From: "H. Nikolaus Schaller" <hns@goldelico.com>
To: Linus Walleij <linus.walleij@linaro.org>,
Jonathan Cameron <jic23@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"H. Nikolaus Schaller" <hns@goldelico.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Charles Keepax <ckeepax@opensource.cirrus.com>,
Song Qiang <songqiang1304521@gmail.com>,
Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>,
Martin Kelly <mkelly@xevo.com>,
Jonathan Marek <jonathan@marek.ca>,
Brian Masney <masneyb@onstation.org>,
Stephan Gerhold <stephan@gerhold.net>
Cc: letux-kernel@openphoenux.org, Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 01/10] iio: Allow to read mount matrix from ACPI
Date: Thu, 21 Feb 2019 18:02:46 +0100 [thread overview]
Message-ID: <9a71e39afb40900d79b833cb413d9d018e1d7d4b.1550768574.git.hns@goldelico.com> (raw)
In-Reply-To: <cover.1550768574.git.hns@goldelico.com>
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Currently mount matrix is allowed in Device Tree, though there is
no technical issue to extend it to support ACPI.
Convert the function to use device_property_read_string_array() and
thus allow to read mount matrix from ACPI if available.
Example of use in _DSD method:
Name (_DSD, Package ()
{
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package ()
{
Package () { "mount-matrix", Package() {
"1", "0", "0",
"0", "0.866", "0.5",
"0", "-0.5", "0.866",
} },
}
})
At the same time drop the "of" prefix from its name and
convert current users.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/iio/accel/kxsd9.c | 4 +-
drivers/iio/gyro/mpu3050-core.c | 3 +-
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 4 +-
drivers/iio/industrialio-core.c | 46 +++++++++-------------
drivers/iio/magnetometer/ak8974.c | 5 +--
drivers/iio/magnetometer/ak8975.c | 5 +--
include/linux/iio/iio.h | 4 +-
7 files changed, 28 insertions(+), 43 deletions(-)
diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
index 0c0df4fce420..70c60db62247 100644
--- a/drivers/iio/accel/kxsd9.c
+++ b/drivers/iio/accel/kxsd9.c
@@ -420,9 +420,7 @@ int kxsd9_common_probe(struct device *dev,
indio_dev->available_scan_masks = kxsd9_scan_masks;
/* Read the mounting matrix, if present */
- ret = of_iio_read_mount_matrix(dev,
- "mount-matrix",
- &st->orientation);
+ ret = iio_read_mount_matrix(dev, "mount-matrix", &st->orientation);
if (ret)
return ret;
diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index 77fac81a3adc..8200e48f561b 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -1149,8 +1149,7 @@ int mpu3050_common_probe(struct device *dev,
mpu3050->divisor = 99;
/* Read the mounting matrix, if present */
- ret = of_iio_read_mount_matrix(dev, "mount-matrix",
- &mpu3050->orientation);
+ ret = iio_read_mount_matrix(dev, "mount-matrix", &mpu3050->orientation);
if (ret)
return ret;
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 1e428c196a82..533d1f8321ac 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -990,8 +990,8 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
pdata = dev_get_platdata(dev);
if (!pdata) {
- result = of_iio_read_mount_matrix(dev, "mount-matrix",
- &st->orientation);
+ result = iio_read_mount_matrix(dev, "mount-matrix",
+ &st->orientation);
if (result) {
dev_err(dev, "Failed to retrieve mounting matrix %d\n",
result);
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 4f5cd9f60870..0a40f1df49c7 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -19,6 +19,7 @@
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/poll.h>
+#include <linux/property.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/cdev.h>
@@ -525,8 +526,8 @@ ssize_t iio_show_mount_matrix(struct iio_dev *indio_dev, uintptr_t priv,
EXPORT_SYMBOL_GPL(iio_show_mount_matrix);
/**
- * of_iio_read_mount_matrix() - retrieve iio device mounting matrix from
- * device-tree "mount-matrix" property
+ * iio_read_mount_matrix() - retrieve iio device mounting matrix from
+ * device "mount-matrix" property
* @dev: device the mounting matrix property is assigned to
* @propname: device specific mounting matrix property name
* @matrix: where to store retrieved matrix
@@ -536,40 +537,29 @@ EXPORT_SYMBOL_GPL(iio_show_mount_matrix);
*
* Return: 0 if success, or a negative error code on failure.
