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| author | Simon Glass <sjg@chromium.org> | 2021-03-22 12:46:58 +1300 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-03-24 03:30:41 +0000 |
| commit | 50b2c4deb60575a60f6f58b28d48a1ada595ee65 (patch) | |
| tree | 96750e22d99ec03739d6ca540ab0f974dfda2178 /zephyr | |
| parent | f15b0fcff7ab0df04279a3480e80bc67b54ebee5 (diff) | |
| download | chrome-ec-50b2c4deb60575a60f6f58b28d48a1ada595ee65.tar.gz | |
zephyr: Add a binding for named batteries
Each board has its own list of supported batteries, taken from a set
of possible ones. Create a binding for this so we can generate the
enum from the device tree.
We can add new battery types as needed. For now, just include the
battery for volteer.
Add a new header file to generate enum battery_type.
BUG=b:176121284
BRANCH=none
TEST=build zephry for volteer
Signed-off-by: Simon Glass <sjg@chromium.org>
Change-Id: I6452705250075423ed6b5c87fdf32eda3f31c32b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2777634
Diffstat (limited to 'zephyr')
| -rw-r--r-- | zephyr/dts/bindings/battery/named-batteries.yaml | 14 | ||||
| -rw-r--r-- | zephyr/shim/include/battery_enum.h | 25 |
2 files changed, 39 insertions, 0 deletions
diff --git a/zephyr/dts/bindings/battery/named-batteries.yaml b/zephyr/dts/bindings/battery/named-batteries.yaml new file mode 100644 index 0000000000..88dc0af960 --- /dev/null +++ b/zephyr/dts/bindings/battery/named-batteries.yaml @@ -0,0 +1,14 @@ +description: Named Batteries parent node + +compatible: "named-batteries" + +# TODO(b/183544739): Move this to use compatible strings + +child-binding: + description: Named batteries child node + properties: + enum-name: + type: string + required: true + enum: + - "lgc011" diff --git a/zephyr/shim/include/battery_enum.h b/zephyr/shim/include/battery_enum.h new file mode 100644 index 0000000000..36692e68e5 --- /dev/null +++ b/zephyr/shim/include/battery_enum.h @@ -0,0 +1,25 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef __CROS_EC_CONFIG_CHIP_H +#error "This file must only be included from config_chip.h and it should be" \ + "included in all zephyr builds automatically" +#endif + +/* TODO(b/183544739): Move this to use compatible strings */ + +#define BATTERY_ENUM(val) DT_CAT(BATTERY_, val) +#define BATTERY_TYPE(id) BATTERY_ENUM(DT_ENUM_UPPER_TOKEN(id, enum_name)) +#define BATTERY_TYPE_WITH_COMMA(id) BATTERY_TYPE(id), + +/* This produces a list of BATTERY_<ENUM_NAME> identifiers */ +enum battery_type { +#if DT_NODE_EXISTS(DT_PATH(named_batteries)) + DT_FOREACH_CHILD(DT_PATH(named_batteries), BATTERY_TYPE_WITH_COMMA) +#endif + + BATTERY_TYPE_COUNT, +}; +#undef BATTERY_TYPE_WITH_COMMA |