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authorMulin Chao <mlchao@nuvoton.com>2022-07-19 01:35:01 -0700
committerChromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com>2022-07-26 16:49:11 +0000
commite406aadb60c3c7148242eee6a7fd4dc4569443e0 (patch)
treefe2ed4edc3cbccc20722f6242b53523b2fb8ceb8 /docs/zephyr
parent0ad9fd4e835cb3c6d18b76f10097b45e2fec5bf2 (diff)
downloadchrome-ec-e406aadb60c3c7148242eee6a7fd4dc4569443e0.tar.gz
zephyr: npcx_evb: add GPIO_VOLTAGE_1P8 flag support
Add GPIO_VOLTAGE_1P8 flag support at the related board DT file and remove unused `def-lvol-io-list` node. BRANCH=none BUG=b:239636081 TEST=passed 'zmake build npcx7/npcx9 --clobber' Signed-off-by: Mulin Chao <mlchao@nuvoton.com> Cq-Depend: chromium:3782768, chromium:3782769, chromium:3782770 Change-Id: I594a7a8bf942bd79ba830cdb277e133a1dfec191 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3771325 Reviewed-by: Jack Rosenthal <jrosenth@chromium.org> Reviewed-by: Keith Short <keithshort@chromium.org> Reviewed-by: Fabio Baltieri <fabiobaltieri@google.com> Commit-Queue: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'docs/zephyr')
-rw-r--r--docs/zephyr/zephyr_gpio.md20
1 files changed, 10 insertions, 10 deletions
diff --git a/docs/zephyr/zephyr_gpio.md b/docs/zephyr/zephyr_gpio.md
index 5e70562ab9..8dbf1ea5c8 100644
--- a/docs/zephyr/zephyr_gpio.md
+++ b/docs/zephyr/zephyr_gpio.md
@@ -241,18 +241,18 @@ For example on the Volteer reference board:
Low voltage pins configuration depends on the specific chip family.
-For Nuvoton, this is done using a [nuvoton,npcx-lvolctrl-def] devicetree node,
-with a `lvol-io-pads` property listing all the pins that have to be configured
-for low-voltage operation. For example:
+For Nuvoton, this is done using the `GPIO_VOLTAGE_1P8` flag in the `named-gpios`
+child node. For example
```
-def-lvol-io-list {
- compatible = "nuvoton,npcx-lvolctrl-def";
- lvol-io-pads = <
- &lvol_iob3 /* EC_I2C_SENSOR_SCL */
- &lvol_iob2 /* EC_I2C_SENSOR_SDA */
- >;
-};
+named-gpios {
+ compatible = "named-gpios";
+ ...
+ ec-i2c-sensor-scl {
+ gpios = <&gpiob 5 (GPIO_INPUT | GPIO_VOLTAGE_1P8)>;
+ };
+ ...
+}
```
For ITE, this is done using the `GPIO_VOLTAGE_1P8` flag in the `named-gpios`