linux-kernel - Re: [PATCH v2] ARM: dts: Add cros_ec to exynos5420-peach-pit and exynos5800-peach-pi

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Date:	Tue, 24 Jun 2014 09:28:49 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Tushar Behera <trblinux@...il.com>
Cc:	Kukjin Kim <kgene.kim@...sung.com>,
	Mark Rutland <mark.rutland@....com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Kevin Hilman <khilman@...aro.org>,
	Pawel Moll <pawel.moll@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Tushar Behera <tushar.b@...sung.com>,
	Olof Johansson <olof@...om.net>,
	Rob Herring <robh+dt@...nel.org>,
	Ben Dooks <ben-linux@...ff.org>,
	naveen krishna <ch.naveen@...sung.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Rahul Sharma <rahul.sharma@...sung.com>,
	Simon Glass <sjg@...omium.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Kumar Gala <galak@...eaurora.org>,
	Ajay kumar <ajaynumb@...il.com>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Subject: Re: [PATCH v2] ARM: dts: Add cros_ec to exynos5420-peach-pit and exynos5800-peach-pi

Tushar,

On Mon, Jun 23, 2014 at 11:43 PM, Tushar Behera <trblinux@...il.com> wrote:
> On 06/24/2014 02:19 AM, Doug Anderson wrote:
>> This adds cros_ec to exynos5420-peach-pit and exynos5800-peach-pi,
>> including:
>> * The keyboard
>> * The i2c tunnel
>> * The tps65090 under the i2c tunnel
>> * The battery under the i2c tunnel
>>
>> To add extra motivation, it should be noted that tps65090 is one of
>> the things needed to get display-related FETs turned on for pit and
>> pi.
>>
>> Note that this relies on a few outstanding changes:
>> * Needs (spi: s3c64xx: fix broken "cs_gpios" usage in the driver) and
>>   (spi: s3c64xx: for DT platofrms always get the chipselect info from
>>   DT node) to work properly and match the documented bindings.  See
>>   <https://patchwork.kernel.org/patch/4346701/> and
>>   <https://patchwork.kernel.org/patch/4346711/>
>>
>> Signed-off-by: Doug Anderson <dianders@...omium.org>
>> Tested-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
>
> Along with the dependency patches on next-20140623, tested keyboard on
> Peach-Pi board.
>
> Tested-by: Tushar Behera <tushar.b@...sung.com>
>
> Some comments below.
>
>> ---
>> Changes in v2:
>> - Now just one patch since mfd patch landed.
>> - Rebased to ToT linux-next
>>
>>  arch/arm/boot/dts/exynos5420-peach-pit.dts | 145 +++++++++++++++++++++++++++++
>>  arch/arm/boot/dts/exynos5800-peach-pi.dts  | 145 +++++++++++++++++++++++++++++
>>  2 files changed, 290 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
>> index 7649982..581f385 100644
>> --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
>> +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
>
>> +                             regulators {
>> +                                     dcdc1 {
>> +                                             ti,enable-ext-control;
>> +                                     };
>> +                                     dcdc2 {
>> +                                             ti,enable-ext-control;
>> +                                     };
>> +                                     dcdc3 {
>> +                                             ti,enable-ext-control;
>> +                                     };
>> +                                     fet1 {
>
> "tps65090_fet1: fet1 {" ?
>
>> +                                             regulator-name = "vcd_led";
>> +                                     };
>> +                                     tps65090_fet2: fet2 {
>
> I would suggest we add similar labels to fet1, fet3, fet4, fet5 and fet6
> also. That way it would be easy to reference them in subsequent DT nodes.
>
> Same comment for Peach-Pi dts file too.

OK.  I added it to all the regulators in tps65090.  That'll probably
be useful for Javier in his max77802 work.

-Doug
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