Public bug reported:

[Impact]
the following two upstream patches break mediatek downstream regulator device 
tree setup:
d3cf8a17498d regulator: mt6360: De-capitalize devicetree regulator subnodes
1e0fb1136461 power: supply: mt6360_charger: Fix of_match for usb-otg-vbus 
regulator

[Fix]
in order to maintain the device tree compatibility, the kernel has to support 
both upstream and downstream device tree compatible strings.

[Test]
check if the downstream device tree nodes are still able to be probed.

[Where problems could occur]
the default behavior is to use upstream device tree compatibility strings, so 
the issue might arise if the downstream device tree nodes are not probed 
correctly. however, this is unlikely unless the user mixes the upper and lower 
case of nodes.

LP: #2081960

** Affects: linux-mtk (Ubuntu)
     Importance: Critical
     Assignee: Jian Hui Lee (jianhuilee)
         Status: In Progress

** Affects: linux-mtk (Ubuntu Jammy)
     Importance: Critical
     Assignee: Jian Hui Lee (jianhuilee)
         Status: In Progress

** Changed in: linux-mtk (Ubuntu)
     Assignee: (unassigned) => Jian Hui Lee (jianhuilee)

** Changed in: linux-mtk (Ubuntu)
   Importance: Undecided => Critical

** Changed in: linux-mtk (Ubuntu)
       Status: New => In Progress

** Also affects: linux-mtk (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Changed in: linux-mtk (Ubuntu Jammy)
     Assignee: (unassigned) => Jian Hui Lee (jianhuilee)

** Changed in: linux-mtk (Ubuntu Jammy)
   Importance: Undecided => Critical

** Changed in: linux-mtk (Ubuntu Jammy)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/2082868

Title:
   [g1200] regulators not enabled after sru d2024.08.12

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