linux-kernel - Re: [PATCHv2] ARM: dts: odroidxu3: Enable USB3 regulators

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Date:	Fri, 29 May 2015 16:28:38 +0200
From:	Javier Martinez Canillas <javier@...hile0.org>
To:	Anand Moon <linux.amoon@...il.com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCHv2] ARM: dts: odroidxu3: Enable USB3 regulators

Hello Anand,

On Fri, May 29, 2015 at 4:25 PM, Anand Moon <linux.amoon@...il.com> wrote:
> Hi Javier,
>
> Ok sorry for the mistake and not following the protocol.
> Now I clearly understood my mistake. It will not be repeated.
> I will resend the patch.
>
> Is this correct format to follow.
>
>     Tested-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
>     Signed-off-by: Anand Moon <linux.amoon@...il.com>
>    ---
>     This patch is based on Krzysztof github branch
> work-next/odroid-xu3-s2mps11-irq.
>     v2 - Fixed the comment.
>

Yes, that's a correct way of doing it.

One minor nit: I think your Signed-off-by tag should be before
Krzysztof's Tested-by since first you posted the patch and then he
tested it.

> -Anand Moon
>

Best regards,
Javier

> On 29 May 2015 at 19:19, Javier Martinez Canillas <javier@...hile0.org> wrote:
>> Hello Anand,
>>
>> On Fri, May 29, 2015 at 3:34 PM, Anand Moon <linux.amoon@...il.com> wrote:
>>> Enable regulator for usbdrd3_0 and usbdrd3_1.
>>> Looking at the schematic pin diagram for MAX77802
>>> USB3_0 and USB3_1 is regulated by LDO9 and LD011.
>>>
>>> Fix the boot message of failed.
>>> [    3.503539] exynos-dwc3 usb@...00000: Looking up vdd33-supply from device tree
>>> [    3.503556] exynos-dwc3 usb@...00000: Looking up vdd33-supply property in node /usb@...00000 failed
>>> [    3.503568] usb@...00000 supply vdd33 not found, using dummy regulator
>>> [    3.509154] exynos-dwc3 usb@...00000: Looking up vdd10-supply from device tree
>>> [    3.509170] exynos-dwc3 usb@...00000: Looking up vdd10-supply property in node /usb@...00000 failed
>>> [    3.509181] usb@...00000 supply vdd10 not found, using dummy regulator
>>> [    3.917548] exynos-dwc3 usb@...00000: Looking up vdd33-supply from device tree
>>> [    3.917565] exynos-dwc3 usb@...00000: Looking up vdd33-supply property in node /usb@...00000 failed
>>> [    3.917578] usb@...00000 supply vdd33 not found, using dummy regulator
>>> [    3.922731] exynos-dwc3 usb@...00000: Looking up vdd10-supply from device tree
>>> [    3.922747] exynos-dwc3 usb@...00000: Looking up vdd10-supply property in node /usb@...00000 failed
>>>
>>> ---
>>> This patch is based on Krzysztof github branch work-next/odroid-xu3-s2mps11-irq.
>>> v2 - Fixed the comment.
>>> ---
>>>
>>> Tested-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
>>> Signed-off-by: Anand Moon <linux.amoon@...il.com>
>>> ---
>>>  arch/arm/boot/dts/exynos5422-odroidxu3.dts | 10 ++++++++++
>>>  1 file changed, 10 insertions(+)
>>>
>>
>> Your commit message is again not correct. Sorry if this is a long
>> explanation but I want you to understand how the git tools work.
>>
>> What git am and other git tools do is to strip any text that is
>> between the first "---" and the actual diff. With git format-patch the
>> information that is placed there by default is the file(s) diffstat
>> since that is a useful information for someone reviewing your patches
>> but not so to be part of the commit message, you can get it anyways
>> later with git $commitId --stat.
>>
>> So what people do is to add information after the first "---" that is
>> relevant for reviewers but don't want to end the commit message.
>> Usually this is the patch change history but it can contain any other
>> information like links to previous patches, dependencies posted
>> previously, etc.
>>
>> With your current patch, that means that git am will strip your
>> Signed-off-by and Krzysztof's Tested-by tags which should be part of
>> the commit message.
>>
>> Krzysztof already mentioned but a good exercise would be to generate
>> your patch with git format-patch and then apply again with git am to
>> see if the end result is what you were expecting for.
>>
>> Hope it helps,
>> Javier
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