From: Ikjoon Jang <ikjn@chromium.org>
To: devicetree@vger.kernel.org, Lee Jones <lee.jones@linaro.org>
Cc: Stephen Boyd <sboyd@chromium.org>,
linux-kernel@vger.kernel.org, linux-input@vger.kernel.org,
Benson Leung <bleung@chromium.org>,
Guenter Roeck <groeck@chromium.org>,
Jiri Kosina <jikos@kernel.org>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
Hsin-Yi Wang <hsinyi@chromium.org>,
Ikjoon Jang <ikjn@chromium.org>, Rob Herring <robh@kernel.org>,
Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v7 1/2] mfd: google,cros-ec: add DT bindings for a baseboard's switch device
Date: Fri, 14 May 2021 20:05:05 +0800 [thread overview]
Message-ID: <20210514120506.264838-1-ikjn@chromium.org> (raw)
This is for ChromeOS tablets which have a 'cros_cbas' switch device
in the "Whiskers" base board. This device can be instantiated only by
device tree on ARM platforms. ChromeOS EC doesn't provide a way to
probe the device.
Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---
Changes in v7:
- no changes from v6
Changes in v6:
- Remove a label for cbas node in a example
Changes in v5:
- Add missing blank lines and change the description property's position.
- Add a note to description: "this device cannot be detected at runtime."
Changes in v4:
- Define cros-cbase bindings inside google,cros-ec.yaml instead of
a separated binding document.
.../bindings/mfd/google,cros-ec.yaml | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
index 76bf16ee27ec..929c17552d8b 100644
--- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
+++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
@@ -114,6 +114,22 @@ properties:
- "#address-cells"
- "#size-cells"
+ cbas:
+ type: object
+
+ description:
+ This device is used to signal when a detachable base is attached
+ to a Chrome OS tablet. This device cannot be detected at runtime.
+
+ properties:
+ compatible:
+ const: google,cros-cbas
+
+ required:
+ - compatible
+
+ additionalProperties: false
+
patternProperties:
"^i2c-tunnel[0-9]*$":
type: object
@@ -180,6 +196,10 @@ examples:
interrupts = <99 0>;
interrupt-parent = <&gpio7>;
spi-max-frequency = <5000000>;
+
+ cbas {
+ compatible = "google,cros-cbas";
+ };
};
};
--
2.31.1.751.gd2f1c929bd-goog
next reply other threads:[~2021-05-14 12:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 12:05 Ikjoon Jang [this message]
2021-05-14 12:05 ` [PATCH v7 2/2] arm64: dts: mt8183: add cbas node under cros_ec Ikjoon Jang
2021-05-14 12:05 ` Ikjoon Jang
2021-05-14 12:05 ` Ikjoon Jang
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