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PXA UDC - allow use of inverted GPIO for pullup 

Signed-off-by: Ian Molton <spyro@f2s.com>
This commit is contained in:
Ian Molton 2008-06-25 22:34:51 +01:00
parent b3d354b8d8
commit 8fb105f5cc
2 changed files with 5 additions and 2 deletions
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6
drivers/usb/gadget/pxa25x_udc.c
View File

@ -152,9 +152,10 @@ static int is_vbus_present(void)
static void pullup_off(void) static void pullup_off(void)
{ {
struct pxa2xx_udc_mach_info *mach = the_controller->mach; struct pxa2xx_udc_mach_info *mach = the_controller->mach;
int off_level = mach->gpio_pullup_inverted;
if (mach->gpio_pullup) if (mach->gpio_pullup)
gpio_set_value(mach->gpio_pullup, 0); gpio_set_value(mach->gpio_pullup, off_level);
else if (mach->udc_command) else if (mach->udc_command)
mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT);
} }
@ -162,9 +163,10 @@ static void pullup_off(void)
static void pullup_on(void) static void pullup_on(void)
{ {
struct pxa2xx_udc_mach_info *mach = the_controller->mach; struct pxa2xx_udc_mach_info *mach = the_controller->mach;
int on_level = !mach->gpio_pullup_inverted;
if (mach->gpio_pullup) if (mach->gpio_pullup)
gpio_set_value(mach->gpio_pullup, 1); gpio_set_value(mach->gpio_pullup, on_level);
else if (mach->udc_command) else if (mach->udc_command)
mach->udc_command(PXA2XX_UDC_CMD_CONNECT); mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
} }

1
include/asm-arm/mach/udc_pxa2xx.h
View File

@ -23,6 +23,7 @@ struct pxa2xx_udc_mach_info {
*/ */
bool gpio_vbus_inverted; bool gpio_vbus_inverted;
u16 gpio_vbus; /* high == vbus present */ u16 gpio_vbus; /* high == vbus present */
bool gpio_pullup_inverted;
u16 gpio_pullup; /* high == pullup activated */ u16 gpio_pullup; /* high == pullup activated */
}; };