UPSTREAM: 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>
(cherry picked from commit ea4de367e57d53b37ecb32cea3b5c753162b070a)

BUG=b:168171144
TEST=`earlycon` and see kernel logs

Change-Id: I3e512263f51e907207db284c6e9af67a7943afc9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2416056
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Auto-Submit: Hsin-Yi Wang <hsinyi@chromium.org>
Commit-Queue: Stephen Boyd <swboyd@chromium.org>
(cherry picked from commit 5bf85e26f555f9ff5e2c99172e86bbdcc2bd5681)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2543865
Commit-Queue: Nicolas Boichat <drinkcat@chromium.org>
1 file changed