[U-Boot] [PATCH v2] dm: serial: Add a REQUIRE_SERIAL_CONSOLE option for boards with no serial port

[Simon Glass]

On 10 August 2015 at 06:59, Simon Glass <sjg at chromium.org> wrote:
> On 8 August 2015 at 09:45, Hans de Goede <hdegoede at redhat.com> wrote:
>> Currently the serial code assumes that there is always at least one serial
>> port (and panics / crashes due to null pointer dereferences when there is
>> none).
>>
>> This makes it impossible to use u-boot on boards where there is no (debug)
>> serial port, because e.g. all uart pins are muxed to another function.
>>
>> This commit adds a CONFIG_REQUIRE_SERIAL_CONSOLE Kconfig option, which
>> defaults to y (preserving existing behavior), which can be set to n on
>> such boards to make them work.
>>
>> This commit only implements this for CONFIG_DM_SERIAL=y configs, as allowing
>> running without a serial port for CONFIG_DM_SERIAL=n configs is non trivial,
>> and is not necessary at this moment.
>>
>> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
>> ---
>> Changes in v2:
>> -Fix some typos in the Kconfig description / help-text.
>> ---
>>  drivers/serial/Kconfig         | 11 +++++++++++
>>  drivers/serial/serial-uclass.c | 20 +++++++++++++++++---
>>  2 files changed, 28 insertions(+), 3 deletions(-)
>
> Acked-by: Simon Glass <sjg at chromium.org>

Applied to u-boot-dm, thanks!