* Question: Does devicetree capable of describing pinmux?
@ 2012-04-11 9:35 Dennis.Yxun
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0 siblings, 1 reply; 3+ messages in thread
From: Dennis.Yxun @ 2012-04-11 9:35 UTC (permalink / raw)
To: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ
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Hi Fork:
I would like to know whether device tree capable of describing pinmux?
Say, one pin (PIN_10) which can be configured as I2C_SDL, SPI_CLK,
GPIO23,
How can I describe in device tree?
Or, the I2C controller 1 can be configured to use PIN(23, 24) or
PIN(45,46),
What should I should do with device tree?
Thanks
Dennis
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* Re: Question: Does devicetree capable of describing pinmux?
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@ 2012-04-11 9:42 ` Dennis.Yxun
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0 siblings, 1 reply; 3+ messages in thread
From: Dennis.Yxun @ 2012-04-11 9:42 UTC (permalink / raw)
To: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ
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Possibly that can be connected to pinctrl subsystem, right?
On Wed, Apr 11, 2012 at 5:35 PM, Dennis.Yxun <dennis.yxun-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hi Fork:
> I would like to know whether device tree capable of describing pinmux?
> Say, one pin (PIN_10) which can be configured as I2C_SDL, SPI_CLK,
> GPIO23,
> How can I describe in device tree?
> Or, the I2C controller 1 can be configured to use PIN(23, 24) or
> PIN(45,46),
> What should I should do with device tree?
>
> Thanks
>
> Dennis
>
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* Re: Question: Does devicetree capable of describing pinmux?
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@ 2012-04-11 15:37 ` Stephen Warren
0 siblings, 0 replies; 3+ messages in thread
From: Stephen Warren @ 2012-04-11 15:37 UTC (permalink / raw)
To: Dennis.Yxun; +Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ
> On Wed, Apr 11, 2012 at 5:35 PM, Dennis.Yxun <dennis.yxun-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> <mailto:dennis.yxun-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>> wrote:
>
> Hi Fork:
> I would like to know whether device tree capable of describing
> pinmux?
...
On 04/11/2012 03:42 AM, Dennis.Yxun wrote:
> Possibly that can be connected to pinctrl subsystem, right?
Yes, the pinctrl subsystem recently grew support for representing pinmux
in the device tree. See for example:
repo git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
branch for-next
path Documentation/devicetree/bindings/pinctrl/
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2012-04-11 9:35 Question: Does devicetree capable of describing pinmux? Dennis.Yxun
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2012-04-11 9:42 ` Dennis.Yxun
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2012-04-11 15:37 ` Stephen Warren
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