Thread (14 messages) 14 messages, 5 authors, 2014-09-20

Re: [RFC PATCH] gpio: add GPIO hogging mechanism

From: Linus Walleij <hidden>
Date: 2014-01-08 09:45:26
Also in: linux-gpio, linux-omap, lkml

On Mon, Dec 30, 2013 at 10:48 AM, boris brezillon
[off-list ref] wrote:
On 19/12/2013 19:22, Felipe Balbi wrote:
quoted
that's quite a weird argument from Linus W, considering you _do_ have a
discrete mux on the board.
quoted
We have quite a few of such "crazy" scenarios here at TI and we were
going to send a pinctrl-gpio driver.
Hm I'm all in the blue as to what a "pinctrl-gpio driver" is ... I'm
confused :-)
quoted
If that's not acceptable, then I
suppose there is no way to boot from NAND on a board where NAND signals
go through a discrete mux where the select signal is a GPIO pin.
One problem I have is that I still don't really understand if this is a pin
mux, i.e. changing the connection to a certain device onto some actual
*PIN* or just some other mux muxing some certain line from one silicon
block to another.
Linus, tell me if I'm wrong, but I think, the pinctrl-gpio is the right way
to solve
the at91rm9200ek board use case.
I don't know, because I don't know exactly what you mean by
"pinctrl-gpio".

Yours,
Linus Walleij
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