mfd: mc13xxx: Use regmap irq framework for interrupts

This patch convert mc13xxx MFD driver to use regmap irq framework
for interrupt registration.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/Kconfig

@@ -187,6 +187,7 @@ config MFD_MC13XXX
 	tristate
 	depends on (SPI_MASTER || I2C)
 	select MFD_CORE
+	select REGMAP_IRQ
 	help
 	  Enable support for the Freescale MC13783 and MC13892 PMICs.
 	  This driver provides common support for accessing the device,

drivers/mfd/mc13xxx.h

@@ -13,7 +13,9 @@
 #include <linux/regmap.h>
 #include <linux/mfd/mc13xxx.h>
 
-#define MC13XXX_NUMREGS 0x3f
+#define MC13XXX_NUMREGS		0x3f
+#define MC13XXX_IRQ_REG_CNT	2
+#define MC13XXX_IRQ_PER_REG	24
 
 struct mc13xxx;
 
@@ -33,13 +35,14 @@ struct mc13xxx {
 	struct device *dev;
 	const struct mc13xxx_variant *variant;
 
+	struct regmap_irq irqs[MC13XXX_IRQ_PER_REG * MC13XXX_IRQ_REG_CNT];
+	struct regmap_irq_chip irq_chip;
+	struct regmap_irq_chip_data *irq_data;
+
 	struct mutex lock;
 	int irq;
 	int flags;
 
-	irq_handler_t irqhandler[MC13XXX_NUM_IRQ];
-	void *irqdata[MC13XXX_NUM_IRQ];
-
 	int adcflags;
 };
 

include/linux/mfd/mc13783.h

@@ -86,6 +86,5 @@
 #define MC13783_IRQ_HSL		43
 #define MC13783_IRQ_ALSPTH	44
 #define MC13783_IRQ_AHSSHORT	45
-#define MC13783_NUM_IRQ		MC13XXX_NUM_IRQ
 
 #endif /* ifndef __LINUX_MFD_MC13783_H */

include/linux/mfd/mc13xxx.h

@@ -23,15 +23,10 @@ int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
 
 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);
 
@@ -39,6 +34,22 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
 		unsigned int mode, unsigned int channel,
 		u8 ato, bool atox, unsigned int *sample);
 
+/* Deprecated calls */
+static inline int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq)
+{
+	return 0;
+}
+
+static inline int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,
+					       irq_handler_t handler,
+					       const char *name, void *dev)
+{
+	return mc13xxx_irq_request(mc13xxx, irq, handler, name, dev);
+}
+
+int mc13xxx_irq_mask(struct mc13xxx *mc13xxx, int irq);
+int mc13xxx_irq_unmask(struct mc13xxx *mc13xxx, int irq);
+
 #define MC13783_AUDIO_RX0	36
 #define MC13783_AUDIO_RX1	37
 #define MC13783_AUDIO_TX	38
@@ -68,8 +79,6 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
 #define MC13XXX_IRQ_THWARNH	37
 #define MC13XXX_IRQ_CLK		38
 
-#define MC13XXX_NUM_IRQ		46
-
 struct regulator_init_data;
 
 struct mc13xxx_regulator_init_data {