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usb: usb251xb: add boost-up property support
Add support for boost-up register of usb251xb hub. boost-up property control USB electrical drive strength 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 Reviewed-by: Richard Leitner <richard.leitner@linux.dev> Signed-off-by: Tommaso Merciai <tomm.merciai@gmail.com> Link: https://lore.kernel.org/r/20220128181713.96856-1-tomm.merciai@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 3 additions and 1 deletions
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@ -543,6 +543,9 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
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if (of_property_read_u16_array(np, "language-id", &hub->lang_id, 1))
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hub->lang_id = USB251XB_DEF_LANGUAGE_ID;
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if (of_property_read_u8(np, "boost-up", &hub->boost_up))
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hub->boost_up = USB251XB_DEF_BOOST_UP;
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cproperty_char = of_get_property(np, "manufacturer", NULL);
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strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
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sizeof(str));
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@ -584,7 +587,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
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* may be as soon as needed.
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*/
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hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
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hub->boost_up = USB251XB_DEF_BOOST_UP;
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hub->boost_57 = USB251XB_DEF_BOOST_57;
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hub->boost_14 = USB251XB_DEF_BOOST_14;
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hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
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