zephyr: DT: support BMA255

This change is to support BMA255 via DT.
The change includes, using DT,
- creating BMA255 driver specific data
- creating motion sensor entry for BMA255

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

Change-Id: Ie67dc1fb7a25872d48c805b5ba4385dae399f240
Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2778820
Reviewed-by: Simon Glass <sjg@chromium.org>

4 files changed, 88 insertions, 0 deletions

diff --git a/zephyr/dts/bindings/motionsense/driver/cros-ec,bma255.yaml b/zephyr/dts/bindings/motionsense/driver/cros-ec,bma255.yaml
new file mode 100644
index 0000000000..a3d5575fb3
--- /dev/null
+++ b/zephyr/dts/bindings/motionsense/driver/cros-ec,bma255.yaml
@@ -0,0 +1,21 @@
+# 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: motionsense sensor node for BMA255
+
+compatible: "cros-ec,bma255"
+
+# every motionsense sensor node should include motionsense-sensor-base.yaml
+include: motionsense-sensor-base.yaml
+
+properties:
+  i2c-spi-addr-flags:
+    type: string
+    required: true
+    description: i2c address or SPI slave logic GPIO
+    enum:
+      - "BMA2x2_I2C_ADDR1_FLAGS"
+      - "BMA2x2_I2C_ADDR2_FLAGS"
+      - "BMA2x2_I2C_ADDR3_FLAGS"
+      - "BMA2x2_I2C_ADDR4_FLAGS"
diff --git a/zephyr/dts/bindings/motionsense/drvdata/cros-ec,drvdata-bma255.yaml b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,drvdata-bma255.yaml
new file mode 100644
index 0000000000..4cabd620da
--- /dev/null
+++ b/zephyr/dts/bindings/motionsense/drvdata/cros-ec,drvdata-bma255.yaml
@@ -0,0 +1,18 @@
+# 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: BMA255 driver data node
+
+compatible: "cros-ec,drvdata-bma255"
+
+include: drvdata-base.yaml
+
+#
+# examples:
+#
+# bma255_data: bma255-drv-data {
+#       compatible = "cros-ec,drvdata-bma255";
+#       status = "okay";
+# };
+#
diff --git a/zephyr/shim/src/motionsense_driver/bma255-drvinfo.inc b/zephyr/shim/src/motionsense_driver/bma255-drvinfo.inc
new file mode 100644
index 0000000000..7db46811ad
--- /dev/null
+++ b/zephyr/shim/src/motionsense_driver/bma255-drvinfo.inc
@@ -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.
+ */
+
+#include "driver/accel_bma2x2_public.h"
+
+/*
+ * CREATE_SENSOR_DATA which is defined in motionsense_sensors.c is
+ * the helper to create sensor driver specific data.
+ *
+ * CREATE_SENSOR_DATA gets two arguments. One is the compatible
+ * property value specified in device tree and the other one is the macro
+ * that actually creates sensor driver specific data. The macro gets
+ * node id and the name to be used for the sensor driver data.
+ */
+
+/*
+ * Create driver data for each BMI260 drvinfo instance in device tree.
+ * (compatible = "cros-ec,drvdata-bma255")
+ */
+/* Declare BMA255 driver data */
+#define CREATE_SENSOR_DATA_BMA255(id, drvdata_name)	\
+	static struct accelgyro_saved_data_t drvdata_name;
+
+CREATE_SENSOR_DATA(cros_ec_drvdata_bma255, CREATE_SENSOR_DATA_BMA255)
+
+/*
+ * CREATE_MOTION_SENSOR which is defined in motionsense_sensors.c is
+ * the macro to create an entry in motion_sensors array.
+ * The macro gets value of compatible property of
+ * the sensor in device tree and sensor specific values like chip ID,
+ * type of sensor, name of driver, default min/max frequency.
+ * Then using the values, it creates the corresponding motion_sense_t entry
+ * in motion_sensors array.
+ */
+
+/*
+ * Create a motion_sensor_t entry for each BMA255
+ * instance(compatible = "cros-ec,bma255") in device tree.
+ */
+CREATE_MOTION_SENSOR(cros_ec_bma255, MOTIONSENSE_CHIP_BMA255,	\
+	MOTIONSENSE_TYPE_ACCEL, bma2x2_accel_drv,		\
+	BMA255_ACCEL_MIN_FREQ, BMA255_ACCEL_MAX_FREQ)
diff --git a/zephyr/shim/src/motionsense_driver/sensor_drv_list.inc b/zephyr/shim/src/motionsense_driver/sensor_drv_list.inc
index f1e918bc1b..968d64b5dc 100644
--- a/zephyr/shim/src/motionsense_driver/sensor_drv_list.inc
+++ b/zephyr/shim/src/motionsense_driver/sensor_drv_list.inc
@@ -17,3 +17,8 @@
  * #include "bma255-drvinfo.inc"
  * #endif
  */
+
+/* supported sensor driver list */
+#ifdef CONFIG_ACCEL_BMA255
+#include "bma255-drvinfo.inc"
+#endif