From: Yoshinori Sato <ysato@users.sourceforge.jp>
Date: Fri, 28 Dec 2018 15:04:46 +0000 (+0900)
Subject: fix 8bit register
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=4a04cc976e2e82ed81bd196c88010c43abcbb9da;p=uclinux-h8%2Flinux.git

fix 8bit register
---

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 39b82449d20f..ce1b37e87547 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2959,12 +2959,13 @@ static int sci_init_single(struct platform_device *dev,
 	port->flags		= UPF_FIXED_PORT | UPF_BOOT_AUTOCONF | p->flags;
 	port->fifosize		= sci_port->params->fifosize;
 
-	if (port->type == PORT_SCI) {
-		if (sci_port->reg_size >= 0x20)
-			port->regshift = 2;
-		else
-			port->regshift = 1;
-	}
+	if (port->type == PORT_SCI)
+		/*
+		  < 0x10: 8bit alignment
+		  >= 0x10 && < 0x20: 16bit alignment
+		  >= 0x20: 32bit alignment
+		*/
+		port->regshift = (sci_port->reg_size >> 4);
 
 	/*
 	 * The UART port needs an IRQ value, so we peg this to the RX IRQ