linux-kernel - [PATCH 05/17] iio: light: us5182d: Add OF device ID table

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Message-Id: <20170313195917.12190-6-javier@osg.samsung.com>
Date:   Mon, 13 Mar 2017 16:59:05 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-iio@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
        Gregor Boirie <gregor.boirie@...rot.com>,
        Sanchayan Maity <maitysanchayan@...il.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Jonathan Cameron <jic23@...nel.org>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>
Subject: [PATCH 05/17] iio: light: us5182d: 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/iio/light/us5182d.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/iio/light/us5182d.c b/drivers/iio/light/us5182d.c
index 18cf2e29e4d5..eefdbf4a6495 100644
--- a/drivers/iio/light/us5182d.c
+++ b/drivers/iio/light/us5182d.c
@@ -972,10 +972,17 @@ static const struct i2c_device_id us5182d_id[] = {
 
 MODULE_DEVICE_TABLE(i2c, us5182d_id);
 
+static const struct of_device_id us5182d_of_match[] = {
+	{ .compatible = "upisemi,usd5182" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, us5182d_of_match);
+
 static struct i2c_driver us5182d_driver = {
 	.driver = {
 		.name = US5182D_DRV_NAME,
 		.pm = &us5182d_pm_ops,
+		.of_match_table = of_match_ptr(us5182d_of_match),
 		.acpi_match_table = ACPI_PTR(us5182d_acpi_match),
 	},
 	.probe = us5182d_probe,
-- 
2.9.3