status = platform_device_add_resources(pdev, &r, 1);
+ }
+
+ if (status == 0)
+ status = platform_device_add(pdev);
+
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't create bci dev, %d\n",
+ status);
+ goto err;
+ }
+ }
+
+ if (twl_has_gpio() && pdata->gpio) {
+ twl = &twl4030_modules[1];
+
+ pdev = platform_device_alloc("twl4030_gpio", -1);
+ if (!pdev) {
+ pr_debug("%s: can't alloc gpio dev\n", DRIVER_NAME);
+ status = -ENOMEM;
+ goto err;
+ }
+
+ /* more driver model init */
+ if (status == 0) {
+ pdev->dev.parent = &twl->client->dev;
+ /* device_init_wakeup(&pdev->dev, 1); */
+
+ status = platform_device_add_data(pdev, pdata->gpio,
+ sizeof(*pdata->gpio));
+ if (status < 0) {
+ dev_dbg(&twl->client->dev,
+ "can't add gpio data, %d\n",
+ status);
+ goto err;
+ }
+ }
+
+ /* GPIO module IRQ */
+ if (status == 0) {
+ struct resource r = {
+ .start = pdata->irq_base + 0,
+ .flags = IORESOURCE_IRQ,
+ };
+
+ status = platform_device_add_resources(pdev, &r, 1);
+ }
+
+ if (status == 0)
+ status = platform_device_add(pdev);
+
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't create gpio dev, %d\n",
+ status);
+ goto err;
+ }
+ }
+
+ if (twl_has_keypad() && pdata->keypad) {
+ pdev = platform_device_alloc("twl4030_keypad", -1);
+ if (pdev) {
+ twl = &twl4030_modules[2];
+ pdev->dev.parent = &twl->client->dev;
+ device_init_wakeup(&pdev->dev, 1);
+ status = platform_device_add_data(pdev, pdata->keypad,
+ sizeof(*pdata->keypad));
+ if (status < 0) {
+ dev_dbg(&twl->client->dev,
+ "can't add keypad data, %d\n",
+ status);
+ platform_device_put(pdev);
+ goto err;
+ }
+ status = platform_device_add(pdev);
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't create keypad dev, %d\n",
+ status);
+ goto err;
+ }
+ } else {
+ pr_debug("%s: can't alloc keypad dev\n", DRIVER_NAME);
+ status = -ENOMEM;
+ goto err;
+ }
+ }
+
+ if (twl_has_madc() && pdata->madc) {
+ pdev = platform_device_alloc("twl4030_madc", -1);
+ if (pdev) {
+ twl = &twl4030_modules[2];
+ pdev->dev.parent = &twl->client->dev;
+ device_init_wakeup(&pdev->dev, 1);
+ status = platform_device_add_data(pdev, pdata->madc,
+ sizeof(*pdata->madc));
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't add madc data, %d\n",
+ status);
+ goto err;
+ }
+ status = platform_device_add(pdev);
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't create madc dev, %d\n",
+ status);
+ goto err;
+ }
+ } else {
+ pr_debug("%s: can't alloc madc dev\n", DRIVER_NAME);
+ status = -ENOMEM;
+ goto err;
+ }
+ }
+
+ if (twl_has_rtc()) {
+ twl = &twl4030_modules[3];
+
+ pdev = platform_device_alloc("twl4030_rtc", -1);
+ if (!pdev) {
+ pr_debug("%s: can't alloc rtc dev\n", DRIVER_NAME);
+ status = -ENOMEM;
+ } else {
+ pdev->dev.parent = &twl->client->dev;
+ device_init_wakeup(&pdev->dev, 1);
+ }
+
+ /*
+ * REVISIT platform_data here currently might use of
+ * "msecure" line ... but for now we just expect board
+ * setup to tell the chip "we are secure" at all times.
+ * Eventually, Linux might become more aware of such
+ * HW security concerns, and "least privilege".
