diff options
| author | Ryan Mallon <ryan@bluewatersys.com> | 2010-07-13 05:09:16 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-18 20:39:10 +0100 |
| commit | 4037242c4f5ff77afe61bf07ca1e8a99490219e5 (patch) | |
| tree | 467e63d58278eaf401b5e4528702bc1d58c71bf3 /arch | |
| parent | 064baaca873c64feaea0e4476d14d4c9fd978e9e (diff) | |
ARM: 6209/3: at91_udc: Add vbus polarity and polling mode
Allow the vbus signal to optionally use polling. This is required if
the vbus signal is connected to an non-interrupting io expander for
example. If vbus is in polling mode, then it is assumed that the vbus
gpio may sleep. Also add an option to have vbus be an active low
signal. Both options are set in the platform data for the device.
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/board.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index df2ed848c9f..58528aa9c8a 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -44,6 +44,8 @@ /* USB Device */ struct at91_udc_data { u8 vbus_pin; /* high == host powering us */ + u8 vbus_active_low; /* vbus polarity */ + u8 vbus_polled; /* Use polling, not interrupt */ u8 pullup_pin; /* active == D+ pulled up */ u8 pullup_active_low; /* true == pullup_pin is active low */ }; |