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mfd: Introduce irq_to_pcap()

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Export an irq_to_pcap function to get pcap irq number, for the keypad driver.

Signed-off-by: Daniel Ribeiro <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Daniel Ribeiro 2009-06-23 12:32:11 -03:00 • committed by Samuel Ortiz
commit 9f7b07d6cc
2 changed files with 6 additions and 4 deletions
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9
drivers/mfd/ezx-pcap.c
View file

@ -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);
}