PXA UDC - allow use of inverted GPIO for pullup (8fb105f5) · Commits · 戴 / test

drivers/usb/gadget/pxa25x_udc.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -152,9 +152,10 @@ static int is_vbus_present(void)
		static void pullup_off(void)
		{
		struct pxa2xx_udc_mach_info *mach = the_controller->mach;
		int off_level = mach->gpio_pullup_inverted;

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

		if (mach->gpio_pullup)
		gpio_set_value(mach->gpio_pullup, 1);
		gpio_set_value(mach->gpio_pullup, on_level);
		else if (mach->udc_command)
		mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
		}

+1 −0

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