USB: storage: ums-realtek: Whitelist auto-delink support

BugLink: https://bugs.launchpad.net/bugs/1845036

commit 1902a01e upstream.

Auto-delink requires writing special registers to ums-realtek devices.
Unconditionally enable auto-delink may break newer devices.

So only enable auto-delink by default for the original three IDs,
0x0138, 0x0158 and 0x0159.

Realtek is working on a patch to properly support auto-delink for other
IDs.

BugLink: https://bugs.launchpad.net/bugs/1838886Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190827173450.13572-2-kai.heng.feng@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Connor Kuehl <connor.kuehl@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

drivers/usb/storage/realtek_cr.c

@@ -1006,6 +1006,8 @@ static int init_realtek_cr(struct us_data *us)
 			goto INIT_FAIL;
 	}
 
+	if (CHECK_PID(chip, 0x0138) || CHECK_PID(chip, 0x0158) ||
+	    CHECK_PID(chip, 0x0159)) {
 		if (CHECK_FW_VER(chip, 0x5888) || CHECK_FW_VER(chip, 0x5889) ||
 				CHECK_FW_VER(chip, 0x5901))
 			SET_AUTO_DELINK(chip);
@@ -1013,6 +1015,7 @@ static int init_realtek_cr(struct us_data *us)
 			if (SUPPORT_AUTO_DELINK(chip))
 				SET_AUTO_DELINK(chip);
 		}
+	}
 #ifdef CONFIG_REALTEK_AUTOPM
 	if (ss_en)
 		realtek_cr_autosuspend_setup(us);