Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: Clean up max8997 IRQ namespace
  mfd: Fold irq_set_chip/irq_set_handler
  mfd: Cleanup irq namespace
  mfd: twl6030: Cleanup interrupt handling
  mfd: twl4030: Cleanup interrupt handling
  mfd: mx8925: Remove irq_desc leftovers
  mfd: htc-i2cpld: Cleanup interrupt handling
  mfd: htc-egpio: Cleanup interrupt handling
  mfd: ezx-pcap: Remvove open coded irq handling
  mfd: 88pm860x: Remove unused irq_desc leftovers
  mfd: asic3: Cleanup irq handling
  mfd: Select MFD_CORE if TPS6105X driver is configured
  mfd: Add MODULE_DEVICE_TABLE to rdc321x-southbridge
  mfd: Add MAX8997/8966 IRQ control
  mfd: Constify i2c_device_id tables
  mfd: OLPC: Clean up names to match what OLPC actually uses
  mfd: Add mfd_clone_cell(), convert cs5535-mfd/olpc-xo1 to it

3 files changed, 44 insertions, 11 deletions

diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 1408bf8eed5..ad1b19aa650 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -63,6 +63,24 @@ extern int mfd_cell_enable(struct platform_device *pdev);
 extern int mfd_cell_disable(struct platform_device *pdev);
 
 /*
+ * "Clone" multiple platform devices for a single cell. This is to be used
+ * for devices that have multiple users of a cell.  For example, if an mfd
+ * driver wants the cell "foo" to be used by a GPIO driver, an MTD driver,
+ * and a platform driver, the following bit of code would be use after first
+ * calling mfd_add_devices():
+ *
+ * const char *fclones[] = { "foo-gpio", "foo-mtd" };
+ * err = mfd_clone_cells("foo", fclones, ARRAY_SIZE(fclones));
+ *
+ * Each driver (MTD, GPIO, and platform driver) would then register
+ * platform_drivers for "foo-mtd", "foo-gpio", and "foo", respectively.
+ * The cell's .enable/.disable hooks should be used to deal with hardware
+ * resource contention.
+ */
+extern int mfd_clone_cell(const char *cell, const char **clones,
+		size_t n_clones);
+
+/*
  * Given a platform device that's been created by mfd_add_devices(), fetch
  * the mfd_cell that created it.
  */
@@ -87,13 +105,4 @@ extern int mfd_add_devices(struct device *parent, int id,
 
 extern void mfd_remove_devices(struct device *parent);
 
-/*
- * For MFD drivers with clients sharing access to resources, these create
- * multiple platform devices per cell.  Contention handling must still be
- * handled via drivers (ie, with enable/disable hooks).
- */
-extern int mfd_shared_platform_driver_register(struct platform_driver *drv,
-		const char *cellname);
-extern void mfd_shared_platform_driver_unregister(struct platform_driver *drv);
-
 #endif
diff --git a/include/linux/mfd/max8997-private.h b/include/linux/mfd/max8997-private.h
index 93a9477e075..69d1010e2e5 100644
--- a/include/linux/mfd/max8997-private.h
+++ b/include/linux/mfd/max8997-private.h
@@ -24,6 +24,8 @@
 
 #include <linux/i2c.h>
 
+#define MAX8997_REG_INVALID	(0xff)
+
 enum max8997_pmic_reg {
 	MAX8997_REG_PMIC_ID0	= 0x00,
 	MAX8997_REG_PMIC_ID1	= 0x01,
@@ -313,6 +315,7 @@ enum max8997_irq {
 #define MAX8997_REG_BUCK2DVS(x)	(MAX8997_REG_BUCK2DVS1 + (x) - 1)
 #define MAX8997_REG_BUCK5DVS(x)	(MAX8997_REG_BUCK5DVS1 + (x) - 1)
 
+#define MAX8997_NUM_GPIO	12
 struct max8997_dev {
 	struct device *dev;
 	struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */
@@ -324,11 +327,19 @@ struct max8997_dev {
 	int type;
 	struct platform_device *battery; /* battery control (not fuel gauge) */
 
+	int irq;
+	int ono;
+	int irq_base;
 	bool wakeup;
+	struct mutex irqlock;
+	int irq_masks_cur[MAX8997_IRQ_GROUP_NR];
+	int irq_masks_cache[MAX8997_IRQ_GROUP_NR];
 
 	/* For hibernation */
 	u8 reg_dump[MAX8997_REG_PMIC_END + MAX8997_MUIC_REG_END +
 		MAX8997_HAPTIC_REG_END];
+
+	bool gpio_status[MAX8997_NUM_GPIO];
 };
 
 enum max8997_types {
@@ -336,6 +347,10 @@ enum max8997_types {
 	TYPE_MAX8966,
 };
 
+extern int max8997_irq_init(struct max8997_dev *max8997);
+extern void max8997_irq_exit(struct max8997_dev *max8997);
+extern int max8997_irq_resume(struct max8997_dev *max8997);
+
 extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
 extern int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count,
 				u8 *buf);
@@ -344,4 +359,10 @@ extern int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count,
 				u8 *buf);
 extern int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
 
+#define MAX8997_GPIO_INT_BOTH	(0x3 << 4)
+#define MAX8997_GPIO_INT_RISE	(0x2 << 4)
+#define MAX8997_GPIO_INT_FALL	(0x1 << 4)
+
+#define MAX8997_GPIO_INT_MASK	(0x3 << 4)
+#define MAX8997_GPIO_DATA_MASK	(0x1 << 2)
 #endif /*  __LINUX_MFD_MAX8997_PRIV_H */
diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h
index cb671b3451b..60931d08942 100644
--- a/include/linux/mfd/max8997.h
+++ b/include/linux/mfd/max8997.h
@@ -78,8 +78,11 @@ struct max8997_regulator_data {
 };
 
 struct max8997_platform_data {
-	bool wakeup;
-	/* IRQ: Not implemented */
+	/* IRQ */
+	int irq_base;
+	int ono;
+	int wakeup;
+
 	/* ---- PMIC ---- */
 	struct max8997_regulator_data *regulators;
 	int num_regulators;