linux-kernel - [PATCH 2/2] tty: serial: 8250

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Message-Id: <20200911093927.608024-2-hsinyi@chromium.org>
Date:   Fri, 11 Sep 2020 17:39:28 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     linux-serial@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Changqi Hu <changqi.hu@...iatek.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Subject: [PATCH 2/2] tty: serial: 8250_mtk: set regshift for mmio32

To use mmio32, we also need to set regshift.

Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
---
 drivers/tty/serial/8250/8250_mtk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index 7b0dec14c8b80..41f4120abdf29 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);
 }
-- 
2.28.0.618.gf4bc123cb7-goog