linux-kernel - [PATCH 2/2] regulator: ltc3676: Add OF device ID table

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Message-Id: <20170221142905.29156-2-javier@osg.samsung.com>
Date:   Tue, 21 Feb 2017 11:29:05 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH 2/2] regulator: ltc3676: 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/regulator/ltc3676.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/regulator/ltc3676.c b/drivers/regulator/ltc3676.c
index 503cd90eba39..662ee05ea44d 100644
--- a/drivers/regulator/ltc3676.c
+++ b/drivers/regulator/ltc3676.c
@@ -406,9 +406,16 @@ static const struct i2c_device_id ltc3676_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, ltc3676_i2c_id);
 
+static const struct of_device_id ltc3676_of_match[] = {
+	{ .compatible = "lltc,ltc3676" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, ltc3676_of_match);
+
 static struct i2c_driver ltc3676_driver = {
 	.driver = {
 		.name = DRIVER_NAME,
+		.of_match_table = of_match_ptr(ltc3676_of_match),
 	},
 	.probe = ltc3676_regulator_probe,
 	.id_table = ltc3676_i2c_id,
-- 
2.9.3