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mfd: Add mc13892 support to mc13xxx

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mc13892 is the companion PMIC for Freescale's i.MX51.  It's similar enough
to mc13782 to support it in a single driver.

This patch introduces enough compatibility cruft to keep all users of the
superseded mc13783 driver unchanged.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Uwe Kleine-König 2010-09-28 16:37:20 +02:00 • committed by Samuel Ortiz
parent b4e017e332
commit 8e00593557
6 changed files with 1108 additions and 877 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/mfd/Kconfig
View file

@ -409,11 +409,16 @@ config MFD_PCF50633
so that function-specific drivers can bind to them. so that function-specific drivers can bind to them.
config MFD_MC13783 config MFD_MC13783
tristate "Support Freescale MC13783" tristate
config MFD_MC13XXX
tristate "Support Freescale MC13783 and MC13892"
depends on SPI_MASTER depends on SPI_MASTER
select MFD_CORE select MFD_CORE
select MFD_MC13783
help help
Support for the Freescale (Atlas) MC13783 PMIC and audio CODEC. Support for the Freescale (Atlas) PMIC and audio CODECs
MC13783 and MC13892.
This driver provides common support for accessing the device, This driver provides common support for accessing the device,
additional drivers must be enabled in order to use the additional drivers must be enabled in order to use the
functionality of the device. functionality of the device.

2
drivers/mfd/Makefile
View file

@ -39,7 +39,7 @@ obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
obj-$(CONFIG_TWL4030_CODEC) += twl4030-codec.o obj-$(CONFIG_TWL4030_CODEC) += twl4030-codec.o
obj-$(CONFIG_TWL6030_PWM) += twl6030-pwm.o obj-$(CONFIG_TWL6030_PWM) += twl6030-pwm.o
obj-$(CONFIG_MFD_MC13783) += mc13783-core.o obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o
obj-$(CONFIG_MFD_CORE) += mfd-core.o obj-$(CONFIG_MFD_CORE) += mfd-core.o

743
drivers/mfd/mc13783-core.c
View file

@ -1,743 +0,0 @@
/*
* Copyright 2009 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* loosely based on an earlier driver that has
* Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* 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/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/spi/spi.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mc13783.h>
struct mc13783 {
struct spi_device *spidev;
struct mutex lock;
int irq;
int adcflags;
irq_handler_t irqhandler[MC13783_NUM_IRQ];
void *irqdata[MC13783_NUM_IRQ];
};
#define MC13783_REG_REVISION 7
#define MC13783_REG_ADC_0 43
#define MC13783_REG_ADC_1 44
#define MC13783_REG_ADC_2 45
#define MC13783_IRQSTAT0 0
#define MC13783_IRQSTAT0_ADCDONEI (1 << 0)
#define MC13783_IRQSTAT0_ADCBISDONEI (1 << 1)
#define MC13783_IRQSTAT0_TSI (1 << 2)
#define MC13783_IRQSTAT0_WHIGHI (1 << 3)
#define MC13783_IRQSTAT0_WLOWI (1 << 4)
#define MC13783_IRQSTAT0_CHGDETI (1 << 6)
#define MC13783_IRQSTAT0_CHGOVI (1 << 7)
#define MC13783_IRQSTAT0_CHGREVI (1 << 8)
#define MC13783_IRQSTAT0_CHGSHORTI (1 << 9)
#define MC13783_IRQSTAT0_CCCVI (1 << 10)
#define MC13783_IRQSTAT0_CHGCURRI (1 << 11)
#define MC13783_IRQSTAT0_BPONI (1 << 12)
#define MC13783_IRQSTAT0_LOBATLI (1 << 13)
#define MC13783_IRQSTAT0_LOBATHI (1 << 14)
#define MC13783_IRQSTAT0_UDPI (1 << 15)
#define MC13783_IRQSTAT0_USBI (1 << 16)
#define MC13783_IRQSTAT0_IDI (1 << 19)
#define MC13783_IRQSTAT0_SE1I (1 << 21)
#define MC13783_IRQSTAT0_CKDETI (1 << 22)
#define MC13783_IRQSTAT0_UDMI (1 << 23)
#define MC13783_IRQMASK0 1
#define MC13783_IRQMASK0_ADCDONEM MC13783_IRQSTAT0_ADCDONEI
#define MC13783_IRQMASK0_ADCBISDONEM MC13783_IRQSTAT0_ADCBISDONEI
#define MC13783_IRQMASK0_TSM MC13783_IRQSTAT0_TSI
#define MC13783_IRQMASK0_WHIGHM MC13783_IRQSTAT0_WHIGHI
#define MC13783_IRQMASK0_WLOWM MC13783_IRQSTAT0_WLOWI
#define MC13783_IRQMASK0_CHGDETM MC13783_IRQSTAT0_CHGDETI
#define MC13783_IRQMASK0_CHGOVM MC13783_IRQSTAT0_CHGOVI
#define MC13783_IRQMASK0_CHGREVM MC13783_IRQSTAT0_CHGREVI
#define MC13783_IRQMASK0_CHGSHORTM MC13783_IRQSTAT0_CHGSHORTI
#define MC13783_IRQMASK0_CCCVM MC13783_IRQSTAT0_CCCVI
#define MC13783_IRQMASK0_CHGCURRM MC13783_IRQSTAT0_CHGCURRI
#define MC13783_IRQMASK0_BPONM MC13783_IRQSTAT0_BPONI
#define MC13783_IRQMASK0_LOBATLM MC13783_IRQSTAT0_LOBATLI
#define MC13783_IRQMASK0_LOBATHM MC13783_IRQSTAT0_LOBATHI
#define MC13783_IRQMASK0_UDPM MC13783_IRQSTAT0_UDPI
#define MC13783_IRQMASK0_USBM MC13783_IRQSTAT0_USBI
#define MC13783_IRQMASK0_IDM MC13783_IRQSTAT0_IDI
#define MC13783_IRQMASK0_SE1M MC13783_IRQSTAT0_SE1I
#define MC13783_IRQMASK0_CKDETM MC13783_IRQSTAT0_CKDETI
#define MC13783_IRQMASK0_UDMM MC13783_IRQSTAT0_UDMI
#define MC13783_IRQSTAT1 3
#define MC13783_IRQSTAT1_1HZI (1 << 0)
#define MC13783_IRQSTAT1_TODAI (1 << 1)
#define MC13783_IRQSTAT1_ONOFD1I (1 << 3)
#define MC13783_IRQSTAT1_ONOFD2I (1 << 4)
#define MC13783_IRQSTAT1_ONOFD3I (1 << 5)
#define MC13783_IRQSTAT1_SYSRSTI (1 << 6)
#define MC13783_IRQSTAT1_RTCRSTI (1 << 7)
#define MC13783_IRQSTAT1_PCI (1 << 8)
#define MC13783_IRQSTAT1_WARMI (1 << 9)
#define MC13783_IRQSTAT1_MEMHLDI (1 << 10)
#define MC13783_IRQSTAT1_PWRRDYI (1 << 11)
#define MC13783_IRQSTAT1_THWARNLI (1 << 12)
#define MC13783_IRQSTAT1_THWARNHI (1 << 13)
#define MC13783_IRQSTAT1_CLKI (1 << 14)
#define MC13783_IRQSTAT1_SEMAFI (1 << 15)
#define MC13783_IRQSTAT1_MC2BI (1 << 17)
#define MC13783_IRQSTAT1_HSDETI (1 << 18)
#define MC13783_IRQSTAT1_HSLI (1 << 19)
#define MC13783_IRQSTAT1_ALSPTHI (1 << 20)
#define MC13783_IRQSTAT1_AHSSHORTI (1 << 21)
#define MC13783_IRQMASK1 4
#define MC13783_IRQMASK1_1HZM MC13783_IRQSTAT1_1HZI
#define MC13783_IRQMASK1_TODAM MC13783_IRQSTAT1_TODAI
#define MC13783_IRQMASK1_ONOFD1M MC13783_IRQSTAT1_ONOFD1I
#define MC13783_IRQMASK1_ONOFD2M MC13783_IRQSTAT1_ONOFD2I
#define MC13783_IRQMASK1_ONOFD3M MC13783_IRQSTAT1_ONOFD3I
#define MC13783_IRQMASK1_SYSRSTM MC13783_IRQSTAT1_SYSRSTI
#define MC13783_IRQMASK1_RTCRSTM MC13783_IRQSTAT1_RTCRSTI
#define MC13783_IRQMASK1_PCM MC13783_IRQSTAT1_PCI
#define MC13783_IRQMASK1_WARMM MC13783_IRQSTAT1_WARMI
#define MC13783_IRQMASK1_MEMHLDM MC13783_IRQSTAT1_MEMHLDI
#define MC13783_IRQMASK1_PWRRDYM MC13783_IRQSTAT1_PWRRDYI
#define MC13783_IRQMASK1_THWARNLM MC13783_IRQSTAT1_THWARNLI
#define MC13783_IRQMASK1_THWARNHM MC13783_IRQSTAT1_THWARNHI
#define MC13783_IRQMASK1_CLKM MC13783_IRQSTAT1_CLKI
#define MC13783_IRQMASK1_SEMAFM MC13783_IRQSTAT1_SEMAFI
#define MC13783_IRQMASK1_MC2BM MC13783_IRQSTAT1_MC2BI
#define MC13783_IRQMASK1_HSDETM MC13783_IRQSTAT1_HSDETI
#define MC13783_IRQMASK1_HSLM MC13783_IRQSTAT1_HSLI
#define MC13783_IRQMASK1_ALSPTHM MC13783_IRQSTAT1_ALSPTHI
#define MC13783_IRQMASK1_AHSSHORTM MC13783_IRQSTAT1_AHSSHORTI
#define MC13783_ADC1 44
