From 188b6ff7d7b4e4139c16df188728f47ae81a4e00 Mon Sep 17 00:00:00 2001 From: Keith Short Date: Wed, 13 Nov 2019 13:20:49 -0800 Subject: icelake/tigerlake: add option to enable PP3300 before PP5000 On Volteer, to avoid leakage from PP3300_A rail to PP5000 rail, turn on the PP3300 rail before PP5000. BUG=none BRANCH=none TEST=make buildall -j TEST=verify Volteer transitions to S0 Change-Id: Ic86f97dbdde6d6c904fe7efc8b0edc1ead727cf6 Signed-off-by: Keith Short Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1918603 Reviewed-by: Abe Levkoy --- include/config.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/config.h b/include/config.h index e92a20f411..921eb0f4c9 100644 --- a/include/config.h +++ b/include/config.h @@ -1105,6 +1105,13 @@ /* Enable chipset reset hook, requires a deferrable function */ #undef CONFIG_CHIPSET_RESET_HOOK +/* + * Enable turning on PP3300_A rail before PP5000_A rail on the Ice Lake + * and Tiger Lake chipsets. Enable this option if there is leakage from PP5000_A + * resources into PP3300_A resources. + */ +#undef CONFIG_CHIPSET_PP3300_RAIL_FIRST + /* * Enable if chipset requires delay between power signals going high * and deasserting RSMRST to PCH. -- cgit v1.2.1