linux-kernel - [RFC PATCH 2/2] usb: quirks: Add quirk to fix card reader and suspend on MacBooks

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Message-Id: <20190213211323.6072-3-mironov.ivan@gmail.com>
Date:   Thu, 14 Feb 2019 02:13:23 +0500
From:   Ivan Mironov <mironov.ivan@...il.com>
To:     linux-usb@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Martin Liu <liumartin@...gle.com>,
        YueHaibing <yuehaibing@...wei.com>,
        Mathias Nyman <mathias.nyman@...ux.intel.com>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Jon Flatley <jflat@...omium.org>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Benson Leung <bleung@...omium.org>,
        Harry Pan <harry.pan@...el.com>,
        Jack Stocker <jackstocker.93@...il.com>,
        Danilo Krummrich <danilokrummrich@...develop.de>,
        Samuel Sadok <samuel.sadok@...ewin.ch>,
        Ivan Mironov <mironov.ivan@...il.com>
Subject: [RFC PATCH 2/2] usb: quirks: Add quirk to fix card reader and suspend on MacBooks

This enabled USB_QUIRK_DISABLE_LINK_ON_SUSPEND for the embedded SD card
reader used in Apple MacBook laptops.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111201
Link: https://bugzilla.kernel.org/show_bug.cgi?id=202509
Signed-off-by: Ivan Mironov <mironov.ivan@...il.com>
---
 drivers/usb/core/quirks.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index c26ba784dc54..818f949ff1b9 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -310,6 +310,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Apple Card Reader */
+	{ USB_DEVICE(0x05ac, 0x8406), .driver_info =
+	  USB_QUIRK_DISABLE_LINK_ON_SUSPEND },
+
 	/* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */
 	{ USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM },
 
-- 
2.20.1