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Commit 4055e5e5 authored by David Mosberger-Tang's avatar David Mosberger-Tang Committed by Greg Kroah-Hartman
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usb: host: max3421-hcd: Allow platform-data to specify Vbus polarity 



Signed-off-by: default avatarDavidm Mosberger <davidm@egauge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 05dfa5c9

drivers/usb/host/max3421-hcd.c

+4 −2
Original line number Diff line number Diff line
@@ -1717,7 +1717,8 @@ max3421_hub_control(struct usb_hcd *hcd, u16 type_req, u16 value, u16 index, 
			break;

		case USB_PORT_FEAT_POWER:

			dev_dbg(hcd->self.controller, "power-off\n");

			max3421_gpout_set_value(hcd, pdata->vbus_gpout, 0);

			max3421_gpout_set_value(hcd, pdata->vbus_gpout,

						!pdata->vbus_active_level);

			/* FALLS THROUGH */

		default:

			max3421_hcd->port_status &= ~(1 << value);
@@ -1766,7 +1767,8 @@ max3421_hub_control(struct usb_hcd *hcd, u16 type_req, u16 value, u16 index, 
		case USB_PORT_FEAT_POWER:

			dev_dbg(hcd->self.controller, "power-on\n");

			max3421_hcd->port_status |= USB_PORT_STAT_POWER;

			max3421_gpout_set_value(hcd, pdata->vbus_gpout, 1);

			max3421_gpout_set_value(hcd, pdata->vbus_gpout,

						pdata->vbus_active_level);

			break;

		case USB_PORT_FEAT_RESET:

			max3421_reset_port(hcd);

include/linux/platform_data/max3421-hcd.h

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
 */

struct max3421_hcd_platform_data {

	u8 vbus_gpout;			/* pin controlling Vbus */

	u8 vbus_active_level;		/* level that turns on power */

};



#endif /* MAX3421_HCD_PLAT_H_INCLUDED */