mfd: Update irq handler in max8925

Update thread irq handler. Simply the interface of using thread irq.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 97 insertions, 42 deletions

diff --git a/include/linux/mfd/max8925.h b/include/linux/mfd/max8925.h
index b72dbe174d51..18c1844ed472 100644
--- a/include/linux/mfd/max8925.h
+++ b/include/linux/mfd/max8925.h
@@ -12,6 +12,7 @@
 #ifndef __LINUX_MFD_MAX8925_H
 #define __LINUX_MFD_MAX8925_H
 
+#include <linux/mutex.h>
 #include <linux/interrupt.h>
 
 /* Unified sub device IDs for MAX8925 */
@@ -39,6 +40,30 @@ enum {
         MAX8925_ID_LDO18,
         MAX8925_ID_LDO19,
         MAX8925_ID_LDO20,
+        MAX8925_ID_MAX,
+};
+
+enum {
+        /*
+         * Charging current threshold trigger going from fast charge
+         * to TOPOFF charge. From 5% to 20% of fasting charging current.
+         */
+        MAX8925_TOPOFF_THR_5PER,
+        MAX8925_TOPOFF_THR_10PER,
+        MAX8925_TOPOFF_THR_15PER,
+        MAX8925_TOPOFF_THR_20PER,
+};
+
+enum {
+        /* Fast charging current */
+        MAX8925_FCHG_85MA,
+        MAX8925_FCHG_300MA,
+        MAX8925_FCHG_460MA,
+        MAX8925_FCHG_600MA,
+        MAX8925_FCHG_700MA,
+        MAX8925_FCHG_800MA,
+        MAX8925_FCHG_900MA,
+        MAX8925_FCHG_1000MA,
 };
 
 /* Charger registers */
@@ -46,12 +71,13 @@ enum {
 #define MAX8925_CHG_IRQ2                (0x7f)
 #define MAX8925_CHG_IRQ1_MASK           (0x80)
 #define MAX8925_CHG_IRQ2_MASK           (0x81)
+#define MAX8925_CHG_STATUS              (0x82)
 
 /* GPM registers */
 #define MAX8925_SYSENSEL                (0x00)
 #define MAX8925_ON_OFF_IRQ1             (0x01)
 #define MAX8925_ON_OFF_IRQ1_MASK        (0x02)
-#define MAX8925_ON_OFF_STAT             (0x03)
+#define MAX8925_ON_OFF_STATUS           (0x03)
 #define MAX8925_ON_OFF_IRQ2             (0x0d)
 #define MAX8925_ON_OFF_IRQ2_MASK        (0x0e)
 #define MAX8925_RESET_CNFG              (0x0f)
@@ -59,12 +85,18 @@ enum {
 /* Touch registers */
 #define MAX8925_TSC_IRQ                 (0x00)
 #define MAX8925_TSC_IRQ_MASK            (0x01)
+#define MAX8925_TSC_CNFG1               (0x02)
+#define MAX8925_ADC_SCHED               (0x10)
 #define MAX8925_ADC_RES_END             (0x6f)
 
+#define MAX8925_NREF_OK                 (1 << 4)
+
 /* RTC registers */
-#define MAX8925_RTC_STATUS              (0x1a)
+#define MAX8925_ALARM0_CNTL             (0x18)
+#define MAX8925_ALARM1_CNTL             (0x19)
 #define MAX8925_RTC_IRQ                 (0x1c)
 #define MAX8925_RTC_IRQ_MASK            (0x1d)
+#define MAX8925_MPL_CNTL                (0x1e)
 
 /* WLED registers */
 #define MAX8925_WLED_MODE_CNTL          (0x84)
@@ -126,45 +158,48 @@ enum {
 #define TSC_IRQ_MASK                    (0x03)
 #define RTC_IRQ_MASK                    (0x0c)
 
-#define MAX8925_NUM_IRQ                 (32)
+#define MAX8925_GPM_NUM_IRQ             (40)
+#define MAX8925_ADC_NUM_IRQ             (8)
+#define MAX8925_NUM_IRQ                 (MAX8925_GPM_NUM_IRQ    \
+                                        + MAX8925_ADC_NUM_IRQ)
+
+#define MAX8925_MAX_REGULATOR           (23)
 
 #define MAX8925_NAME_SIZE               (32)
 
