Hi Anatolij,
> Subject: [PATCH v2 2/2] serial: lpuart: request dm device removal when
> booting OS
>
> 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;
How about introduce a device tree property for DM? Then
Set the flags in common code, not in specific driver.
Thanks,
Peng
> + 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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