mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Jhon Wilker Rodrigues Aquino <jhonwilker0112@gmail.com>
To: Richard Leitner <richard.leitner@linux.dev>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Jhon Wilker Rodrigues Aquino <jhon.aquino@autotrac.com.br>
Subject: [PATCH 2/2] usb: misc: usb251xb: configure battery charging from DT
Date: Tue,  3 Nov 2026 15:55:14 -0300	[thread overview]
Message-ID: <20261103185514.72144-3-jhonwilker0112@gmail.com> (raw)
In-Reply-To: <20261103185514.72144-1-jhonwilker0112@gmail.com>

From: Jhon Wilker Rodrigues Aquino <jhon.aquino@autotrac.com.br>

Parse the battery-charging-enable port list from the device tree and set the corresponding bits in the hub configuration register.

Keep charging disabled by default when the property is omitted.

Signed-off-by: Jhon Wilker Rodrigues Aquino <jhon.aquino@autotrac.com.br>
---
 drivers/usb/misc/usb251xb.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index fb0693742f018..166eb541ef161 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -577,6 +577,10 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 			      (wchar_t *)hub->serial,
 			      USB251XB_STRING_BUFSIZE);
 
+	hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
+	usb251xb_get_ports_field(hub, "battery-charging-enable", data->port_cnt,
+				 true, &hub->bat_charge_en);
+
 	/*
 	 * The datasheet documents the register as 'Port Swap' but in real the
 	 * register controls the USB DP/DM signal swapping for each port.
@@ -588,7 +592,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 	/* The following parameters are currently not exposed to devicetree, but
 	 * may be as soon as needed.
 	 */
-	hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
 	hub->boost_57 = USB251XB_DEF_BOOST_57;
 	hub->boost_14 = USB251XB_DEF_BOOST_14;
 	hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
-- 
2.43.0


  parent reply	other threads:[~2026-11-03 18:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-03 18:55 [PATCH 0/2] usb: misc: usb251xb: add DT battery charging configuration Jhon Wilker Rodrigues Aquino
2026-11-03 18:55 ` [PATCH 1/2] dt-bindings: usb: microchip,usb251xb: add battery-charging-enable property Jhon Wilker Rodrigues Aquino
2026-11-03 18:55 ` Jhon Wilker Rodrigues Aquino [this message]
2026-11-03 20:01 ` [PATCH v2 0/2] usb: misc: usb251xb: add DT battery charging configuration Jhon Wilker Rodrigues Aquino
2026-11-03 20:01   ` [PATCH v2 1/2] dt-bindings: usb: microchip,usb251xb: add battery-charging-enable property Jhon Wilker Rodrigues Aquino
2026-11-03 20:52     ` Krzysztof Kozlowski
2026-11-03 20:01   ` [PATCH v2 2/2] usb: misc: usb251xb: configure battery charging from DT Jhon Wilker Rodrigues Aquino

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20261103185514.72144-3-jhonwilker0112@gmail.com \
    --to=jhonwilker0112@gmail.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=jhon.aquino@autotrac.com.br \
    --cc=krzk+dt@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=richard.leitner@linux.dev \
    --cc=robh@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®