From 179e00a320df905f22cf2788880d5e1455795bf7 Mon Sep 17 00:00:00 2001 From: Xiang W Date: Tue, 11 Jun 2024 19:19:31 +0800 Subject: [PATCH] lib: utils/serial: Skip initialize serial when dt is not enabled When the dt node has a status property and the value is not ok or okay, skip initializing serial. Signed-off-by: Xiang W Reviewed-by: Anup Patel --- lib/utils/serial/fdt_serial.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/utils/serial/fdt_serial.c b/lib/utils/serial/fdt_serial.c index 0baa7228..8b6e6b97 100644 --- a/lib/utils/serial/fdt_serial.c +++ b/lib/utils/serial/fdt_serial.c @@ -40,6 +40,10 @@ int fdt_serial_init(void) else noff = fdt_path_offset(fdt, prop); } + if (-1 < noff) { + if (!fdt_node_is_enabled(fdt, noff)) + noff = -1; + } } /* First check DT node pointed by stdout-path */ @@ -68,6 +72,9 @@ int fdt_serial_init(void) if (noff < 0) continue; + if (!fdt_node_is_enabled(fdt, noff)) + continue; + /* drv->init must not be NULL */ if (drv->init == NULL) return SBI_EFAIL;