diff mbox

[v9,2/8] ARM: dt: Binding documentation for imx25 GCQ

Message ID 1449431542-1892-3-git-send-email-mpa@pengutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Markus Pargmann Dec. 6, 2015, 7:52 p.m. UTC
The documentation describes the bindings for the imx25 GCQ unit which is
essentially a generic conversion queue using the imx25 ADC.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---

Notes:
    Changes in v9:
     - Added the dt-bindings header to this patch instead of the driver
    
    Changes in v6:
     - Changed bindings to use adc-refp and adc-refn. Also a bit of cleanup in the
       setup routine.
    
    Changes in v5:
     - Fixed locking
     - Removed module owner

 .../devicetree/bindings/iio/adc/fsl,imx25-gcq.txt  | 58 ++++++++++++++++++++++
 include/dt-bindings/iio/adc/fsl-imx25-gcq.h        | 18 +++++++
 2 files changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
 create mode 100644 include/dt-bindings/iio/adc/fsl-imx25-gcq.h

Comments

Rob Herring Dec. 7, 2015, 5:39 p.m. UTC | #1
On Sun, Dec 06, 2015 at 08:52:15PM +0100, Markus Pargmann wrote:
> The documentation describes the bindings for the imx25 GCQ unit which is
> essentially a generic conversion queue using the imx25 ADC.
> 
> Signed-off-by: Markus Pargmann <mpa@pengutronix.de>

