summaryrefslogtreecommitdiff
path: root/drivers/mfd/mc13xxx-core.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-03 20:40:51 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-03 20:40:51 +0400
commita0a4194c943bc64dd7b6e26cccb036cb26b81363 (patch)
tree4282f0dd573344d10f69616eb05868b5cd563cc1 /drivers/mfd/mc13xxx-core.c
parentcf0223503e6198292cdcc864e01eeb5fe7490752 (diff)
parentb958f7a7cbdfbf59ba61de7ebb9c59b0ee3a7967 (diff)
downloadlinux-a0a4194c943bc64dd7b6e26cccb036cb26b81363.tar.xz
Merge branch 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6
* 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6: (80 commits) mfd: Fix missing abx500 header file updates mfd: Add missing <linux/io.h> include to intel_msic x86, mrst: add platform support for MSIC MFD driver mfd: Expose TurnOnStatus in ab8500 sysfs mfd: Remove support for early drop ab8500 chip mfd: Add support for ab8500 v3.3 mfd: Add ab8500 interrupt disable hook mfd: Convert db8500-prcmu panic() into pr_crit() mfd: Refactor db8500-prcmu request_clock() function mfd: Rename db8500-prcmu init function mfd: Fix db5500-prcmu defines mfd: db8500-prcmu voltage domain consumers additions mfd: db8500-prcmu reset code retrieval mfd: db8500-prcmu tweak for modem wakeup mfd: Add db8500-pcmu watchdog accessor functions for watchdog mfd: hwacc power state db8500-prcmu accessor mfd: Add db8500-prcmu accessors for PLL and SGA clock mfd: Move to the new db500 PRCMU API mfd: Create a common interface for dbx500 PRCMU drivers mfd: Initialize DB8500 PRCMU regs ... Fix up trivial conflicts in arch/arm/mach-imx/mach-mx31moboard.c arch/arm/mach-omap2/board-omap3beagle.c arch/arm/mach-u300/include/mach/irqs.h drivers/mfd/wm831x-spi.c
Diffstat (limited to 'drivers/mfd/mc13xxx-core.c')
-rw-r--r--drivers/mfd/mc13xxx-core.c116
1 files changed, 55 insertions, 61 deletions
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 7e4d44bf92ab..e9619acc0237 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -26,20 +26,10 @@ struct mc13xxx {
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)
@@ -136,14 +126,14 @@ EXPORT_SYMBOL(mc13783_to_mc13xxx);
#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 MC13XXX_ADC1 44
+#define MC13XXX_ADC1_ADEN (1 << 0)
+#define MC13XXX_ADC1_RAND (1 << 1)
+#define MC13XXX_ADC1_ADSEL (1 << 3)
+#define MC13XXX_ADC1_ASC (1 << 20)
+#define MC13XXX_ADC1_ADTRIGIGN (1 << 21)
-#define MC13783_ADC2 45
+#define MC13XXX_ADC2 45
#define MC13XXX_NUMREGS 0x3f
@@ -487,7 +477,7 @@ enum mc13xxx_id {
MC13XXX_ID_INVALID,
};
-const char *mc13xxx_chipname[] = {
+static const char *mc13xxx_chipname[] = {
[MC13XXX_ID_MC13783] = "mc13783",
[MC13XXX_ID_MC13892] = "mc13892",
};
@@ -558,8 +548,6 @@ static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx)
return mc13xxx_chipname[devid->driver_data];
}
-#include <linux/mfd/mc13783.h>
-
int mc13xxx_get_flags(struct mc13xxx *mc13xxx)
{
struct mc13xxx_platform_data *pdata =
@@ -569,15 +557,15 @@ int mc13xxx_get_flags(struct mc13xxx *mc13xxx)
}
EXPORT_SYMBOL(mc13xxx_get_flags);
-#define MC13783_ADC1_CHAN0_SHIFT 5
-#define MC13783_ADC1_CHAN1_SHIFT 8
+#define MC13XXX_ADC1_CHAN0_SHIFT 5
+#define MC13XXX_ADC1_CHAN1_SHIFT 8
struct mc13xxx_adcdone_data {
struct mc13xxx *mc13xxx;
struct completion done;
};
-static irqreturn_t mc13783_handler_adcdone(int irq, void *data)
+static irqreturn_t mc13xxx_handler_adcdone(int irq, void *data)
{
struct mc13xxx_adcdone_data *adcdone_data = data;
@@ -588,12 +576,11 @@ static irqreturn_t mc13783_handler_adcdone(int irq, void *data)
return IRQ_HANDLED;
}
-#define MC13783_ADC_WORKING (1 << 0)
+#define MC13XXX_ADC_WORKING (1 << 0)
-int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
+int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, 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 = {
@@ -605,51 +592,51 @@ int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
mc13xxx_lock(mc13xxx);
- if (mc13783->adcflags & MC13783_ADC_WORKING) {
