From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tommaso Merciai <tomm.merciai@gmail.com>,
Richard Leitner <richard.leitner@linux.dev>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sasha Levin <sashal@kernel.org>,
richard.leitner@skidata.com, linux-usb@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 02/11] usb: usb251xb: add boost-up property support
Date: Tue, 15 Feb 2022 10:30:55 -0500 [thread overview]
Message-ID: <20220215153104.581786-2-sashal@kernel.org> (raw)
In-Reply-To: <20220215153104.581786-1-sashal@kernel.org>
From: Tommaso Merciai <tomm.merciai@gmail.com>
[ Upstream commit 5c2b9c61ae5d8ad0a196d33b66ce44543be22281 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 5f7734c729b1d..8444b92f9737f 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -510,6 +510,9 @@ 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));
@@ -543,7 +546,6 @@ 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_swap = USB251XB_DEF_PORT_SWAP;
--
2.34.1
next prev parent reply other threads:[~2022-02-15 15:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 15:30 [PATCH AUTOSEL 4.19 01/11] ARM: OMAP2+: hwmod: Add of_node_put() before break Sasha Levin
2022-02-15 15:30 ` Sasha Levin [this message]
2022-02-15 15:30 ` [PATCH AUTOSEL 4.19 03/11] irqchip/sifive-plic: Add missing thead,c900-plic match string Sasha Levin
2022-02-20 9:54 ` Pavel Machek
2022-02-20 11:05 ` Marc Zyngier
2022-02-15 15:30 ` [PATCH AUTOSEL 4.19 04/11] netfilter: conntrack: don't refresh sctp entries in closed state Sasha Levin
2022-02-15 15:30 ` [PATCH AUTOSEL 4.19 05/11] arm64: dts: meson-gx: add ATF BL32 reserved-memory region Sasha Levin
2022-02-15 15:30 ` [PATCH AUTOSEL 4.19 06/11] kconfig: let 'shell' return enough output for deep path names Sasha Levin
2022-02-20 10:01 ` Pavel Machek
2022-02-15 15:31 ` [PATCH AUTOSEL 4.19 07/11] ata: libata-core: Disable TRIM on M88V29 Sasha Levin
2022-02-15 15:31 ` [PATCH AUTOSEL 4.19 08/11] tracing: Fix tp_printk option related with tp_printk_stop_on_boot Sasha Levin
2022-02-15 15:31 ` [PATCH AUTOSEL 4.19 09/11] NFSD: Fix offset type in I/O trace points Sasha Levin
2022-02-20 10:00 ` Pavel Machek
2022-02-15 15:31 ` [PATCH AUTOSEL 4.19 10/11] net: usb: qmi_wwan: Add support for Dell DW5829e Sasha Levin
2022-02-15 15:31 ` [PATCH AUTOSEL 4.19 11/11] net: macb: Align the dma and coherent dma masks Sasha Levin
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