On Wed, Sep 15, 2010 at 04:28:57PM -0500, Steve Sakoman wrote:
On Wed, Sep 15, 2010 at 9:29 AM, Anti Sullin <anti.sullin@xxxxxxxxxxxxxx> wrote:
I was not getting OTG USB vbus/id pin change interrupts on Gumstix Overo
and the reason was a mis-configured irq. I added some more checks to avoid
having a non-bootable kernel on boards with bootloaders that have wrong pinmux.
The changes of twl4030 should be tested on other boards too.
---
Gumstix Overo has TPS65950 (TWL4030) IRQ1 connected to GPIO112.
I don't think that this change should be made.
From what I understand from my discussions with Gumstix, early
versions of the Overo COM used GPIO112 as indicated above.
However all fab revisions >=2516 use GPIO0, so the code is correct for
current and future versions of Overo COMs (as is the bootloader
pinmuxing).
In fact, future versions of Overo will use GPIO112 for a revision ID.
Not an ideal situation, but I think we should leave things as they are
since it matches current and future production.
People with older boards will certainly need to use this patch to get
vbus/id interrupts.
it would be better to get all boards working. Can't you use
ATAG_REVISION or system_rev to differentiate the board revisions and
change gpio number accordingly ??
--
balbi
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