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authorDaniel Ribeiro <drwyrm@gmail.com>2009-06-23 12:32:11 -0300
committerSamuel Ortiz <sameo@linux.intel.com>2009-09-17 09:46:45 +0200
commit9f7b07d6cc3ed14783c9427a5b2a69794eb2de64 (patch)
treec3793ad2c4318afa51f044f27c307017797a7d98 /drivers/mfd/ezx-pcap.c
parentdfc3aa7221f50bf3d05c67b826414ab290b95c46 (diff)
downloadlinux-linaro-stable-9f7b07d6cc3ed14783c9427a5b2a69794eb2de64.tar.gz
mfd: Introduce irq_to_pcap()
Export an irq_to_pcap function to get pcap irq number, for the keypad driver. Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/ezx-pcap.c')
-rw-r--r--drivers/mfd/ezx-pcap.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index c1de4afa89a6..de7e63706abb 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -107,10 +107,11 @@ int ezx_pcap_read(struct pcap_chip *pcap, u8 reg_num, u32 *value)
EXPORT_SYMBOL_GPL(ezx_pcap_read);
/* IRQ */
-static inline unsigned int irq2pcap(struct pcap_chip *pcap, int irq)
+int irq_to_pcap(struct pcap_chip *pcap, int irq)
{
- return 1 << (irq - pcap->irq_base);
+ return irq - pcap->irq_base;
}
+EXPORT_SYMBOL_GPL(irq_to_pcap);
int pcap_to_irq(struct pcap_chip *pcap, int irq)
{
@@ -122,7 +123,7 @@ static void pcap_mask_irq(unsigned int irq)
{
struct pcap_chip *pcap = get_irq_chip_data(irq);
- pcap->msr |= irq2pcap(pcap, irq);
+ pcap->msr |= 1 << irq_to_pcap(pcap, irq);
queue_work(pcap->workqueue, &pcap->msr_work);
}
@@ -130,7 +131,7 @@ static void pcap_unmask_irq(unsigned int irq)
{
struct pcap_chip *pcap = get_irq_chip_data(irq);
- pcap->msr &= ~irq2pcap(pcap, irq);
+ pcap->msr &= ~(1 << irq_to_pcap(pcap, irq));
queue_work(pcap->workqueue, &pcap->msr_work);
}