[PATCH 1/3] dt-bindings: iio: humidity: add bindings for HDC100x sensors

[PATCH 1/3] dt-bindings: iio: humidity: add bindings for HDC100x sensors

[Michael Stecklein]

Add the bindings for the family of HDC100x sensors.

Signed-off-by: Michael Stecklein <m-stecklein-l0cyMroinI0@public.gmane.org>
---
 .../devicetree/bindings/iio/humidity/hdc100x.txt         | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/humidity/hdc100x.txt

diff --git a/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
new file mode 100644
index 0000000..6f272fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
@@ -0,0 +1,16 @@
+* HDC100x temperature + humidity sensors
+
+Required properties:
+  - compatible: Should contain one of the following:
+	ti,hdc100x
+	ti,hdc1010
+	ti,hdc1050
+	ti,hdc1080
+  - reg: i2c address of the sensor
+
+Example:
+
+hdc100x@40 {
+	compatible = "ti,hdc100x";
+	reg = <0x40>;
+};
-- 
2.7.4

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[PATCH 2/3] iio: humidity: hdc100x: document compatible HDC10xx devices

[Michael Stecklein]

Include datasheet links, add i2c_device_id entries, and update
kconfig help for compatible HDC10xx devices: HDC1000, HDC1008,
HDC1010, HDC1050, and HDC1080.

Signed-off-by: Michael Stecklein <m-stecklein@ti.com>
---
 drivers/iio/humidity/Kconfig   | 3 ++-
 drivers/iio/humidity/hdc100x.c | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig
index 14b9ce4..2c0fc9a 100644
--- a/drivers/iio/humidity/Kconfig
+++ b/drivers/iio/humidity/Kconfig
@@ -31,7 +31,8 @@ config HDC100X
 	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for the Texas Instruments
-	  HDC1000 and HDC1008 relative humidity and temperature sensors.
+	  HDC1000, HDC1008, HDC1010, HDC1050, and HDC1080 relative
+	  humidity and temperature sensors.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called hdc100x.
diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c
index aa17115..0e5962f 100644
--- a/drivers/iio/humidity/hdc100x.c
+++ b/drivers/iio/humidity/hdc100x.c
@@ -13,6 +13,12 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU General Public License for more details.
  *
+ * Datasheets:
+ * http://www.ti.com/product/HDC1000/datasheet
+ * http://www.ti.com/product/HDC1008/datasheet
+ * http://www.ti.com/product/HDC1010/datasheet
+ * http://www.ti.com/product/HDC1050/datasheet
+ * http://www.ti.com/product/HDC1080/datasheet
  */
 
 #include <linux/delay.h>
@@ -414,6 +420,9 @@ static int hdc100x_remove(struct i2c_client *client)
 
 static const struct i2c_device_id hdc100x_id[] = {
 	{ "hdc100x", 0 },
+	{ "hdc1010", 0 },
+	{ "hdc1050", 0 },
+	{ "hdc1080", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, hdc100x_id);
-- 
2.7.4

[PATCH 3/3] iio: humidity: hdc100x: add match table and device id's

[Michael Stecklein]

Add of_match_table and point it to a list of compatible device tree
device id's.

Signed-off-by: Michael Stecklein <m-stecklein@ti.com>
---
 drivers/iio/humidity/hdc100x.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c
index 0e5962f..659d7da 100644
--- a/drivers/iio/humidity/hdc100x.c
+++ b/drivers/iio/humidity/hdc100x.c
@@ -427,9 +427,19 @@ static const struct i2c_device_id hdc100x_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, hdc100x_id);
 
+static const struct of_device_id hdc100x_dt_ids[] = {
+	{ .compatible = "ti,hdc100x" },
+	{ .compatible = "ti,hdc1010" },
+	{ .compatible = "ti,hdc1050" },
+	{ .compatible = "ti,hdc1080" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, hdc100x_dt_ids);
+
 static struct i2c_driver hdc100x_driver = {
 	.driver = {
 		.name	= "hdc100x",
+		.of_match_table = of_match_ptr(hdc100x_dt_ids),
 	},
 	.probe = hdc100x_probe,
 	.remove = hdc100x_remove,
-- 
2.7.4

Re: [PATCH 1/3] dt-bindings: iio: humidity: add bindings for HDC100x sensors

[Rob Herring]

On Mon, Jun 12, 2017 at 09:49:08AM -0500, Michael Stecklein wrote:
> Add the bindings for the family of HDC100x sensors.
> 
> Signed-off-by: Michael Stecklein <m-stecklein@ti.com>
> ---
>  .../devicetree/bindings/iio/humidity/hdc100x.txt         | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
> 
> diff --git a/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
> new file mode 100644
> index 0000000..6f272fa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/humidity/hdc100x.txt
> @@ -0,0 +1,16 @@
> +* HDC100x temperature + humidity sensors
> +
> +Required properties:
> +  - compatible: Should contain one of the following:
> +	ti,hdc100x

No wildcards in compatible strings please.

> +	ti,hdc1010
> +	ti,hdc1050
> +	ti,hdc1080
> +  - reg: i2c address of the sensor
> +
> +Example:
> +
> +hdc100x@40 {
> +	compatible = "ti,hdc100x";
> +	reg = <0x40>;
> +};
> -- 
> 2.7.4
>