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authorChanwoo Choi <cw00.choi@samsung.com>2012-07-02 04:03:00 +0400
committerSamuel Ortiz <sameo@linux.intel.com>2012-07-09 02:16:13 +0400
commitdca1a71e4108a0a9051a653d885297e9d1cc656c (patch)
tree50f90ec0cae92c063b6de94ee1b71e8fb91cf585 /drivers/extcon
parentb41511f713ccaef666e450fae8cb18909897fe4e (diff)
downloadlinux-dca1a71e4108a0a9051a653d885297e9d1cc656c.tar.xz
extcon: Add support irq domain for MAX8997 muic
This patch add support irq domain for Maxim MAX8997 muic instead of irq_base in platform data and max8997 driver private data are instead. It is tested on TRATS board. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/Kconfig2
-rw-r--r--drivers/extcon/extcon-max8997.c29
2 files changed, 19 insertions, 12 deletions
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index 29c5cf852efc..bf6b2eae5751 100644
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -23,7 +23,7 @@ config EXTCON_GPIO
config EXTCON_MAX8997
tristate "MAX8997 EXTCON Support"
- depends on MFD_MAX8997
+ depends on MFD_MAX8997 && IRQ_DOMAIN
help
If you say yes here you get support for the MUIC device of
Maxim MAX8997 PMIC. The MAX8997 MUIC is a USB port accessory
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index a4ed30bd9a41..ef9090a4271d 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -26,6 +26,7 @@
#include <linux/mfd/max8997.h>
#include <linux/mfd/max8997-private.h>
#include <linux/extcon.h>
+#include <linux/irqdomain.h>
#define DEV_NAME "max8997-muic"
@@ -77,6 +78,7 @@
struct max8997_muic_irq {
unsigned int irq;
const char *name;
+ unsigned int virq;
};
static struct max8997_muic_irq muic_irqs[] = {
@@ -343,12 +345,10 @@ static void max8997_muic_irq_work(struct work_struct *work)
{
struct max8997_muic_info *info = container_of(work,
struct max8997_muic_info, irq_work);
- struct max8997_dev *max8997 = i2c_get_clientdata(info->muic);
u8 status[2];
u8 adc, chg_type;
-
- int irq_type = info->irq - max8997->irq_base;
- int ret;
+ int irq_type = 0;
+ int i, ret;
mutex_lock(&info->mutex);
@@ -363,6 +363,10 @@ static void max8997_muic_irq_work(struct work_struct *work)
dev_dbg(info->dev, "%s: STATUS1:0x%x, 2:0x%x\n", __func__,
status[0], status[1]);
+ for (i = 0 ; i < ARRAY_SIZE(muic_irqs) ; i++)
+ if (info->irq == muic_irqs[i].virq)
+ irq_type = muic_irqs[i].irq;
+
switch (irq_type) {
case MAX8997_MUICIRQ_ADC:
adc = status[0] & STATUS1_ADC_MASK;
@@ -448,11 +452,15 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev)
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
struct max8997_muic_irq *muic_irq = &muic_irqs[i];
+ int virq = 0;
+
+ virq = irq_create_mapping(max8997->irq_domain, muic_irq->irq);
+ if (!virq)
+ goto err_irq;
+ muic_irq->virq = virq;
- ret = request_threaded_irq(pdata->irq_base + muic_irq->irq,
- NULL, max8997_muic_irq_handler,
- 0, muic_irq->name,
- info);
+ ret = request_threaded_irq(virq, NULL,max8997_muic_irq_handler,
+ 0, muic_irq->name, info);
if (ret) {
dev_err(&pdev->dev,
"failed: irq request (IRQ: %d,"
@@ -496,7 +504,7 @@ err_extcon:
kfree(info->edev);
err_irq:
while (--i >= 0)
- free_irq(pdata->irq_base + muic_irqs[i].irq, info);
+ free_irq(muic_irqs[i].virq, info);
kfree(info);
err_kfree:
return ret;
@@ -505,11 +513,10 @@ err_kfree:
static int __devexit max8997_muic_remove(struct platform_device *pdev)
{
struct max8997_muic_info *info = platform_get_drvdata(pdev);
- struct max8997_dev *max8997 = i2c_get_clientdata(info->muic);
int i;
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
- free_irq(max8997->irq_base + muic_irqs[i].irq, info);
+ free_irq(muic_irqs[i].virq, info);
cancel_work_sync(&info->irq_work);
extcon_dev_unregister(info->edev);