[U-Boot] [PATCH v2 08/12] dm: stdio: Allow lazy probing of video devices

[Bin Meng]

On Thu, Oct 6, 2016 at 10:42 AM, Simon Glass <sjg at chromium.org> wrote:
> At present all video devices are probed on start-up. It would be better to
> probe a device only when it is needed. This can happen if it is referenced
> in the stdout environment variable, for example.
>
> Add support for this by searching for a suitable device when needed, probing
> it, and finding the stdio device it creates.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v2:
> - Add comment as to why we need #ifndef CONFIG_SYS_CONSOLE_IS_IN_ENV
> - Add comment as to why we check for "," in stdio_get_by_name()
>
>  common/stdio.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 83 insertions(+), 4 deletions(-)
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>