linux-kernel - [PATCH] usb: gadget: u_serial.h: increase MAX_U_SERIAL

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Date:   Tue, 16 Jun 2020 13:56:17 +0800
From:   Macpaul Lin <macpaul.lin@...iatek.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
CC:     Mediatek WSD Upstream <wsd_upstream@...iatek.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Macpaul Lin <macpaul.lin@...il.com>
Subject: [PATCH] usb: gadget: u_serial.h: increase MAX_U_SERIAL_PORTS to 8

Mediatek's LTE modem needs up to 8 ports to connect to PC for logging
and debugging under some scenarios. Hence we suggest to increase the
definition of MAX_U_SERIAL_PORTS to 8 for some complex embedded systems.

Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
---
 drivers/usb/gadget/function/u_serial.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/function/u_serial.h b/drivers/usb/gadget/function/u_serial.h
index e5b08ab..7d61113 100644
--- a/drivers/usb/gadget/function/u_serial.h
+++ b/drivers/usb/gadget/function/u_serial.h
@@ -12,7 +12,7 @@
 #include <linux/usb/composite.h>
 #include <linux/usb/cdc.h>
 
-#define MAX_U_SERIAL_PORTS	4
+#define MAX_U_SERIAL_PORTS	8
 
 struct f_serial_opts {
 	struct usb_function_instance func_inst;
-- 
1.7.9.5