mfd: da9052: Introduce da9052-irq.c

Create a da9052-irq.c file so that it can handle interrupt related functions.

This is useful for allowing the da9052 drivers to use such functions
when dealing with da9052 interrupts.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 8 insertions, 263 deletions

diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c
index c96cdbc0daff..2153f9bba9ef 100644
--- a/drivers/mfd/da9052-core.c
+++ b/drivers/mfd/da9052-core.c
@@ -15,7 +15,6 @@
 #include <linux/delay.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
-#include <linux/irq.h>
 #include <linux/mfd/core.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -24,16 +23,6 @@
 #include <linux/mfd/da9052/pdata.h>
 #include <linux/mfd/da9052/reg.h>
 
-#define DA9052_NUM_IRQ_REGS             4
-#define DA9052_IRQ_MASK_POS_1           0x01
-#define DA9052_IRQ_MASK_POS_2           0x02
-#define DA9052_IRQ_MASK_POS_3           0x04
-#define DA9052_IRQ_MASK_POS_4           0x08
-#define DA9052_IRQ_MASK_POS_5           0x10
-#define DA9052_IRQ_MASK_POS_6           0x20
-#define DA9052_IRQ_MASK_POS_7           0x40
-#define DA9052_IRQ_MASK_POS_8           0x80
-
 static bool da9052_reg_readable(struct device *dev, unsigned int reg)
 {
         switch (reg) {
@@ -425,15 +414,6 @@ err:
 }
 EXPORT_SYMBOL_GPL(da9052_adc_manual_read);
 
-static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data)
-{
-        struct da9052 *da9052 = irq_data;
-
-        complete(&da9052->done);
-
-        return IRQ_HANDLED;
-}
-
 int da9052_adc_read_temp(struct da9052 *da9052)
 {
         int tbat;
@@ -447,74 +427,6 @@ int da9052_adc_read_temp(struct da9052 *da9052)
 }
 EXPORT_SYMBOL_GPL(da9052_adc_read_temp);
 
-static struct resource da9052_rtc_resource = {
-        .name = "ALM",
-        .start = DA9052_IRQ_ALARM,
-        .end   = DA9052_IRQ_ALARM,
-        .flags = IORESOURCE_IRQ,
-};
-
-static struct resource da9052_onkey_resource = {
-        .name = "ONKEY",
-        .start = DA9052_IRQ_NONKEY,
-        .end   = DA9052_IRQ_NONKEY,
-        .flags = IORESOURCE_IRQ,
-};
-
-static struct resource da9052_bat_resources[] = {
-        {
-                .name = "BATT TEMP",
-                .start = DA9052_IRQ_TBAT,
-                .end   = DA9052_IRQ_TBAT,
-                .flags = IORESOURCE_IRQ,
-        },
-        {
-                .name = "DCIN DET",
-                .start = DA9052_IRQ_DCIN,
-                .end   = DA9052_IRQ_DCIN,
-                .flags = IORESOURCE_IRQ,
-        },
-        {
-                .name = "DCIN REM",
-                .start = DA9052_IRQ_DCINREM,
-                .end   = DA9052_IRQ_DCINREM,
-                .flags = IORESOURCE_IRQ,
-        },
-        {
-                .name = "VBUS DET",
-                .start = DA9052_IRQ_VBUS,
-                .end   = DA9052_IRQ_VBUS,
-                .flags = IORESOURCE_IRQ,
-        },
-        {
-                .name = "VBUS REM",
-                .start = DA9052_IRQ_VBUSREM,
-                .end   = DA9052_IRQ_VBUSREM,
-                .flags = IORESOURCE_IRQ,
-        },
-        {
-                .name = "CHG END",
-                .start = DA9052_IRQ_CHGEND,
-                .end   = DA9052_IRQ_CHGEND,
-                .flags = IORESOURCE_IRQ,
-        },
-};
-
-static struct resource da9052_tsi_resources[] = {
-        {
-                .name = "PENDWN",
-                .start = DA9052_IRQ_PENDOWN,
-                .end   = DA9052_IRQ_PENDOWN,
-                .flags = IORESOURCE_IRQ,
-        },
-        {
-                .name = "TSIRDY",
-                .start = DA9052_IRQ_TSIREADY,
-                .end   = DA9052_IRQ_TSIREADY,
-                .flags = IORESOURCE_IRQ,
-        },
-};
-
 static struct mfd_cell __devinitdata da9052_subdev_info[] = {
         {
                 .name = "da9052-regulator",
@@ -574,13 +486,9 @@ static struct mfd_cell __devinitdata da9052_subdev_info[] = {
         },
         {
                 .name = "da9052-onkey",
-                .resources = &da9052_onkey_resource,
-                .num_resources = 1,
         },
         {
                 .name = "da9052-rtc",
-                .resources = &da9052_rtc_resource,
-                .num_resources = 1,
         },
         {
                 .name = "da9052-gpio",
@@ -602,160 +510,15 @@ static struct mfd_cell __devinitdata da9052_subdev_info[] = {
         },
         {
                 .name = "da9052-tsi",
-                .resources = da9052_tsi_resources,
-                .num_resources = ARRAY_SIZE(da9052_tsi_resources),
         },
         {
                 .name = "da9052-bat",
-                .resources = da9052_bat_resources,
-                .num_resources = ARRAY_SIZE(da9052_bat_resources),
         },
         {
                 .name = "da9052-watchdog",
         },
 };
 