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

> ---
> 
> Notes:
>     Changes in v9:
>      - Added the dt-bindings header to this patch instead of the driver
>     
>     Changes in v6:
>      - Changed bindings to use adc-refp and adc-refn. Also a bit of cleanup in the
>        setup routine.
>     
>     Changes in v5:
>      - Fixed locking
>      - Removed module owner
> 
>  .../devicetree/bindings/iio/adc/fsl,imx25-gcq.txt  | 58 ++++++++++++++++++++++
>  include/dt-bindings/iio/adc/fsl-imx25-gcq.h        | 18 +++++++
>  2 files changed, 76 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
>  create mode 100644 include/dt-bindings/iio/adc/fsl-imx25-gcq.h
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
> new file mode 100644
> index 000000000000..b0866d36a307
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
> @@ -0,0 +1,58 @@
> +Freescale i.MX25 ADC GCQ device
> +
> +This is a generic conversion queue device that can convert any of the
> +analog inputs using the ADC unit of the i.MX25.
> +
> +Required properties:
> + - compatible: Should be "fsl,imx25-gcq".
> + - reg: Should be the register range of the module.
> + - interrupts: Should be the interrupt number of the module.
> +   Typically this is <1>.
> + - interrupt-parent: phandle to the tsadc module of the i.MX25.
> + - #address-cells: Should be <1> (setting for the subnodes)
> + - #size-cells: Should be <0> (setting for the subnodes)
> +
> +Optional properties:
> + - vref-ext-supply: The regulator supplying the ADC reference voltage.
> +   Required when at least one subnode uses the this reference.
> + - vref-xp-supply: The regulator supplying the ADC reference voltage on pin XP.
> +   Required when at least one subnode uses this reference.
> + - vref-yp-supply: The regulator supplying the ADC reference voltage on pin YP.
> +   Required when at least one subnode uses this reference.
> +
> +Sub-nodes:
> +Optionally you can define subnodes which define the reference voltage
> +for the analog inputs.
> +
> +Required properties for subnodes:
> + - reg: Should be the number of the analog input.
> +     0: xp
> +     1: yp
> +     2: xn
> +     3: yn
> +     4: wiper
> +     5: inaux0
> +     6: inaux1
> +     7: inaux2
> +Optional properties for subnodes:
> + - fsl,adc-refp: specifies the positive reference input as defined in
> +     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
> + - fsl,adc-refn: specifies the negative reference input as defined in
> +     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
> +
> +Example:
> +
> +	adc: adc@50030800 {
> +		compatible = "fsl,imx25-gcq";
> +		reg = <0x50030800 0x60>;
> +		interrupt-parent = <&tscadc>;
> +		interrupts = <1>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		inaux@5 {
> +			reg = <5>;
> +			fsl,adc-refp = <MX25_ADC_REFP_INT>;
> +			fsl,adc-refn = <MX25_ADC_REFN_NGND>;
> +		};
> +	};
> diff --git a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
> new file mode 100644
> index 000000000000..87abdd4a7674
> --- /dev/null
> +++ b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
> @@ -0,0 +1,18 @@
> +/*
> + * This header provides constants for configuring the I.MX25 ADC
> + */
> +
> +#ifndef _DT_BINDINGS_IIO_ADC_FS_IMX25_GCQ_H
> +#define _DT_BINDINGS_IIO_ADC_FS_IMX25_GCQ_H
> +
> +#define MX25_ADC_REFP_YP	0 /* YP voltage reference */
> +#define MX25_ADC_REFP_XP	1 /* XP voltage reference */
> +#define MX25_ADC_REFP_EXT	2 /* External voltage reference */
> +#define MX25_ADC_REFP_INT	3 /* Internal voltage reference */
> +
> +#define MX25_ADC_REFN_XN	0 /* XN ground reference */
> +#define MX25_ADC_REFN_YN	1 /* YN ground reference */
> +#define MX25_ADC_REFN_NGND	2 /* Internal ground reference */
> +#define MX25_ADC_REFN_NGND2	3 /* External ground reference */
> +
> +#endif
> -- 
> 2.6.2
> 
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Jonathan Cameron Dec. 12, 2015, 5:03 p.m. UTC | #2
On 07/12/15 17:39, Rob Herring wrote:
> On Sun, Dec 06, 2015 at 08:52:15PM +0100, Markus Pargmann wrote:
>> The documentation describes the bindings for the imx25 GCQ unit which is
>> essentially a generic conversion queue using the imx25 ADC.
>>
>> Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
> 
> Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
> 
>> ---
>>
>> Notes:
>>     Changes in v9:
>>      - Added the dt-bindings header to this patch instead of the driver
>>     
>>     Changes in v6:
>>      - Changed bindings to use adc-refp and adc-refn. Also a bit of cleanup in the
>>        setup routine.
>>     
>>     Changes in v5:
>>      - Fixed locking
>>      - Removed module owner
>>
>>  .../devicetree/bindings/iio/adc/fsl,imx25-gcq.txt  | 58 ++++++++++++++++++++++
>>  include/dt-bindings/iio/adc/fsl-imx25-gcq.h        | 18 +++++++
>>  2 files changed, 76 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
>>  create mode 100644 include/dt-bindings/iio/adc/fsl-imx25-gcq.h
>>
>> diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
>> new file mode 100644
>> index 000000000000..b0866d36a307
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
>> @@ -0,0 +1,58 @@
>> +Freescale i.MX25 ADC GCQ device
>> +
>> +This is a generic conversion queue device that can convert any of the
>> +analog inputs using the ADC unit of the i.MX25.
>> +
>> +Required properties:
>> + - compatible: Should be "fsl,imx25-gcq".
>> + - reg: Should be the register range of the module.
>> + - interrupts: Should be the interrupt number of the module.
>> +   Typically this is <1>.
>> + - interrupt-parent: phandle to the tsadc module of the i.MX25.
>> + - #address-cells: Should be <1> (setting for the subnodes)
