linux-kernel - [PATCH 3.18 12/69] usb: phy: isp1301: Add OF device ID table

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Message-Id: <20171218152737.755265175@linuxfoundation.org>
Date:   Mon, 18 Dec 2017 16:47:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Javier Martinez Canillas <javier@....samsung.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 3.18 12/69] usb: phy: isp1301: Add OF device ID table

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Javier Martinez Canillas <javier@....samsung.com>


[ Upstream commit fd567653bdb908009b650f079bfd4b63169e2ac4 ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/phy/phy-isp1301.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/usb/phy/phy-isp1301.c
+++ b/drivers/usb/phy/phy-isp1301.c
@@ -32,6 +32,12 @@ static const struct i2c_device_id isp130
 	{ }
 };
 
+static const struct of_device_id isp1301_of_match[] = {
+	{.compatible = "nxp,isp1301" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, isp1301_of_match);
+
 static struct i2c_client *isp1301_i2c_client;
 
 static int __isp1301_write(struct isp1301 *isp, u8 reg, u8 value, u8 clear)
@@ -129,6 +135,7 @@ static int isp1301_remove(struct i2c_cli
 static struct i2c_driver isp1301_driver = {
 	.driver = {
 		.name = DRV_NAME,
+		.of_match_table = of_match_ptr(isp1301_of_match),
 	},
 	.probe = isp1301_probe,
 	.remove = isp1301_remove,