[Linux-stm32] [PATCH] [RFC] ARM: dts: stm32: Add DTs for STM32MP15x variants of the DH SOM and PDK2

[Marek Vasut]

On 3/24/20 2:04 PM, Alexandre Torgue wrote:
> 
> 
> On 3/23/20 3:31 AM, Marek Vasut wrote:
>> The DH PDK2 can be populated with SoM with any STM32MP15x variant.
>> Add the DTs describing the remaining combinations.
>>
>> Signed-off-by: Marek Vasut <marex at denx.de>
>> Cc: Alexandre Torgue <alexandre.torgue at st.com>
>> Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
>> Cc: Patrice Chotard <patrice.chotard at st.com>
>> Cc: Patrick Delaunay <patrick.delaunay at st.com>
>> Cc: linux-stm32 at st-md-mailman.stormreply.com
>> To: linux-arm-kernel at lists.infradead.org
>> ---
>> NOTE: Is there a better way to do this than to have this kind of a
>>     combinatorial explosion of DTs ?
> 
> I have no better idea. Question was the same for stm32 boards, and I
> chose to take this option.

One option would be to just have DT for the most feature-complete option
(157) and then have U-Boot remove the nodes for HW which is not present
on the particular SoC option if it's one of the more limited ones (153,
151).