* [PATCH 3/4] mfd/mc13xxx: add support for mc13892
2010-09-29 16:23 [PATCH 0/4] mfd/mc13xxx: cleanups and support for mc13892 Uwe Kleine-König
2010-09-29 16:23 ` [PATCH 1/4] mfd/mc13783: remove obsolete private data Uwe Kleine-König
2010-09-29 16:23 ` [PATCH 2/4] mfd/mc13783: remove deprecated functions Uwe Kleine-König
@ 2010-09-29 16:23 ` Uwe Kleine-König
2010-10-01 10:42 ` Samuel Ortiz
` (2 more replies)
2010-09-29 16:23 ` [PATCH 4/4] rtc/mc13xxx: add support for the rtc found in the MC13892 PMIC Uwe Kleine-König
3 siblings, 3 replies; 14+ messages in thread
From: Uwe Kleine-König @ 2010-09-29 16:23 UTC (permalink / raw)
To: linux-kernel, Samuel Ortiz, Alessandro Zummo, rtc-linux
Cc: Andrew Morton, Richard Purdie, Alberto Panizzo,
Valentin Longchamp
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superseded mc13783 driver unchanged.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>
---
drivers/mfd/Kconfig | 9 +-
drivers/mfd/Makefile | 2 +-
drivers/mfd/mc13783-core.c | 743 --------------------------------------
drivers/mfd/mc13xxx-core.c | 840 +++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/mc13783.h | 247 ++++++-------
include/linux/mfd/mc13xxx.h | 154 ++++++++
6 files changed, 1113 insertions(+), 882 deletions(-)
delete mode 100644 drivers/mfd/mc13783-core.c
create mode 100644 drivers/mfd/mc13xxx-core.c
create mode 100644 include/linux/mfd/mc13xxx.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index db51ea1..1868d9b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -408,11 +408,16 @@ config MFD_PCF50633
so that function-specific drivers can bind to them.
config MFD_MC13783
- tristate "Support Freescale MC13783"
+ tristate
+
+config MFD_MC13XXX
+ tristate "Support Freescale MC13783 and MC13892"
depends on SPI_MASTER
select MFD_CORE
+ select MFD_MC13783
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,
additional drivers must be enabled in order to use the
functionality of the device.
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index feaeeae..56965c9 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -39,7 +39,7 @@ obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
obj-$(CONFIG_TWL4030_CODEC) += twl4030-codec.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
diff --git a/drivers/mfd/mc13783-core.c b/drivers/mfd/mc13783-core.c
deleted file mode 100644
index 2506e68..0000000
--- 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");
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
new file mode 100644
index 0000000..93258ad
--- /dev/null
+++ b/drivers/mfd/mc13xxx-core.c
@@ -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",
+ ®ulator_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");
diff --git a/include/linux/mfd/mc13783.h b/include/linux/mfd/mc13783.h
index 5f6aff5..b4c741e 100644
--- a/include/linux/mfd/mc13783.h
+++ b/include/linux/mfd/mc13783.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2009 Pengutronix
+ * 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
@@ -9,31 +9,84 @@
#ifndef __LINUX_MFD_MC13783_H
#define __LINUX_MFD_MC13783_H
-#include <linux/interrupt.h>
+#include <linux/mfd/mc13xxx.h>
struct mc13783;
-void mc13783_lock(struct mc13783 *mc13783);
-void mc13783_unlock(struct mc13783 *mc13783);
-
-int mc13783_reg_read(struct mc13783 *mc13783, unsigned int offset, u32 *val);
-int mc13783_reg_write(struct mc13783 *mc13783, unsigned int offset, u32 val);
-int mc13783_reg_rmw(struct mc13783 *mc13783, unsigned int offset,
- u32 mask, u32 val);
-
-int mc13783_get_flags(struct mc13783 *mc13783);
-
-int mc13783_irq_request(struct mc13783 *mc13783, int irq,
- irq_handler_t handler, const char *name, void *dev);
-int mc13783_irq_request_nounmask(struct mc13783 *mc13783, int irq,
- irq_handler_t handler, const char *name, void *dev);
-int mc13783_irq_free(struct mc13783 *mc13783, int irq, void *dev);
-
-int mc13783_irq_mask(struct mc13783 *mc13783, int irq);
-int mc13783_irq_unmask(struct mc13783 *mc13783, int irq);
-int mc13783_irq_status(struct mc13783 *mc13783, int irq,
- int *enabled, int *pending);
-int mc13783_irq_ack(struct mc13783 *mc13783, int irq);
+struct mc13xxx *mc13783_to_mc13xxx(struct mc13783 *mc13783);
+
+static inline void mc13783_lock(struct mc13783 *mc13783)
