From edf18a83f8dc993279947cfc7faaba7dedf1ad82 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 28 Feb 2019 17:19:54 +0200
Subject: [PATCH] x86: acpi: Not every platform has serial console a first
device
We may not do an assumption that current console device is always a first
of UCLASS_SERIAL one.
For example, on properly described Intel Edison board the console UART
is a third one.
Use current serial device as described in global data.
Fixes: a61cbad78e67 ("dm: serial: Adjust serial_getinfo() to use proper API")
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---
arch/x86/lib/acpi_table.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index 04058a60d7..270274f6b3 100644
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -347,7 +347,7 @@ static void acpi_create_spcr(struct acpi_spcr *spcr)
uint serial_width;
int access_size;
int space_id;
- int ret;
+ int ret = -ENODEV;
/* Fill out header fields */
acpi_fill_header(header, "SPCR");
@@ -355,8 +355,8 @@ static void acpi_create_spcr(struct acpi_spcr *spcr)
header->revision = 2;
/* Read the device once, here. It is reused below */
- ret = uclass_first_device_err(UCLASS_SERIAL, &dev);
- if (!ret)
+ dev = gd->cur_serial_dev;
+ if (dev)
ret = serial_getinfo(dev, &serial_info);
if (ret)
serial_info.type = SERIAL_CHIP_UNKNOWN;
--
2.39.5