linux-kernel - [PATCH v2] usb: usb251xb: add boost-up property support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220127231437.10893-1-tomm.merciai@gmail.com>
Date:   Fri, 28 Jan 2022 00:14:37 +0100
From:   Tommaso Merciai <tomm.merciai@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     tomm.merciai@...il.com, linuxfancy@...glegroups.com,
        Richard Leitner <richard.leitner@...data.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] usb: usb251xb: add boost-up property support

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@...il.com>
---
Changes since v1:
 - Fix patch as suggested by RLeitner

 drivers/usb/misc/usb251xb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 507deef1f709..b60ab148e6ac 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -543,6 +543,8 @@ 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;
 
+	of_property_read_u8(np, "boost-up", &hub->boost_up))
+
 	cproperty_char = of_get_property(np, "manufacturer", NULL);
 	strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
 		sizeof(str));
@@ -584,7 +586,6 @@ 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