>> + - #size-cells: Should be <0> (setting for the subnodes)
>> +
>> +Optional properties:
>> + - vref-ext-supply: The regulator supplying the ADC reference voltage.
>> +   Required when at least one subnode uses the this reference.
>> + - vref-xp-supply: The regulator supplying the ADC reference voltage on pin XP.
>> +   Required when at least one subnode uses this reference.
>> + - vref-yp-supply: The regulator supplying the ADC reference voltage on pin YP.
>> +   Required when at least one subnode uses this reference.
>> +
>> +Sub-nodes:
>> +Optionally you can define subnodes which define the reference voltage
>> +for the analog inputs.
>> +
>> +Required properties for subnodes:
>> + - reg: Should be the number of the analog input.
>> +     0: xp
>> +     1: yp
>> +     2: xn
>> +     3: yn
>> +     4: wiper
>> +     5: inaux0
>> +     6: inaux1
>> +     7: inaux2
>> +Optional properties for subnodes:
>> + - fsl,adc-refp: specifies the positive reference input as defined in
>> +     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
>> + - fsl,adc-refn: specifies the negative reference input as defined in
>> +     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
>> +
>> +Example:
>> +
>> +	adc: adc@50030800 {
>> +		compatible = "fsl,imx25-gcq";
>> +		reg = <0x50030800 0x60>;
>> +		interrupt-parent = <&tscadc>;
>> +		interrupts = <1>;
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +
>> +		inaux@5 {
>> +			reg = <5>;
>> +			fsl,adc-refp = <MX25_ADC_REFP_INT>;
>> +			fsl,adc-refn = <MX25_ADC_REFN_NGND>;
>> +		};
>> +	};
>> diff --git a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
>> new file mode 100644
>> index 000000000000..87abdd4a7674
>> --- /dev/null
>> +++ b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
>> @@ -0,0 +1,18 @@
>> +/*
>> + * This header provides constants for configuring the I.MX25 ADC
>> + */
>> +
>> +#ifndef _DT_BINDINGS_IIO_ADC_FS_IMX25_GCQ_H
>> +#define _DT_BINDINGS_IIO_ADC_FS_IMX25_GCQ_H
>> +
>> +#define MX25_ADC_REFP_YP	0 /* YP voltage reference */
>> +#define MX25_ADC_REFP_XP	1 /* XP voltage reference */
>> +#define MX25_ADC_REFP_EXT	2 /* External voltage reference */
>> +#define MX25_ADC_REFP_INT	3 /* Internal voltage reference */
>> +
>> +#define MX25_ADC_REFN_XN	0 /* XN ground reference */
>> +#define MX25_ADC_REFN_YN	1 /* YN ground reference */
>> +#define MX25_ADC_REFN_NGND	2 /* Internal ground reference */
>> +#define MX25_ADC_REFN_NGND2	3 /* External ground reference */
>> +
>> +#endif
>> -- 
>> 2.6.2
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe devicetree" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> --
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>
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
new file mode 100644
index 000000000000..b0866d36a307
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt
@@ -0,0 +1,58 @@ 
+Freescale i.MX25 ADC GCQ device
+
+This is a generic conversion queue device that can convert any of the
+analog inputs using the ADC unit of the i.MX25.
+
+Required properties:
+ - compatible: Should be "fsl,imx25-gcq".
+ - reg: Should be the register range of the module.
+ - interrupts: Should be the interrupt number of the module.
+   Typically this is <1>.
+ - interrupt-parent: phandle to the tsadc module of the i.MX25.
+ - #address-cells: Should be <1> (setting for the subnodes)
+ - #size-cells: Should be <0> (setting for the subnodes)
+
+Optional properties:
+ - vref-ext-supply: The regulator supplying the ADC reference voltage.
+   Required when at least one subnode uses the this reference.
+ - vref-xp-supply: The regulator supplying the ADC reference voltage on pin XP.
+   Required when at least one subnode uses this reference.
+ - vref-yp-supply: The regulator supplying the ADC reference voltage on pin YP.
+   Required when at least one subnode uses this reference.
+
+Sub-nodes:
+Optionally you can define subnodes which define the reference voltage
+for the analog inputs.
+
+Required properties for subnodes:
+ - reg: Should be the number of the analog input.
+     0: xp
+     1: yp
+     2: xn
+     3: yn
+     4: wiper
+     5: inaux0
+     6: inaux1
+     7: inaux2
+Optional properties for subnodes:
+ - fsl,adc-refp: specifies the positive reference input as defined in
+     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
+ - fsl,adc-refn: specifies the negative reference input as defined in
+     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
+
+Example:
+
+	adc: adc@50030800 {
+		compatible = "fsl,imx25-gcq";
+		reg = <0x50030800 0x60>;
+		interrupt-parent = <&tscadc>;
+		interrupts = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		inaux@5 {
+			reg = <5>;
+			fsl,adc-refp = <MX25_ADC_REFP_INT>;
+			fsl,adc-refn = <MX25_ADC_REFN_NGND>;
+		};
+	};
diff --git a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
new file mode 100644
index 000000000000..87abdd4a7674
--- /dev/null
+++ b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
@@ -0,0 +1,18 @@ 
+/*
+ * This header provides constants for configuring the I.MX25 ADC
+ */
+
+#ifndef _DT_BINDINGS_IIO_ADC_FS_IMX25_GCQ_H
+#define _DT_BINDINGS_IIO_ADC_FS_IMX25_GCQ_H
+
+#define MX25_ADC_REFP_YP	0 /* YP voltage reference */
+#define MX25_ADC_REFP_XP	1 /* XP voltage reference */
+#define MX25_ADC_REFP_EXT	2 /* External voltage reference */
+#define MX25_ADC_REFP_INT	3 /* Internal voltage reference */
+
+#define MX25_ADC_REFN_XN	0 /* XN ground reference */
+#define MX25_ADC_REFN_YN	1 /* YN ground reference */
+#define MX25_ADC_REFN_NGND	2 /* Internal ground reference */
+#define MX25_ADC_REFN_NGND2	3 /* External ground reference */
+
+#endif