linux-kernel - [PATCH 12/19] hwmon: (lm95245) Add OF device ID table

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Message-Id: <20170224131313.953-13-javier@osg.samsung.com>
Date:   Fri, 24 Feb 2017 10:13:05 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        linux-hwmon@...r.kernel.org, Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 12/19] hwmon: (lm95245) Add OF device ID table

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
---

 drivers/hwmon/lm95245.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hwmon/lm95245.c b/drivers/hwmon/lm95245.c
index a3bfd88752ca..27cb06d65594 100644
--- a/drivers/hwmon/lm95245.c
+++ b/drivers/hwmon/lm95245.c
@@ -622,10 +622,18 @@ static const struct i2c_device_id lm95245_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, lm95245_id);
 
+static const struct of_device_id lm95245_of_match[] = {
+	{ .compatible = "national,lm95235" },
+	{ .compatible = "national,lm95245" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, lm95245_of_match);
+
 static struct i2c_driver lm95245_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm95245",
+		.of_match_table = of_match_ptr(lm95245_of_match),
 	},
 	.probe		= lm95245_probe,
 	.id_table	= lm95245_id,
-- 
2.9.3