linux-kernel - [PATCH 3/7] Staging: iio: adt7316: Add of_device

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Date:   Sat, 17 Nov 2018 04:25:37 +0530
From:   Shreeya Patel <shreeya.patel23498@...il.com>
To:     lars@...afoo.de, Michael.Hennerich@...log.com, jic23@...nel.org,
        knaack.h@....de, pmeerw@...erw.net, gregkh@...uxfoundation.org,
        linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] Staging: iio: adt7316: Add of_device_id table

When the kernel starts up, it kicks off compiled-in drivers
that match “compatible” entries it finds in the device tree.
At a later stage (when /lib/modules is available), all kernel modules
that match “compatible” entries in the device tree are loaded.
Hence to be able to use device tree for ADT7316, add of_device_id
table which specifies the supported devices through compatible
property.
Note that there is a fall back path in i2c that will result
in i2c_device_id table being used if there is no of_devcie_id table.

Signed-off-by: Shreeya Patel <shreeya.patel23498@...il.com>
---
 drivers/staging/iio/addac/adt7316-i2c.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c
index 473e5e34ec00..d4b5060c18ee 100644
--- a/drivers/staging/iio/addac/adt7316-i2c.c
+++ b/drivers/staging/iio/addac/adt7316-i2c.c
@@ -126,6 +126,18 @@ static const struct i2c_device_id adt7316_i2c_id[] = {
 
 MODULE_DEVICE_TABLE(i2c, adt7316_i2c_id);
 
+static const struct of_device_id adt7316_of_match[] = {
+	{ .compatible = "adi,adt7316" },
+	{ .compatible = "adi,adt7317" },
+	{ .compatible = "adi,adt7318" },
+	{ .compatible = "adi,adt7516" },
+	{ .compatible = "adi,adt7517" },
+	{ .compatible = "adi,adt7519" },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(of, adt7316_of_match);
+
 static struct i2c_driver adt7316_driver = {
 	.driver = {
 		.name = "adt7316",
-- 
2.17.1