From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Cameron Subject: Re: [PATCH v6 2/8] ARM: dt: Binding documentation for imx25 GCQ Date: Wed, 04 Feb 2015 16:48:32 +0000 Message-ID: <54D24D60.2030009@kernel.org> References: <1422540556-14828-1-git-send-email-mpa@pengutronix.de> <1422540556-14828-3-git-send-email-mpa@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1422540556-14828-3-git-send-email-mpa@pengutronix.de> Sender: linux-input-owner@vger.kernel.org To: Markus Pargmann , Shawn Guo , Samuel Ortiz , Dmitry Torokhov , Fabio Estevam , Peter Meerwald , Hartmut Knaack Cc: Denis Carikli , =?windows-1252?Q?Eric_B=E9nard?= , Sascha Hauer , linux-arm-kernel@lists.infradead.org, Lee Jones , linux-input@vger.kernel.org, linux-iio@vger.kernel.org, Lars-Peter Clausen , devicetree@vger.kernel.org, Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala List-Id: devicetree@vger.kernel.org On 29/01/15 14:09, 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 > --- > > Notes: > Changes in v6: > - Moved the raw_read code out to a different function to cleanup the code To be picky, that's in a later patch rather than this one... > - Changed bindings to use adc-refp and adc-refn. Also a bit of cleanup in the > setup routine. > - Added defines for a complete list of references in the dt binding macros > > Changes in v5: > - Fixed locking > - Removed module owner > > .../devicetree/bindings/iio/adc/fsl,imx25-gcq.txt | 54 ++++++++++++++++++++++ > 1 file changed, 54 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt > > 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..9f7c08990034 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/adc/fsl,imx25-gcq.txt > @@ -0,0 +1,54 @@ > +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-supply: The regulator supplying the ADC reference voltage. > + Required when at least one subnode uses the external reference. Note, as commented on next patch, the regulator request should reflect this dependency. > + > +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 > + > + - fsl,adc-refn: specifies the negative reference input as defined in > + > + > +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 = ; > + fsl,adc-refn = ; > + }; > + }; >