zephyr: DT: support sensor driver data

This has basic support to create instances of sensor-specific
driver data using the information from device tree.

BUG=b:173507858
BRANCH=none
TEST=make buildall -j8
build volteer on zephyr

Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.corp-partner.google.com>
Change-Id: I196d7595e8bd880e2314290660f08274ad99e172
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2778815
Reviewed-by: Simon Glass <sjg@chromium.org>

4 files changed, 147 insertions, 0 deletions

diff --git a/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-als-channel-scale.yaml b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-als-channel-scale.yaml
new file mode 100644
index 0000000000..753edc7ea8
--- /dev/null
+++ b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-als-channel-scale.yaml
@@ -0,0 +1,29 @@
+# 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.
+
+description: |
+  Bindings for als_channel_scale_t in accelgyro.h.
+  Each channel has scaling factor for normalization & cover
+
+compatible: cros-ec,accelgyro-als-channel-scale
+
+properties:
+  k-channel-scale:
+    type: int
+    required: true
+    description: Channel scale factor
+  cover-scale:
+    type: int
+    required: true
+    description: Cover compensation scale factor
+
+#
+# examples:
+#
+# als-channel-scale {
+#        compatible = "cros-ec,accelgyro-als-channel-scale";
+#        k-channel-scale = <1>;
+#        cover-scale = <1>;
+# };
+#
diff --git a/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-als-drv-data.yaml b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-als-drv-data.yaml
new file mode 100644
index 0000000000..7d64689cf2
--- /dev/null
+++ b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-als-drv-data.yaml
@@ -0,0 +1,44 @@
+# 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.
+
+description: ALS driver data
+
+compatible: "cros-ec,accelgyro-als-drv-data"
+
+child-binding:
+  description: ALS calibration data
+  properties:
+    scale:
+      type: int
+      required: true
+      description: |
+        Scale, uscale, and offset are used to correct the raw 16 bit ALS data
+        and then to convert it to 32 bit using the following equations
+        raw_value += offset;\n
+        adjusted_value = raw_value * scale + raw_value * uscale / 10000;
+    uscale:
+      type: int
+      required: true
+      description: uscale
+    offset:
+      type: int
+      required: true
+      description: offset
+
+#
+# examples:
+# als-drv-data {
+#        compatible = "cros-ec,accelgyro-als-drv-data";
+#        als-cal {
+#                scale = <1>;
+#                uscale = <0>;
+#                offset = <0>;
+#                als-channel-scale {
+#                compatible = "cros-ec,accelgyro-als-channel-scale";
+#                        k-channel-scale = <1>;
+#                        cover-scale = <1>;
+#                };
+#        };
+# };
+#
diff --git a/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-rgb-calibration.yaml b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-rgb-calibration.yaml
new file mode 100644
index 0000000000..4204a63cff
--- /dev/null
+++ b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,accelgyro-rgb-calibration.yaml
@@ -0,0 +1,63 @@
+# 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.
+
+description: bindings for rgb_calibration_t in accelgyro.h
+
+compatible: "cros-ec,accelgyro-rgb-calibration"
+
+properties:
+  irt:
+    type: int
+    required: true
+    description: incandecent scaling factor
+
+child-binding:
+  description: RGB ALS Calibration Data
+  properties:
+    offset:
+      type: int
+      required: true
+      description: Any offset to add to raw channel data
+    coeff:
+      type: array
+      required: true
+      description: Clear, R, G, and B coefficients for this channel
+
+#
+# examples:
+#
+# rgb_calibration {
+#        compatible = "cros-ec,accelgyro-rgb-calibration";
+#
+#        irt = <1>;
+#
+#        rgb-cal-x {
+#                offset = <0>;
+#                coeff = <0 0 0 0>;
+#                als-channel-scale {
+#                compatible = "cros-ec,accelgyro-als-channel-scale";
+#                        k-channel-scale = <1>;
+#                        cover-scale = <1>;
+#                };
+#        };
+#        rgb-cal-y {
+#                offset = <0>;
+#                coeff = <0 0 0 0>;
+#                als-channel-scale {
+#                compatible = "cros-ec,accelgyro-als-channel-scale";
+#                        k-channel-scale = <1>;
+#                        cover-scale = <1>;
+#                };
+#        };
+#        rgb-cal-z {
+#                offset = <0>;
+#                coeff = <0 0 0 0>;
+#                als-channel-scale {
+#                compatible = "cros-ec,accelgyro-als-channel-scale";
+#                        k-channel-scale = <1>;
+#                        cover-scale = <1>;
+#                };
+#        };
+# };
+#
diff --git a/zephyr/dts/bindings/motionsense/drvdata/drvdata-base.yaml b/zephyr/dts/bindings/motionsense/drvdata/drvdata-base.yaml
new file mode 100644
index 0000000000..dc32d69d21
--- /dev/null
+++ b/zephyr/dts/bindings/motionsense/drvdata/drvdata-base.yaml
@@ -0,0 +1,11 @@
+# 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.
+
+# common fields for driver data
+
+include: base.yaml
+
+properties:
+  status:
+    required: true