Messages in this thread Patch in this message | | | From | Tommaso Merciai <> | Subject | [PATCH v3] usb: usb251xb: add boost-up property support | Date | Fri, 28 Jan 2022 19:17:13 +0100 |
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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
Signed-off-by: Tommaso Merciai <tomm.merciai@gmail.com> --- Changes since v1: - Fix patch as suggested by RLeitner
Changes since v2: - Fix commit body as suggested by Shtylyov - Fix commit msg - Fix patch as suggested by RLeitner and Shtylyov
drivers/usb/misc/usb251xb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 507deef1f709..04c4e3fed094 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -543,6 +543,9 @@ 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", &hub->boost_up)) + 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 +587,6 @@ 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
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