#define MC13783_ADC1_ADEN (1 << 0)
#define MC13783_ADC1_RAND (1 << 1)
#define MC13783_ADC1_ADSEL (1 << 3)
#define MC13783_ADC1_ASC (1 << 20)
#define MC13783_ADC1_ADTRIGIGN (1 << 21)
#define MC13783_NUMREGS 0x3f
void mc13783_lock(struct mc13783 *mc13783)
{
if (!mutex_trylock(&mc13783->lock)) {
dev_dbg(&mc13783->spidev->dev, "wait for %s from %pf\n",
__func__, __builtin_return_address(0));
mutex_lock(&mc13783->lock);
}
dev_dbg(&mc13783->spidev->dev, "%s from %pf\n",
__func__, __builtin_return_address(0));
}
EXPORT_SYMBOL(mc13783_lock);
void mc13783_unlock(struct mc13783 *mc13783)
{
dev_dbg(&mc13783->spidev->dev, "%s from %pf\n",
__func__, __builtin_return_address(0));
mutex_unlock(&mc13783->lock);
}
EXPORT_SYMBOL(mc13783_unlock);
#define MC13783_REGOFFSET_SHIFT 25
int mc13783_reg_read(struct mc13783 *mc13783, unsigned int offset, u32 *val)
{
struct spi_transfer t;
struct spi_message m;
int ret;
BUG_ON(!mutex_is_locked(&mc13783->lock));
if (offset > MC13783_NUMREGS)
return -EINVAL;
*val = offset << MC13783_REGOFFSET_SHIFT;
memset(&t, 0, sizeof(t));
t.tx_buf = val;
t.rx_buf = val;
t.len = sizeof(u32);
spi_message_init(&m);
spi_message_add_tail(&t, &m);
ret = spi_sync(mc13783->spidev, &m);
/* error in message.status implies error return from spi_sync */
BUG_ON(!ret && m.status);
if (ret)
return ret;
*val &= 0xffffff;
dev_vdbg(&mc13783->spidev->dev, "[0x%02x] -> 0x%06x\n", offset, *val);
return 0;
}
EXPORT_SYMBOL(mc13783_reg_read);
int mc13783_reg_write(struct mc13783 *mc13783, unsigned int offset, u32 val)
{
u32 buf;
struct spi_transfer t;
struct spi_message m;
int ret;
BUG_ON(!mutex_is_locked(&mc13783->lock));
dev_vdbg(&mc13783->spidev->dev, "[0x%02x] <- 0x%06x\n", offset, val);
if (offset > MC13783_NUMREGS || val > 0xffffff)
return -EINVAL;
buf = 1 << 31 | offset << MC13783_REGOFFSET_SHIFT | val;
memset(&t, 0, sizeof(t));
t.tx_buf = &buf;
t.rx_buf = &buf;
t.len = sizeof(u32);
spi_message_init(&m);
spi_message_add_tail(&t, &m);
ret = spi_sync(mc13783->spidev, &m);
BUG_ON(!ret && m.status);
if (ret)
return ret;
return 0;
}
EXPORT_SYMBOL(mc13783_reg_write);
int mc13783_reg_rmw(struct mc13783 *mc13783, unsigned int offset,
u32 mask, u32 val)
{
int ret;
u32 valread;
BUG_ON(val & ~mask);
ret = mc13783_reg_read(mc13783, offset, &valread);
if (ret)
return ret;
valread = (valread & ~mask) | val;
return mc13783_reg_write(mc13783, offset, valread);
}
EXPORT_SYMBOL(mc13783_reg_rmw);
int mc13783_get_flags(struct mc13783 *mc13783)
{
struct mc13783_platform_data *pdata =
dev_get_platdata(&mc13783->spidev->dev);
return pdata->flags;
}
EXPORT_SYMBOL(mc13783_get_flags);
int mc13783_irq_mask(struct mc13783 *mc13783, int irq)
{
int ret;
unsigned int offmask = irq < 24 ? MC13783_IRQMASK0 : MC13783_IRQMASK1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
u32 mask;
if (irq < 0 || irq >= MC13783_NUM_IRQ)
return -EINVAL;
ret = mc13783_reg_read(mc13783, offmask, &mask);
if (ret)
return ret;
if (mask & irqbit)
/* already masked */
return 0;
return mc13783_reg_write(mc13783, offmask, mask | irqbit);
}
EXPORT_SYMBOL(mc13783_irq_mask);
int mc13783_irq_unmask(struct mc13783 *mc13783, int irq)
{
int ret;
unsigned int offmask = irq < 24 ? MC13783_IRQMASK0 : MC13783_IRQMASK1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
u32 mask;
if (irq < 0 || irq >= MC13783_NUM_IRQ)
return -EINVAL;
ret = mc13783_reg_read(mc13783, offmask, &mask);
if (ret)
return ret;
if (!(mask & irqbit))
/* already unmasked */
return 0;
return mc13783_reg_write(mc13783, offmask, mask & ~irqbit);
}
EXPORT_SYMBOL(mc13783_irq_unmask);
int mc13783_irq_status(struct mc13783 *mc13783, int irq,
int *enabled, int *pending)
{
int ret;
unsigned int offmask = irq < 24 ? MC13783_IRQMASK0 : MC13783_IRQMASK1;
unsigned int offstat = irq < 24 ? MC13783_IRQSTAT0 : MC13783_IRQSTAT1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
if (irq < 0 || irq >= MC13783_NUM_IRQ)
return -EINVAL;
if (enabled) {
u32 mask;
ret = mc13783_reg_read(mc13783, offmask, &mask);
if (ret)
return ret;
*enabled = mask & irqbit;
}
if (pending) {
u32 stat;
ret = mc13783_reg_read(mc13783, offstat, &stat);
if (ret)
return ret;
*pending = stat & irqbit;
}
return 0;
}
EXPORT_SYMBOL(mc13783_irq_status);
int mc13783_irq_ack(struct mc13783 *mc13783, int irq)
{
unsigned int offstat = irq < 24 ? MC13783_IRQSTAT0 : MC13783_IRQSTAT1;
unsigned int val = 1 << (irq < 24 ? irq : irq - 24);
BUG_ON(irq < 0 || irq >= MC13783_NUM_IRQ);
return mc13783_reg_write(mc13783, offstat, val);
}
EXPORT_SYMBOL(mc13783_irq_ack);
int mc13783_irq_request_nounmask(struct mc13783 *mc13783, int irq,
irq_handler_t handler, const char *name, void *dev)
{
BUG_ON(!mutex_is_locked(&mc13783->lock));
BUG_ON(!handler);
if (irq < 0 || irq >= MC13783_NUM_IRQ)
return -EINVAL;
if (mc13783->irqhandler[irq])
return -EBUSY;
mc13783->irqhandler[irq] = handler;
mc13783->irqdata[irq] = dev;
return 0;
}
EXPORT_SYMBOL(mc13783_irq_request_nounmask);
int mc13783_irq_request(struct mc13783 *mc13783, int irq,
irq_handler_t handler, const char *name, void *dev)
{
int ret;
ret = mc13783_irq_request_nounmask(mc13783, irq, handler, name, dev);
if (ret)
return ret;
ret = mc13783_irq_unmask(mc13783, irq);
if (ret) {
mc13783->irqhandler[irq] = NULL;
mc13783->irqdata[irq] = NULL;
return ret;
}
return 0;
}
EXPORT_SYMBOL(mc13783_irq_request);
int mc13783_irq_free(struct mc13783 *mc13783, int irq, void *dev)
{
int ret;
BUG_ON(!mutex_is_locked(&mc13783->lock));
if (irq < 0 || irq >= MC13783_NUM_IRQ || !mc13783->irqhandler[irq] ||
mc13783->irqdata[irq] != dev)
return -EINVAL;
ret = mc13783_irq_mask(mc13783, irq);
if (ret)
return ret;
mc13783->irqhandler[irq] = NULL;
mc13783->irqdata[irq] = NULL;
return 0;
}
EXPORT_SYMBOL(mc13783_irq_free);
static inline irqreturn_t mc13783_irqhandler(struct mc13783 *mc13783, int irq)
{
return mc13783->irqhandler[irq](irq, mc13783->irqdata[irq]);
}
/*
* returns: number of handled irqs or negative error
* locking: holds mc13783->lock
*/
static int mc13783_irq_handle(struct mc13783 *mc13783,
unsigned int offstat, unsigned int offmask, int baseirq)
{
u32 stat, mask;
int ret = mc13783_reg_read(mc13783, offstat, &stat);
int num_handled = 0;
if (ret)
return ret;
ret = mc13783_reg_read(mc13783, offmask, &mask);
if (ret)
return ret;
while (stat & ~mask) {
int irq = __ffs(stat & ~mask);
stat &= ~(1 << irq);
if (likely(mc13783->irqhandler[baseirq + irq])) {
irqreturn_t handled;
handled = mc13783_irqhandler(mc13783, baseirq + irq);
if (handled == IRQ_HANDLED)
num_handled++;
} else {
dev_err(&mc13783->spidev->dev,
"BUG: irq %u but no handler\n",
baseirq + irq);
mask |= 1 << irq;
ret = mc13783_reg_write(mc13783, offmask, mask);
}
}
return num_handled;
}
static irqreturn_t mc13783_irq_thread(int irq, void *data)
{
struct mc13783 *mc13783 = data;