+{
+ mc13xxx_lock(mc13783_to_mc13xxx(mc13783));
+}
+
+static inline void mc13783_unlock(struct mc13783 *mc13783)
+{
+ mc13xxx_unlock(mc13783_to_mc13xxx(mc13783));
+}
+
+static inline int mc13783_reg_read(struct mc13783 *mc13783,
+ unsigned int offset, u32 *val)
+{
+ return mc13xxx_reg_read(mc13783_to_mc13xxx(mc13783), offset, val);
+}
+
+static inline int mc13783_reg_write(struct mc13783 *mc13783,
+ unsigned int offset, u32 val)
+{
+ return mc13xxx_reg_write(mc13783_to_mc13xxx(mc13783), offset, val);
+}
+
+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_ADREFEN (1 << 10)
@@ -48,96 +101,18 @@ int mc13783_irq_ack(struct mc13783 *mc13783, int irq);
MC13783_ADC0_TSMOD1 | \
MC13783_ADC0_TSMOD2)
-struct mc13783_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 mc13783_leds_platform_data {
- int num_leds;
- struct mc13783_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;
-};
-
-/* 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_regulator_init_data mc13xxx_regulator_init_data
+#define mc13783_regulator_platform_data mc13xxx_regulator_platform_data
+#define mc13783_led_platform_data mc13xxx_led_platform_data
+#define mc13783_leds_platform_data mc13xxx_leds_platform_data
+
+#define mc13783_platform_data mc13xxx_platform_data
+#define MC13783_USE_TOUCHSCREEN MC13XXX_USE_TOUCHSCREEN
+#define MC13783_USE_CODEC MC13XXX_USE_CODEC
+#define MC13783_USE_ADC MC13XXX_USE_ADC
+#define MC13783_USE_RTC MC13XXX_USE_RTC
+#define MC13783_USE_REGULATOR MC13XXX_USE_REGULATOR
+#define MC13783_USE_LED MC13XXX_USE_LED
#define MC13783_ADC_MODE_TS 1
#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_PWGT2SPI 32
-#define MC13783_IRQ_ADCDONE 0
-#define MC13783_IRQ_ADCBISDONE 1
-#define MC13783_IRQ_TS 2
+#define MC13783_IRQ_ADCDONE MC13XXX_IRQ_ADCDONE
+#define MC13783_IRQ_ADCBISDONE MC13XXX_IRQ_ADCBISDONE
+#define MC13783_IRQ_TS MC13XXX_IRQ_TS
#define MC13783_IRQ_WHIGH 3
#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_CHGREV 8
-#define MC13783_IRQ_CHGSHORT 9
-#define MC13783_IRQ_CCCV 10
-#define MC13783_IRQ_CHGCURR 11
-#define MC13783_IRQ_BPON 12
-#define MC13783_IRQ_LOBATL 13
-#define MC13783_IRQ_LOBATH 14
+#define MC13783_IRQ_CHGREV MC13XXX_IRQ_CHGREV
+#define MC13783_IRQ_CHGSHORT MC13XXX_IRQ_CHGSHORT
+#define MC13783_IRQ_CCCV MC13XXX_IRQ_CCCV
+#define MC13783_IRQ_CHGCURR MC13XXX_IRQ_CHGCURR
+#define MC13783_IRQ_BPON MC13XXX_IRQ_BPON
+#define MC13783_IRQ_LOBATL MC13XXX_IRQ_LOBATL
+#define MC13783_IRQ_LOBATH MC13XXX_IRQ_LOBATH
#define MC13783_IRQ_UDP 15
#define MC13783_IRQ_USB 16
#define MC13783_IRQ_ID 19
#define MC13783_IRQ_SE1 21
#define MC13783_IRQ_CKDET 22
#define MC13783_IRQ_UDM 23
-#define MC13783_IRQ_1HZ 24
-#define MC13783_IRQ_TODA 25
+#define MC13783_IRQ_1HZ MC13XXX_IRQ_1HZ
+#define MC13783_IRQ_TODA MC13XXX_IRQ_TODA
#define MC13783_IRQ_ONOFD1 27
#define MC13783_IRQ_ONOFD2 28
#define MC13783_IRQ_ONOFD3 29
-#define MC13783_IRQ_SYSRST 30
-#define MC13783_IRQ_RTCRST 31
-#define MC13783_IRQ_PC 32
-#define MC13783_IRQ_WARM 33
-#define MC13783_IRQ_MEMHLD 34
+#define MC13783_IRQ_SYSRST MC13XXX_IRQ_SYSRST
+#define MC13783_IRQ_RTCRST MC13XXX_IRQ_RTCRST
+#define MC13783_IRQ_PC MC13XXX_IRQ_PC
+#define MC13783_IRQ_WARM MC13XXX_IRQ_WARM
+#define MC13783_IRQ_MEMHLD MC13XXX_IRQ_MEMHLD
#define MC13783_IRQ_PWRRDY 35
-#define MC13783_IRQ_THWARNL 36
-#define MC13783_IRQ_THWARNH 37
-#define MC13783_IRQ_CLK 38
+#define MC13783_IRQ_THWARNL MC13XXX_IRQ_THWARNL
+#define MC13783_IRQ_THWARNH MC13XXX_IRQ_THWARNH
+#define MC13783_IRQ_CLK MC13XXX_IRQ_CLK
#define MC13783_IRQ_SEMAF 39
#define MC13783_IRQ_MC2B 41
#define MC13783_IRQ_HSDET 42
#define MC13783_IRQ_HSL 43
#define MC13783_IRQ_ALSPTH 44
#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 */
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
new file mode 100644
index 0000000..a1d391b
--- /dev/null
+++ b/include/linux/mfd/mc13xxx.h
@@ -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 */
--
1.7.2.3
^ permalink raw reply related [flat|nested] 14+ messages in thread* [PATCH 4/4] rtc/mc13xxx: add support for the rtc found in the MC13892 PMIC
2010-09-29 16:23 [PATCH 0/4] mfd/mc13xxx: cleanups and support for mc13892 Uwe Kleine-König
` (2 preceding siblings ...)
