linux-kernel - [PATCH 2/4] usb: misc: onboard-hub: add support for Microchip USB2514B USB 2.0 hub

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Date:   Fri, 22 Jul 2022 15:05:52 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <mka@...omium.org>,
        <alexandre.torgue@...s.st.com>
CC:     <arnd@...db.de>, <linux-usb@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <amelie.delaunay@...s.st.com>
Subject: [PATCH 2/4] usb: misc: onboard-hub: add support for Microchip USB2514B USB 2.0 hub

Add support for Microchip USB2514B USB 2.0 hub to the onboard usb hub
driver. Adopt the generic usb-device compatible ("usbVID,PID") as
discussed with Matthias in [1].
Some STM32MP1 boards have this hub on-board, with a supply that needs to
be enabled for proper operation.

[1] https://lore.kernel.org/lkml/YW9CUabfA0HrtTAq@google.com/

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
---
 drivers/usb/misc/onboard_usb_hub.c | 2 ++
 drivers/usb/misc/onboard_usb_hub.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
index 6b9b949d17d30..929a4e724ec12 100644
--- a/drivers/usb/misc/onboard_usb_hub.c
+++ b/drivers/usb/misc/onboard_usb_hub.c
@@ -310,6 +310,7 @@ static struct platform_driver onboard_hub_driver = {
 /************************** USB driver **************************/
 
 #define VENDOR_ID_REALTEK	0x0bda
+#define VENDOR_ID_MICROCHIP	0x0424
 
 /*
  * Returns the onboard_hub platform device that is associated with the USB
@@ -387,6 +388,7 @@ static const struct usb_device_id onboard_hub_id_table[] = {
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5411) }, /* RTS5411 USB 2.1 */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5414) }, /* RTS5414 USB 2.1 */
+	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2514) }, /* USB2514B USB 2.0 */
 	{}
 };
 MODULE_DEVICE_TABLE(usb, onboard_hub_id_table);
diff --git a/drivers/usb/misc/onboard_usb_hub.h b/drivers/usb/misc/onboard_usb_hub.h
index d3a5b6938582e..43d6af4230dfd 100644
--- a/drivers/usb/misc/onboard_usb_hub.h
+++ b/drivers/usb/misc/onboard_usb_hub.h
@@ -11,6 +11,7 @@ static const struct of_device_id onboard_hub_match[] = {
 	{ .compatible = "usbbda,5411" },
 	{ .compatible = "usbbda,414" },
 	{ .compatible = "usbbda,5414" },
+	{ .compatible = "usb424,2514" },
 	{}
 };
 
-- 
2.25.1