irqreturn_t ret;
int handled = 0;
mc13783_lock(mc13783);
ret = mc13783_irq_handle(mc13783, MC13783_IRQSTAT0,
MC13783_IRQMASK0, MC13783_IRQ_ADCDONE);
if (ret > 0)
handled = 1;
ret = mc13783_irq_handle(mc13783, MC13783_IRQSTAT1,
MC13783_IRQMASK1, MC13783_IRQ_1HZ);
if (ret > 0)
handled = 1;
mc13783_unlock(mc13783);
return IRQ_RETVAL(handled);
}
#define MC13783_ADC1_CHAN0_SHIFT 5
#define MC13783_ADC1_CHAN1_SHIFT 8
struct mc13783_adcdone_data {
struct mc13783 *mc13783;
struct completion done;
};
static irqreturn_t mc13783_handler_adcdone(int irq, void *data)
{
struct mc13783_adcdone_data *adcdone_data = data;
mc13783_irq_ack(adcdone_data->mc13783, irq);
complete_all(&adcdone_data->done);
return IRQ_HANDLED;
}
#define MC13783_ADC_WORKING (1 << 0)
int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
unsigned int channel, unsigned int *sample)
{
u32 adc0, adc1, old_adc0;
int i, ret;
struct mc13783_adcdone_data adcdone_data = {
.mc13783 = mc13783,
};
init_completion(&adcdone_data.done);
dev_dbg(&mc13783->spidev->dev, "%s\n", __func__);
mc13783_lock(mc13783);
if (mc13783->adcflags & MC13783_ADC_WORKING) {
ret = -EBUSY;
goto out;
}
mc13783->adcflags |= MC13783_ADC_WORKING;
mc13783_reg_read(mc13783, MC13783_ADC0, &old_adc0);
adc0 = MC13783_ADC0_ADINC1 | MC13783_ADC0_ADINC2;
adc1 = MC13783_ADC1_ADEN | MC13783_ADC1_ADTRIGIGN | MC13783_ADC1_ASC;
if (channel > 7)
adc1 |= MC13783_ADC1_ADSEL;
switch (mode) {
case MC13783_ADC_MODE_TS:
adc0 |= MC13783_ADC0_ADREFEN | MC13783_ADC0_TSMOD0 |
MC13783_ADC0_TSMOD1;
adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
break;
case MC13783_ADC_MODE_SINGLE_CHAN:
adc0 |= old_adc0 & MC13783_ADC0_TSMOD_MASK;
adc1 |= (channel & 0x7) << MC13783_ADC1_CHAN0_SHIFT;
adc1 |= MC13783_ADC1_RAND;
break;
case MC13783_ADC_MODE_MULT_CHAN:
adc0 |= old_adc0 & MC13783_ADC0_TSMOD_MASK;
adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
break;
default:
mc13783_unlock(mc13783);
return -EINVAL;
}
dev_dbg(&mc13783->spidev->dev, "%s: request irq\n", __func__);
mc13783_irq_request(mc13783, MC13783_IRQ_ADCDONE,
mc13783_handler_adcdone, __func__, &adcdone_data);
mc13783_irq_ack(mc13783, MC13783_IRQ_ADCDONE);
mc13783_reg_write(mc13783, MC13783_REG_ADC_0, adc0);
mc13783_reg_write(mc13783, MC13783_REG_ADC_1, adc1);
mc13783_unlock(mc13783);
ret = wait_for_completion_interruptible_timeout(&adcdone_data.done, HZ);
if (!ret)
ret = -ETIMEDOUT;
mc13783_lock(mc13783);
mc13783_irq_free(mc13783, MC13783_IRQ_ADCDONE, &adcdone_data);
if (ret > 0)
for (i = 0; i < 4; ++i) {
ret = mc13783_reg_read(mc13783,
MC13783_REG_ADC_2, &sample[i]);
if (ret)
break;
}
if (mode == MC13783_ADC_MODE_TS)
/* restore TSMOD */
mc13783_reg_write(mc13783, MC13783_REG_ADC_0, old_adc0);
mc13783->adcflags &= ~MC13783_ADC_WORKING;
out:
mc13783_unlock(mc13783);
return ret;
}
EXPORT_SYMBOL_GPL(mc13783_adc_do_conversion);
static int mc13783_add_subdevice_pdata(struct mc13783 *mc13783,
const char *name, void *pdata, size_t pdata_size)
{
struct mfd_cell cell = {
.name = name,
.platform_data = pdata,
.data_size = pdata_size,
};
return mfd_add_devices(&mc13783->spidev->dev, -1, &cell, 1, NULL, 0);
}
static int mc13783_add_subdevice(struct mc13783 *mc13783, const char *name)
{
return mc13783_add_subdevice_pdata(mc13783, name, NULL, 0);
}
static int mc13783_check_revision(struct mc13783 *mc13783)
{
u32 rev_id, rev1, rev2, finid, icid;
mc13783_reg_read(mc13783, MC13783_REG_REVISION, &rev_id);
rev1 = (rev_id & 0x018) >> 3;
rev2 = (rev_id & 0x007);
icid = (rev_id & 0x01C0) >> 6;
finid = (rev_id & 0x01E00) >> 9;
/* Ver 0.2 is actually 3.2a. Report as 3.2 */
if ((rev1 == 0) && (rev2 == 2))
rev1 = 3;
if (rev1 == 0 || icid != 2) {
dev_err(&mc13783->spidev->dev, "No MC13783 detected.\n");
return -ENODEV;
}
dev_info(&mc13783->spidev->dev,
"MC13783 Rev %d.%d FinVer %x detected\n",
rev1, rev2, finid);
return 0;
}
static int mc13783_probe(struct spi_device *spi)
{
struct mc13783 *mc13783;
struct mc13783_platform_data *pdata = dev_get_platdata(&spi->dev);
int ret;
mc13783 = kzalloc(sizeof(*mc13783), GFP_KERNEL);
if (!mc13783)
return -ENOMEM;
dev_set_drvdata(&spi->dev, mc13783);
spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
spi->bits_per_word = 32;
spi_setup(spi);
mc13783->spidev = spi;
mutex_init(&mc13783->lock);
mc13783_lock(mc13783);
ret = mc13783_check_revision(mc13783);
if (ret)
goto err_revision;
/* mask all irqs */
ret = mc13783_reg_write(mc13783, MC13783_IRQMASK0, 0x00ffffff);
if (ret)
goto err_mask;
ret = mc13783_reg_write(mc13783, MC13783_IRQMASK1, 0x00ffffff);
if (ret)
goto err_mask;
ret = request_threaded_irq(spi->irq, NULL, mc13783_irq_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13783", mc13783);
if (ret) {
err_mask:
err_revision:
mutex_unlock(&mc13783->lock);
dev_set_drvdata(&spi->dev, NULL);
kfree(mc13783);
return ret;
}
mc13783_unlock(mc13783);
if (pdata->flags & MC13783_USE_ADC)
mc13783_add_subdevice(mc13783, "mc13783-adc");
if (pdata->flags & MC13783_USE_CODEC)
mc13783_add_subdevice(mc13783, "mc13783-codec");
if (pdata->flags & MC13783_USE_REGULATOR) {
struct mc13783_regulator_platform_data regulator_pdata = {
.num_regulators = pdata->num_regulators,
.regulators = pdata->regulators,
};
mc13783_add_subdevice_pdata(mc13783, "mc13783-regulator",
&regulator_pdata, sizeof(regulator_pdata));
}
if (pdata->flags & MC13783_USE_RTC)
mc13783_add_subdevice(mc13783, "mc13783-rtc");
if (pdata->flags & MC13783_USE_TOUCHSCREEN)
mc13783_add_subdevice(mc13783, "mc13783-ts");
if (pdata->flags & MC13783_USE_LED)
mc13783_add_subdevice_pdata(mc13783, "mc13783-led",
pdata->leds, sizeof(*pdata->leds));
return 0;
}
static int __devexit mc13783_remove(struct spi_device *spi)
{
struct mc13783 *mc13783 = dev_get_drvdata(&spi->dev);
free_irq(mc13783->spidev->irq, mc13783);
mfd_remove_devices(&spi->dev);
return 0;
}
static struct spi_driver mc13783_driver = {
.driver = {
.name = "mc13783",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = mc13783_probe,
.remove = __devexit_p(mc13783_remove),
};
static int __init mc13783_init(void)
{
return spi_register_driver(&mc13783_driver);
}
subsys_initcall(mc13783_init);
static void __exit mc13783_exit(void)
{
spi_unregister_driver(&mc13783_driver);
}
module_exit(mc13783_exit);
MODULE_DESCRIPTION("Core driver for Freescale MC13783 PMIC");
MODULE_AUTHOR("Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>");
MODULE_LICENSE("GPL v2");

840
drivers/mfd/mc13xxx-core.c Normal file
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@ -0,0 +1,840 @@
/*
* Copyright 2009-2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* loosely based on an earlier driver that has
* Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* 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.
