dm: console: Check for serial devices properly
With driver model the serial device is often not called "serial". Mark
driver-model stdio devices so that they can be detected and we can look up
the uclass. This is a more reliable way of finding out whether the console
is connected to a serial device or not.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/console.c b/common/console.c
index b7ed9a3..ec4af3b 100644
--- a/common/console.c
+++ b/common/console.c
@@ -8,6 +8,7 @@
#include <common.h>
#include <console.h>
#include <debug_uart.h>
+#include <dm.h>
#include <stdarg.h>
#include <iomux.h>
#include <malloc.h>
@@ -150,12 +151,20 @@
* console_dev_is_serial() - Check if a stdio device is a serial device
*
* @sdev: Device to check
- * @return true if this device is a serial device
+ * @return true if this device is in the serial uclass (or for pre-driver-model,
+ * whether it is called "serial".
*/
static bool console_dev_is_serial(struct stdio_dev *sdev)
{
bool is_serial;
+#ifdef CONFIG_DM_SERIAL
+ if (sdev->flags & DEV_FLAGS_DM) {
+ struct udevice *dev = sdev->priv;
+
+ is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
+ } else
+#endif
is_serial = !strcmp(sdev->name, "serial");
return is_serial;