4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Josua Mayer <josua@xxxxxxxxxxxxx> [ Upstream commit 3f003fda98a7a8d5f399057d92e6ed56b468657c ] Add of_match table for "ti,amc6821" compatible string. This fixes automatic driver loading by userspace when using device-tree, and if built as a module like major linux distributions do. While devices probe just fine with i2c_device_id table, userspace can't match the "ti,amc6821" compatible string from dt with the plain "amc6821" device id. As a result, the kernel module can not be loaded. Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Josua Mayer <josua@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20240307-amc6821-of-match-v1-1-5f40464a3110@xxxxxxxxxxxxx [groeck: Cleaned up patch description] Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/hwmon/amc6821.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 46b4e35fd5555..b562337df7b3c 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -1003,10 +1003,21 @@ static const struct i2c_device_id amc6821_id[] = { MODULE_DEVICE_TABLE(i2c, amc6821_id); +static const struct of_device_id __maybe_unused amc6821_of_match[] = { + { + .compatible = "ti,amc6821", + .data = (void *)amc6821, + }, + { } +}; + +MODULE_DEVICE_TABLE(of, amc6821_of_match); + static struct i2c_driver amc6821_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "amc6821", + .of_match_table = of_match_ptr(amc6821_of_match), }, .probe = amc6821_probe, .id_table = amc6821_id, -- 2.43.0