2010-09-29 16:23 ` [PATCH 3/4] mfd/mc13xxx: add support for mc13892 Uwe Kleine-König
@ 2010-09-29 16:23 ` Uwe Kleine-König
2010-10-01 7:38 ` Alessandro Zummo
3 siblings, 1 reply; 14+ messages in thread
From: Uwe Kleine-König @ 2010-09-29 16:23 UTC (permalink / raw)
To: linux-kernel, Samuel Ortiz, Alessandro Zummo, rtc-linux
Cc: Andrew Morton, Richard Purdie, Alberto Panizzo,
Valentin Longchamp
The mfd driver for MC13783 recently got support for MC13892 and was
renamed accordingly from mc13783-core to mc13xxx-core. Do the same for
rtc-mc13783.
The only relevant change is to use platform id's to tell the platform bus
that this driver is responsible for mc13892-rtc devices, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/rtc/Kconfig | 7 +-
drivers/rtc/Makefile | 2 +-
drivers/rtc/rtc-mc13783.c | 428 --------------------------------------------
drivers/rtc/rtc-mc13xxx.c | 437 +++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 442 insertions(+), 432 deletions(-)
delete mode 100644 drivers/rtc/rtc-mc13783.c
create mode 100644 drivers/rtc/rtc-mc13xxx.c
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 48ca713..6ac83c2 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -926,10 +926,11 @@ config RTC_DRV_PCAP
the PCAP2 ASIC used on some Motorola phones.
config RTC_DRV_MC13783
- depends on MFD_MC13783
- tristate "Freescale MC13783 RTC"
+ depends on MFD_MC13XXX
+ tristate "Freescale MC13xxx RTC"
help
- This enables support for the Freescale MC13783 PMIC RTC
+ This enables support for the RTCs found on Freescale's PMICs
+ MC13783 and MC13892.
config RTC_DRV_MPC5121
tristate "Freescale MPC5121 built-in RTC"
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 0f207b3..61d8848 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -60,7 +60,7 @@ obj-$(CONFIG_RTC_MXC) += rtc-mxc.o
obj-$(CONFIG_RTC_DRV_MAX6900) += rtc-max6900.o
obj-$(CONFIG_RTC_DRV_MAX8925) += rtc-max8925.o
obj-$(CONFIG_RTC_DRV_MAX6902) += rtc-max6902.o
-obj-$(CONFIG_RTC_DRV_MC13783) += rtc-mc13783.o
+obj-$(CONFIG_RTC_DRV_MC13XXX) += rtc-mc13xxx.o
obj-$(CONFIG_RTC_DRV_MSM6242) += rtc-msm6242.o
obj-$(CONFIG_RTC_DRV_MPC5121) += rtc-mpc5121.o
obj-$(CONFIG_RTC_DRV_MV) += rtc-mv.o
diff --git a/drivers/rtc/rtc-mc13783.c b/drivers/rtc/rtc-mc13783.c
deleted file mode 100644
index 675bfb5..0000000
--- a/drivers/rtc/rtc-mc13783.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/*
- * Real Time Clock driver for Freescale MC13783 PMIC
- *
- * (C) 2009 Sascha Hauer, Pengutronix
- * (C) 2009 Uwe Kleine-Koenig, Pengutronix
- *
- * 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/mfd/mc13783.h>
-#include <linux/platform_device.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/rtc.h>
-
-#define DRIVER_NAME "mc13783-rtc"
-
-#define MC13783_RTCTOD 20
-#define MC13783_RTCTODA 21
-#define MC13783_RTCDAY 22
-#define MC13783_RTCDAYA 23
-
-struct mc13783_rtc {
- struct rtc_device *rtc;
- struct mc13783 *mc13783;
- int valid;
-};
-
-static int mc13783_rtc_irq_enable_unlocked(struct device *dev,
- unsigned int enabled, int irq)
-{
- struct mc13783_rtc *priv = dev_get_drvdata(dev);
- int (*func)(struct mc13783 *mc13783, int irq);
-
- if (!priv->valid)
- return -ENODATA;
-
- func = enabled ? mc13783_irq_unmask : mc13783_irq_mask;
- return func(priv->mc13783, irq);
-}
-
-static int mc13783_rtc_irq_enable(struct device *dev,
- unsigned int enabled, int irq)
-{
- struct mc13783_rtc *priv = dev_get_drvdata(dev);
- int ret;
-
- mc13783_lock(priv->mc13783);
-
- ret = mc13783_rtc_irq_enable_unlocked(dev, enabled, irq);
-
- mc13783_unlock(priv->mc13783);
-
- return ret;
-}
-
