[PATCH] i2c: revert "i2c: core: Allow drivers to disable i2c-core irq mapping"

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

This manually reverts commit d1d84bb95364ed604015c2b788caaf3dbca0262f.
The only user has gone two years ago with commit 589edb56b424 ("ACPI /
scan: Create platform device for INT33FE ACPI nodes") and no new user
has showed up. Remove and hope we will never need it again.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

Build tested only. Looking for Hans' opinion here.

 drivers/i2c/i2c-core-base.c | 6 +++---
 include/linux/i2c.h         | 3 ---
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 26f03a14a478..dc43242a85ba 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -319,11 +319,9 @@ static int i2c_device_probe(struct device *dev)
 	if (!client)
 		return 0;
 
-	driver = to_i2c_driver(dev->driver);
-
 	client->irq = client->init_irq;
 
-	if (!client->irq && !driver->disable_i2c_core_irq_mapping) {
+	if (!client->irq) {
 		int irq = -ENOENT;
 
 		if (client->flags & I2C_CLIENT_HOST_NOTIFY) {
@@ -349,6 +347,8 @@ static int i2c_device_probe(struct device *dev)
 		client->irq = irq;
 	}
 
+	driver = to_i2c_driver(dev->driver);
+
 	/*
 	 * An I2C ID table is not mandatory, if and only if, a suitable OF
 	 * or ACPI ID table is supplied for the probing device.
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index b8b8963f8bb9..098405df431f 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -231,7 +231,6 @@ enum i2c_alert_protocol {
  * @detect: Callback for device detection
  * @address_list: The I2C addresses to probe (for detect)
  * @clients: List of detected clients we created (for i2c-core use only)
- * @disable_i2c_core_irq_mapping: Tell the i2c-core to not do irq-mapping
  *
  * The driver.owner field should be set to the module owner of this driver.
  * The driver.name field should be set to the name of this driver.
@@ -290,8 +289,6 @@ struct i2c_driver {
 	int (*detect)(struct i2c_client *client, struct i2c_board_info *info);
 	const unsigned short *address_list;
 	struct list_head clients;
-
-	bool disable_i2c_core_irq_mapping;
 };
 #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
 
-- 
2.27.0