linux-kernel - Subject: [PATCH] usb: gadget:Fixed the problem of abnormal function of mobile phone as UVC camera.

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Message-ID:
 <TYUPR06MB621753631B9F7836583E7BEED2AB2@TYUPR06MB6217.apcprd06.prod.outlook.com>
Date: Thu, 25 Jul 2024 06:40:14 +0000
From: 胡连勤 <hulianqin@...o.com>
To: "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC: opensource.kernel <opensource.kernel@...o.com>
Subject: Subject: [PATCH] usb: gadget:Fixed the problem of abnormal function
 of mobile  phone as UVC camera.

From b0058484e3fe7830c2092d5d19b46bf1bab73d83 Mon Sep 17 00:00:00 2001
From: Lianqin Hu <hulianqin@...o.com>
Date: Wed, 24 Jul 2024 18:52:27 +0800
Subject: [PATCH] usb: gadget:Fixed the problem of abnormal function of mobile
 phone as UVC camera.

Android 15 USB function option interface adds camera function.
after switching to camera function, USB enumeration is abnormal.
the reason is that bind_deactivated is set to true in f_uvc driver,
which causes gadget->deactivated to be set to true during
usb_add_function,and dwc3 controller cannot perform pullup operation.

Therefore, modify f_uvc driver and remove the setting operation
of func.bind_deactivated.

Signed-off-by: Lianqin Hu <hulianqin@...o.com>
---
 drivers/usb/gadget/function/f_uvc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index 40187b7112e7..6d63bea14211 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -1107,7 +1107,6 @@ static struct usb_function *uvc_alloc(struct usb_function_instance *fi)
 	uvc->func.disable = uvc_function_disable;
 	uvc->func.setup = uvc_function_setup;
 	uvc->func.free_func = uvc_free;
-	uvc->func.bind_deactivated = true;

 	return &uvc->func;

-- 
2.39.0