+ */
+
+ /* RTC module IRQ */
+ if (status == 0) {
+ struct resource r = {
+ /* REVISIT don't hard-wire this stuff */
+ .start = TWL4030_PWRIRQ_RTC,
+ .flags = IORESOURCE_IRQ,
+ };
+
+ status = platform_device_add_resources(pdev, &r, 1);
+ }
+
+ if (status == 0)
+ status = platform_device_add(pdev);
+
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't create rtc dev, %d\n",
+ status);
+ goto err;
+ }
+ }
+
+ if (twl_has_usb() && pdata->usb) {
+ twl = &twl4030_modules[0];
+
+ pdev = platform_device_alloc("twl4030_usb", -1);
+ if (!pdev) {
+ pr_debug("%s: can't alloc usb dev\n", DRIVER_NAME);
+ status = -ENOMEM;
+ goto err;
+ }
+
+ if (status == 0) {
+ pdev->dev.parent = &twl->client->dev;
+ device_init_wakeup(&pdev->dev, 1);
+ status = platform_device_add_data(pdev, pdata->usb,
+ sizeof(*pdata->usb));
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't add usb data, %d\n",
+ status);
+ goto err;
+ }
+ }
+
+ if (status == 0) {
+ struct resource r = {
+ .start = TWL4030_PWRIRQ_USB_PRES,
+ .flags = IORESOURCE_IRQ,
+ };
+
+ status = platform_device_add_resources(pdev, &r, 1);
+ }
+
+ if (status == 0)
+ status = platform_device_add(pdev);
+
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_dbg(&twl->client->dev,
+ "can't create usb dev, %d\n",
+ status);
+ }
+ }
+
+err:
+ if (status)
+ pr_err("failed to add twl4030's children (status %d)\n", status);
+ return status;
+}
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * These three functions initialize the on-chip clock framework,
+ * letting it generate the right frequencies for USB, MADC, and
+ * other purposes.
+ */
+static inline int __init protect_pm_master(void)
+{
+ int e = 0;
+
+ e = twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_LOCK,
+ R_PROTECT_KEY);
+ return e;
+}
+
+static inline int __init unprotect_pm_master(void)
+{
+ int e = 0;
+
+ e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_UNLOCK1,
+ R_PROTECT_KEY);
+ e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, KEY_UNLOCK2,
+ R_PROTECT_KEY);
+ return e;
+}
+
+static void __init clocks_init(void)
+{
+ int e = 0;
+ struct clk *osc;
+ u32 rate;
+ u8 ctrl = HFCLK_FREQ_26_MHZ;
+
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
+ if (cpu_is_omap2430())
+ osc = clk_get(NULL, "osc_ck");
+ else
+ osc = clk_get(NULL, "osc_sys_ck");
+#else
+ /* REVISIT for non-OMAP systems, pass the clock rate from
+ * board init code, using platform_data.
+ */
+ osc = ERR_PTR(-EIO);
+#endif
+ if (IS_ERR(osc)) {
+ printk(KERN_WARNING "Skipping twl4030 internal clock init and "
+ "using bootloader value (unknown osc rate)\n");
+ return;
+ }
+
+ rate = clk_get_rate(osc);
+ clk_put(osc);
+
+ switch (rate) {
+ case 19200000:
+ ctrl = HFCLK_FREQ_19p2_MHZ;
+ break;
+ case 26000000:
+ ctrl = HFCLK_FREQ_26_MHZ;
+ break;
+ case 38400000:
+ ctrl = HFCLK_FREQ_38p4_MHZ;
+ break;
+ }
+
+ ctrl |= HIGH_PERF_SQ;
+ e |= unprotect_pm_master();
+ /* effect->MADC+USB ck en */
+ e |= twl4030_i2c_write_u8(TWL4030_MODULE_PM_MASTER, ctrl, R_CFG_BOOT);
+ e |= protect_pm_master();
+
+ if (e < 0)
+ pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e);
+}
+
+/*----------------------------------------------------------------------*/
+
+/**
+ * twl4030_i2c_clear_isr - clear TWL4030 SIH ISR regs via read + write
+ * @mod_no: TWL4030 module number
+ * @reg: register index to clear
+ * @cor: value of the <module>_SIH_CTRL.COR bit (1 or 0)
+ *
+ * Either reads (cor == 1) or writes (cor == 0) to a TWL4030 interrupt
+ * status register to ensure that any prior interrupts are cleared.