-static int mc13783_rtc_read_time(struct device *dev, struct rtc_time *tm)
-{
- struct mc13783_rtc *priv = dev_get_drvdata(dev);
- unsigned int seconds, days1, days2;
- unsigned long s1970;
- int ret;
-
- mc13783_lock(priv->mc13783);
-
- if (!priv->valid) {
- ret = -ENODATA;
- goto out;
- }
-
- ret = mc13783_reg_read(priv->mc13783, MC13783_RTCDAY, &days1);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_reg_read(priv->mc13783, MC13783_RTCTOD, &seconds);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_reg_read(priv->mc13783, MC13783_RTCDAY, &days2);
-out:
- mc13783_unlock(priv->mc13783);
-
- if (ret)
- return ret;
-
- if (days2 == days1 + 1) {
- if (seconds >= 86400 / 2)
- days2 = days1;
- else
- days1 = days2;
- }
-
- if (days1 != days2)
- return -EIO;
-
- s1970 = days1 * 86400 + seconds;
-
- rtc_time_to_tm(s1970, tm);
-
- return rtc_valid_tm(tm);
-}
-
-static int mc13783_rtc_set_mmss(struct device *dev, unsigned long secs)
-{
- struct mc13783_rtc *priv = dev_get_drvdata(dev);
- unsigned int seconds, days;
- unsigned int alarmseconds;
- int ret;
-
- seconds = secs % 86400;
- days = secs / 86400;
-
- mc13783_lock(priv->mc13783);
-
- /*
- * temporarily invalidate alarm to prevent triggering it when the day is
- * already updated while the time isn't yet.
- */
- ret = mc13783_reg_read(priv->mc13783, MC13783_RTCTODA, &alarmseconds);
- if (unlikely(ret))
- goto out;
-
- if (alarmseconds < 86400) {
- ret = mc13783_reg_write(priv->mc13783,
- MC13783_RTCTODA, 0x1ffff);
- if (unlikely(ret))
- goto out;
- }
-
- /*
- * write seconds=0 to prevent a day switch between writing days
- * and seconds below
- */
- ret = mc13783_reg_write(priv->mc13783, MC13783_RTCTOD, 0);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_reg_write(priv->mc13783, MC13783_RTCDAY, days);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_reg_write(priv->mc13783, MC13783_RTCTOD, seconds);
- if (unlikely(ret))
- goto out;
-
- /* restore alarm */
- if (alarmseconds < 86400) {
- ret = mc13783_reg_write(priv->mc13783,
- MC13783_RTCTODA, alarmseconds);
- if (unlikely(ret))
- goto out;
- }
-
- ret = mc13783_irq_ack(priv->mc13783, MC13783_IRQ_RTCRST);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_irq_unmask(priv->mc13783, MC13783_IRQ_RTCRST);
-out:
- priv->valid = !ret;
-
- mc13783_unlock(priv->mc13783);
-
- return ret;
-}
-
-static int mc13783_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
-{
- struct mc13783_rtc *priv = dev_get_drvdata(dev);
- unsigned seconds, days;
- unsigned long s1970;
- int enabled, pending;
- int ret;
-
- mc13783_lock(priv->mc13783);
-
- ret = mc13783_reg_read(priv->mc13783, MC13783_RTCTODA, &seconds);
- if (unlikely(ret))
- goto out;
- if (seconds >= 86400) {
- ret = -ENODATA;
- goto out;
- }
-
- ret = mc13783_reg_read(priv->mc13783, MC13783_RTCDAY, &days);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_irq_status(priv->mc13783, MC13783_IRQ_TODA,
- &enabled, &pending);
-
-out:
- mc13783_unlock(priv->mc13783);
-
- if (ret)
- return ret;
-
- alarm->enabled = enabled;
- alarm->pending = pending;
-
- s1970 = days * 86400 + seconds;
-
- rtc_time_to_tm(s1970, &alarm->time);
- dev_dbg(dev, "%s: %lu\n", __func__, s1970);
-
- return 0;
-}
-
-static int mc13783_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
-{
- struct mc13783_rtc *priv = dev_get_drvdata(dev);
- unsigned long s1970;
- unsigned seconds, days;
- int ret;
-
- mc13783_lock(priv->mc13783);
-
- /* disable alarm to prevent false triggering */
- ret = mc13783_reg_write(priv->mc13783, MC13783_RTCTODA, 0x1ffff);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_irq_ack(priv->mc13783, MC13783_IRQ_TODA);
