feat(gpio): Add 595 shift register driver.

* Use SPI for sending serial data.
* Supports 1-4 shift registers chained together by
  setting `ngios` property appropriately.
This commit is contained in:
Peter Johanson
2022-06-03 03:25:59 +00:00
committed by Pete Johanson
parent 8e67524e62
commit 6a86cd0547
5 changed files with 274 additions and 1 deletions

View File

@@ -1 +1,2 @@
rsource "Kconfig.mcp23017"
rsource "Kconfig.595"