diff options
Diffstat (limited to 'drivers/mfd/mc13783-core.c')
| -rw-r--r-- | drivers/mfd/mc13783-core.c | 743 |
1 files changed, 0 insertions, 743 deletions
diff --git a/drivers/mfd/mc13783-core.c b/drivers/mfd/mc13783-core.c deleted file mode 100644 index 2506e688850..00000000000 --- a/drivers/mfd/mc13783-core.c +++ /dev/null @@ -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", - ®ulator_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"); |