| commit | b2bbb20b37d734443d1c279d0033a64f6095db54 | |
| author | David Brownell <david-b@pacbell.net> | |
| Thu, 29 Jun 2006 19:25:39 +0000 (29 12:25 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Wed, 27 Sep 2006 18:58:48 +0000 (27 11:58 -0700) | ||
| tree | 067510f143dcb0e4f938f932994e5ac34f5da6b9 | treesnapshot (tar.gz zip) |
| parent | 3a16f7b4a75d68364c3278523f51ac141a12758a | commitdiff |
USB: pxa2xx_udc understands GPIO based VBUS sensing
This updates the PXA 25x UDC board-independent infrastructure for VBUS sensing
and the D+ pullup. The original code evolved from rather bizarre support on
Intel's "Lubbock" reference hardware, so that on more sensible hardware it
doesn't work as well as it could/should.
The change is just to teach the UDC driver how to use built-in PXA GPIO pins
directly. This reduces the amount of board-specfic object code needed, and
enables the use of a VBUS sensing IRQ on boards (like Gumstix) that have one.
With VBUS sensing, the UDC is unclocked until a host is actually connected.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This updates the PXA 25x UDC board-independent infrastructure for VBUS sensing
and the D+ pullup. The original code evolved from rather bizarre support on
Intel's "Lubbock" reference hardware, so that on more sensible hardware it
doesn't work as well as it could/should.
The change is just to teach the UDC driver how to use built-in PXA GPIO pins
directly. This reduces the amount of board-specfic object code needed, and
enables the use of a VBUS sensing IRQ on boards (like Gumstix) that have one.
With VBUS sensing, the UDC is unclocked until a host is actually connected.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>