- if (unlikely(ret))
- goto out;
-
- ret = rtc_tm_to_time(&alarm->time, &s1970);
- if (unlikely(ret))
- goto out;
-
- dev_dbg(dev, "%s: o%2.s %lu\n", __func__, alarm->enabled ? "n" : "ff",
- s1970);
-
- ret = mc13783_rtc_irq_enable_unlocked(dev, alarm->enabled,
- MC13783_IRQ_TODA);
- if (unlikely(ret))
- goto out;
-
- seconds = s1970 % 86400;
- days = s1970 / 86400;
-
- ret = mc13783_reg_write(priv->mc13783, MC13783_RTCDAYA, days);
- if (unlikely(ret))
- goto out;
-
- ret = mc13783_reg_write(priv->mc13783, MC13783_RTCTODA, seconds);
-
-out:
- mc13783_unlock(priv->mc13783);
-
- return ret;
-}
-
-static irqreturn_t mc13783_rtc_alarm_handler(int irq, void *dev)
-{
- struct mc13783_rtc *priv = dev;
- struct mc13783 *mc13783 = priv->mc13783;
-
- dev_dbg(&priv->rtc->dev, "Alarm\n");
-
- rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_AF);
-
- mc13783_irq_ack(mc13783, irq);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t mc13783_rtc_update_handler(int irq, void *dev)
-{
- struct mc13783_rtc *priv = dev;
- struct mc13783 *mc13783 = priv->mc13783;
-
- dev_dbg(&priv->rtc->dev, "1HZ\n");
-
- rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_UF);
-
- mc13783_irq_ack(mc13783, irq);
-
- return IRQ_HANDLED;
-}
-
-static int mc13783_rtc_update_irq_enable(struct device *dev,
- unsigned int enabled)
-{
- return mc13783_rtc_irq_enable(dev, enabled, MC13783_IRQ_1HZ);
-}
-
-static int mc13783_rtc_alarm_irq_enable(struct device *dev,
- unsigned int enabled)
-{
- return mc13783_rtc_irq_enable(dev, enabled, MC13783_IRQ_TODA);
-}
-
-static const struct rtc_class_ops mc13783_rtc_ops = {
- .read_time = mc13783_rtc_read_time,
- .set_mmss = mc13783_rtc_set_mmss,
- .read_alarm = mc13783_rtc_read_alarm,
- .set_alarm = mc13783_rtc_set_alarm,
- .alarm_irq_enable = mc13783_rtc_alarm_irq_enable,
- .update_irq_enable = mc13783_rtc_update_irq_enable,
-};
-
-static irqreturn_t mc13783_rtc_reset_handler(int irq, void *dev)
-{
- struct mc13783_rtc *priv = dev;
- struct mc13783 *mc13783 = priv->mc13783;
-
- dev_dbg(&priv->rtc->dev, "RTCRST\n");
- priv->valid = 0;
-
- mc13783_irq_mask(mc13783, irq);
-
- return IRQ_HANDLED;
-}
-
-static int __devinit mc13783_rtc_probe(struct platform_device *pdev)
-{
- int ret;
- struct mc13783_rtc *priv;
- struct mc13783 *mc13783;
- int rtcrst_pending;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- mc13783 = dev_get_drvdata(pdev->dev.parent);
- priv->mc13783 = mc13783;
-
- platform_set_drvdata(pdev, priv);
-
- mc13783_lock(mc13783);
-
- ret = mc13783_irq_request(mc13783, MC13783_IRQ_RTCRST,
- mc13783_rtc_reset_handler, DRIVER_NAME, priv);
- if (ret)
- goto err_reset_irq_request;
-
- ret = mc13783_irq_status(mc13783, MC13783_IRQ_RTCRST,
- NULL, &rtcrst_pending);
- if (ret)
- goto err_reset_irq_status;
-
- priv->valid = !rtcrst_pending;
-
- ret = mc13783_irq_request_nounmask(mc13783, MC13783_IRQ_1HZ,
- mc13783_rtc_update_handler, DRIVER_NAME, priv);
- if (ret)
- goto err_update_irq_request;
-
- ret = mc13783_irq_request_nounmask(mc13783, MC13783_IRQ_TODA,
- mc13783_rtc_alarm_handler, DRIVER_NAME, priv);
- if (ret)
- goto err_alarm_irq_request;
-
- priv->rtc = rtc_device_register(pdev->name,
- &pdev->dev, &mc13783_rtc_ops, THIS_MODULE);
- if (IS_ERR(priv->rtc)) {
- ret = PTR_ERR(priv->rtc);
-
- mc13783_irq_free(mc13783, MC13783_IRQ_TODA, priv);
-err_alarm_irq_request:
-
- mc13783_irq_free(mc13783, MC13783_IRQ_1HZ, priv);
-err_update_irq_request:
-
-err_reset_irq_status:
-
- mc13783_irq_free(mc13783, MC13783_IRQ_RTCRST, priv);
-err_reset_irq_request:
-
- platform_set_drvdata(pdev, NULL);
- kfree(priv);
- }
-
- mc13783_unlock(mc13783);
-
