Handle UNSELECT_DRIVE_HIGH and SN32F2XX_PWM_OUTPUT_ACTIVE_HIGH

[iglooom]

Description

I've tried to update qmk firmware on my FL980 keyboard, and the latest sn32_develop is now broken since I added this keyboard a couple of years ago.
RGB works fine, but the keys do not.
I was able to pinpoint this commit .
This keyboard has odd schematics and works like this:

• Disable PWM
• Drive Cols High
• Scan matrix
• Drive Cols Low
• Enable PWM
• Enable RGB by driving Cols High as RGB_OUTPUT_ACTIVE_HIGH

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[dexter93]

That particular bit was removed because it was introducing RGB artifacts in certain configs. The board you're working with is unusual - looks like the proper way to tackle it is flipping SN32_PWM_DIRECTION. Could you try that?