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

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Date:	Sun, 31 May 2015 15:24:34 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Anand Moon <linux.amoon@...il.com>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Kukjin Kim <kgene@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ARM: dts: odroidxu3: Enable USB3 regulators

2015-05-30 22:53 GMT+09:00 Anand Moon <linux.amoon@...il.com>:
> On 28 May 2015 at 14:49, Krzysztof Kozlowski <k.kozlowski@...sung.com> wrote:
>> On 28.05.2015 17:58, Anand Moon wrote:
>>> Enable regulator for usbdrd3_0 and usbdrd3_1
>>>>>From the schematic pin diagram USB3_0 and USB3_1
>>> is regulated by LDO9 and LD011.
>>
>> Please reformat statement above to proper sentence(s) without ">" before
>> "From".
>>
>>>
>>> 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
>>> ---
>>
>> I mentioned this already on previous postings. Let's make an exercise.
>> Please:
>> 1. Save your email as mbox format (from mailer).
>> 2. Go to a GIT repo with kernel and checkout base branch.
>> 3. git am 0001-the-name-of-file.mbox
>> 4. git show
>>
>> Do you see the signed-off-by in commit?
>>
>> The patch itself looks good, thanks for fixing this. Just please fix the
>> issues with commit message.
>>
>> By the way:
>> 1. The always-on from LDO9 could be probably removed if the ehci-exynos
>> driver had regulator consumer implemented.
>> 2. The Documentation/devicetree/bindings/usb/exynos-usb.txt (or dwc.txt)
>> should proably mention the vdd-supply property.
>
> Hi Krzysztof,
>
> https://patchwork.kernel.org/patch/4420061/
> https://patchwork.kernel.org/patch/4420071/
>
> These patch are missing for this changes to make it work correctly.
>
> Can you share you thought on this.

They look quite old, it is a pity that they were not merged.

Best regards,
Krzysztof
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