From: Hsin-Yi Wang <hsinyi@chromium.org>
Date: Tue, 15 Sep 2020 05:48:27 +0000 (+0800)
Subject: tty: serial: 8250_mtk: set regshift for mmio32
X-Git-Tag: v5.15~2677^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ea4de367e57d53b37ecb32cea3b5c753162b070a;p=platform%2Fkernel%2Flinux-starfive.git

tty: serial: 8250_mtk: set regshift for mmio32

To use mmio32, we also need to set regshift.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Eddie Huang <eddie.huang@mediatek.com>
Link: https://lore.kernel.org/r/20200915054825.3289105-2-hsinyi@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index 7b0dec1..41f4120 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -669,6 +669,7 @@ static int __init early_mtk8250_setup(struct earlycon_device *device,
 		return -ENODEV;
 
 	device->port.iotype = UPIO_MEM32;
+	device->port.regshift = 2;
 
 	return early_serial8250_setup(device, NULL);
 }