hwmon: Drop non-functional I2C_CLASS_HWMON support for drivers w/o detect()
authorHeiner Kallweit <hkallweit1@gmail.com>
Sat, 27 Jan 2024 17:45:00 +0000 (18:45 +0100)
committerGuenter Roeck <linux@roeck-us.net>
Sun, 11 Feb 2024 21:43:08 +0000 (13:43 -0800)
Class-based I2C probing requires detect() and address_list both
to be set in the I2C client driver, see checks in i2c_detect().
It's misleading to declare I2C_CLASS_HWMON support if the driver
doesn't implement detect().
Class-based probing is a legacy mechanism, in addition apparently
nobody ever noticed that class-based probing has been non-functional
in both drivers from the very beginning. So drop the fragments of
class-based probing support.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/13ce7c11-a958-4892-ada9-faf5bfdcb89d@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Documentation/hwmon/emc2305.rst
drivers/hwmon/adt7410.c
drivers/hwmon/emc2305.c

index 2403dba..d0bfffe 100644 (file)
@@ -6,7 +6,6 @@ Kernel driver emc2305
 Supported chips:
    Microchip EMC2305, EMC2303, EMC2302, EMC2301
 
-   Addresses scanned: I2C 0x27, 0x2c, 0x2d, 0x2e, 0x2f, 0x4c, 0x4d
    Prefixes: 'emc2305'
 
    Datasheet: Publicly available at the Microchip website :
index 9525067..fd214d9 100644 (file)
@@ -95,14 +95,12 @@ static const struct i2c_device_id adt7410_ids[] = {
 MODULE_DEVICE_TABLE(i2c, adt7410_ids);
 
 static struct i2c_driver adt7410_driver = {
-       .class          = I2C_CLASS_HWMON,
        .driver = {
                .name   = "adt7410",
                .pm     = pm_sleep_ptr(&adt7x10_dev_pm_ops),
        },
        .probe          = adt7410_i2c_probe,
        .id_table       = adt7410_ids,
-       .address_list   = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
 };
 module_i2c_driver(adt7410_driver);
 
index 29f0e49..6ef733c 100644 (file)
@@ -12,9 +12,6 @@
 #include <linux/platform_data/emc2305.h>
 #include <linux/thermal.h>
 
-static const unsigned short
-emc2305_normal_i2c[] = { 0x27, 0x2c, 0x2d, 0x2e, 0x2f, 0x4c, 0x4d, I2C_CLIENT_END };
-
 #define EMC2305_REG_DRIVE_FAIL_STATUS  0x27
 #define EMC2305_REG_VENDOR             0xfe
 #define EMC2305_FAN_MAX                        0xff
@@ -611,14 +608,12 @@ static void emc2305_remove(struct i2c_client *client)
 }
 
 static struct i2c_driver emc2305_driver = {
-       .class  = I2C_CLASS_HWMON,
        .driver = {
                .name = "emc2305",
        },
        .probe = emc2305_probe,
        .remove   = emc2305_remove,
        .id_table = emc2305_ids,
-       .address_list = emc2305_normal_i2c,
 };
 
 module_i2c_driver(emc2305_driver);