linux-kernel - [PATCH AUTOSEL for 4.4 001/101] usb: phy: isp1301: Add OF device ID table

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Message-ID: <20171207155005.5852-1-alexander.levin@verizon.com>
Date:   Thu, 7 Dec 2017 15:50:12 +0000
From:   alexander.levin@...izon.com
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        alexander.levin@...izon.com
Subject: [PATCH AUTOSEL for 4.4 001/101] usb: phy: isp1301: Add OF device ID
 table

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>
---
 drivers/usb/phy/phy-isp1301.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c
index db68156568e6..b3b33cf7ddf6 100644
--- a/drivers/usb/phy/phy-isp1301.c
+++ b/drivers/usb/phy/phy-isp1301.c
@@ -33,6 +33,12 @@ static const struct i2c_device_id isp1301_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, isp1301_id);
 
+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)
@@ -130,6 +136,7 @@ static int isp1301_remove(struct i2c_client *client)
 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,
-- 
2.11.0