dt-bindings: hwmon: add compatible for max1619

PATCH Applied Alan Tull 3 participants 15 messages Sep 11, 2017 – Oct 2, 2017

Subsystems (2)

Device tree bindings Hardware monitoring

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Alan Tull

author

2017-09-11 19:16 UTC #0 lore raw

PATCH 1/2 dt-bindings: hwmon: add compatible for max1619

Add new device tree bindings document for max1619 device including a new compatible string.

Signed-off-by Alan Tull <[email protected]>

Cc Jean Delvare <[email protected]>

Cc Guenter Roeck <[email protected]>

Cc Rob Herring <[email protected]>

Cc Mark Rutland <[email protected]>

---
 Documentation/devicetree/bindings/hwmon/max1619.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/max1619.txt

Documentation/devicetree/bindings/hwmon/max1619.txt new file +12 -0

new file mode 100644
index 0000000..c70dbbe
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+	temp@4c {
+		compatible = "maxim,max1619";
+		reg = <0x4c>;
+	};

Signature · 1 line

2.7.4

Alan Tull

author

2017-09-11 19:16 UTC #1 lore raw

PATCH 2/2 hwmon: add dt binding for max1619

Add new device tree binding for max1619.

Signed-off-by Alan Tull <[email protected]>

Cc Jean Delvare <[email protected]>

Cc Guenter Roeck <[email protected]>

Cc Rob Herring <[email protected]>

Cc Mark Rutland <[email protected]>

---
 drivers/hwmon/max1619.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

drivers/hwmon/max1619.c +10 -0

index a182789..76d9669 100644
@@ -303,10 +303,20 @@ static const struct i2c_device_id max1619_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max1619_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id max1619_of_match[] = {
+	{ .compatible = "maxim,max1619", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, max1619_of_match);
+#endif
+
 static struct i2c_driver max1619_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "max1619",
+		.of_match_table = of_match_ptr(max1619_of_match),
 	},
 	.probe		= max1619_probe,
 	.id_table	= max1619_id,

Signature · 1 line

2.7.4

Guenter Roeck

maintainer

2017-09-11 19:58 UTC #3 lore raw

Re: [PATCH 2/2] hwmon: add dt binding for max1619

In reply to Alan Tull

Quoted 3 lines · Alan Tull

Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>

Technically that should already work, without explicit binding, or did the i2c core change lately ?

Guenter

Quoted 36 lines

Cc Jean Delvare <[email protected]>

Cc Guenter Roeck <[email protected]>

Cc Rob Herring <[email protected]>

Cc Mark Rutland <[email protected]>

---
 drivers/hwmon/max1619.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

drivers/hwmon/max1619.c +10 -0

index a182789..76d9669 100644
@@ -303,10 +303,20 @@ static const struct i2c_device_id max1619_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max1619_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id max1619_of_match[] = {
+	{ .compatible = "maxim,max1619", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, max1619_of_match);
+#endif
+
 static struct i2c_driver max1619_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "max1619",
+		.of_match_table = of_match_ptr(max1619_of_match),
 	},
 	.probe		= max1619_probe,
 	.id_table	= max1619_id,

Signature · 1 line

2.7.4

Rob Herring

maintainer

2017-09-18 21:11 UTC #5 lore raw

Re: [PATCH 2/2] hwmon: add dt binding for max1619

In reply to Guenter Roeck

Quoted 7 lines · Guenter Roeck

Quoted 3 lines · Alan Tull
Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>
Technically that should already work, without explicit binding, or did the i2c core change lately ?

There was some work in that direction IIRC.

We don't really want to rely on that behavior and should have DT match strings.

Rob
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Alan Tull

author

2017-09-19 18:11 UTC #6 lore raw

Re: [PATCH 2/2] hwmon: add dt binding for max1619

Quoted 10 lines · Rob Herring

Quoted 7 lines · Guenter Roeck
Quoted 3 lines · Alan Tull
Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>
Technically that should already work, without explicit binding, or did the i2c core change lately ?
There was some work in that direction IIRC.

Yes, after Guenter replied I tried it without this patch and it worked. i2c drivers can have a 'detect' function that can check part id, etc. If detection succeeds, it will fill in the device name in i2c_board_info->type and the i2c-core will enumerate using that.

Alan

Quoted 5 lines

We don't really want to rely on that behavior and should have DT match strings.
Rob

Rob Herring

maintainer

2017-09-19 19:35 UTC #7 lore raw

Re: [PATCH 2/2] hwmon: add dt binding for max1619

Quoted 10 lines · Alan Tull

Quoted 9 lines · Rob Herring
Quoted 7 lines · Guenter Roeck
Quoted 3 lines · Alan Tull
Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>
Technically that should already work, without explicit binding, or did the i2c core change lately ?

