serial_arc: Allocate buffer for private data

Apparently we never allocated buffer for arc_serial_platdata
which for some reason never caused problems when executed in nSIM.
But in Qemu this causes expected problems.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

diff --git a/drivers/serial/serial_arc.c b/drivers/serial/serial_arc.c
index 980b38d2a1ca7f54796f69c8daad47ba8d4a698b..70dbc6d6b53f50eaaceba28d47e528fa95363fac 100644 (file)
--- a/drivers/serial/serial_arc.c
+++ b/drivers/serial/serial_arc.c
@@ -126,6 +126,7 @@ U_BOOT_DRIVER(serial_arc) = {
        .id     = UCLASS_SERIAL,
        .of_match = arc_serial_ids,
        .ofdata_to_platdata = arc_serial_ofdata_to_platdata,
+       .platdata_auto_alloc_size = sizeof(struct arc_serial_platdata),
        .probe = arc_serial_probe,
        .ops    = &arc_serial_ops,
 };