*/
#define DEBUG
#define VERBOSE_DEBUG
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <linux/interrupt.h>
#include <linux/spi/spi.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mc13xxx.h>
struct mc13xxx {
struct spi_device *spidev;
struct mutex lock;
int irq;
irq_handler_t irqhandler[MC13XXX_NUM_IRQ];
void *irqdata[MC13XXX_NUM_IRQ];
};
struct mc13783 {
struct mc13xxx mc13xxx;
int adcflags;
};
struct mc13xxx *mc13783_to_mc13xxx(struct mc13783 *mc13783)
{
return &mc13783->mc13xxx;
}
EXPORT_SYMBOL(mc13783_to_mc13xxx);
#define MC13XXX_IRQSTAT0 0
#define MC13XXX_IRQSTAT0_ADCDONEI (1 << 0)
#define MC13XXX_IRQSTAT0_ADCBISDONEI (1 << 1)
#define MC13XXX_IRQSTAT0_TSI (1 << 2)
#define MC13783_IRQSTAT0_WHIGHI (1 << 3)
#define MC13783_IRQSTAT0_WLOWI (1 << 4)
#define MC13XXX_IRQSTAT0_CHGDETI (1 << 6)
#define MC13783_IRQSTAT0_CHGOVI (1 << 7)
#define MC13XXX_IRQSTAT0_CHGREVI (1 << 8)
#define MC13XXX_IRQSTAT0_CHGSHORTI (1 << 9)
#define MC13XXX_IRQSTAT0_CCCVI (1 << 10)
#define MC13XXX_IRQSTAT0_CHGCURRI (1 << 11)
#define MC13XXX_IRQSTAT0_BPONI (1 << 12)
#define MC13XXX_IRQSTAT0_LOBATLI (1 << 13)
#define MC13XXX_IRQSTAT0_LOBATHI (1 << 14)
#define MC13783_IRQSTAT0_UDPI (1 << 15)
#define MC13783_IRQSTAT0_USBI (1 << 16)
#define MC13783_IRQSTAT0_IDI (1 << 19)
#define MC13783_IRQSTAT0_SE1I (1 << 21)
#define MC13783_IRQSTAT0_CKDETI (1 << 22)
#define MC13783_IRQSTAT0_UDMI (1 << 23)
#define MC13XXX_IRQMASK0 1
#define MC13XXX_IRQMASK0_ADCDONEM MC13XXX_IRQSTAT0_ADCDONEI
#define MC13XXX_IRQMASK0_ADCBISDONEM MC13XXX_IRQSTAT0_ADCBISDONEI
#define MC13XXX_IRQMASK0_TSM MC13XXX_IRQSTAT0_TSI
#define MC13783_IRQMASK0_WHIGHM MC13783_IRQSTAT0_WHIGHI
#define MC13783_IRQMASK0_WLOWM MC13783_IRQSTAT0_WLOWI
#define MC13XXX_IRQMASK0_CHGDETM MC13XXX_IRQSTAT0_CHGDETI
#define MC13783_IRQMASK0_CHGOVM MC13783_IRQSTAT0_CHGOVI
#define MC13XXX_IRQMASK0_CHGREVM MC13XXX_IRQSTAT0_CHGREVI
#define MC13XXX_IRQMASK0_CHGSHORTM MC13XXX_IRQSTAT0_CHGSHORTI
#define MC13XXX_IRQMASK0_CCCVM MC13XXX_IRQSTAT0_CCCVI
#define MC13XXX_IRQMASK0_CHGCURRM MC13XXX_IRQSTAT0_CHGCURRI
#define MC13XXX_IRQMASK0_BPONM MC13XXX_IRQSTAT0_BPONI
#define MC13XXX_IRQMASK0_LOBATLM MC13XXX_IRQSTAT0_LOBATLI
#define MC13XXX_IRQMASK0_LOBATHM MC13XXX_IRQSTAT0_LOBATHI
#define MC13783_IRQMASK0_UDPM MC13783_IRQSTAT0_UDPI
#define MC13783_IRQMASK0_USBM MC13783_IRQSTAT0_USBI
#define MC13783_IRQMASK0_IDM MC13783_IRQSTAT0_IDI
#define MC13783_IRQMASK0_SE1M MC13783_IRQSTAT0_SE1I
#define MC13783_IRQMASK0_CKDETM MC13783_IRQSTAT0_CKDETI
#define MC13783_IRQMASK0_UDMM MC13783_IRQSTAT0_UDMI
#define MC13XXX_IRQSTAT1 3
#define MC13XXX_IRQSTAT1_1HZI (1 << 0)
#define MC13XXX_IRQSTAT1_TODAI (1 << 1)
#define MC13783_IRQSTAT1_ONOFD1I (1 << 3)
#define MC13783_IRQSTAT1_ONOFD2I (1 << 4)
#define MC13783_IRQSTAT1_ONOFD3I (1 << 5)
#define MC13XXX_IRQSTAT1_SYSRSTI (1 << 6)
#define MC13XXX_IRQSTAT1_RTCRSTI (1 << 7)
#define MC13XXX_IRQSTAT1_PCI (1 << 8)
#define MC13XXX_IRQSTAT1_WARMI (1 << 9)
#define MC13XXX_IRQSTAT1_MEMHLDI (1 << 10)
#define MC13783_IRQSTAT1_PWRRDYI (1 << 11)
#define MC13XXX_IRQSTAT1_THWARNLI (1 << 12)
#define MC13XXX_IRQSTAT1_THWARNHI (1 << 13)
#define MC13XXX_IRQSTAT1_CLKI (1 << 14)
#define MC13783_IRQSTAT1_SEMAFI (1 << 15)
#define MC13783_IRQSTAT1_MC2BI (1 << 17)
#define MC13783_IRQSTAT1_HSDETI (1 << 18)
#define MC13783_IRQSTAT1_HSLI (1 << 19)
#define MC13783_IRQSTAT1_ALSPTHI (1 << 20)
#define MC13783_IRQSTAT1_AHSSHORTI (1 << 21)
#define MC13XXX_IRQMASK1 4
#define MC13XXX_IRQMASK1_1HZM MC13XXX_IRQSTAT1_1HZI
#define MC13XXX_IRQMASK1_TODAM MC13XXX_IRQSTAT1_TODAI
#define MC13783_IRQMASK1_ONOFD1M MC13783_IRQSTAT1_ONOFD1I
#define MC13783_IRQMASK1_ONOFD2M MC13783_IRQSTAT1_ONOFD2I
#define MC13783_IRQMASK1_ONOFD3M MC13783_IRQSTAT1_ONOFD3I
#define MC13XXX_IRQMASK1_SYSRSTM MC13XXX_IRQSTAT1_SYSRSTI
#define MC13XXX_IRQMASK1_RTCRSTM MC13XXX_IRQSTAT1_RTCRSTI
#define MC13XXX_IRQMASK1_PCM MC13XXX_IRQSTAT1_PCI
#define MC13XXX_IRQMASK1_WARMM MC13XXX_IRQSTAT1_WARMI
#define MC13XXX_IRQMASK1_MEMHLDM MC13XXX_IRQSTAT1_MEMHLDI
#define MC13783_IRQMASK1_PWRRDYM MC13783_IRQSTAT1_PWRRDYI
#define MC13XXX_IRQMASK1_THWARNLM MC13XXX_IRQSTAT1_THWARNLI
#define MC13XXX_IRQMASK1_THWARNHM MC13XXX_IRQSTAT1_THWARNHI
#define MC13XXX_IRQMASK1_CLKM MC13XXX_IRQSTAT1_CLKI
#define MC13783_IRQMASK1_SEMAFM MC13783_IRQSTAT1_SEMAFI
#define MC13783_IRQMASK1_MC2BM MC13783_IRQSTAT1_MC2BI
#define MC13783_IRQMASK1_HSDETM MC13783_IRQSTAT1_HSDETI
#define MC13783_IRQMASK1_HSLM MC13783_IRQSTAT1_HSLI
#define MC13783_IRQMASK1_ALSPTHM MC13783_IRQSTAT1_ALSPTHI
#define MC13783_IRQMASK1_AHSSHORTM MC13783_IRQSTAT1_AHSSHORTI
#define MC13XXX_REVISION 7
#define MC13XXX_REVISION_REVMETAL (0x07 << 0)
#define MC13XXX_REVISION_REVFULL (0x03 << 3)
#define MC13XXX_REVISION_ICID (0x07 << 6)
#define MC13XXX_REVISION_FIN (0x03 << 9)
#define MC13XXX_REVISION_FAB (0x03 << 11)
#define MC13XXX_REVISION_ICIDCODE (0x3f << 13)
#define MC13783_ADC1 44
#define MC13783_ADC1_ADEN (1 << 0)
#define MC13783_ADC1_RAND (1 << 1)
#define MC13783_ADC1_ADSEL (1 << 3)
#define MC13783_ADC1_ASC (1 << 20)
#define MC13783_ADC1_ADTRIGIGN (1 << 21)
#define MC13783_ADC2 45
#define MC13XXX_NUMREGS 0x3f
void mc13xxx_lock(struct mc13xxx *mc13xxx)
{
if (!mutex_trylock(&mc13xxx->lock)) {
dev_dbg(&mc13xxx->spidev->dev, "wait for %s from %pf\n",
__func__, __builtin_return_address(0));
mutex_lock(&mc13xxx->lock);
}
dev_dbg(&mc13xxx->spidev->dev, "%s from %pf\n",
__func__, __builtin_return_address(0));
}
EXPORT_SYMBOL(mc13xxx_lock);
void mc13xxx_unlock(struct mc13xxx *mc13xxx)
{
dev_dbg(&mc13xxx->spidev->dev, "%s from %pf\n",
__func__, __builtin_return_address(0));
mutex_unlock(&mc13xxx->lock);
}
EXPORT_SYMBOL(mc13xxx_unlock);
#define MC13XXX_REGOFFSET_SHIFT 25
int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val)
{
struct spi_transfer t;
struct spi_message m;
int ret;
BUG_ON(!mutex_is_locked(&mc13xxx->lock));
if (offset > MC13XXX_NUMREGS)
return -EINVAL;
*val = offset << MC13XXX_REGOFFSET_SHIFT;
memset(&t, 0, sizeof(t));
t.tx_buf = val;
t.rx_buf = val;
t.len = sizeof(u32);
spi_message_init(&m);
spi_message_add_tail(&t, &m);
ret = spi_sync(mc13xxx->spidev, &m);
/* error in message.status implies error return from spi_sync */
BUG_ON(!ret && m.status);
if (ret)
return ret;
*val &= 0xffffff;
dev_vdbg(&mc13xxx->spidev->dev, "[0x%02x] -> 0x%06x\n", offset, *val);
return 0;
}
EXPORT_SYMBOL(mc13xxx_reg_read);
int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val)
{
u32 buf;
struct spi_transfer t;
struct spi_message m;
int ret;
BUG_ON(!mutex_is_locked(&mc13xxx->lock));
dev_vdbg(&mc13xxx->spidev->dev, "[0x%02x] <- 0x%06x\n", offset, val);
if (offset > MC13XXX_NUMREGS || val > 0xffffff)
return -EINVAL;
buf = 1 << 31 | offset << MC13XXX_REGOFFSET_SHIFT | val;
