Extend the driver to allow dm device removal, but always let the
console serial device power domain enabled, so that U-Boot doesn't
crash when i. e. the serial output is enabled for debugging.
Signed-off-by: Anatolij Gustschin <ag...@denx.de>
---
Changes in v2:
- None
drivers/serial/serial_lpuart.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c
index 57dd4a72c6..b028f4b35f 100644
--- a/drivers/serial/serial_lpuart.c
+++ b/drivers/serial/serial_lpuart.c
@@ -489,6 +489,13 @@ static int lpuart_serial_probe(struct udevice *dev)
return _lpuart_serial_init(dev);
}
+static int lpuart_serial_remove(struct udevice *dev)
+{
+ if (dev == gd->cur_serial_dev)
+ dev->flags |= DM_FLAG_REMOVE_WITH_PD_ON;
+ return 0;
+}
+
static int lpuart_serial_ofdata_to_platdata(struct udevice *dev)
{
struct lpuart_serial_platdata *plat = dev->platdata;
@@ -543,5 +550,7 @@ U_BOOT_DRIVER(serial_lpuart) = {
.ofdata_to_platdata = lpuart_serial_ofdata_to_platdata,
.platdata_auto_alloc_size = sizeof(struct lpuart_serial_platdata),
.probe = lpuart_serial_probe,
+ .remove = lpuart_serial_remove,
.ops = &lpuart_serial_ops,
+ .flags = DM_FLAG_OS_PREPARE,
};
--
2.17.1
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