- return ret;
-}
-
-static int __devexit mc13783_rtc_remove(struct platform_device *pdev)
-{
- struct mc13783_rtc *priv = platform_get_drvdata(pdev);
-
- mc13783_lock(priv->mc13783);
-
- rtc_device_unregister(priv->rtc);
-
- mc13783_irq_free(priv->mc13783, MC13783_IRQ_TODA, priv);
- mc13783_irq_free(priv->mc13783, MC13783_IRQ_1HZ, priv);
- mc13783_irq_free(priv->mc13783, MC13783_IRQ_RTCRST, priv);
-
- mc13783_unlock(priv->mc13783);
-
- platform_set_drvdata(pdev, NULL);
-
- kfree(priv);
-
- return 0;
-}
-
-static struct platform_driver mc13783_rtc_driver = {
- .remove = __devexit_p(mc13783_rtc_remove),
- .driver = {
- .name = DRIVER_NAME,
- .owner = THIS_MODULE,
- },
-};
-
-static int __init mc13783_rtc_init(void)
-{
- return platform_driver_probe(&mc13783_rtc_driver, &mc13783_rtc_probe);
-}
-module_init(mc13783_rtc_init);
-
-static void __exit mc13783_rtc_exit(void)
-{
- platform_driver_unregister(&mc13783_rtc_driver);
-}
-module_exit(mc13783_rtc_exit);
-
-MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
-MODULE_DESCRIPTION("RTC driver for Freescale MC13783 PMIC");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c
new file mode 100644
index 0000000..5314b15
--- /dev/null
+++ b/drivers/rtc/rtc-mc13xxx.c
@@ -0,0 +1,437 @@
+/*
+ * Real Time Clock driver for Freescale MC13XXX PMIC
+ *
+ * (C) 2009 Sascha Hauer, Pengutronix
+ * (C) 2009 Uwe Kleine-Koenig, Pengutronix
+ *
+ * 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/mfd/mc13xxx.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/rtc.h>
+
+#define DRIVER_NAME "mc13xxx-rtc"
+
+#define MC13XXX_RTCTOD 20
+#define MC13XXX_RTCTODA 21
+#define MC13XXX_RTCDAY 22
+#define MC13XXX_RTCDAYA 23
+
+struct mc13xxx_rtc {
+ struct rtc_device *rtc;
+ struct mc13xxx *mc13xxx;
+ int valid;
+};
+
+static int mc13xxx_rtc_irq_enable_unlocked(struct device *dev,
+ unsigned int enabled, int irq)
+{
+ struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
+ int (*func)(struct mc13xxx *mc13xxx, int irq);
+
+ if (!priv->valid)
+ return -ENODATA;
+
+ func = enabled ? mc13xxx_irq_unmask : mc13xxx_irq_mask;
+ return func(priv->mc13xxx, irq);
+}
+
+static int mc13xxx_rtc_irq_enable(struct device *dev,
+ unsigned int enabled, int irq)
+{
+ struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
+ int ret;
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ ret = mc13xxx_rtc_irq_enable_unlocked(dev, enabled, irq);
+
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13xxx_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
+ unsigned int seconds, days1, days2;
+ unsigned long s1970;
+ int ret;
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ if (!priv->valid) {
+ ret = -ENODATA;
+ goto out;
+ }
+
+ ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days1);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTOD, &seconds);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days2);
+out:
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ if (days2 == days1 + 1) {
+ if (seconds >= 86400 / 2)
+ days2 = days1;
+ else
+ days1 = days2;
+ }
+
+ if (days1 != days2)
+ return -EIO;
+
+ s1970 = days1 * 86400 + seconds;
+
+ rtc_time_to_tm(s1970, tm);
+
+ return rtc_valid_tm(tm);
+}
+
+static int mc13xxx_rtc_set_mmss(struct device *dev, unsigned long secs)
+{
+ struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
+ unsigned int seconds, days;
+ unsigned int alarmseconds;
+ int ret;
+
+ seconds = secs % 86400;
+ days = secs / 86400;
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ /*
+ * temporarily invalidate alarm to prevent triggering it when the day is
+ * already updated while the time isn't yet.
