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usb: gadget: increase the buffer size to 1 MB for tty ports

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To support LTE peak data rates of 150MBPS Uplink for DUN+SoftAP usecases

Change-Id: I947b6338661cab3d3346d280b3ec4ccbac6b2f94
Signed-off-by: Paras Singh Jain <parassin@codeaurora.org>
This commit is contained in:
Paras Singh Jain 2020-09-02 19:11:23 +05:30
commit 384bf8b4cf
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/gadget/function/u_serial.c
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@ -1150,12 +1150,15 @@ gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding)
}
tty_port_init(&port->port);
tty_buffer_set_limit(&port->port, 8388608);
spin_lock_init(&port->port_lock);
init_waitqueue_head(&port->drain_wait);
init_waitqueue_head(&port->close_wait);
INIT_DELAYED_WORK(&port->push, gs_rx_push);
pr_debug("%s open:ttyGS%d and set 8388608, avail:%d\n", __func__,
port_num, tty_buffer_space_avail(&port->port));
INIT_DELAYED_WORK(&port->push, gs_rx_push);
INIT_LIST_HEAD(&port->read_pool);
INIT_LIST_HEAD(&port->read_queue);
INIT_LIST_HEAD(&port->write_pool);