Commit 4ed466ae authored by Serge Semin's avatar Serge Semin Committed by Greg Kroah-Hartman
Browse files

usb: usb251xb: Add max power/current dts property support 



This parameters may be varied in accordance with hardware specifics.
So lets add the corresponding settings to the usb251xb driver dts
specification.

Signed-off-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 287c2bb6

drivers/usb/misc/usb251xb.c

+20 −4
Original line number Diff line number Diff line
@@ -499,6 +499,26 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, 
		}

	}



	hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;

	if (!of_property_read_u32(np, "sp-max-total-current-microamp",

	    &property_u32))

		hub->max_power_sp = min_t(u8, property_u32 / 2000, 50);



	hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;

	if (!of_property_read_u32(np, "bp-max-total-current-microamp",

	    &property_u32))

		hub->max_power_bp = min_t(u8, property_u32 / 2000, 255);



	hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;

	if (!of_property_read_u32(np, "sp-max-removable-current-microamp",

	    &property_u32))

		hub->max_current_sp = min_t(u8, property_u32 / 2000, 50);



	hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;

	if (!of_property_read_u32(np, "bp-max-removable-current-microamp",

	    &property_u32))

		hub->max_current_bp = min_t(u8, property_u32 / 2000, 255);



	hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;

	if (!of_property_read_u32(np, "power-on-time-ms", &property_u32))

		hub->power_on_time = min_t(u8, property_u32 / 2, 255);
@@ -538,10 +558,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, 
	/* The following parameters are currently not exposed to devicetree, but

	 * may be as soon as needed.

	 */

	hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;

	hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;

	hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;

	hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;

	hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;

	hub->boost_up = USB251XB_DEF_BOOST_UP;

	hub->boost_57 = USB251XB_DEF_BOOST_57;