*/
-#ifdef CONFIG_OF
-int of_iio_read_mount_matrix(const struct device *dev,
- const char *propname,
- struct iio_mount_matrix *matrix)
+int iio_read_mount_matrix(struct device *dev, const char *propname,
+ struct iio_mount_matrix *matrix)
{
- if (dev->of_node) {
- int err = of_property_read_string_array(dev->of_node,
- propname, matrix->rotation,
- ARRAY_SIZE(iio_mount_idmatrix.rotation));
+ size_t len = ARRAY_SIZE(iio_mount_idmatrix.rotation);
+ int err;
- if (err == ARRAY_SIZE(iio_mount_idmatrix.rotation))
- return 0;
+ err = device_property_read_string_array(dev, propname,
+ matrix->rotation, len);
+ if (err == len)
+ return 0;
- if (err >= 0)
- /* Invalid number of matrix entries. */
- return -EINVAL;
+ if (err >= 0)
+ /* Invalid number of matrix entries. */
+ return -EINVAL;
- if (err != -EINVAL)
- /* Invalid matrix declaration format. */
- return err;
- }
+ if (err != -EINVAL)
+ /* Invalid matrix declaration format. */
+ return err;
/* Matrix was not declared at all: fallback to identity. */
return iio_setup_mount_idmatrix(dev, matrix);
}
-#else
-int of_iio_read_mount_matrix(const struct device *dev,
- const char *propname,
- struct iio_mount_matrix *matrix)
-{
- return iio_setup_mount_idmatrix(dev, matrix);
-}
-#endif
-EXPORT_SYMBOL(of_iio_read_mount_matrix);
+EXPORT_SYMBOL(iio_read_mount_matrix);
static ssize_t __iio_format_value(char *buf, size_t len, unsigned int type,
int size, const int *vals)
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index 93be1f4c0f27..f4d0a6c0fde7 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/drivers/iio/magnetometer/ak8974.c
@@ -733,9 +733,8 @@ static int ak8974_probe(struct i2c_client *i2c,
ak8974->i2c = i2c;
mutex_init(&ak8974->lock);
- ret = of_iio_read_mount_matrix(&i2c->dev,
- "mount-matrix",
- &ak8974->orientation);
+ ret = iio_read_mount_matrix(&i2c->dev, "mount-matrix",
+ &ak8974->orientation);
if (ret)
return ret;
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index d430b80808ef..db7214ac514c 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -911,9 +911,8 @@ static int ak8975_probe(struct i2c_client *client,
data->eoc_irq = 0;
if (!pdata) {
- err = of_iio_read_mount_matrix(&client->dev,
- "mount-matrix",
- &data->orientation);
+ err = iio_read_mount_matrix(&client->dev, "mount-matrix",
+ &data->orientation);
if (err)
return err;
} else
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index a74cb177dc6f..bb10c1bee301 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -130,8 +130,8 @@ struct iio_mount_matrix {
ssize_t iio_show_mount_matrix(struct iio_dev *indio_dev, uintptr_t priv,
const struct iio_chan_spec *chan, char *buf);
-int of_iio_read_mount_matrix(const struct device *dev, const char *propname,
- struct iio_mount_matrix *matrix);
+int iio_read_mount_matrix(struct device *dev, const char *propname,
+ struct iio_mount_matrix *matrix);
typedef const struct iio_mount_matrix *
(iio_get_mount_matrix_t)(const struct iio_dev *indio_dev,
--
2.19.1
next prev parent reply other threads:[~2019-02-21 17:03 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 17:02 [PATCH v2 00/10] iio mount matrix - revitalize missing bindings documentation and provide code for bmc150, bmg160, bma180, itg3200, hmc584x H. Nikolaus Schaller
2019-02-21 17:02 ` H. Nikolaus Schaller [this message]
2019-03-03 14:59 ` [PATCH v2 01/10] iio: Allow to read mount matrix from ACPI Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 02/10] iio: document bindings for mounting matrices H. Nikolaus Schaller
2019-02-22 23:42 ` Rob Herring
2019-02-25 16:32 ` Jonathan Corbet
2019-02-25 18:24 ` Linus Walleij
2019-02-25 18:29 ` Jonathan Corbet
2019-02-25 19:38 ` Rob Herring
2019-03-03 15:19 ` Jonathan Cameron
2019-03-07 12:53 ` H. Nikolaus Schaller
2019-07-23 7:42 ` Linus Walleij
2019-07-23 9:46 ` H. Nikolaus Schaller
2019-07-28 7:50 ` Jonathan Cameron
2019-07-28 10:07 ` Linus Walleij
2019-07-23 15:39 ` Andy Shevchenko
2019-02-21 17:02 ` [PATCH v2 03/10] iio: accel: bmc150: add mount matrix support H. Nikolaus Schaller
2019-03-03 15:20 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 04/10] iio: accel: bma180: " H. Nikolaus Schaller
2019-03-03 15:20 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 05/10] iio: gyro: bmg160: " H. Nikolaus Schaller
2019-03-03 15:21 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 06/10] iio: gyro: itg3200: " H. Nikolaus Schaller
2019-03-03 15:22 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 07/10] iio: magnetometer: bmc150: " H. Nikolaus Schaller
2019-03-03 15:23 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 08/10] iio: magnetometer: hmc5843: " H. Nikolaus Schaller
2019-03-03 15:24 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 09/10] iio: mpu6050: improve code readability H. Nikolaus Schaller
2019-03-03 15:30 ` Jonathan Cameron
2019-02-21 17:02 ` [PATCH v2 10/10] iio: ak8975: " H. Nikolaus Schaller
2019-03-03 15:30 ` Jonathan Cameron
2019-02-22 14:48 ` [PATCH v2 00/10] iio mount matrix - revitalize missing bindings documentation and provide code for bmc150, bmg160, bma180, itg3200, hmc584x Andy Shevchenko
2019-03-03 15:32 ` Jonathan Cameron
2019-04-04 6:29 ` H. Nikolaus Schaller
2019-04-07 11:41 ` Jonathan Cameron
2019-02-22 16:24 ` Linus Walleij
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