Quoted 6 lines

Quoted 1 line
There was some work in that direction IIRC.
Yes, after Guenter replied I tried it without this patch and it worked. i2c drivers can have a 'detect' function that can check part id, etc. If detection succeeds, it will fill in the device name in i2c_board_info->type and the i2c-core will enumerate using that.

Right, I expected it still worked, but am saying we don't want to rely on that behavior and introduce new places relying on it. Otherwise, the driver will match on say "rob,max1619" as well. The detect function is the really old way to probe devices IIRC. The function to look at is i2c_of_match_device. We want OF style match, not a match with i2c_of_match_device_sysfs which strips the vendor prefix from the compatible.

Rob

Alan Tull

author

2017-09-28 18:12 UTC #8 lore raw

Re: [PATCH 2/2] hwmon: add dt binding for max1619

Quoted 18 lines · Rob Herring

Quoted 10 lines · Alan Tull
Quoted 9 lines · Rob Herring
Quoted 7 lines · Guenter Roeck
Quoted 3 lines · Alan Tull
Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>
Technically that should already work, without explicit binding, or did the i2c core change lately ?
Quoted 6 lines
Quoted 1 line
There was some work in that direction IIRC.
Yes, after Guenter replied I tried it without this patch and it worked. i2c drivers can have a 'detect' function that can check part id, etc. If detection succeeds, it will fill in the device name in i2c_board_info->type and the i2c-core will enumerate using that.

Quoted 7 lines

Right, I expected it still worked, but am saying we don't want to rely on that behavior and introduce new places relying on it. Otherwise, the driver will match on say "rob,max1619" as well. The detect function is the really old way to probe devices IIRC. The function to look at is i2c_of_match_device. We want OF style match, not a match with i2c_of_match_device_sysfs which strips the vendor prefix from the compatible.

OK, well my patch is out there if someone wants to take it.

Alan

Quoted 2 lines

Rob

Guenter Roeck

maintainer Applied

2017-10-01 14:13 UTC #9 lore raw

Re: [2/2] hwmon: add dt binding for max1619

In reply to Alan Tull

Quoted 7 lines · Alan Tull

Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>
Cc Jean Delvare <jdelvare-IBi9RG/[email protected]>
Cc Guenter Roeck <[email protected]>
Cc Rob Herring <[email protected]>
Cc Mark Rutland <[email protected]>

Applied to hwmon-next.

Thanks,
Guenter

Quoted 19 lines

---
 drivers/hwmon/max1619.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

drivers/hwmon/max1619.c +7 -0

index a182789..76d9669 100644
@@ -303,10 +303,20 @@ static const struct i2c_device_id max1619_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max1619_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id max1619_of_match[] = {
+	{ .compatible = "maxim,max1619", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, max1619_of_match);

drivers/hwmon/max1619.c static const struct i2c_device_id max1619_id[] = { · line 322

Quoted 10 lines

drivers/hwmon/max1619.c +3 -0

+#endif
+
 static struct i2c_driver max1619_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "max1619",
+		.of_match_table = of_match_ptr(max1619_of_match),
 	},
 	.probe		= max1619_probe,
 	.id_table	= max1619_id,

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Alan Tull

author

2017-10-02 14:30 UTC #10 lore raw

Re: [2/2] hwmon: add dt binding for max1619

Quoted 10 lines · Guenter Roeck

Quoted 7 lines · Alan Tull
Add new device tree binding for max1619.
Signed-off-by Alan Tull <[email protected]>
Cc Jean Delvare <jdelvare-IBi9RG/[email protected]>
Cc Guenter Roeck <[email protected]>
Cc Rob Herring <[email protected]>
Cc Mark Rutland <[email protected]>
Applied to hwmon-next.

