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Groups > linux.kernel > #1622626 > unrolled thread

[PATCH 1/2] hwmon: (lm85) Remove unused I2C devices driver_data

Started byJavier Martinez Canillas <javier@osg.samsung.com>
First post2017-04-13 02:20 +0200
Last post2017-04-13 02:20 +0200
Articles 2 — 1 participant

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  [PATCH 1/2] hwmon: (lm85) Remove unused I2C devices driver_data Javier Martinez Canillas <javier@osg.samsung.com> - 2017-04-13 02:20 +0200
    [PATCH 2/2] hwmon: (lm85) Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-04-13 02:20 +0200

#1622626 — [PATCH 1/2] hwmon: (lm85) Remove unused I2C devices driver_data

FromJavier Martinez Canillas <javier@osg.samsung.com>
Date2017-04-13 02:20 +0200
Subject[PATCH 1/2] hwmon: (lm85) Remove unused I2C devices driver_data
Message-ID<tvAEq-3qZ-13@gated-at.bofh.it>
The I2C device ID entries set a .driver_data but this data is never
looked up by the driver. So don't set it and also remove the enum.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
---

 drivers/hwmon/lm87.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c
index 04a7a1ddb030..c0766e7392d3 100644
--- a/drivers/hwmon/lm87.c
+++ b/drivers/hwmon/lm87.c
@@ -75,8 +75,6 @@
 
 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
 
-enum chips { lm87, adm1024 };
-
 /*
  * The LM87 registers
  */
@@ -981,8 +979,8 @@ static int lm87_probe(struct i2c_client *client, const struct i2c_device_id *id)
  */
 
 static const struct i2c_device_id lm87_id[] = {
-	{ "lm87", lm87 },
-	{ "adm1024", adm1024 },
+	{ "lm87", 0 },
+	{ "adm1024", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, lm87_id);
-- 
2.9.3

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#1622634 — [PATCH 2/2] hwmon: (lm85) Add OF device ID table

FromJavier Martinez Canillas <javier@osg.samsung.com>
Date2017-04-13 02:20 +0200
Subject[PATCH 2/2] hwmon: (lm85) Add OF device ID table
Message-ID<tvAEq-3qZ-27@gated-at.bofh.it>
In reply to#1622626
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@osg.samsung.com>

---
Hello,

I should had included this patch in series [0] but it seems that I didn't.

[0]: https://lkml.org/lkml/2017/2/24/360

Best regards,
Javier

 drivers/hwmon/lm87.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c
index c0766e7392d3..85290c9aa46f 100644
--- a/drivers/hwmon/lm87.c
+++ b/drivers/hwmon/lm87.c
@@ -985,10 +985,18 @@ static const struct i2c_device_id lm87_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, lm87_id);
 
+static const struct of_device_id lm87_of_match[] = {
+	{ .compatible = "adi,adm1024" },
+	{ .compatible = "ti,lm87" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, lm87_of_match);
+
 static struct i2c_driver lm87_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "lm87",
+		.of_match_table = lm87_of_match,
 	},
 	.probe		= lm87_probe,
 	.id_table	= lm87_id,
-- 
2.9.3

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