linux-stable.git/drivers/iio, branch v3.12.56

iio: dac: mcp4725: set iio name property in sysfs

2016-02-24T09:23:33+00:00

commit 97a249e98a72d6b79fb7350a8dd56b147e9d5bdb upstream.

Without this change, the name entity for mcp4725 is missing in
/sys/bus/iio/devices/iio\:device*/name

With this change, name is reported correctly

Signed-off-by: Yong Li 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio: adis_buffer: Fix out-of-bounds memory access

2016-02-24T09:23:33+00:00

commit d590faf9e8f8509a0a0aa79c38e87fcc6b913248 upstream.

The SPI tx and rx buffers are both supposed to be scan_bytes amount of
bytes large and a common allocation is used to allocate both buffers. This
puts the beginning of the tx buffer scan_bytes bytes after the rx buffer.
The initialization of the tx buffer pointer is done adding scan_bytes to
the beginning of the rx buffer, but since the rx buffer is of type __be16
this will actually add two times as much and the tx buffer ends up pointing
after the allocated buffer.

Fix this by using scan_count, which is scan_bytes / 2, instead of
scan_bytes when initializing the tx buffer pointer.

Fixes: aacff892cbd5 ("staging:iio:adis: Preallocate transfer message")
Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio: fix some warning messages

2016-02-24T09:23:32+00:00

commit 231bfe53c57e89857753c940192acba933cba56c upstream.

WARN_ON() only takes a condition argument.  I have changed these to
WARN() instead.

Signed-off-by: Dan Carpenter 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio: ad5064: Fix ad5629/ad5669 shift

2016-02-24T09:23:32+00:00

commit 5dcbe97bedd6ba4b0f574a96cc2e293d26f3d857 upstream.

The ad5629/ad5669 are the I2C variant of the ad5628/ad5668, which has a SPI
interface. They are mostly identical with the exception that the shift
factor is different. Currently the driver does not take care of this
difference which leads to incorrect DAC output values.

Fix this by introducing a custom channel spec for the ad5629/ad5669 with
the correct shift factor.

Fixes: commit 6a17a0768f77 ("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success

2016-02-24T09:23:31+00:00

commit 03fe472ef33b7f31fbd11d300dbb3fdab9c00fd4 upstream.

i2c_master_send() returns the number of bytes transferred on success while
the ad5064 driver expects that the write() callback returns 0 on success.
Fix that by translating any non negative return value of i2c_master_send()
to 0.

Fixes: commit 6a17a0768f77 ("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Michael Hennerich 
Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio:ad7793: Fix ad7785 product ID

2016-02-24T09:23:30+00:00

commit 785171fd6cd7dcd7ada5a733b6a2d44ec566c3a0 upstream.

While the datasheet for the AD7785 lists 0xXB as the product ID the actual
product ID is 0xX3.

Fix the product ID otherwise the driver will reject the device due to non
matching IDs.

Fixes: e786cc26dcc5 ("staging:iio:ad7793: Implement stricter id checking")
Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio: adis16480: Fix scale factors

2015-09-30T08:59:51+00:00

commit 7abad1063deb0f77d275c61f58863ec319c58c5c upstream.

The different devices support by the adis16480 driver have slightly
different scales for the gyroscope and accelerometer channels.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio: adc: at91_adc: allow to use full range of startup time

2015-08-04T14:52:06+00:00

commit 2ab5f39bc7825808e0fa1e7e5f0b23e174563467 upstream.

The DT-Property "atmel,adc-startup-time" is stored in an u8 for a microsecond
value. When trying to increase the value of STARTUP in Register AT91_ADC_MR
some higher values can't be reached.

Change the type in function parameter and private structure field from u8 to
u32.

Signed-off-by: Jan Leupold 
[nicolas.ferre@atmel.com: change commit message, increase u16 to u32 for startup time]
Signed-off-by: Nicolas Ferre 
Acked-by: Alexandre Belloni 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby  [-js: only change at91_adc_state for 3.12]

iio: DAC: ad5624r_spi: fix bit shift of output data value

2015-08-04T14:52:05+00:00

commit adfa969850ae93beca57f7527f0e4dc10cbe1309 upstream.

The value sent on the SPI bus is shifted by an erroneous number of bits.
The shift value was already computed in the iio_chan_spec structure and
hence subtracting this argument to 16 yields an erroneous data position
in the SPI stream.

Signed-off-by: JM Friedt 
Acked-by: Lars-Peter Clausen 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Jiri Slaby

iio: accel: hid-sensor-accel-3d: Fix memory leak in probe()

2015-07-30T12:11:00+00:00

commit b136faff9bc2f4adea050ed2119c01199f9a86a5 upstream.

'channels' is allocated via kmemdup and it is never freed in the
subsequent error paths.

Use 'indio_dev->channels' directly instead, so that we avoid such
memory leak problem.

Signed-off-by: Fabio Estevam 
Reviewed-by: Srinivas Pandruvada 
Signed-off-by: Jonathan Cameron 
Cc: Oliver Neukum 
Signed-off-by: Jiri Slaby