Add u8 property to support boost-up register of usb251xb hub. boost-up property control USB electrical drive strenght This register can be set: - Normal mode -> 0x00 - Low -> 0x01 - Medium -> 0x10 - High -> 0x11 (Normal Default) References: - http://www.mouser.com/catalog/specsheets/2514.pdf p29 Signed-off-by: Tommaso Merciai <tomm.merciai@xxxxxxxxx> --- drivers/usb/misc/usb251xb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 507deef1f709..74fd8ac0c303 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -402,6 +402,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, struct device_node *np = dev->of_node; int len, err; u32 property_u32 = 0; + u8 property_u8 = 0; const char *cproperty_char; char str[USB251XB_STRING_BUFSIZE / 2]; @@ -543,6 +544,12 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, if (of_property_read_u16_array(np, "language-id", &hub->lang_id, 1)) hub->lang_id = USB251XB_DEF_LANGUAGE_ID; + if (!of_property_read_u8(np, "boost-up", &property_u8)){ + hub->boost_up = property_u8; + } else { + hub->boost_up = USB251XB_DEF_BOOST_UP; + } + cproperty_char = of_get_property(np, "manufacturer", NULL); strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING, sizeof(str)); @@ -584,7 +591,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, * may be as soon as needed. */ hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE; - hub->boost_up = USB251XB_DEF_BOOST_UP; hub->boost_57 = USB251XB_DEF_BOOST_57; hub->boost_14 = USB251XB_DEF_BOOST_14; hub->port_map12 = USB251XB_DEF_PORT_MAP_12; -- 2.25.1
