linux-kernel - Re: [linux-sunxi] Re: [PATCH 1/2] pinctrl: sunxi: add a missing function of A10/A20 pinctrl driver

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Date:   Fri, 07 Jul 2017 07:21:19 +0800
From:   icenowy@...c.io
To:     maxime.ripard@...e-electrons.com
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [linux-sunxi] Re: [PATCH 1/2] pinctrl: sunxi: add a missing
 function of A10/A20 pinctrl driver

在 2017-07-07 04:46，Maxime Ripard 写道：
> Hi,
> 
> On Thu, Jul 06, 2017 at 10:28:21PM +0800, Icenowy Zheng wrote:
>> The PH16 pin has a function with mux id 0x5, which is the DET pin of 
>> the
>> "sim" (smart card reader) IP block.
>> 
>> This function is missing both in the old A10 and A20 drivers, so it's
>> not found during the merge of these two drivers.
>> 
>> Add it to the driver. As we now merged A20 pinctrl driver to the A10
>> one, we need to only fix the A10 driver now.
>> 
>> Signed-off-by: Icenowy Zheng <icenowy@...c.io>
> 
> I'm not sure what you mean there. It's not mentionned in the A10
> datasheet, and neither in the A20. Where did you get that info from?

It's mentioned in all newest datasheets: "A10 Datasheet V1.70.pdf" and
"A20 Datasheet V1.41 20131230.pdf".

> 
> Maxime
> 
> --
> Maxime Ripard, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com