Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
From:   Andrea Merello <andrea.merello@gmail.com>
To:     jic23@kernel.org, mchehab+huawei@kernel.org,
        linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org
Cc:     lars@metafoo.de, robh+dt@kernel.org, andy.shevchenko@gmail.com,
        matt.ranostay@konsulko.com, ardeleanalex@gmail.com,
        jacopo@jmondi.org, Andrea Merello <andrea.merello@iit.it>
Subject: [v4 01/14] iio: add modifiers for linear acceleration
Date:   Fri, 15 Apr 2022 14:59:52 +0200
Message-Id: <20220415130005.85879-2-andrea.merello@gmail.com>
In-Reply-To: <20220415130005.85879-1-andrea.merello@gmail.com>
References: <20220415130005.85879-1-andrea.merello@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Andrea Merello <andrea.merello@iit.it>

This patch is preparatory for adding the Bosh BNO055 IMU driver.
The said IMU can report raw accelerations (among x, y and z axis)
as well as the so called "linear accelerations" (again, among x,
y and z axis) which is basically the acceleration after subtracting
gravity.

This patch adds IIO_MOD_LINEAR_X, IIO_MOD_LINEAR_Y and IIO_MOD_LINEAR_Z
modifiers to te IIO core.

Signed-off-by: Andrea Merello <andrea.merello@iit.it>
---
 drivers/iio/industrialio-core.c | 3 +++
 include/uapi/linux/iio/types.h  | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 2f48e9a97274..d087b2607cc9 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -134,6 +134,9 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_ETHANOL] = "ethanol",
 	[IIO_MOD_H2] = "h2",
 	[IIO_MOD_O2] = "o2",
+	[IIO_MOD_LINEAR_X] = "linear_x",
+	[IIO_MOD_LINEAR_Y] = "linear_y",
+	[IIO_MOD_LINEAR_Z] = "linear_z",
 };
 
 /* relies on pairs of these shared then separate */
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index 472cead10d8d..0993f6b697fc 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -95,6 +95,9 @@ enum iio_modifier {
 	IIO_MOD_ETHANOL,
 	IIO_MOD_H2,
 	IIO_MOD_O2,
+	IIO_MOD_LINEAR_X,
+	IIO_MOD_LINEAR_Y,
+	IIO_MOD_LINEAR_Z,
 };
 
 enum iio_event_type {
@@ -115,4 +118,3 @@ enum iio_event_direction {
 };
 
 #endif /* _UAPI_IIO_TYPES_H_ */
-
-- 
2.17.1