From: Qipan Li <Qipan.Li@csr.com>
Date: Tue, 26 May 2015 09:35:59 +0000 (+0000)
Subject: serial: sirf: correct the fifo empty_bit
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=86459b0e407798cc16d52d493a624251e05ce6ad;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

serial: sirf: correct the fifo empty_bit

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h
index 3ab3141e1aae..644f86529571 100644
--- a/drivers/tty/serial/sirfsoc_uart.h
+++ b/drivers/tty/serial/sirfsoc_uart.h
@@ -117,7 +117,7 @@ u32 uart_usp_ff_empty_mask(struct uart_port *port)
 {
 	u32 empty_bit;
 
-	empty_bit = ilog2(port->fifosize);
+	empty_bit = ilog2(port->fifosize) + 1;
 	return (1 << empty_bit);
 }
 struct sirfsoc_uart_register sirfsoc_usp = {