iio: si7020: Add devicetree support and trivial bindings

This adds devicetree support for the si7020 iio driver. Since it works
well without requiring any additional property, its compatible string is
added to the trivial i2c devices bindings list.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 Documentation/devicetree/bindings/i2c/trivial-devices.txt |  1 +
 drivers/iio/humidity/si7020.c                             | 11 ++++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

On 25/10/16 20:20, Paul Kocialkowski wrote:
> This adds devicetree support for the si7020 iio driver. Since it works
> well without requiring any additional property, its compatible string is
> added to the trivial i2c devices bindings list.
> 
> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Applied to the togreg branch of iio.git - initially pushed out as tesitng
for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  Documentation/devicetree/bindings/i2c/trivial-devices.txt |  1 +
>  drivers/iio/humidity/si7020.c                             | 11 ++++++++++-
>  2 files changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
> index 5c70ce9..6afba26 100644
> --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
> +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
> @@ -145,6 +145,7 @@ ricoh,rv5c387a		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
>  samsung,24ad0xd1	S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power)
>  sgx,vz89x		SGX Sensortech VZ89X Sensors
>  sii,s35390a		2-wire CMOS real-time clock
> +silabs,si7020		Relative Humidity and Temperature Sensors
>  skyworks,sky81452	Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply
>  st,24c256		i2c serial eeprom  (24cxx)
>  st,m41t00		Serial real-time clock (RTC)
> diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c
> index ffc2ccf..345a765 100644
> --- a/drivers/iio/humidity/si7020.c
> +++ b/drivers/iio/humidity/si7020.c
> @@ -154,8 +154,17 @@ static const struct i2c_device_id si7020_id[] = {
>  };
>  MODULE_DEVICE_TABLE(i2c, si7020_id);
>  
> +static const struct of_device_id si7020_dt_ids[] = {
> +	{ .compatible = "silabs,si7020" },
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, si7020_dt_ids);
> +
>  static struct i2c_driver si7020_driver = {
> -	.driver.name	= "si7020",
> +	.driver = {
> +		.name = "si7020",
> +		.of_match_table = of_match_ptr(si7020_dt_ids),
> +	},
>  	.probe		= si7020_probe,
>  	.id_table	= si7020_id,
>  };
> 

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On Tue, Oct 25, 2016 at 09:20:10PM +0200, Paul Kocialkowski wrote:
> This adds devicetree support for the si7020 iio driver. Since it works
> well without requiring any additional property, its compatible string is
> added to the trivial i2c devices bindings list.
> 
> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
> ---
>  Documentation/devicetree/bindings/i2c/trivial-devices.txt |  1 +
>  drivers/iio/humidity/si7020.c                             | 11 ++++++++++-
>  2 files changed, 11 insertions(+), 1 deletion(-)

Acked-by: Rob Herring <robh@kernel.org>
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