linux-kernel - [PATCH 2/2] usb: misc: onboard_dev: Add Realtek RTL8188 WiFi (0bda:0179)

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Message-Id: <20250403-rtl-onboard-v1-2-10ca9a6a4ee0@posteo.net>
Date: Thu, 03 Apr 2025 16:07:49 +0200
From: J. Neuschäfer via B4 Relay <devnull+j.ne.posteo.net@...nel.org>
To: Johannes Berg <johannes@...solutions.net>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 J. Neuschäfer <j.neuschaefer@....net>, 
 Matthias Kaehlcke <mka@...omium.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Jes Sorensen <Jes.Sorensen@...il.com>, linux-wireless@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-usb@...r.kernel.org, 
 J. Neuschäfer <j.ne@...teo.net>
Subject: [PATCH 2/2] usb: misc: onboard_dev: Add Realtek RTL8188 WiFi
 (0bda:0179)

From: "J. Neuschäfer" <j.ne@...teo.net>

Realtek RTL8188EU 2.4 GHz WiFi modules are found soldered into some
embedded devices, such as the Fernsehfee 3.0 set-top box.

It requires a 3.3V power supply.

Signed-off-by: J. Neuschäfer <j.ne@...teo.net>
---

checkpatch.pl flags the "usbbda" prefix as undocumented because it isn't
in vendor-prefixes.yaml. It is, however, an established pattern:

$ git grep -E 'usb[0-9a-f]{1,4},[0-9a-f]{1,4}' | wc -l
213
---
 drivers/usb/misc/onboard_usb_dev.c | 1 +
 drivers/usb/misc/onboard_usb_dev.h | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c
index 75ac3c6aa92d0d925bb9488d1e6295548446bf98..2f9e8f8108d8c36403b02f3e66db55757d4808ef 100644
--- a/drivers/usb/misc/onboard_usb_dev.c
+++ b/drivers/usb/misc/onboard_usb_dev.c
@@ -584,6 +584,7 @@ static const struct usb_device_id onboard_dev_id_table[] = {
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5411) }, /* RTS5411 USB 2.1 HUB */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 HUB */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5414) }, /* RTS5414 USB 2.1 HUB */
+	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0179) }, /* RTL8188ETV 2.4GHz WiFi */
 	{ USB_DEVICE(VENDOR_ID_TI, 0x8025) }, /* TI USB8020B 3.0 HUB */
 	{ USB_DEVICE(VENDOR_ID_TI, 0x8027) }, /* TI USB8020B 2.0 HUB */
 	{ USB_DEVICE(VENDOR_ID_TI, 0x8140) }, /* TI USB8041 3.0 HUB */
diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h
index 317b3eb99c0255269bb0dbf27b9aa29ef1bc15bd..bee255306d21e1c95d52aaf6aea97518321ea285 100644
--- a/drivers/usb/misc/onboard_usb_dev.h
+++ b/drivers/usb/misc/onboard_usb_dev.h
@@ -38,6 +38,13 @@ static const struct onboard_dev_pdata realtek_rts5411_data = {
 	.is_hub = true,
 };

+static const struct onboard_dev_pdata realtek_rtl8188_data = {
+	.reset_us = 0,
+	.num_supplies = 1,
+	.supply_names = { "vdd" },
+	.is_hub = false,
+};
+
 static const struct onboard_dev_pdata ti_tusb8020b_data = {
 	.reset_us = 3000,
 	.num_supplies = 1,
@@ -111,6 +118,7 @@ static const struct of_device_id onboard_dev_match[] = {
 	{ .compatible = "usb5e3,610", .data = &genesys_gl852g_data, },
 	{ .compatible = "usb5e3,620", .data = &genesys_gl852g_data, },
 	{ .compatible = "usb5e3,626", .data = &genesys_gl852g_data, },
+	{ .compatible = "usbbda,179", .data = &realtek_rtl8188_data, },
 	{ .compatible = "usbbda,411", .data = &realtek_rts5411_data, },
 	{ .compatible = "usbbda,5411", .data = &realtek_rts5411_data, },
 	{ .compatible = "usbbda,414", .data = &realtek_rts5411_data, },

-- 
2.48.0.rc1.219.gb6b6757d772