+ if (mc13xxx->adcflags & MC13XXX_ADC_WORKING) {
ret = -EBUSY;
goto out;
}
- mc13783->adcflags |= MC13783_ADC_WORKING;
+ mc13xxx->adcflags |= MC13XXX_ADC_WORKING;
- mc13xxx_reg_read(mc13xxx, MC13783_ADC0, &old_adc0);
+ mc13xxx_reg_read(mc13xxx, MC13XXX_ADC0, &old_adc0);
- adc0 = MC13783_ADC0_ADINC1 | MC13783_ADC0_ADINC2;
- adc1 = MC13783_ADC1_ADEN | MC13783_ADC1_ADTRIGIGN | MC13783_ADC1_ASC;
+ adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2;
+ adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;
if (channel > 7)
- adc1 |= MC13783_ADC1_ADSEL;
+ adc1 |= MC13XXX_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;
+ case MC13XXX_ADC_MODE_TS:
+ adc0 |= MC13XXX_ADC0_ADREFEN | MC13XXX_ADC0_TSMOD0 |
+ MC13XXX_ADC0_TSMOD1;
+ adc1 |= 4 << MC13XXX_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;
+ case MC13XXX_ADC_MODE_SINGLE_CHAN:
+ adc0 |= old_adc0 & MC13XXX_ADC0_TSMOD_MASK;
+ adc1 |= (channel & 0x7) << MC13XXX_ADC1_CHAN0_SHIFT;
+ adc1 |= MC13XXX_ADC1_RAND;
break;
- case MC13783_ADC_MODE_MULT_CHAN:
- adc0 |= old_adc0 & MC13783_ADC0_TSMOD_MASK;
- adc1 |= 4 << MC13783_ADC1_CHAN1_SHIFT;
+ case MC13XXX_ADC_MODE_MULT_CHAN:
+ adc0 |= old_adc0 & MC13XXX_ADC0_TSMOD_MASK;
+ adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
break;
default:
- mc13783_unlock(mc13783);
+ mc13xxx_unlock(mc13xxx);
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);
+ dev_dbg(&mc13xxx->spidev->dev, "%s: request irq\n", __func__);
+ mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
+ mc13xxx_handler_adcdone, __func__, &adcdone_data);
+ mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_ADCDONE);
- mc13xxx_reg_write(mc13xxx, MC13783_ADC0, adc0);
- mc13xxx_reg_write(mc13xxx, MC13783_ADC1, adc1);
+ mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0);
+ mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1);
mc13xxx_unlock(mc13xxx);
@@ -660,27 +647,27 @@ int mc13783_adc_do_conversion(struct mc13783 *mc13783, unsigned int mode,
mc13xxx_lock(mc13xxx);
- mc13xxx_irq_free(mc13xxx, MC13783_IRQ_ADCDONE, &adcdone_data);
+ mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_ADCDONE, &adcdone_data);
if (ret > 0)
for (i = 0; i < 4; ++i) {
ret = mc13xxx_reg_read(mc13xxx,
- MC13783_ADC2, &sample[i]);
+ MC13XXX_ADC2, &sample[i]);
if (ret)
break;
}
- if (mode == MC13783_ADC_MODE_TS)
+ if (mode == MC13XXX_ADC_MODE_TS)
/* restore TSMOD */
- mc13xxx_reg_write(mc13xxx, MC13783_ADC0, old_adc0);
+ mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, old_adc0);
- mc13783->adcflags &= ~MC13783_ADC_WORKING;
+ mc13xxx->adcflags &= ~MC13XXX_ADC_WORKING;
out:
mc13xxx_unlock(mc13xxx);
return ret;
}
-EXPORT_SYMBOL_GPL(mc13783_adc_do_conversion);
+EXPORT_SYMBOL_GPL(mc13xxx_adc_do_conversion);
static int mc13xxx_add_subdevice_pdata(struct mc13xxx *mc13xxx,
const char *format, void *pdata, size_t pdata_size)
@@ -716,6 +703,11 @@ static int mc13xxx_probe(struct spi_device *spi)
enum mc13xxx_id id;
int ret;
+ if (!pdata) {
+ dev_err(&spi->dev, "invalid platform data\n");
+ return -EINVAL;
+ }
+
mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
if (!mc13xxx)
return -ENOMEM;
@@ -763,10 +755,8 @@ err_revision:
if (pdata->flags & MC13XXX_USE_CODEC)
mc13xxx_add_subdevice(mc13xxx, "%s-codec");
- if (pdata->flags & MC13XXX_USE_REGULATOR) {
- mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
- &pdata->regulators, sizeof(pdata->regulators));
- }
+ mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
+ &pdata->regulators, sizeof(pdata->regulators));
if (pdata->flags & MC13XXX_USE_RTC)
mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
@@ -774,10 +764,14 @@ err_revision:
if (pdata->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice(mc13xxx, "%s-ts");
- if (pdata->flags & MC13XXX_USE_LED)
+ if (pdata->leds)
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
pdata->leds, sizeof(*pdata->leds));
+ if (pdata->buttons)
+ mc13xxx_add_subdevice_pdata(mc13xxx, "%s-pwrbutton",
+ pdata->buttons, sizeof(*pdata->buttons));
+
return 0;
}