2014-11-03 08:49:04

by Srinivas Kandagatla

[permalink] [raw]
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
> <[email protected]> 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
>


2014-11-04 02:25:26

by Bjorn Andersson

[permalink] [raw]
Subject: Re: [PATCH v3 2/6] pinctrl: Introduce pinctrl driver for Qualcomm SSBI PMIC's

On Mon 03 Nov 00:48 PST 2014, Srinivas Kandagatla wrote:

> Hi Bjorn,
>
> On 20/08/14 23:13, Bjorn Andersson wrote:
> > On Wed, Aug 20, 2014 at 2:28 PM, Bjorn Andersson
> > <[email protected]> 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?
>

Hi Srini,

Unfortunately it ended up on my todo list waiting for a discussion on
irq_read_line(). As this seems to fall in place I will try to get this updated
and sent out.

Sorry for the delays.

Regards,
Bjorn