linux-kernel - Re: [PATCH v3 1/3] Documentation: DT: Add iproc-static-adc binding

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Message-ID: <4c8870ef-8777-7016-465b-9c03463d01fa@kernel.org>
Date:	Sun, 26 Jun 2016 11:24:36 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Rob Herring <robh@...nel.org>,
	Raveendra Padasalagi <raveendra.padasalagi@...adcom.com>
Cc:	Peter Meerwald-Stadler <pmeerw@...erw.net>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>, linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Jonathan Richardson <jonathar@...adcom.com>,
	Jon Mason <jonmason@...adcom.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Anup Patel <anup.patel@...adcom.com>,
	Ray Jui <rjui@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	Pramod Kumar <pramod.kumar@...adcom.com>,
	linux-kernel@...r.kernel.org, bcm-kernel-feedback-list@...adcom.com
Subject: Re: [PATCH v3 1/3] Documentation: DT: Add iproc-static-adc binding

On 24/06/16 16:43, Rob Herring wrote:
> On Wed, Jun 22, 2016 at 11:41:51AM +0530, Raveendra Padasalagi wrote:
>> The patch adds devicetree binding document for broadcom's
>> iproc-static-adc controller driver.
>>
>> Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@...adcom.com>
>> Reviewed-by: Ray Jui <ray.jui@...adcom.com>
>> Reviewed-by: Scott Branden <scott.branden@...adcom.com>
>> ---
>>  .../bindings/iio/adc/brcm,iproc-static-adc.txt     | 38 ++++++++++++++++++++++
>>  1 file changed, 38 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
>>
>> diff --git a/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
>> new file mode 100644
>> index 0000000..a82076e
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt
>> @@ -0,0 +1,38 @@
>> +* Broadcom's IPROC Static ADC controller
>> +
>> +Broadcom iProc ADC controller has 8 channels 10bit ADC.
>> +Allows user to convert analog input voltage values to digital.
>> +
>> +Required properties:
>> +
>> +- compatible: Must be "brcm,iproc-static-adc"
>> +
>> +- adc-syscon: Handler of syscon node defining physical base address of the
>> +  controller and length of memory mapped region.
>> +
>> +- #io-channel-cells = <1>; As ADC has multiple outputs
>> +  refer to Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
>> +
>> +- clocks: Clock used for this block.
>> +
>> +- clock-names: Clock name should be given as tsc_clk.
>> +
>> +- interrupts: interrupt line number.
>> +
>> +For example:
>> +
>> +	ts_adc_syscon: ts_adc_syscon@...a6000 {
>> +		compatible = "brcm,iproc-ts-adc-syscon","syscon";
>> +		reg = <0x180a6000 0xc30>;
>> +	};
>> +
>> +	adc: adc@...a6000 {
>> +		compatible = "brcm,iproc-static-adc";
>> +		adc-syscon = <&ts_adc_syscon>;
>> +		#io-channel-cells = <1>;
>> +		io-channel-ranges;
> 
> Not documented.
Core iio docs, but obviously a cross reference would be good.
> 
>> +		clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
>> +		clock-names = "tsc_clk";
>> +		interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
>> +		status = "disabled";
>> +	};
>> -- 
>> 1.9.1
>>
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