-static struct regmap_irq da9052_irqs[] = {
-        [DA9052_IRQ_DCIN] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_1,
-        },
-        [DA9052_IRQ_VBUS] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_2,
-        },
-        [DA9052_IRQ_DCINREM] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_3,
-        },
-        [DA9052_IRQ_VBUSREM] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_4,
-        },
-        [DA9052_IRQ_VDDLOW] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_5,
-        },
-        [DA9052_IRQ_ALARM] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_6,
-        },
-        [DA9052_IRQ_SEQRDY] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_7,
-        },
-        [DA9052_IRQ_COMP1V2] = {
-                .reg_offset = 0,
-                .mask = DA9052_IRQ_MASK_POS_8,
-        },
-        [DA9052_IRQ_NONKEY] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_1,
-        },
-        [DA9052_IRQ_IDFLOAT] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_2,
-        },
-        [DA9052_IRQ_IDGND] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_3,
-        },
-        [DA9052_IRQ_CHGEND] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_4,
-        },
-        [DA9052_IRQ_TBAT] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_5,
-        },
-        [DA9052_IRQ_ADC_EOM] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_6,
-        },
-        [DA9052_IRQ_PENDOWN] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_7,
-        },
-        [DA9052_IRQ_TSIREADY] = {
-                .reg_offset = 1,
-                .mask = DA9052_IRQ_MASK_POS_8,
-        },
-        [DA9052_IRQ_GPI0] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_1,
-        },
-        [DA9052_IRQ_GPI1] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_2,
-        },
-        [DA9052_IRQ_GPI2] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_3,
-        },
-        [DA9052_IRQ_GPI3] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_4,
-        },
-        [DA9052_IRQ_GPI4] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_5,
-        },
-        [DA9052_IRQ_GPI5] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_6,
-        },
-        [DA9052_IRQ_GPI6] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_7,
-        },
-        [DA9052_IRQ_GPI7] = {
-                .reg_offset = 2,
-                .mask = DA9052_IRQ_MASK_POS_8,
-        },
-        [DA9052_IRQ_GPI8] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_1,
-        },
-        [DA9052_IRQ_GPI9] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_2,
-        },
-        [DA9052_IRQ_GPI10] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_3,
-        },
-        [DA9052_IRQ_GPI11] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_4,
-        },
-        [DA9052_IRQ_GPI12] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_5,
-        },
-        [DA9052_IRQ_GPI13] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_6,
-        },
-        [DA9052_IRQ_GPI14] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_7,
-        },
-        [DA9052_IRQ_GPI15] = {
-                .reg_offset = 3,
-                .mask = DA9052_IRQ_MASK_POS_8,
-        },
-};
-
-static struct regmap_irq_chip da9052_regmap_irq_chip = {
-        .name = "da9052_irq",
-        .status_base = DA9052_EVENT_A_REG,
-        .mask_base = DA9052_IRQ_MASK_A_REG,
-        .ack_base = DA9052_EVENT_A_REG,
-        .num_regs = DA9052_NUM_IRQ_REGS,
-        .irqs = da9052_irqs,
-        .num_irqs = ARRAY_SIZE(da9052_irqs),
-};
-
 struct regmap_config da9052_regmap_config = {
         .reg_bits = 8,
         .val_bits = 8,
@@ -769,15 +532,10 @@ struct regmap_config da9052_regmap_config = {
 };
 EXPORT_SYMBOL_GPL(da9052_regmap_config);
 
-static int da9052_map_irq(struct da9052 *da9052, int irq)
-{
-        return regmap_irq_get_virq(da9052->irq_data, irq);
-}
-
 int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
 {
         struct da9052_pdata *pdata = da9052->dev->platform_data;
-        int ret, i;
+        int ret;
 
         mutex_init(&da9052->auxadc_lock);
         init_completion(&da9052->done);
@@ -787,22 +545,12 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
 
         da9052->chip_id = chip_id;
 
-        ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq,
-                                  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-                                  -1, &da9052_regmap_irq_chip,
-                                  &da9052->irq_data);
-        if (ret < 0) {
-                dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret);
-                goto regmap_err;
+        ret = da9052_irq_init(da9052);
+        if (ret != 0) {
+                dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret);
+                return ret;
         }
 
-        i = da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM);
-        ret = request_threaded_irq(i, NULL, da9052_auxadc_irq,
-                                   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-                                   "adc-irq", da9052);
-        if (ret != 0)
-                dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret);
-
         ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
                               ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
         if (ret) {
@@ -813,18 +561,15 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
         return 0;
 
 err:
-        free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052);
-        regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
-        mfd_remove_devices(da9052->dev);
-regmap_err:
+        da9052_irq_exit(da9052);
+
         return ret;
 }
 
 void da9052_device_exit(struct da9052 *da9052)
 {
-        free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052);
-        regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
         mfd_remove_devices(da9052->dev);
+        da9052_irq_exit(da9052);
 }
 
 MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");