linux-kernel - Re: [PATCH] ARM: DTS: DRA7: Add TPS659038 PMIC nodes

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Message-ID: <520DE6F2.8080806@ti.com>
Date:	Fri, 16 Aug 2013 14:16:42 +0530
From:	Balaji T K <balajitk@...com>
To:	Nishanth Menon <nm@...com>
CC:	Keerthy <j-keerthy@...com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <swarren@...dotorg.org>,
	<rob.herring@...xeda.com>, <pawel.moll@....com>,
	<mark.rutland@....com>
Subject: Re: [PATCH] ARM: DTS: DRA7: Add TPS659038 PMIC nodes

On Thursday 15 August 2013 05:05 AM, Nishanth Menon wrote:
> linux-omap, linux-arm-list should also be CCed, Benoit needs to be
> addressed for allowing him to merge,
>
> I have not done a proper schematics Vs data manual review yet
> (apologies on that), but, a couple of comments:
>
> On 08/13/2013 12:42 AM, Keerthy wrote:
>> The Patch adds nodes for TPS659038 PMIC for DRA7 boards.
>>
>> It is based on:
>> http://comments.gmane.org/gmane.linux.ports.arm.omap/102459.
>>
>> Documentation:	Documentation/devicetree/bindings/mfd/palmas.txt
>> 		Documentation/devicetree/bindings/regulator/palmas-pmic.txt		
>>
>> Tested on DRA7 Board, 3.11-rc5 plus the above patch-set.
>>
>> Signed-off-by: Keerthy <j-keerthy@...com>
>> ---
>>   arch/arm/boot/dts/dra7-evm.dts |  118 ++++++++++++++++++++++++++++++++++++++++
>>   1 file changed, 118 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
>> index b270e24..96f409f 100644
>> --- a/arch/arm/boot/dts/dra7-evm.dts
>> +++ b/arch/arm/boot/dts/dra7-evm.dts
<snip>

>> +
>> +				ldo1_reg: ldo1 {
>> +						/* LDO1_OUT --> SDIO  */
>> +						regulator-name = "ldo1";
>> +						regulator-min-microvolt = <1800000>;
>> +						regulator-max-microvolt = <3300000>;
>> +					};
>> +
>> +				ldo2_reg: ldo2 {
>> +						/* VDD_RTCIO */
>> +						regulator-name = "ldo2";
>> +						regulator-min-microvolt = <3300000>;
>> +						regulator-max-microvolt = <3300000>;
>> +						regulator-always-on;
>> +						regulator-boot-on;
>> +					};
>> +
>> +				ldo3_reg: ldo3 {
>> +						/* VDDA_1V8 PHYs */
>> +						regulator-name = "ldo3";
>> +						regulator-min-microvolt = <1800000>;
>> +						regulator-max-microvolt = <1800000>;
>> +					};
>> +
>> +				ldo9_reg: ldo9 {
>> +						/* VDD_RTC */
>> +						regulator-name = "ldo9";
>> +						regulator-min-microvolt = <1000000>;
>> +						regulator-max-microvolt = <1000000>;
>> +						regulator-boot-on;
>> +						regulator-always-on;
>> +					};
>> +
>> +				ldoln_reg: ldoln {
>> +						/* VDDA_1v8: PLLs */
>> +						regulator-name = "ldoln";
>> +						regulator-min-microvolt = <1800000>;
>> +						regulator-max-microvolt = <1800000>;
>> +						regulator-always-on;
>> +						regulator-boot-on;
>> +					};
>> +
>> +				ldousb_reg: ldousb {
>> +						/* VDDA_3V_USB: VDDA_USBHS33 */
>> +						regulator-name = "ldousb";
>> +						regulator-min-microvolt = <3250000>;
>> +						regulator-max-microvolt = <3250000>;
>> +						regulator-always-on;
>> +						regulator-boot-on;
>> +					};
>> +
>> +				};
>> +			};
>> +		};
>
> Who are using these LDOs? Example SDIO LDO should be linked up with
> MMC instance, no? how about the PLLs and PHYs?
>

ldo1_reg would be linked in follow up patches which enables sd/mmc.

>
>>   };
>>
>>   &i2c2 {
>>
>
>
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