WIP: iio: Add Qualcomm Sensor Manager driver

Add core driver for Qualcomm Sensor Manager service, which is provided
by SSC or ADSP.

Author: Tooniis

drivers/iio/common/Kconfig

@@ -8,5 +8,6 @@ source "drivers/iio/common/hid-sensors/Kconfig"
 source "drivers/iio/common/inv_sensors/Kconfig"
 source "drivers/iio/common/ms_sensors/Kconfig"
 source "drivers/iio/common/scmi_sensors/Kconfig"
+source "drivers/iio/common/qcom_smgr/Kconfig"
 source "drivers/iio/common/ssp_sensors/Kconfig"
 source "drivers/iio/common/st_sensors/Kconfig"

drivers/iio/common/Makefile

@@ -13,5 +13,6 @@ obj-y += hid-sensors/
 obj-y += inv_sensors/
 obj-y += ms_sensors/
 obj-y += scmi_sensors/
+obj-y += qcom_smgr/
 obj-y += ssp_sensors/
 obj-y += st_sensors/

drivers/iio/common/qcom_smgr/Kconfig

@@ -0,0 +1,17 @@
+#
+# Qualcomm SSC IIO
+#
+# When adding new entries keep the list in alphabetical order
+
+config IIO_QCOM_SMGR
+	tristate "Qualcomm SSC Sensor Manager"
+	depends on ARCH_QCOM
+	depends on QCOM_RPROC_COMMON
+	select QCOM_QMI_HELPERS
+	select IIO_BUFFER
+	help
+	  Say yes here to build core support for the Sensor Manager (SMGR)
+	  service provided by the Qualcomm Snapdragon Sensor Core (SSC).
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called smgr.

drivers/iio/common/qcom_smgr/Makefile

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for Qualcomm sensor manager driver
+#
+
+obj-y += qmi/
+
+obj-$(CONFIG_IIO_QCOM_SMGR)	+= smgr.o

drivers/iio/common/qcom_smgr/qmi/Makefile

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_IIO_QCOM_SMGR)	+= sns_smgr.o