From: Tommaso Merciai <tomm.merciai@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: tomm.merciai@gmail.com, linuxfancy@googlegroups.com,
Richard Leitner <richard.leitner@skidata.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] usb: usb251xb: add boost-up property support
Date: Sat, 22 Jan 2022 00:26:12 +0100 [thread overview]
Message-ID: <20220121232612.7283-1-tomm.merciai@gmail.com> (raw)
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@gmail.com>
---
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
next reply other threads:[~2022-01-21 23:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-21 23:26 Tommaso Merciai [this message]
2022-01-24 7:03 ` [PATCH] usb: usb251xb: add boost-up property support Richard Leitner - SKIDATA
2022-01-25 21:42 ` Tommaso Merciai
2022-01-26 7:08 ` Richard Leitner
2022-01-27 17:53 ` Tommaso Merciai
2022-01-28 15:31 ` Sergei Shtylyov
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