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Diffstat (limited to 'board/treeya/board.h')
| -rw-r--r-- | board/treeya/board.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/board/treeya/board.h b/board/treeya/board.h index 4bda4cb64c..d3809b3fda 100644 --- a/board/treeya/board.h +++ b/board/treeya/board.h @@ -12,6 +12,20 @@ #include "baseboard.h" +/* b/203442963 + * It's workaround to reduce keyboard's "Silver Migration". + * From keyboard vendor's feedback, there are two factors to cause + * "Silver Migration". + * 1. A voltage potential between trace. + * 2. The presence of an electrolyte , such as moisture. + * The reason cause voltage potential between KSIxx trace is EC enter ec + * hibernate PSL and turn EC's VCC1 power off. Besides KSI2, the other + * KSIxx will be turn off. KSI2 is powered by H1. + * To avoid voltage potential is keep KSIxx on. That means not to enter + * ec hibernate PSL. + */ +#undef CONFIG_HIBERNATE_PSL + /* * By default, enable all console messages excepted HC, ACPI and event: * The sensor stack is generating a lot of activity. |