memset(&t, 0, sizeof(t));
t.tx_buf = &buf;
t.rx_buf = &buf;
t.len = sizeof(u32);
spi_message_init(&m);
spi_message_add_tail(&t, &m);
ret = spi_sync(mc13xxx->spidev, &m);
BUG_ON(!ret && m.status);
if (ret)
return ret;
return 0;
}
EXPORT_SYMBOL(mc13xxx_reg_write);
int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
u32 mask, u32 val)
{
int ret;
u32 valread;
BUG_ON(val & ~mask);
ret = mc13xxx_reg_read(mc13xxx, offset, &valread);
if (ret)
return ret;
valread = (valread & ~mask) | val;
return mc13xxx_reg_write(mc13xxx, offset, valread);
}
EXPORT_SYMBOL(mc13xxx_reg_rmw);
int mc13xxx_irq_mask(struct mc13xxx *mc13xxx, int irq)
{
int ret;
unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
u32 mask;
if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
return -EINVAL;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
if (mask & irqbit)
/* already masked */
return 0;
return mc13xxx_reg_write(mc13xxx, offmask, mask | irqbit);
}
EXPORT_SYMBOL(mc13xxx_irq_mask);
int mc13xxx_irq_unmask(struct mc13xxx *mc13xxx, int irq)
{
int ret;
unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
u32 mask;
if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
return -EINVAL;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
if (!(mask & irqbit))
/* already unmasked */
return 0;
return mc13xxx_reg_write(mc13xxx, offmask, mask & ~irqbit);
}
EXPORT_SYMBOL(mc13xxx_irq_unmask);
int mc13xxx_irq_status(struct mc13xxx *mc13xxx, int irq,
int *enabled, int *pending)
{
int ret;
unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
unsigned int offstat = irq < 24 ? MC13XXX_IRQSTAT0 : MC13XXX_IRQSTAT1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
return -EINVAL;
if (enabled) {
u32 mask;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
*enabled = mask & irqbit;
}
if (pending) {
u32 stat;
ret = mc13xxx_reg_read(mc13xxx, offstat, &stat);
if (ret)
return ret;
*pending = stat & irqbit;
}
return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_status);
int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq)
{
unsigned int offstat = irq < 24 ? MC13XXX_IRQSTAT0 : MC13XXX_IRQSTAT1;
unsigned int val = 1 << (irq < 24 ? irq : irq - 24);
BUG_ON(irq < 0 || irq >= MC13XXX_NUM_IRQ);
return mc13xxx_reg_write(mc13xxx, offstat, val);
}
EXPORT_SYMBOL(mc13xxx_irq_ack);
int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,
irq_handler_t handler, const char *name, void *dev)
{
BUG_ON(!mutex_is_locked(&mc13xxx->lock));
BUG_ON(!handler);
if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
return -EINVAL;
if (mc13xxx->irqhandler[irq])
return -EBUSY;
mc13xxx->irqhandler[irq] = handler;
mc13xxx->irqdata[irq] = dev;
return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_request_nounmask);
int mc13xxx_irq_request(struct mc13xxx *mc13xxx, int irq,
irq_handler_t handler, const char *name, void *dev)
{
int ret;
ret = mc13xxx_irq_request_nounmask(mc13xxx, irq, handler, name, dev);
if (ret)
return ret;
ret = mc13xxx_irq_unmask(mc13xxx, irq);
if (ret) {
mc13xxx->irqhandler[irq] = NULL;
mc13xxx->irqdata[irq] = NULL;
return ret;
}
return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_request);
int mc13xxx_irq_free(struct mc13xxx *mc13xxx, int irq, void *dev)
{
int ret;
BUG_ON(!mutex_is_locked(&mc13xxx->lock));
if (irq < 0 || irq >= MC13XXX_NUM_IRQ || !mc13xxx->irqhandler[irq] ||
mc13xxx->irqdata[irq] != dev)
return -EINVAL;
ret = mc13xxx_irq_mask(mc13xxx, irq);
if (ret)
return ret;
mc13xxx->irqhandler[irq] = NULL;
mc13xxx->irqdata[irq] = NULL;
return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_free);
static inline irqreturn_t mc13xxx_irqhandler(struct mc13xxx *mc13xxx, int irq)
{
return mc13xxx->irqhandler[irq](irq, mc13xxx->irqdata[irq]);
}
/*
* returns: number of handled irqs or negative error
* locking: holds mc13xxx->lock
*/
static int mc13xxx_irq_handle(struct mc13xxx *mc13xxx,
unsigned int offstat, unsigned int offmask, int baseirq)
{
u32 stat, mask;
int ret = mc13xxx_reg_read(mc13xxx, offstat, &stat);
int num_handled = 0;
if (ret)
return ret;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
while (stat & ~mask) {
int irq = __ffs(stat & ~mask);
stat &= ~(1 << irq);
if (likely(mc13xxx->irqhandler[baseirq + irq])) {
irqreturn_t handled;
handled = mc13xxx_irqhandler(mc13xxx, baseirq + irq);
if (handled == IRQ_HANDLED)
num_handled++;
} else {
dev_err(&mc13xxx->spidev->dev,
"BUG: irq %u but no handler\n",
baseirq + irq);
mask |= 1 << irq;
ret = mc13xxx_reg_write(mc13xxx, offmask, mask);
}
}
return num_handled;
}
static irqreturn_t mc13xxx_irq_thread(int irq, void *data)
{
struct mc13xxx *mc13xxx = data;
irqreturn_t ret;
int handled = 0;
mc13xxx_lock(mc13xxx);
ret = mc13xxx_irq_handle(mc13xxx, MC13XXX_IRQSTAT0,
MC13XXX_IRQMASK0, 0);
if (ret > 0)
handled = 1;
ret = mc13xxx_irq_handle(mc13xxx, MC13XXX_IRQSTAT1,
MC13XXX_IRQMASK1, 24);
if (ret > 0)
handled = 1;
mc13xxx_unlock(mc13xxx);
return IRQ_RETVAL(handled);
}
enum mc13xxx_id {
MC13XXX_ID_MC13783,
MC13XXX_ID_MC13892,
MC13XXX_ID_INVALID,
};
const char *mc13xxx_chipname[] = {
[MC13XXX_ID_MC13783] = "mc13783",
[MC13XXX_ID_MC13892] = "mc13892",
};
#define maskval(reg, mask) (((reg) & (mask)) >> __ffs(mask))
static int mc13xxx_identify(struct mc13xxx *mc13xxx, enum mc13xxx_id *id)
{
u32 icid;
u32 revision;
const char *name;
int ret;
ret = mc13xxx_reg_read(mc13xxx, 46, &icid);
if (ret)
return ret;
icid = (icid >> 6) & 0x7;
switch (icid) {
case 2:
*id = MC13XXX_ID_MC13783;
name = "mc13783";
break;
case 7:
*id = MC13XXX_ID_MC13892;
name = "mc13892";
break;
default:
*id = MC13XXX_ID_INVALID;
break;
}
if (*id == MC13XXX_ID_MC13783 || *id == MC13XXX_ID_MC13892) {
ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision);
if (ret)
return ret;
dev_info(&mc13xxx->spidev->dev, "%s: rev: %d.%d, "
"fin: %d, fab: %d, icid: %d/%d\n",
mc13xxx_chipname[*id],
maskval(revision, MC13XXX_REVISION_REVFULL),
maskval(revision, MC13XXX_REVISION_REVMETAL),
maskval(revision, MC13XXX_REVISION_FIN),
maskval(revision, MC13XXX_REVISION_FAB),
maskval(revision, MC13XXX_REVISION_ICID),
maskval(revision, MC13XXX_REVISION_ICIDCODE));
}
if (*id != MC13XXX_ID_INVALID) {
const struct spi_device_id *devid =
spi_get_device_id(mc13xxx->spidev);
if (!devid || devid->driver_data != *id)
dev_warn(&mc13xxx->spidev->dev, "device id doesn't "
"match auto detection!\n");
}
return 0;
}
static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx)
{
const struct spi_device_id *devid =
spi_get_device_id(mc13xxx->spidev);
if (!devid)
return NULL;
return mc13xxx_chipname[devid->driver_data];
}
#include <linux/mfd/mc13783.h>
int mc13xxx_get_flags(struct mc13xxx *mc13xxx)
{
struct mc13xxx_platform_data *pdata =
dev_get_platdata(&mc13xxx->spidev->dev);
return pdata->flags;
}
