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From: Hans de Goede <hdegoede@redhat.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] sunxi: axp221: correct ALDO2 description for sun6i
Date: Tue, 13 Jan 2015 13:00:52 +0100	[thread overview]
Message-ID: <54B508F4.1060101@redhat.com> (raw)
In-Reply-To: <CAGb2v66iQzh9PBFYdLTvpRUb9373-dJJZZOycDVFjA0J+wRZ1w@mail.gmail.com>

Hi,

On 11-01-15 10:41, Chen-Yu Tsai wrote:
> On Sun, Jan 11, 2015 at 5:38 PM, Ian Campbell <ijc@hellion.org.uk> wrote:
>> On Sat, 2015-01-03 at 10:17 +0800, Chen-Yu Tsai wrote:
>>> ALDO2 is used to power LPDDR2 SDRAM on both the reference design and the
>>> Hummingbird A31, when this type of RAM is present.
>>>
>>> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
>>
>> I think this one needs Hans' opinion more than mine, but looks OK to me
>> with one small comment:
>>
>>> +     disable aldo2. On sun6i (A31) boards this is typically used for LPDDR2
>>> +     SDRAM, and should be set to 1.8V if present. On sun8i (A23) this is
>>> +     typically connected to VDD-DLL and must be set to 2.5V.
>>
>> It took me a while to work out why "set to 1.8V if present" wasn't
>> reflected in the default (which you changed to zero in this patch), I
>> think there is an implied "which is almost never" on the end? But that
>> wouldn't be in keeping with the style of things. How about:
>>
>>          [...] On sun6i (A31) boards this is typically unused and should
>>          be disabled, if it is used for LPDDR2 it should be set to 1.8V.
>>          [...]
>>
>> ?
>
> Yes that does seem less confusing. A full stop after "disabled" would be
> even better.

I've committed this patch with the fix suggested by Ian, I've deviced to
keep the "," to make it clear that the if belongs to the "On sun6i".

I've queued this up for merging in u-boot-sunxi/next.

Regards,

Hans

      parent reply	other threads:[~2015-01-13 12:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-03  2:17 [U-Boot] [PATCH] sunxi: axp221: correct ALDO2 description for sun6i Chen-Yu Tsai
2015-01-11  9:38 ` Ian Campbell
2015-01-11  9:41   ` Chen-Yu Tsai
2015-01-11  9:51     ` Ian Campbell
2015-01-13 12:00     ` Hans de Goede [this message]

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