linux-kernel - [RFC PATCH] hwmon: (jc42) Add I2C_CLASS

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Message-ID: <20160704191908.GA9056@d830.WORKGROUP>
Date:	Mon, 4 Jul 2016 12:19:28 -0700
From:	Alison Schofield <amsfield22@...il.com>
To:	linux@...ck-us.net
Cc:	Jean Delvare <jdelvare@...e.com>,
	"open list:JC42.4 TEMPERATURE SENSOR DRIVER" 
	<linux-hwmon@...r.kernel.org>, linux-kernel@...r.kernel.org,
	daniel.baluta@...il.com
Subject: [RFC PATCH] hwmon: (jc42) Add I2C_CLASS_HWMON to detection class

In 2011, commit 774466add7c810fd7e4c8bcf41995b6799608880 changed
the detection class of these chips to I2C_CLASS_SPD based on this
premise: "makes more sense because these chips always live on
memory modules"

Today these chips have applications beyond memory modules. 

Add I2C_CLASS_HWMON as an additional detection class to allow
detection by hwmon class i2c adapters.

Alternative is to replace the SPD w HWMON class, but that carries
risk for existing usage.

Signed-off-by: Alison Schofield <amsfield22@...il.com>
Cc: Daniel Baluta <daniel.baluta@...il.com>
---
 drivers/hwmon/jc42.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 9887d32..1537ba0 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -538,7 +538,7 @@ static const struct i2c_device_id jc42_id[] = {
 MODULE_DEVICE_TABLE(i2c, jc42_id);
 
 static struct i2c_driver jc42_driver = {
-	.class		= I2C_CLASS_SPD,
+	.class		= I2C_CLASS_SPD | I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "jc42",
 		.pm = JC42_DEV_PM_OPS,
-- 
2.1.4