[PATCH 09/11] Kconfig: serial: Depend on correct xPL symbol

[Jonas Karlman]

Hi Tom,

On 7/9/2026 3:53 AM, Tom Rini wrote:
> On Wed, Jul 08, 2026 at 10:05:35PM +0000, Jonas Karlman wrote:
> 
>> Change xPL_SERIAL_PRESENT symbols to depend on the xPL_DM_SERIAL symbol
>> intended for the related xPL phase instead of the DM_SERIAL symbol
>> used for U-Boot proper to make CONFIG_IS_ENABLED(SERIAL_PRESENT) guards
>> work as intended.
>>
>> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
>> ---
>>  drivers/serial/Kconfig | 6 +++---
>>  1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
>> index e221800d5d06..f125061fe184 100644
>> --- a/drivers/serial/Kconfig
>> +++ b/drivers/serial/Kconfig
>> @@ -71,7 +71,7 @@ config SERIAL_PRESENT
>>  
>>  config SPL_SERIAL_PRESENT
>>  	bool "Provide a serial driver in SPL"
>> -	depends on DM_SERIAL && SPL
>> +	depends on SPL_DM_SERIAL
>>  	default y
>>  	help
>>  	  In very space-constrained devices even the full UART driver is too
> 
> Using the database option to qconfig.py, this is not equivalent. There's
> 901 platforms today that enable SPL_SERIAL_PRESENT, and 344 that enable
> SPL_SERIAL_PRESENT but not SPL_DM_SERIAL. Now it's possible that there's
> no functional change here. Something like "pinetab" would be a single
> platform to check the size changes on as it's SPL_SERIAL_PRESENT=y and
> SPL_DM_SERIAL=n.
> 

This discrepancy is likely due to the 'default y' and the strange
'depend on', based on my observation xPL_SERIAL_PRESENT is mostly used
to guard U_BOOT_DRIVER() and other DM related functions, so I do not
expect any functional change after these changes.

Also did quick build tests of pinetab_defconfig and there was no binary
change to spl/ before or after this series.

Regards,
Jonas