linux-kernel - Re: [PATCH v3 2/6] pinctrl: Introduce pinctrl driver for Qualcomm SSBI PMIC's

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Date:	Mon, 03 Nov 2014 08:48:55 +0000
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Bjorn Andersson <bjorn@...o.se>,
	Bjorn Andersson <bjorn.andersson@...ymobile.com>
CC:	"Ivan T. Ivanov" <iivanov@...sol.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/6] pinctrl: Introduce pinctrl driver for Qualcomm
 SSBI PMIC's

Hi Bjorn,

On 20/08/14 23:13, Bjorn Andersson wrote:
> On Wed, Aug 20, 2014 at 2:28 PM, Bjorn Andersson
> <bjorn.andersson@...ymobile.com> wrote:
>> On Wed 20 Aug 01:06 PDT 2014, Srinivas Kandagatla wrote:
>>> 2> Looking back at v3.4 kernel, for gpio modes, BIT(0) of bank 0 is set
>>> to enable gpio mode. without this bit driver does not work for output pins.
>>>
>>
>> Thanks, I missed that.
>>
>> Unfortunately, setting that bit results in input not working - the interrupt
>> bits are never set for gpios that have that bit set. I'm trying to figure out
>> why this is the case before sending out the new version...
>
> With help from Andy Gross this is now corrected as well, turned out
> that BIT(0) in bank0 controls if the "direction" is considered. As I
> was tricked by the multiple levels of indirection in the codeaurora
> version I got these wrong.
>
> Will send out an updated version shortly.
Did you get a chance to spin a new version of this patcheset?

--srini
>
> Regards,
> Bjorn
>
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