+ */
+ ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &alarmseconds);
+ if (unlikely(ret))
+ goto out;
+
+ if (alarmseconds < 86400) {
+ ret = mc13xxx_reg_write(priv->mc13xxx,
+ MC13XXX_RTCTODA, 0x1ffff);
+ if (unlikely(ret))
+ goto out;
+ }
+
+ /*
+ * write seconds=0 to prevent a day switch between writing days
+ * and seconds below
+ */
+ ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, 0);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAY, days);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, seconds);
+ if (unlikely(ret))
+ goto out;
+
+ /* restore alarm */
+ if (alarmseconds < 86400) {
+ ret = mc13xxx_reg_write(priv->mc13xxx,
+ MC13XXX_RTCTODA, alarmseconds);
+ if (unlikely(ret))
+ goto out;
+ }
+
+ ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_irq_unmask(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
+out:
+ priv->valid = !ret;
+
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13xxx_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+ struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
+ unsigned seconds, days;
+ unsigned long s1970;
+ int enabled, pending;
+ int ret;
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &seconds);
+ if (unlikely(ret))
+ goto out;
+ if (seconds >= 86400) {
+ ret = -ENODATA;
+ goto out;
+ }
+
+ ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_irq_status(priv->mc13xxx, MC13XXX_IRQ_TODA,
+ &enabled, &pending);
+
+out:
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ alarm->enabled = enabled;
+ alarm->pending = pending;
+
+ s1970 = days * 86400 + seconds;
+
+ rtc_time_to_tm(s1970, &alarm->time);
+ dev_dbg(dev, "%s: %lu\n", __func__, s1970);
+
+ return 0;
+}
+
+static int mc13xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+ struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
+ unsigned long s1970;
+ unsigned seconds, days;
+ int ret;
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ /* disable alarm to prevent false triggering */
+ ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTODA, 0x1ffff);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TODA);
+ if (unlikely(ret))
+ goto out;
+
+ ret = rtc_tm_to_time(&alarm->time, &s1970);
+ if (unlikely(ret))
+ goto out;
+
+ dev_dbg(dev, "%s: o%2.s %lu\n", __func__, alarm->enabled ? "n" : "ff",
+ s1970);
+
+ ret = mc13xxx_rtc_irq_enable_unlocked(dev, alarm->enabled,
+ MC13XXX_IRQ_TODA);
+ if (unlikely(ret))
+ goto out;
+
+ seconds = s1970 % 86400;
+ days = s1970 / 86400;
+
+ ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAYA, days);
+ if (unlikely(ret))
+ goto out;
+
+ ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTODA, seconds);
+
+out:
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static irqreturn_t mc13xxx_rtc_alarm_handler(int irq, void *dev)
+{
+ struct mc13xxx_rtc *priv = dev;
+ struct mc13xxx *mc13xxx = priv->mc13xxx;
+
+ dev_dbg(&priv->rtc->dev, "Alarm\n");
+
+ rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_AF);
+
+ mc13xxx_irq_ack(mc13xxx, irq);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t mc13xxx_rtc_update_handler(int irq, void *dev)
+{
+ struct mc13xxx_rtc *priv = dev;
+ struct mc13xxx *mc13xxx = priv->mc13xxx;
+
+ dev_dbg(&priv->rtc->dev, "1HZ\n");
+
+ rtc_update_irq(priv->rtc, 1, RTC_IRQF | RTC_UF);
+
+ mc13xxx_irq_ack(mc13xxx, irq);
+
+ return IRQ_HANDLED;
+}
+
+static int mc13xxx_rtc_update_irq_enable(struct device *dev,
+ unsigned int enabled)
+{
+ return mc13xxx_rtc_irq_enable(dev, enabled, MC13XXX_IRQ_1HZ);
+}
+
+static int mc13xxx_rtc_alarm_irq_enable(struct device *dev,
+ unsigned int enabled)
