If CONFIG_USB_DEV_PULLUP_GPIO is defined, a link error occurs because the set_GPIO_mode() helper function is not implemented. This function doesn't do much except make the code a little more readable, so I just manually coded its equivalent and removed the prototype from the header file. It is invoked no where else in the code.
While I was at it, I noticed that two other function prototypes in the same header file are also neither implemented nor invoked anywhere, so I removed them as well.
Signed-off-by: Mike Dunn mikedunn@newsguy.com --- Changelog: v3: no change v2: no change
arch/arm/include/asm/arch-pxa/hardware.h | 11 ----------- drivers/usb/gadget/pxa27x_udc.c | 4 +++- 2 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/arch/arm/include/asm/arch-pxa/hardware.h b/arch/arm/include/asm/arch-pxa/hardware.h index 44b800f..2397bce 100644 --- a/arch/arm/include/asm/arch-pxa/hardware.h +++ b/arch/arm/include/asm/arch-pxa/hardware.h @@ -77,17 +77,6 @@ #define GPIO_FALLING_EDGE 1 #define GPIO_RISING_EDGE 2 #define GPIO_BOTH_EDGES 3 -extern void set_GPIO_IRQ_edge( int gpio_nr, int edge_mask ); - -/* - * Handy routine to set GPIO alternate functions - */ -extern void set_GPIO_mode( int gpio_mode ); - -/* - * return current lclk frequency in units of 10kHz - */ -extern unsigned int get_lclk_frequency_10khz(void);
#endif
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 4c00081..71cc0f2 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -610,7 +610,9 @@ void udc_connect(void)
#ifdef CONFIG_USB_DEV_PULLUP_GPIO /* Turn on the USB connection by enabling the pullup resistor */ - set_GPIO_mode(CONFIG_USB_DEV_PULLUP_GPIO | GPIO_OUT); + writel(readl(GPDR(CONFIG_USB_DEV_PULLUP_GPIO)) + | GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), + GPDR(CONFIG_USB_DEV_PULLUP_GPIO)); writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPSR(CONFIG_USB_DEV_PULLUP_GPIO)); #else /* Host port 2 transceiver D+ pull up enable */