linux-kernel - Re: [PATCH v7 7/9] dt-bindings: iio: adc: at91-sama5d2

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Message-ID: <20180610133403.533cfe38@archlinux>
Date:   Sun, 10 Jun 2018 13:34:03 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Ludovic Desroches <ludovic.desroches@...rochip.com>
Cc:     Eugen Hristev <eugen.hristev@...rochip.com>,
        <alexandre.belloni@...tlin.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-iio@...r.kernel.org>, <linux-input@...r.kernel.org>,
        <nicolas.ferre@...rochip.com>, <dmitry.torokhov@...il.com>,
        <robh@...nel.org>
Subject: Re: [PATCH v7 7/9] dt-bindings: iio: adc: at91-sama5d2_adc: add
 channel specific consumer info

On Tue, 22 May 2018 14:23:19 +0200
Ludovic Desroches <ludovic.desroches@...rochip.com> wrote:

> On Tue, May 22, 2018 at 10:52:37AM +0300, Eugen Hristev wrote:
> > Added defines for channel consumer device-tree binding
> > 
> > Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
> > Reviewed-by: Rob Herring <robh@...nel.org>  
> Acked-by: Ludovic Desroches <ludovic.desroches@...rochip.com>
Applied to the togreg branch of iio.git and pushed out as testing for
the autobuilders to play with it.

Thanks,

Jonathan

> 
> > ---
> >  .../devicetree/bindings/iio/adc/at91-sama5d2_adc.txt     |  9 +++++++++
> >  include/dt-bindings/iio/adc/at91-sama5d2_adc.h           | 16 ++++++++++++++++
> >  2 files changed, 25 insertions(+)
> >  create mode 100644 include/dt-bindings/iio/adc/at91-sama5d2_adc.h
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> > index 6469a4c..4a3c1d4 100644
> > --- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> > +++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> > @@ -21,6 +21,14 @@ Optional properties:
> >    - dmas: Phandle to dma channel for the ADC.
> >    - dma-names: Must be "rx" when dmas property is being used.
> >    See ../../dma/dma.txt for details.
> > +  - #io-channel-cells: in case consumer drivers are attached, this must be 1.
> > +  See <Documentation/devicetree/bindings/iio/iio-bindings.txt> for details.
> > +
> > +Properties for consumer drivers:
> > +  - Consumer drivers can be connected to this producer device, as specified
> > +  in <Documentation/devicetree/bindings/iio/iio-bindings.txt>
> > +  - Channels exposed are specified in:
> > +  <dt-bindings/iio/adc/at91-sama5d2_adc.txt>
> >  
> >  Example:
> >  
> > @@ -38,4 +46,5 @@ adc: adc@...30000 {
> >  	atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
> >  	dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
> >  	dma-names = "rx";
> > +	#io-channel-cells = <1>;
> >  }
> > diff --git a/include/dt-bindings/iio/adc/at91-sama5d2_adc.h b/include/dt-bindings/iio/adc/at91-sama5d2_adc.h
> > new file mode 100644
> > index 0000000..70f99db
> > --- /dev/null
> > +++ b/include/dt-bindings/iio/adc/at91-sama5d2_adc.h
> > @@ -0,0 +1,16 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * This header provides constants for configuring the AT91 SAMA5D2 ADC
> > + */
> > +
> > +#ifndef _DT_BINDINGS_IIO_ADC_AT91_SAMA5D2_ADC_H
> > +#define _DT_BINDINGS_IIO_ADC_AT91_SAMA5D2_ADC_H
> > +
> > +/* X relative position channel index */
> > +#define AT91_SAMA5D2_ADC_X_CHANNEL		24
> > +/* Y relative position channel index */
> > +#define AT91_SAMA5D2_ADC_Y_CHANNEL		25
> > +/* pressure channel index */
> > +#define AT91_SAMA5D2_ADC_P_CHANNEL		26
> > +
> > +#endif
> > -- 
> > 2.7.4
> >