[OpenWrt-Devel] [PATCH] [ar71xx] Send power to USB port on WNR2200

[Riley Baird]

> > This patch fixes ticket #15267 by enabling power on the
> > WNR2200's USB port. At present, the USB port on the WNR2200
> > is non-functional due to it not receiving power.
> > 
> > This patch defines an additional GPIO pin, but none of the
> > current GPIO definitions have been modified.
> > 
> > Signed-off-by: Riley Baird <BM-2cVqnDuYbAU5do2DfJTrN7ZbAJ246S4XiX at bitmessage.ch>
> > ----
> > diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c
> > index bf7f9ee..a1de26a 100644
> > --- a/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c
> > +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-wnr2200.c
> > @@ -36,7 +36,7 @@
> >  #define WNR2200_GPIO_LED_LAN4_GREEN	16
> >  #define WNR2200_GPIO_LED_PWR_AMBER	21
> >  #define WNR2200_GPIO_LED_PWR_GREEN	22
> > -
> > +#define WNR2200_GPIO_USB_5V		4
> >  #define WNR2200_GPIO_USB_POWER		24
> >  
> >  #define WNR2200_KEYS_POLL_INTERVAL	20 /* msecs */
> > @@ -127,9 +127,9 @@ static void __init wnr2200_setup(void)
> >  					wnr2200_leds_gpio);
> >  
> >  	/* enable power for the USB port */
> > -	gpio_request_one(WNR2200_GPIO_USB_POWER,
> > -			GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
> > -			"USB power");
> 
> was gpio24 just wrong or are there 2 pins for whatever reason ?

Looking at Netgear's GPL source code again, it appears that gpio24
was just wrong. I have no idea why the original author put it in
there.

> > +	ap9x_pci_setup_wmac_gpio(0,
> > +		BIT(WNR2200_GPIO_USB_5V),
> > +		BIT(WNR2200_GPIO_USB_5V));
> >  
> >  	ath79_register_usb();
> >  }
> 
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