+{
+ return mc13xxx_rtc_irq_enable(dev, enabled, MC13XXX_IRQ_TODA);
+}
+
+static const struct rtc_class_ops mc13xxx_rtc_ops = {
+ .read_time = mc13xxx_rtc_read_time,
+ .set_mmss = mc13xxx_rtc_set_mmss,
+ .read_alarm = mc13xxx_rtc_read_alarm,
+ .set_alarm = mc13xxx_rtc_set_alarm,
+ .alarm_irq_enable = mc13xxx_rtc_alarm_irq_enable,
+ .update_irq_enable = mc13xxx_rtc_update_irq_enable,
+};
+
+static irqreturn_t mc13xxx_rtc_reset_handler(int irq, void *dev)
+{
+ struct mc13xxx_rtc *priv = dev;
+ struct mc13xxx *mc13xxx = priv->mc13xxx;
+
+ dev_dbg(&priv->rtc->dev, "RTCRST\n");
+ priv->valid = 0;
+
+ mc13xxx_irq_mask(mc13xxx, irq);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit mc13xxx_rtc_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct mc13xxx_rtc *priv;
+ struct mc13xxx *mc13xxx;
+ int rtcrst_pending;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ mc13xxx = dev_get_drvdata(pdev->dev.parent);
+ priv->mc13xxx = mc13xxx;
+
+ platform_set_drvdata(pdev, priv);
+
+ mc13xxx_lock(mc13xxx);
+
+ ret = mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_RTCRST,
+ mc13xxx_rtc_reset_handler, DRIVER_NAME, priv);
+ if (ret)
+ goto err_reset_irq_request;
+
+ ret = mc13xxx_irq_status(mc13xxx, MC13XXX_IRQ_RTCRST,
+ NULL, &rtcrst_pending);
+ if (ret)
+ goto err_reset_irq_status;
+
+ priv->valid = !rtcrst_pending;
+
+ ret = mc13xxx_irq_request_nounmask(mc13xxx, MC13XXX_IRQ_1HZ,
+ mc13xxx_rtc_update_handler, DRIVER_NAME, priv);
+ if (ret)
+ goto err_update_irq_request;
+
+ ret = mc13xxx_irq_request_nounmask(mc13xxx, MC13XXX_IRQ_TODA,
+ mc13xxx_rtc_alarm_handler, DRIVER_NAME, priv);
+ if (ret)
+ goto err_alarm_irq_request;
+
+ priv->rtc = rtc_device_register(pdev->name,
+ &pdev->dev, &mc13xxx_rtc_ops, THIS_MODULE);
+ if (IS_ERR(priv->rtc)) {
+ ret = PTR_ERR(priv->rtc);
+
+ mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_TODA, priv);
+err_alarm_irq_request:
+
+ mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_1HZ, priv);
+err_update_irq_request:
+
+err_reset_irq_status:
+
+ mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_RTCRST, priv);
+err_reset_irq_request:
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(priv);
+ }
+
+ mc13xxx_unlock(mc13xxx);
+
+ return ret;
+}
+
+static int __devexit mc13xxx_rtc_remove(struct platform_device *pdev)
+{
+ struct mc13xxx_rtc *priv = platform_get_drvdata(pdev);
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ rtc_device_unregister(priv->rtc);
+
+ mc13xxx_irq_free(priv->mc13xxx, MC13XXX_IRQ_TODA, priv);
+ mc13xxx_irq_free(priv->mc13xxx, MC13XXX_IRQ_1HZ, priv);
+ mc13xxx_irq_free(priv->mc13xxx, MC13XXX_IRQ_RTCRST, priv);
+
+ mc13xxx_unlock(priv->mc13xxx);
+
+ platform_set_drvdata(pdev, NULL);
+
+ kfree(priv);
+
+ return 0;
+}
+
+const struct platform_device_id mc13xxx_rtc_idtable[] = {
+ {
+ .name = "mc13783-rtc",
+ }, {
+ .name = "mc13892-rtc",
+ },
+};
+
+static struct platform_driver mc13xxx_rtc_driver = {
+ .id_table = mc13xxx_rtc_idtable,
+ .remove = __devexit_p(mc13xxx_rtc_remove),
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init mc13xxx_rtc_init(void)
+{
+ return platform_driver_probe(&mc13xxx_rtc_driver, &mc13xxx_rtc_probe);
+}
+module_init(mc13xxx_rtc_init);
+
+static void __exit mc13xxx_rtc_exit(void)
+{
+ platform_driver_unregister(&mc13xxx_rtc_driver);
+}
+module_exit(mc13xxx_rtc_exit);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("RTC driver for Freescale MC13XXX PMIC");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
--
1.7.2.3
^ permalink raw reply related [flat|nested] 14+ messages in thread