+/* IRQ definitions */
 enum {
-        MAX8925_INVALID = 0,
-        MAX8925_RTC,
-        MAX8925_ADC,
-        MAX8925_GPM,    /* general power management */
-        MAX8925_MAX,
+        MAX8925_IRQ_VCHG_DC_OVP,
+        MAX8925_IRQ_VCHG_DC_F,
+        MAX8925_IRQ_VCHG_DC_R,
+        MAX8925_IRQ_VCHG_USB_OVP,
+        MAX8925_IRQ_VCHG_USB_F,
+        MAX8925_IRQ_VCHG_USB_R,
+        MAX8925_IRQ_VCHG_THM_OK_R,
+        MAX8925_IRQ_VCHG_THM_OK_F,
+        MAX8925_IRQ_VCHG_SYSLOW_F,
+        MAX8925_IRQ_VCHG_SYSLOW_R,
+        MAX8925_IRQ_VCHG_RST,
+        MAX8925_IRQ_VCHG_DONE,
+        MAX8925_IRQ_VCHG_TOPOFF,
+        MAX8925_IRQ_VCHG_TMR_FAULT,
+        MAX8925_IRQ_GPM_RSTIN,
+        MAX8925_IRQ_GPM_MPL,
+        MAX8925_IRQ_GPM_SW_3SEC,
+        MAX8925_IRQ_GPM_EXTON_F,
+        MAX8925_IRQ_GPM_EXTON_R,
+        MAX8925_IRQ_GPM_SW_1SEC,
+        MAX8925_IRQ_GPM_SW_F,
+        MAX8925_IRQ_GPM_SW_R,
+        MAX8925_IRQ_GPM_SYSCKEN_F,
+        MAX8925_IRQ_GPM_SYSCKEN_R,
+        MAX8925_IRQ_RTC_ALARM1,
+        MAX8925_IRQ_RTC_ALARM0,
+        MAX8925_IRQ_TSC_STICK,
+        MAX8925_IRQ_TSC_NSTICK,
+        MAX8925_NR_IRQS,
 };
 
-#define MAX8925_IRQ_VCHG_OVP            (0)
-#define MAX8925_IRQ_VCHG_F              (1)
-#define MAX8925_IRQ_VCHG_R              (2)
-#define MAX8925_IRQ_VCHG_THM_OK_R       (8)
-#define MAX8925_IRQ_VCHG_THM_OK_F       (9)
-#define MAX8925_IRQ_VCHG_BATTLOW_F      (10)
-#define MAX8925_IRQ_VCHG_BATTLOW_R      (11)
-#define MAX8925_IRQ_VCHG_RST            (12)
-#define MAX8925_IRQ_VCHG_DONE           (13)
-#define MAX8925_IRQ_VCHG_TOPOFF         (14)
-#define MAX8925_IRQ_VCHG_TMR_FAULT      (15)
-#define MAX8925_IRQ_GPM_RSTIN           (16)
-#define MAX8925_IRQ_GPM_MPL             (17)
-#define MAX8925_IRQ_GPM_SW_3SEC         (18)
-#define MAX8925_IRQ_GPM_EXTON_F         (19)
-#define MAX8925_IRQ_GPM_EXTON_R         (20)
-#define MAX8925_IRQ_GPM_SW_1SEC         (21)
-#define MAX8925_IRQ_GPM_SW_F            (22)
-#define MAX8925_IRQ_GPM_SW_R            (23)
-#define MAX8925_IRQ_GPM_SYSCKEN_F       (24)
-#define MAX8925_IRQ_GPM_SYSCKEN_R       (25)
-
-#define MAX8925_IRQ_TSC_STICK           (0)
-#define MAX8925_IRQ_TSC_NSTICK          (1)
-
-#define MAX8925_MAX_REGULATOR           (23)
-
 struct max8925_irq {
         irq_handler_t           handler;
         void                    *data;
@@ -172,14 +207,16 @@ struct max8925_irq {
 
 struct max8925_chip {
         struct device           *dev;
+        struct i2c_client       *i2c;
+        struct i2c_client       *adc;
+        struct i2c_client       *rtc;
+        struct max8925_irq      irqs[MAX8925_NUM_IRQ];
         struct mutex            io_lock;
         struct mutex            irq_lock;
-        struct i2c_client       *i2c;
-        struct max8925_irq      irq[MAX8925_NUM_IRQ];
 
-        const char              *name;
-        int                     chip_id;
-        int                     chip_irq;
+        int                     irq_base;
+        int                     core_irq;
+        int                     tsc_irq;
 };
 
 struct max8925_backlight_pdata {
@@ -192,13 +229,25 @@ struct max8925_touch_pdata {
         unsigned int            flags;
 };
 
+struct max8925_power_pdata {
+        int             (*set_charger)(int);
+        unsigned        batt_detect:1;
+        unsigned        topoff_threshold:2;
+        unsigned        fast_charge:3;  /* charge current */
+};
+
+/*
+ * irq_base: stores IRQ base number of MAX8925 in platform
+ * tsc_irq: stores IRQ number of MAX8925 TSC
+ */
 struct max8925_platform_data {
         struct max8925_backlight_pdata  *backlight;
         struct max8925_touch_pdata      *touch;
+        struct max8925_power_pdata      *power;
         struct regulator_init_data      *regulator[MAX8925_MAX_REGULATOR];
 
-        int     chip_id;
-        int     chip_irq;
+        int             irq_base;
+        int             tsc_irq;
 };
 
 extern int max8925_reg_read(struct i2c_client *, int);
@@ -208,6 +257,12 @@ extern int max8925_bulk_write(struct i2c_client *, int, int, unsigned char *);
 extern int max8925_set_bits(struct i2c_client *, int, unsigned char,
                         unsigned char);
 
+extern int max8925_request_irq(struct max8925_chip *, int,
+                        irq_handler_t, void *);
+extern int max8925_free_irq(struct max8925_chip *, int);
+extern int max8925_mask_irq(struct max8925_chip *, int);
+extern int max8925_unmask_irq(struct max8925_chip *, int);
+
 extern int max8925_device_init(struct max8925_chip *,
                                 struct max8925_platform_data *);
 extern void max8925_device_exit(struct max8925_chip *);