This is a note to let you know that I've just added the patch titled
iio: st_pressure: st_accel: Initialise sensor platform data properly
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-st_pressure-st_accel-initialise-sensor-platform-data-properly.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Mar 22 14:57:32 CET 2018
From: Shrirang Bagul <shrirang.bagul@xxxxxxxxxxxxx>
Date: Wed, 19 Apr 2017 22:05:00 +0800
Subject: iio: st_pressure: st_accel: Initialise sensor platform data properly
From: Shrirang Bagul <shrirang.bagul@xxxxxxxxxxxxx>
[ Upstream commit 7383d44b84c94aaca4bf695a6bd8a69f2295ef1a ]
This patch fixes the sensor platform data initialisation for st_pressure
and st_accel device drivers. Without this patch, the driver fails to
register the sensors when the user removes and re-loads the driver.
1. Unload the kernel modules for st_pressure
$ sudo rmmod st_pressure_i2c
$ sudo rmmod st_pressure
2. Re-load the driver
$ sudo insmod st_pressure
$ sudo insmod st_pressure_i2c
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/accel/st_accel_core.c | 7 ++++---
drivers/iio/pressure/st_pressure_core.c | 8 ++++----
2 files changed, 8 insertions(+), 7 deletions(-)
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -628,6 +628,8 @@ static const struct iio_trigger_ops st_a
int st_accel_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *adata = iio_priv(indio_dev);
+ struct st_sensors_platform_data *pdata =
+ (struct st_sensors_platform_data *)adata->dev->platform_data;
int irq = adata->get_irq_data_ready(indio_dev);
int err;
@@ -652,9 +654,8 @@ int st_accel_common_probe(struct iio_dev
&adata->sensor_settings->fs.fs_avl[0];
adata->odr = adata->sensor_settings->odr.odr_avl[0].hz;
- if (!adata->dev->platform_data)
- adata->dev->platform_data =
- (struct st_sensors_platform_data *)&default_accel_pdata;
+ if (!pdata)
+ pdata = (struct st_sensors_platform_data *)&default_accel_pdata;
err = st_sensors_init_sensor(indio_dev, adata->dev->platform_data);
if (err < 0)
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -436,6 +436,8 @@ static const struct iio_trigger_ops st_p
int st_press_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *press_data = iio_priv(indio_dev);
+ struct st_sensors_platform_data *pdata =
+ (struct st_sensors_platform_data *)press_data->dev->platform_data;
int irq = press_data->get_irq_data_ready(indio_dev);
int err;
@@ -464,10 +466,8 @@ int st_press_common_probe(struct iio_dev
press_data->odr = press_data->sensor_settings->odr.odr_avl[0].hz;
/* Some devices don't support a data ready pin. */
- if (!press_data->dev->platform_data &&
- press_data->sensor_settings->drdy_irq.addr)
- press_data->dev->platform_data =
- (struct st_sensors_platform_data *)&default_press_pdata;
+ if (!pdata && press_data->sensor_settings->drdy_irq.addr)
+ pdata = (struct st_sensors_platform_data *)&default_press_pdata;
err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data);
if (err < 0)
Patches currently in stable-queue which might be from shrirang.bagul@xxxxxxxxxxxxx are
queue-4.4/iio-st_pressure-st_accel-initialise-sensor-platform-data-properly.patch