linux-kernel - [PATCH v2] hwmon: (tmp401) Add of_match

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Message-ID: <20220502091942.1083067-1-camel.guo@axis.com>
Date:   Mon, 2 May 2022 11:19:42 +0200
From:   Camel Guo <camel.guo@...s.com>
To:     Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>
CC:     Camel Guo <camel.guo@...s.com>, <linux-hwmon@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel@...s.com>
Subject: [PATCH v2] hwmon: (tmp401) Add of_match_table

When tmp401 is built as kernel module, it won't be automatically loaded
even through there is a device node in the devicetree. e.g:
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;

      sensor@4c {
        compatible = "ti,tmp401";
        reg = <0x4c>;
      };
    };
In order to make sure it is loaded automatically, this commit adds
of_match_table for tmp401.

Signed-off-by: Camel Guo <camel.guo@...s.com>
---

Notes:
    v2:
     - Put evidence and circumstances in commit message

 drivers/hwmon/tmp401.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index b86d9df7105d..52c9e7d3f2ae 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -708,10 +708,21 @@ static int tmp401_probe(struct i2c_client *client)
 	return 0;
 }
 
+static const struct of_device_id __maybe_unused tmp4xx_of_match[] = {
+	{ .compatible = "ti,tmp401", },
+	{ .compatible = "ti,tmp411", },
+	{ .compatible = "ti,tmp431", },
+	{ .compatible = "ti,tmp432", },
+	{ .compatible = "ti,tmp435", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tmp4xx_of_match);
+
 static struct i2c_driver tmp401_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "tmp401",
+		.of_match_table = of_match_ptr(tmp4xx_of_match),
 	},
 	.probe_new	= tmp401_probe,
 	.id_table	= tmp401_id,

base-commit: 38d741cb70b30741c0e802cbed7bd9cf4fd15fa4
-- 
2.30.2