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authorAndrew McRae <amcrae@google.com>2022-04-08 10:22:45 +1000
committerChromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com>2022-04-08 04:42:25 +0000
commitab34b0eca14d97c6dd0d7b95ffa698c1189a8336 (patch)
tree0166fa8fdad645f227431b57fdbbd435a1fbb374
parent4ad9c72f5053621de80431a5c2228c82a7e13030 (diff)
downloadchrome-ec-ab34b0eca14d97c6dd0d7b95ffa698c1189a8336.tar.gz
nissa: Set I2C5_1 pins to be low voltage.
Set the sub-board type C I2C bus to be low voltage. This is done for all boards, since the pin is 3.3V tolerant. BUG=b:227695901 TEST=zmake build nivviks BRANCH=none Signed-off-by: Andrew McRae <amcrae@google.com> Change-Id: I8475a4762c4da8d675a6dfc9b44baaeea6d39e53 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3577312 Reviewed-by: Peter Marheine <pmarheine@chromium.org>
-rw-r--r--zephyr/projects/nissa/nivviks_overlay.dts12
1 files changed, 12 insertions, 0 deletions
diff --git a/zephyr/projects/nissa/nivviks_overlay.dts b/zephyr/projects/nissa/nivviks_overlay.dts
index 194547a8fb..ab34f1c985 100644
--- a/zephyr/projects/nissa/nivviks_overlay.dts
+++ b/zephyr/projects/nissa/nivviks_overlay.dts
@@ -217,6 +217,18 @@
enable_gpio = <&gpio_fan_enable>;
};
};
+
+ /*
+ * Set I2C pins for type C sub-board to be
+ * low voltage (I2C5_1).
+ * We do this for all boards, since the pins are
+ * 3.3V tolerant, and the only 2 types of sub-boards
+ * used on nivviks both have type-C ports on them.
+ */
+ def-lvol-io-list {
+ compatible = "nuvoton,npcx-lvolctrl-def";
+ lvol-io-pads = <&lvol_iof5 &lvol_iof4>;
+ };
};
&thermistor_3V3_51K1_47K_4050B {