+ * Returns the status from the I2C read operation.
+ */
+static int __init twl4030_i2c_clear_isr(u8 mod_no, u8 reg, u8 cor)
+{
+ u8 tmp;
+
+ return (cor) ? twl4030_i2c_read_u8(mod_no, &tmp, reg) :
+ twl4030_i2c_write_u8(mod_no, 0xff, reg);
+}
+
+/**
+ * twl4030_read_cor_bit - are TWL module ISRs cleared by reads or writes?
+ * @mod_no: TWL4030 module number
+ * @reg: register index to clear
+ *
+ * Returns 1 if the TWL4030 SIH interrupt status registers (ISRs) for
+ * the specified TWL module are cleared by reads, or 0 if cleared by
+ * writes.
+ */
+static int twl4030_read_cor_bit(u8 mod_no, u8 reg)
+{
+ u8 tmp = 0;
+
+ WARN_ON(twl4030_i2c_read_u8(mod_no, &tmp, reg) < 0);
+
+ tmp &= TWL4030_SIH_CTRL_COR_MASK;
+ tmp >>= __ffs(TWL4030_SIH_CTRL_COR_MASK);
+
+ return tmp;
+}
+
+/**
+ * twl4030_mask_clear_intrs - mask and clear all TWL4030 interrupts
+ * @t: pointer to twl4030_mod_iregs array
+ * @t_sz: ARRAY_SIZE(t) (starting at 1)
+ *
+ * Mask all TWL4030 interrupt mask registers (IMRs) and clear all
+ * interrupt status registers (ISRs). No return value, but will WARN if
+ * any I2C operations fail.
+ */
+static void __init twl4030_mask_clear_intrs(const struct twl4030_mod_iregs *t,
+ const u8 t_sz)
+{
+ int i, j;
+
+ /*
+ * N.B. - further efficiency is possible here. Eight I2C
+ * operations on BCI and GPIO modules are avoidable if I2C
+ * burst read/write transactions were implemented. Would
+ * probably save about 1ms of boot time and a small amount of
+ * power.
+ */
+ for (i = 0; i < t_sz; i++) {
+ const struct twl4030_mod_iregs tmr = t[i];
+ int cor;
+
+ /* Are ISRs cleared by reads or writes? */
+ cor = twl4030_read_cor_bit(tmr.mod_no, tmr.sih_ctrl);
+
+ for (j = 0; j < tmr.reg_cnt; j++) {
+
+ /* Mask interrupts at the TWL4030 */
+ WARN_ON(twl4030_i2c_write_u8(tmr.mod_no, 0xff,
+ tmr.imrs[j]) < 0);
+
+ /* Clear TWL4030 ISRs */
+ WARN_ON(twl4030_i2c_clear_isr(tmr.mod_no,
+ tmr.isrs[j], cor) < 0);
+ }
+ }
+}
+
+
+static void twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
+{
+ int i;
+
+ /*
+ * Mask and clear all TWL4030 interrupts since initially we do
+ * not have any TWL4030 module interrupt handlers present
+ */
+ twl4030_mask_clear_intrs(twl4030_mod_regs,
+ ARRAY_SIZE(twl4030_mod_regs));
+
+ twl4030_irq_base = irq_base;
+
+ /* install an irq handler for each of the PIH modules */
+ for (i = irq_base; i < irq_end; i++) {
+ set_irq_chip_and_handler(i, &twl4030_irq_chip,
+ handle_simple_irq);
+ activate_irq(i);
+ }
+
+ /* install an irq handler to demultiplex the TWL4030 interrupt */
+ set_irq_data(irq_num, start_twl4030_irq_thread(irq_num));
+ set_irq_chained_handler(irq_num, do_twl4030_irq);
+}
+
+/*----------------------------------------------------------------------*/
+
+static int twl4030_remove(struct i2c_client *client)
+{
+ unsigned i;
+
+ /* FIXME undo twl_init_irq() */
+ if (twl4030_irq_base) {
+ dev_err(&client->dev, "can't yet clean up IRQs?\n");
+ return -ENOSYS;
+ }
+
+ for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
+ struct twl4030_client *twl = &twl4030_modules[i];