EXPORT_SYMBOL(mc13xxx_get_flags);
#define MC13783_ADC1_CHAN0_SHIFT 5
#define MC13783_ADC1_CHAN1_SHIFT 8
struct mc13xxx_adcdone_data {
struct mc13xxx *mc13xxx;
struct completion done;
};
static irqreturn_t mc13783_handler_adcdone(int irq, void *data)
{
struct mc13xxx_adcdone_data *adcdone_data = data;
mc13xxx_irq_ack(adcdone_data->mc13xxx, irq);
complete_all(&adcdone_data->done);
return IRQ_HANDLED;
}
#define MC13783_ADC_WORKING (1 << 0)
int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
unsigned int channel, unsigned int *sample)
{
struct mc13xxx *mc13xxx = &mc13783->mc13xxx;
u32 adc0, adc1, old_adc0;
int i, ret;
struct mc13xxx_adcdone_data adcdone_data = {
.mc13xxx = mc13xxx,
};
init_completion(&adcdone_data.done);
dev_dbg(&mc13xxx->spidev->dev, "%s\n", __func__);
mc13xxx_lock(mc13xxx);
if (mc13783->adcflags & MC13783_ADC_WORKING) {
ret = -EBUSY;
goto out;
}
mc13783->adcflags |= MC13783_ADC_WORKING;
mc13xxx_reg_read(mc13xxx, MC13783_ADC0, &old_adc0);
adc0 = MC13783_ADC0_ADINC1 | MC13783_ADC0_ADINC2;
adc1 = MC13783_ADC1_ADEN | MC13783_ADC1_ADTRIGIGN | MC13783_ADC1_ASC;
if (channel > 7)
adc1 |= MC13783_ADC1_ADSEL;
switch (mode) {
case MC13783_ADC_MODE_TS:
adc0 |= MC13783_ADC0_ADREFEN | MC13783_ADC0_TSMOD0 |
MC13783_ADC0_TSMOD1;
adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
break;
case MC13783_ADC_MODE_SINGLE_CHAN:
adc0 |= old_adc0 & MC13783_ADC0_TSMOD_MASK;
adc1 |= (channel & 0x7) << MC13783_ADC1_CHAN0_SHIFT;
adc1 |= MC13783_ADC1_RAND;
break;
case MC13783_ADC_MODE_MULT_CHAN:
adc0 |= old_adc0 & MC13783_ADC0_TSMOD_MASK;
adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
break;
default:
mc13783_unlock(mc13783);
return -EINVAL;
}
dev_dbg(&mc13783->mc13xxx.spidev->dev, "%s: request irq\n", __func__);
mc13xxx_irq_request(mc13xxx, MC13783_IRQ_ADCDONE,
mc13783_handler_adcdone, __func__, &adcdone_data);
mc13xxx_irq_ack(mc13xxx, MC13783_IRQ_ADCDONE);
mc13xxx_reg_write(mc13xxx, MC13783_ADC0, adc0);
mc13xxx_reg_write(mc13xxx, MC13783_ADC1, adc1);
mc13xxx_unlock(mc13xxx);
ret = wait_for_completion_interruptible_timeout(&adcdone_data.done, HZ);
if (!ret)
ret = -ETIMEDOUT;
mc13xxx_lock(mc13xxx);
mc13xxx_irq_free(mc13xxx, MC13783_IRQ_ADCDONE, &adcdone_data);
if (ret > 0)
for (i = 0; i < 4; ++i) {
ret = mc13xxx_reg_read(mc13xxx,
MC13783_ADC2, &sample[i]);
if (ret)
break;
}
if (mode == MC13783_ADC_MODE_TS)
/* restore TSMOD */
mc13xxx_reg_write(mc13xxx, MC13783_ADC0, old_adc0);
mc13783->adcflags &= ~MC13783_ADC_WORKING;
out:
mc13xxx_unlock(mc13xxx);
return ret;
}
EXPORT_SYMBOL_GPL(mc13783_adc_do_conversion);
static int mc13xxx_add_subdevice_pdata(struct mc13xxx *mc13xxx,
const char *format, void *pdata, size_t pdata_size)
{
char buf[30];
const char *name = mc13xxx_get_chipname(mc13xxx);
struct mfd_cell cell = {
.platform_data = pdata,
.data_size = pdata_size,
};
/* there is no asnprintf in the kernel :-( */
if (snprintf(buf, sizeof(buf), format, name) > sizeof(buf))
return -E2BIG;
cell.name = kmemdup(buf, strlen(buf) + 1, GFP_KERNEL);
if (!cell.name)
return -ENOMEM;
return mfd_add_devices(&mc13xxx->spidev->dev, -1, &cell, 1, NULL, 0);
}
static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format)
{
return mc13xxx_add_subdevice_pdata(mc13xxx, format, NULL, 0);
}
static int mc13xxx_probe(struct spi_device *spi)
{
struct mc13xxx *mc13xxx;
struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev);
enum mc13xxx_id id;
int ret;
mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
if (!mc13xxx)
return -ENOMEM;
dev_set_drvdata(&spi->dev, mc13xxx);
spi->mode = SPI_MODE_0 | SPI_CS_HIGH;
spi->bits_per_word = 32;
spi_setup(spi);
mc13xxx->spidev = spi;
mutex_init(&mc13xxx->lock);
mc13xxx_lock(mc13xxx);
ret = mc13xxx_identify(mc13xxx, &id);
if (ret || id == MC13XXX_ID_INVALID)
goto err_revision;
/* mask all irqs */
ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK0, 0x00ffffff);
if (ret)
goto err_mask;
ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK1, 0x00ffffff);
if (ret)
goto err_mask;
ret = request_threaded_irq(spi->irq, NULL, mc13xxx_irq_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx);
if (ret) {
err_mask:
err_revision:
mutex_unlock(&mc13xxx->lock);
dev_set_drvdata(&spi->dev, NULL);
kfree(mc13xxx);
return ret;
}
mc13xxx_unlock(mc13xxx);
if (pdata->flags & MC13XXX_USE_ADC)
mc13xxx_add_subdevice(mc13xxx, "%s-adc");
if (pdata->flags & MC13XXX_USE_CODEC)
mc13xxx_add_subdevice(mc13xxx, "%s-codec");
if (pdata->flags & MC13XXX_USE_REGULATOR) {
struct mc13xxx_regulator_platform_data regulator_pdata = {
.num_regulators = pdata->num_regulators,
.regulators = pdata->regulators,
};
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
&regulator_pdata, sizeof(regulator_pdata));
}
if (pdata->flags & MC13XXX_USE_RTC)
mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
if (pdata->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice(mc13xxx, "%s-ts");
if (pdata->flags & MC13XXX_USE_LED) {
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
pdata->leds, sizeof(*pdata->leds));
}
return 0;
}
static int __devexit mc13xxx_remove(struct spi_device *spi)
{
struct mc13xxx *mc13xxx = dev_get_drvdata(&spi->dev);
free_irq(mc13xxx->spidev->irq, mc13xxx);
mfd_remove_devices(&spi->dev);
return 0;
}
static const struct spi_device_id mc13xxx_device_id[] = {
{
.name = "mc13783",
.driver_data = MC13XXX_ID_MC13783,
}, {
.name = "mc13892",
.driver_data = MC13XXX_ID_MC13892,
}, {
/* sentinel */
}
};
static struct spi_driver mc13xxx_driver = {
.id_table = mc13xxx_device_id,
.driver = {
.name = "mc13xxx",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = mc13xxx_probe,
.remove = __devexit_p(mc13xxx_remove),
};
static int __init mc13xxx_init(void)
{
return spi_register_driver(&mc13xxx_driver);
}
subsys_initcall(mc13xxx_init);
static void __exit mc13xxx_exit(void)
{
spi_unregister_driver(&mc13xxx_driver);
}
module_exit(mc13xxx_exit);
MODULE_DESCRIPTION("Core driver for Freescale MC13XXX PMIC");
MODULE_AUTHOR("Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>");
MODULE_LICENSE("GPL v2");

237
include/linux/mfd/mc13783.h
View file

@ -1,5 +1,5 @@
/* /*
* Copyright 2009 Pengutronix * Copyright 2009-2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de> * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
* *
* This program is free software; you can redistribute it and/or modify it under * This program is free software; you can redistribute it and/or modify it under
@ -9,31 +9,84 @@
#ifndef __LINUX_MFD_MC13783_H #ifndef __LINUX_MFD_MC13783_H
#define __LINUX_MFD_MC13783_H #define __LINUX_MFD_MC13783_H
#include <linux/interrupt.h> #include <linux/mfd/mc13xxx.h>
struct mc13783; struct mc13783;
void mc13783_lock(struct mc13783 *mc13783); struct mc13xxx *mc13783_to_mc13xxx(struct mc13783 *mc13783);