Thanks!
Alan

Quoted 25 lines

Thanks,
Guenter

Quoted 21 lines

---
 drivers/hwmon/max1619.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

drivers/hwmon/max1619.c +9 -0

index a182789..76d9669 100644
@@ -303,10 +303,20 @@ static const struct i2c_device_id max1619_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max1619_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id max1619_of_match[] = {
+     { .compatible = "maxim,max1619", },
+     {},
+};
+
+MODULE_DEVICE_TABLE(of, max1619_of_match);
+#endif
+

Quoted 8 lines

drivers/hwmon/max1619.c static const struct i2c_device_id max1619_id[] = { · line 322

Quoted 8 lines

drivers/hwmon/max1619.c +1 -0

 static struct i2c_driver max1619_driver = {
      .class          = I2C_CLASS_HWMON,
      .driver = {
              .name   = "max1619",
+             .of_match_table = of_match_ptr(max1619_of_match),
      },
      .probe          = max1619_probe,
      .id_table       = max1619_id,

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Alan Tull

author

2017-09-11 19:33 UTC #11 lore raw

In reply to Alan Tull

On Mon, Sep 11, 2017 at 2:16 PM, Alan Tull <[email protected]> wrote:

Add Oleksij Rempel

Quoted 34 lines

Add new device tree bindings document for max1619 device including a new compatible string.
Signed-off-by Alan Tull <[email protected]>
Cc Jean Delvare <[email protected]>
Cc Guenter Roeck <[email protected]>
Cc Rob Herring <[email protected]>
Cc Mark Rutland <[email protected]>
---
 Documentation/devicetree/bindings/hwmon/max1619.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/max1619.txt
Documentation/devicetree/bindings/hwmon/max1619.txt new file +12 -1
new file mode 100644
index 0000000..c70dbbe
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+       temp@4c {
+               compatible = "maxim,max1619";
+               reg = <0x4c>;
+       };
--
2.7.4

Alan Tull

author

2017-09-11 21:18 UTC #12 lore raw

On Mon, Sep 11, 2017 at 2:33 PM, Alan Tull <[email protected]> wrote:

Forget this - Guenter has pointed out that this patch is not needed, as the i2c layer handles this without needing the compatible added.

Alan

Quoted 38 lines · Alan Tull

Add Oleksij Rempel
Quoted 34 lines
Add new device tree bindings document for max1619 device including a new compatible string.
Signed-off-by Alan Tull <[email protected]>
Cc Jean Delvare <[email protected]>
Cc Guenter Roeck <[email protected]>
Cc Rob Herring <[email protected]>
Cc Mark Rutland <[email protected]>
---
 Documentation/devicetree/bindings/hwmon/max1619.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/max1619.txt
Documentation/devicetree/bindings/hwmon/max1619.txt new file +12 -1
new file mode 100644
index 0000000..c70dbbe
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+       temp@4c {
+               compatible = "maxim,max1619";
+               reg = <0x4c>;
+       };
--
2.7.4

Rob Herring

maintainer Acked-by

2017-09-18 21:12 UTC #13 lore raw

Quoted 4 lines · Alan Tull

On Mon, Sep 11, 2017 at 2:33 PM, Alan Tull <[email protected]> wrote:
Forget this - Guenter has pointed out that this patch is not needed, as the i2c layer handles this without needing the compatible added.

The binding is needed regardless.

This could be in trivial-devices.txt instead. Either way,

Acked-by Rob Herring <[email protected]>

Rob

Quoted 41 lines

Alan
Quoted 38 lines · Alan Tull
Add Oleksij Rempel
Quoted 34 lines
Add new device tree bindings document for max1619 device including a new compatible string.
Signed-off-by Alan Tull <[email protected]>
Cc Jean Delvare <[email protected]>
Cc Guenter Roeck <[email protected]>
Cc Rob Herring <[email protected]>
Cc Mark Rutland <[email protected]>
---
 Documentation/devicetree/bindings/hwmon/max1619.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/max1619.txt
Documentation/devicetree/bindings/hwmon/max1619.txt new file +12 -1
new file mode 100644
index 0000000..c70dbbe
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+       temp@4c {
+               compatible = "maxim,max1619";
+               reg = <0x4c>;
+       };
--
2.7.4

Guenter Roeck

maintainer Applied

2017-10-01 14:11 UTC #14 lore raw

In reply to Alan Tull

Quoted 9 lines · Alan Tull

Add new device tree bindings document for max1619 device including a new compatible string.
Signed-off-by Alan Tull <[email protected]>
Cc Jean Delvare <[email protected]>
Cc Guenter Roeck <[email protected]>
Cc Rob Herring <[email protected]>
Cc Mark Rutland <[email protected]>
Acked-by Rob Herring <[email protected]>

Applied to hwmon-next.

Thanks,
Guenter

Quoted 23 lines

---
 Documentation/devicetree/bindings/hwmon/max1619.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/max1619.txt

Documentation/devicetree/bindings/hwmon/max1619.txt new file +12 -0

new file mode 100644
index 0000000..c70dbbe
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+	temp@4c {
+		compatible = "maxim,max1619";
+		reg = <0x4c>;
+	};