+
+ if (twl->client && twl->client != client)
+ i2c_unregister_device(twl->client);
+ twl4030_modules[i].client = NULL;
+ }
+ inuse = false;
+ return 0;
+}
+
+/* NOTE: this driver only handles a single twl4030/tps659x0 chip */
+static int
+twl4030_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ int status;
+ unsigned i;
+ struct twl4030_platform_data *pdata = client->dev.platform_data;
+
+ if (!pdata) {
+ dev_dbg(&client->dev, "no platform data?\n");
+ return -EINVAL;
+ }
+
+ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
+ dev_dbg(&client->dev, "can't talk I2C?\n");
+ return -EIO;
+ }
+
+ if (inuse || twl4030_irq_base) {
+ dev_dbg(&client->dev, "driver is already in use\n");
+ return -EBUSY;
+ }
+
+ for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
+ struct twl4030_client *twl = &twl4030_modules[i];
+
+ twl->address = client->addr + i;
+ if (i == 0)
+ twl->client = client;
+ else {
+ twl->client = i2c_new_dummy(client->adapter,
+ twl->address);
+ if (!twl->client) {
+ dev_err(&twl->client->dev,
+ "can't attach client %d\n", i);
+ status = -ENOMEM;
+ goto fail;
+ }
+ strlcpy(twl->client->name, id->name,
+ sizeof(twl->client->name));
+ }
+ mutex_init(&twl->xfer_lock);
+ }
+ inuse = true;
+
+ /* setup clock framework */
+ clocks_init();
+
+ /* Maybe init the T2 Interrupt subsystem */
+ if (client->irq
+ && pdata->irq_base
+ && pdata->irq_end > pdata->irq_base) {
+ twl_init_irq(client->irq, pdata->irq_base, pdata->irq_end);
+ dev_info(&client->dev, "IRQ %d chains IRQs %d..%d\n",
+ client->irq, pdata->irq_base, pdata->irq_end - 1);
+ }
+
+ status = add_children(pdata);
+fail:
+ if (status < 0)
+ twl4030_remove(client);
+ return status;
+}
+
+static const struct i2c_device_id twl4030_ids[] = {
+ { "twl4030", 0 }, /* "Triton 2" */
+ { "tps65950", 0 }, /* catalog version of twl4030 */
+ { "tps65930", 0 }, /* fewer LDOs and DACs; no charger */
+ { "tps65920", 0 }, /* fewer LDOs; no codec or charger */
+ { "twl5030", 0 }, /* T2 updated */
+ { /* end of list */ },
+};
+MODULE_DEVICE_TABLE(i2c, twl4030_ids);
+
+/* One Client Driver , 4 Clients */
+static struct i2c_driver twl4030_driver = {
+ .driver.name = DRIVER_NAME,
+ .id_table = twl4030_ids,
+ .probe = twl4030_probe,
+ .remove = twl4030_remove,
+};
+
+static int __init twl4030_init(void)
+{
+ return i2c_add_driver(&twl4030_driver);
+}
+subsys_initcall(twl4030_init);
+
+static void __exit twl4030_exit(void)
+{
+ i2c_del_driver(&twl4030_driver);
+}
+module_exit(twl4030_exit);
+
+MODULE_AUTHOR("Texas Instruments, Inc.");
+MODULE_DESCRIPTION("I2C Core interface for TWL4030");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 25a7a5d08bce..bf87f675e7fa 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1217,7 +1217,7 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
mutex_init(&wm8350->irq_mutex);
INIT_WORK(&wm8350->irq_work, wm8350_irq_worker);
- if (irq != NO_IRQ) {
+ if (irq) {
ret = request_irq(irq, wm8350_irq, 0,
"wm8350", wm8350);
if (ret != 0) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 08:35:38 +0100