void mc13783_unlock(struct mc13783 *mc13783);
int mc13783_reg_read(struct mc13783 *mc13783, unsigned int offset, u32 *val); static inline void mc13783_lock(struct mc13783 *mc13783)
int mc13783_reg_write(struct mc13783 *mc13783, unsigned int offset, u32 val); {
int mc13783_reg_rmw(struct mc13783 *mc13783, unsigned int offset, mc13xxx_lock(mc13783_to_mc13xxx(mc13783));
u32 mask, u32 val); }
int mc13783_get_flags(struct mc13783 *mc13783); static inline void mc13783_unlock(struct mc13783 *mc13783)
{
mc13xxx_unlock(mc13783_to_mc13xxx(mc13783));
}
int mc13783_irq_request(struct mc13783 *mc13783, int irq, static inline int mc13783_reg_read(struct mc13783 *mc13783,
irq_handler_t handler, const char *name, void *dev); unsigned int offset, u32 *val)
int mc13783_irq_request_nounmask(struct mc13783 *mc13783, int irq, {
irq_handler_t handler, const char *name, void *dev); return mc13xxx_reg_read(mc13783_to_mc13xxx(mc13783), offset, val);
int mc13783_irq_free(struct mc13783 *mc13783, int irq, void *dev); }
int mc13783_irq_mask(struct mc13783 *mc13783, int irq); static inline int mc13783_reg_write(struct mc13783 *mc13783,
int mc13783_irq_unmask(struct mc13783 *mc13783, int irq); unsigned int offset, u32 val)
int mc13783_irq_status(struct mc13783 *mc13783, int irq, {
int *enabled, int *pending); return mc13xxx_reg_write(mc13783_to_mc13xxx(mc13783), offset, val);
int mc13783_irq_ack(struct mc13783 *mc13783, int irq); }
static inline int mc13783_reg_rmw(struct mc13783 *mc13783,
unsigned int offset, u32 mask, u32 val)
{
return mc13xxx_reg_rmw(mc13783_to_mc13xxx(mc13783), offset, mask, val);
}
static inline int mc13783_get_flags(struct mc13783 *mc13783)
{
return mc13xxx_get_flags(mc13783_to_mc13xxx(mc13783));
}
static inline int mc13783_irq_request(struct mc13783 *mc13783, int irq,
irq_handler_t handler, const char *name, void *dev)
{
return mc13xxx_irq_request(mc13783_to_mc13xxx(mc13783), irq,
handler, name, dev);
}
static inline int mc13783_irq_request_nounmask(struct mc13783 *mc13783, int irq,
irq_handler_t handler, const char *name, void *dev)
{
return mc13xxx_irq_request_nounmask(mc13783_to_mc13xxx(mc13783), irq,
handler, name, dev);
}
static inline int mc13783_irq_free(struct mc13783 *mc13783, int irq, void *dev)
{
return mc13xxx_irq_free(mc13783_to_mc13xxx(mc13783), irq, dev);
}
static inline int mc13783_irq_mask(struct mc13783 *mc13783, int irq)
{
return mc13xxx_irq_mask(mc13783_to_mc13xxx(mc13783), irq);
}
static inline int mc13783_irq_unmask(struct mc13783 *mc13783, int irq)
{
return mc13xxx_irq_unmask(mc13783_to_mc13xxx(mc13783), irq);
}
static inline int mc13783_irq_status(struct mc13783 *mc13783, int irq,
int *enabled, int *pending)
{
return mc13xxx_irq_status(mc13783_to_mc13xxx(mc13783),
irq, enabled, pending);
}
static inline int mc13783_irq_ack(struct mc13783 *mc13783, int irq)
{
return mc13xxx_irq_ack(mc13783_to_mc13xxx(mc13783), irq);
}
#define MC13783_ADC0 43 #define MC13783_ADC0 43
#define MC13783_ADC0_ADREFEN (1 << 10) #define MC13783_ADC0_ADREFEN (1 << 10)
@ -48,96 +101,18 @@ int mc13783_irq_ack(struct mc13783 *mc13783, int irq);
MC13783_ADC0_TSMOD1 | \ MC13783_ADC0_TSMOD1 | \
MC13783_ADC0_TSMOD2) MC13783_ADC0_TSMOD2)
struct mc13783_led_platform_data { #define mc13783_regulator_init_data mc13xxx_regulator_init_data
#define MC13783_LED_MD 0 #define mc13783_regulator_platform_data mc13xxx_regulator_platform_data
#define MC13783_LED_AD 1 #define mc13783_led_platform_data mc13xxx_led_platform_data
#define MC13783_LED_KP 2 #define mc13783_leds_platform_data mc13xxx_leds_platform_data
#define MC13783_LED_R1 3
#define MC13783_LED_G1 4
#define MC13783_LED_B1 5
#define MC13783_LED_R2 6
#define MC13783_LED_G2 7
#define MC13783_LED_B2 8
#define MC13783_LED_R3 9
#define MC13783_LED_G3 10
#define MC13783_LED_B3 11
#define MC13783_LED_MAX MC13783_LED_B3
int id;
const char *name;
const char *default_trigger;
/* Three or two bits current selection depending on the led */ #define mc13783_platform_data mc13xxx_platform_data
char max_current; #define MC13783_USE_TOUCHSCREEN MC13XXX_USE_TOUCHSCREEN
}; #define MC13783_USE_CODEC MC13XXX_USE_CODEC
#define MC13783_USE_ADC MC13XXX_USE_ADC
struct mc13783_leds_platform_data { #define MC13783_USE_RTC MC13XXX_USE_RTC
int num_leds; #define MC13783_USE_REGULATOR MC13XXX_USE_REGULATOR
struct mc13783_led_platform_data *led; #define MC13783_USE_LED MC13XXX_USE_LED
#define MC13783_LED_TRIODE_MD (1 << 0)
#define MC13783_LED_TRIODE_AD (1 << 1)
#define MC13783_LED_TRIODE_KP (1 << 2)
#define MC13783_LED_BOOST_EN (1 << 3)
#define MC13783_LED_TC1HALF (1 << 4)
#define MC13783_LED_SLEWLIMTC (1 << 5)
#define MC13783_LED_SLEWLIMBL (1 << 6)
#define MC13783_LED_TRIODE_TC1 (1 << 7)
#define MC13783_LED_TRIODE_TC2 (1 << 8)
#define MC13783_LED_TRIODE_TC3 (1 << 9)
int flags;
#define MC13783_LED_AB_DISABLED 0
#define MC13783_LED_AB_MD1 1
#define MC13783_LED_AB_MD12 2
#define MC13783_LED_AB_MD123 3
#define MC13783_LED_AB_MD1234 4
#define MC13783_LED_AB_MD1234_AD1 5
#define MC13783_LED_AB_MD1234_AD12 6
#define MC13783_LED_AB_MD1_AD 7
char abmode;
#define MC13783_LED_ABREF_200MV 0
#define MC13783_LED_ABREF_400MV 1
#define MC13783_LED_ABREF_600MV 2
#define MC13783_LED_ABREF_800MV 3
char abref;
#define MC13783_LED_PERIOD_10MS 0
#define MC13783_LED_PERIOD_100MS 1
#define MC13783_LED_PERIOD_500MS 2
#define MC13783_LED_PERIOD_2S 3
char bl_period;
char tc1_period;
char tc2_period;
char tc3_period;
};
/* to be cleaned up */
struct regulator_init_data;
struct mc13783_regulator_init_data {
int id;
struct regulator_init_data *init_data;
};
struct mc13783_regulator_platform_data {
int num_regulators;
struct mc13783_regulator_init_data *regulators;
};
struct mc13783_platform_data {
int num_regulators;
struct mc13783_regulator_init_data *regulators;
struct mc13783_leds_platform_data *leds;
#define MC13783_USE_TOUCHSCREEN (1 << 0)
#define MC13783_USE_CODEC (1 << 1)
#define MC13783_USE_ADC (1 << 2)
#define MC13783_USE_RTC (1 << 3)
#define MC13783_USE_REGULATOR (1 << 4)
#define MC13783_USE_LED (1 << 5)
unsigned int flags;
};
#define MC13783_ADC_MODE_TS 1 #define MC13783_ADC_MODE_TS 1
#define MC13783_ADC_MODE_SINGLE_CHAN 2 #define MC13783_ADC_MODE_SINGLE_CHAN 2
@ -181,46 +156,46 @@ int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
#define MC13783_REGU_PWGT1SPI 31 #define MC13783_REGU_PWGT1SPI 31
#define MC13783_REGU_PWGT2SPI 32 #define MC13783_REGU_PWGT2SPI 32
#define MC13783_IRQ_ADCDONE 0 #define MC13783_IRQ_ADCDONE MC13XXX_IRQ_ADCDONE
#define MC13783_IRQ_ADCBISDONE 1 #define MC13783_IRQ_ADCBISDONE MC13XXX_IRQ_ADCBISDONE
#define MC13783_IRQ_TS 2 #define MC13783_IRQ_TS MC13XXX_IRQ_TS
#define MC13783_IRQ_WHIGH 3 #define MC13783_IRQ_WHIGH 3
#define MC13783_IRQ_WLOW 4 #define MC13783_IRQ_WLOW 4
#define MC13783_IRQ_CHGDET 6 #define MC13783_IRQ_CHGDET MC13XXX_IRQ_CHGDET
#define MC13783_IRQ_CHGOV 7 #define MC13783_IRQ_CHGOV 7
#define MC13783_IRQ_CHGREV 8 #define MC13783_IRQ_CHGREV MC13XXX_IRQ_CHGREV
#define MC13783_IRQ_CHGSHORT 9 #define MC13783_IRQ_CHGSHORT MC13XXX_IRQ_CHGSHORT
#define MC13783_IRQ_CCCV 10 #define MC13783_IRQ_CCCV MC13XXX_IRQ_CCCV
#define MC13783_IRQ_CHGCURR 11 #define MC13783_IRQ_CHGCURR MC13XXX_IRQ_CHGCURR
#define MC13783_IRQ_BPON 12 #define MC13783_IRQ_BPON MC13XXX_IRQ_BPON
#define MC13783_IRQ_LOBATL 13 #define MC13783_IRQ_LOBATL MC13XXX_IRQ_LOBATL
#define MC13783_IRQ_LOBATH 14 #define MC13783_IRQ_LOBATH MC13XXX_IRQ_LOBATH
#define MC13783_IRQ_UDP 15 #define MC13783_IRQ_UDP 15
#define MC13783_IRQ_USB 16 #define MC13783_IRQ_USB 16
#define MC13783_IRQ_ID 19 #define MC13783_IRQ_ID 19
#define MC13783_IRQ_SE1 21 #define MC13783_IRQ_SE1 21
#define MC13783_IRQ_CKDET 22 #define MC13783_IRQ_CKDET 22
#define MC13783_IRQ_UDM 23 #define MC13783_IRQ_UDM 23
#define MC13783_IRQ_1HZ 24 #define MC13783_IRQ_1HZ MC13XXX_IRQ_1HZ
#define MC13783_IRQ_TODA 25 #define MC13783_IRQ_TODA MC13XXX_IRQ_TODA
#define MC13783_IRQ_ONOFD1 27 #define MC13783_IRQ_ONOFD1 27
#define MC13783_IRQ_ONOFD2 28 #define MC13783_IRQ_ONOFD2 28
#define MC13783_IRQ_ONOFD3 29 #define MC13783_IRQ_ONOFD3 29
#define MC13783_IRQ_SYSRST 30 #define MC13783_IRQ_SYSRST MC13XXX_IRQ_SYSRST
#define MC13783_IRQ_RTCRST 31 #define MC13783_IRQ_RTCRST MC13XXX_IRQ_RTCRST
#define MC13783_IRQ_PC 32 #define MC13783_IRQ_PC MC13XXX_IRQ_PC
#define MC13783_IRQ_WARM 33 #define MC13783_IRQ_WARM MC13XXX_IRQ_WARM
#define MC13783_IRQ_MEMHLD 34 #define MC13783_IRQ_MEMHLD MC13XXX_IRQ_MEMHLD
#define MC13783_IRQ_PWRRDY 35 #define MC13783_IRQ_PWRRDY 35
#define MC13783_IRQ_THWARNL 36 #define MC13783_IRQ_THWARNL MC13XXX_IRQ_THWARNL
#define MC13783_IRQ_THWARNH 37 #define MC13783_IRQ_THWARNH MC13XXX_IRQ_THWARNH
#define MC13783_IRQ_CLK 38 #define MC13783_IRQ_CLK MC13XXX_IRQ_CLK
#define MC13783_IRQ_SEMAF 39 #define MC13783_IRQ_SEMAF 39
#define MC13783_IRQ_MC2B 41 #define MC13783_IRQ_MC2B 41
#define MC13783_IRQ_HSDET 42 #define MC13783_IRQ_HSDET 42
#define MC13783_IRQ_HSL 43 #define MC13783_IRQ_HSL 43
#define MC13783_IRQ_ALSPTH 44 #define MC13783_IRQ_ALSPTH 44
#define MC13783_IRQ_AHSSHORT 45 #define MC13783_IRQ_AHSSHORT 45
#define MC13783_NUM_IRQ 46 #define MC13783_NUM_IRQ MC13XXX_NUM_IRQ
#endif /* __LINUX_MFD_MC13783_H */ #endif /* ifndef __LINUX_MFD_MC13783_H */

154
include/linux/mfd/mc13xxx.h Normal file
View file

@ -0,0 +1,154 @@
/*
* Copyright 2009-2010 Pengutronix
* Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
*
* 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.
*/
#ifndef __LINUX_MFD_MC13XXX_H
#define __LINUX_MFD_MC13XXX_H
#include <linux/interrupt.h>
struct mc13xxx;
void mc13xxx_lock(struct mc13xxx *mc13xxx);
void mc13xxx_unlock(struct mc13xxx *mc13xxx);
int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val);
int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val);
int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
u32 mask, u32 val);
int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
int mc13xxx_irq_request(struct mc13xxx *mc13xxx, int irq,
irq_handler_t handler, const char *name, void *dev);
int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,
irq_handler_t handler, const char *name, void *dev);
int mc13xxx_irq_free(struct mc13xxx *mc13xxx, int irq, void *dev);
int mc13xxx_irq_mask(struct mc13xxx *mc13xxx, int irq);
int mc13xxx_irq_unmask(struct mc13xxx *mc13xxx, int irq);
int mc13xxx_irq_status(struct mc13xxx *mc13xxx, int irq,
int *enabled, int *pending);
int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq);
int mc13xxx_get_flags(struct mc13xxx *mc13xxx);
#define MC13XXX_IRQ_ADCDONE 0
#define MC13XXX_IRQ_ADCBISDONE 1
#define MC13XXX_IRQ_TS 2
#define MC13XXX_IRQ_CHGDET 6
#define MC13XXX_IRQ_CHGREV 8
#define MC13XXX_IRQ_CHGSHORT 9
#define MC13XXX_IRQ_CCCV 10
#define MC13XXX_IRQ_CHGCURR 11
#define MC13XXX_IRQ_BPON 12
#define MC13XXX_IRQ_LOBATL 13
#define MC13XXX_IRQ_LOBATH 14
#define MC13XXX_IRQ_1HZ 24
#define MC13XXX_IRQ_TODA 25
#define MC13XXX_IRQ_SYSRST 30
#define MC13XXX_IRQ_RTCRST 31
#define MC13XXX_IRQ_PC 32
#define MC13XXX_IRQ_WARM 33
#define MC13XXX_IRQ_MEMHLD 34
#define MC13XXX_IRQ_THWARNL 36
#define MC13XXX_IRQ_THWARNH 37
#define MC13XXX_IRQ_CLK 38
#define MC13XXX_NUM_IRQ 46
struct regulator_init_data;
struct mc13xxx_regulator_init_data {
int id;
struct regulator_init_data *init_data;
};
struct mc13xxx_regulator_platform_data {
int num_regulators;
struct mc13xxx_regulator_init_data *regulators;
};
struct mc13xxx_led_platform_data {
#define MC13783_LED_MD 0
#define MC13783_LED_AD 1
#define MC13783_LED_KP 2
#define MC13783_LED_R1 3
#define MC13783_LED_G1 4
#define MC13783_LED_B1 5
#define MC13783_LED_R2 6
#define MC13783_LED_G2 7
#define MC13783_LED_B2 8
#define MC13783_LED_R3 9
#define MC13783_LED_G3 10
#define MC13783_LED_B3 11
#define MC13783_LED_MAX MC13783_LED_B3
int id;
const char *name;
const char *default_trigger;
/* Three or two bits current selection depending on the led */
char max_current;
};
struct mc13xxx_leds_platform_data {
int num_leds;
struct mc13xxx_led_platform_data *led;
#define MC13783_LED_TRIODE_MD (1 << 0)
#define MC13783_LED_TRIODE_AD (1 << 1)
#define MC13783_LED_TRIODE_KP (1 << 2)
#define MC13783_LED_BOOST_EN (1 << 3)
#define MC13783_LED_TC1HALF (1 << 4)
#define MC13783_LED_SLEWLIMTC (1 << 5)
#define MC13783_LED_SLEWLIMBL (1 << 6)
#define MC13783_LED_TRIODE_TC1 (1 << 7)
#define MC13783_LED_TRIODE_TC2 (1 << 8)
#define MC13783_LED_TRIODE_TC3 (1 << 9)
int flags;
#define MC13783_LED_AB_DISABLED 0
#define MC13783_LED_AB_MD1 1
#define MC13783_LED_AB_MD12 2
#define MC13783_LED_AB_MD123 3
#define MC13783_LED_AB_MD1234 4
#define MC13783_LED_AB_MD1234_AD1 5
#define MC13783_LED_AB_MD1234_AD12 6
#define MC13783_LED_AB_MD1_AD 7
char abmode;
#define MC13783_LED_ABREF_200MV 0
#define MC13783_LED_ABREF_400MV 1
#define MC13783_LED_ABREF_600MV 2
#define MC13783_LED_ABREF_800MV 3
char abref;
#define MC13783_LED_PERIOD_10MS 0
#define MC13783_LED_PERIOD_100MS 1
#define MC13783_LED_PERIOD_500MS 2
#define MC13783_LED_PERIOD_2S 3
char bl_period;
char tc1_period;
char tc2_period;
char tc3_period;
};
struct mc13xxx_platform_data {
#define MC13XXX_USE_TOUCHSCREEN (1 << 0)
#define MC13XXX_USE_CODEC (1 << 1)
#define MC13XXX_USE_ADC (1 << 2)
#define MC13XXX_USE_RTC (1 << 3)
#define MC13XXX_USE_REGULATOR (1 << 4)
#define MC13XXX_USE_LED (1 << 5)
unsigned int flags;
int num_regulators;
struct mc13xxx_regulator_init_data *regulators;
struct mc13xxx_leds_platform_data *leds;
};
#endif /* ifndef __LINUX_MFD_MC13XXX_H */