clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed mis-use of mutex for gdm_table. gdm_table is refered to only
inside tty_install and port destrcut, and usb callbacks use internal
reference which was saved during urb submission
Signed-off-by: Won Kang <wonkang@gctsemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Removed the old style reference countings and termios.
Renamed variables to meaninful ones.
Signed-off-by: Won Kang <wonkang@gctsemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The TODO entry - drop global variables, use a proper olpc_dcon_priv
struct - is already finished. The driver has no global variables.
It uses the private structure 'dcon_priv'.
Signed-off-by: Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
New driver:
1) tmp006 IR thermopile driver. This is an unusual temperature sensor
and was taken in to IIO with the knowledge and agreement of a hwmon
maintainer.
It measures remote temperature using infrared emissions.
I guess taking this may mean we have to fight off submissions of
devices much more suited to hwmon but such is life and we end up
doing this from time to time already.
2) twl6030 adc driver.
Cleanups:
1) More devm_* cleanups following on from the introduction of
devm_iio_device_alloc. Mostly an heroic effort from
Sachin Kamat!
2) Introduce devm_iio_trigger_alloc etc to handle trigger
allocation and deallocation in a managed fashion. There
aren't as many instances of triggers as devices, but this
will allow futher reduction in error patch complexity in
some of our most complex drivers making it a very good thing.
3) Trivial removal of unused defines in adjd_s311
4) Drop some write_raw_get_fmt callbacks where they were only
returning the default value.
5) Change mxs-lradc realbits to 12. Whilst an 18bit register
is used on the device, in its current mode only 12 bits of
useful data are returned. For now the packing is unchanged
in the buffer and this change mainly effects the input support
in the driver.
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Merge tag 'iio-for-3.12b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Second round of new drivers, features and cleanups for IIO in the 3.12 cycle.
New driver:
1) tmp006 IR thermopile driver. This is an unusual temperature sensor
and was taken in to IIO with the knowledge and agreement of a hwmon
maintainer.
It measures remote temperature using infrared emissions.
I guess taking this may mean we have to fight off submissions of
devices much more suited to hwmon but such is life and we end up
doing this from time to time already.
2) twl6030 adc driver.
Cleanups:
1) More devm_* cleanups following on from the introduction of
devm_iio_device_alloc. Mostly an heroic effort from
Sachin Kamat!
2) Introduce devm_iio_trigger_alloc etc to handle trigger
allocation and deallocation in a managed fashion. There
aren't as many instances of triggers as devices, but this
will allow futher reduction in error patch complexity in
some of our most complex drivers making it a very good thing.
3) Trivial removal of unused defines in adjd_s311
4) Drop some write_raw_get_fmt callbacks where they were only
returning the default value.
5) Change mxs-lradc realbits to 12. Whilst an 18bit register
is used on the device, in its current mode only 12 bits of
useful data are returned. For now the packing is unchanged
in the buffer and this change mainly effects the input support
in the driver.
Using devm_iio_device_alloc makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Using devm_iio_device_alloc makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
devm_* APIs are device managed and make code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Using devm_iio_device_alloc and devm_request_threaded_irq makes
code simpler.
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
using word reads, no need for HI/LO register #defines
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
IIO_VAL_INT_PLUS_MICRO is the default, no need to return it explicitly
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add a resource managed devm_iio_trigger_alloc()/devm_iio_triger_free()
to automatically clean up triggers allocated by IIO drivers, thus
leading to simplified IIO drivers code.
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Kyunmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The GPADC is general purpose ADC found on TWL6030, and TWL6032 PMIC,
known also as Phoenix and PhoenixLite.
The TWL6030 and TWL6032 have GPADC with 17 and 19 channels
respectively. Some channels have current source and are used for
measuring voltage drop on resistive load for detecting battery ID
resistance, or measuring voltage drop on NTC resistors for external
temperature measurements. Some channels measure voltage, (i.e. battery
voltage), and have voltage dividers, thus, capable to scale voltage.
Some channels are dedicated for measuring die temperature.
Some channels are calibrated in 2 points, having offsets from ideal
values kept in trim registers. This is used to correct measurements.
The differences between GPADC in TWL6030 and TWL6032:
- 10 bit vs 12 bit ADC;
- 17 vs 19 channels;
- channels have different purpose(i.e. battery voltage
channel 8 vs channel 18);
- trim values are interpreted differently.
Based on the driver patched from Balaji TK, Graeme Gregory, Ambresh K,
Girish S Ghongdemath.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
The LRADC virtual channels have an 18 bit field to store the sum of up
to 2^5 accumulated samples. The read_raw function however only operates
over a single sample (12 bit resolution).
In order to use this field for scaling operations, we need it to be the
exact resolution value of the LRADC.
Besides, the driver was using an 18 bit mask (LRADC_CH_VALUE_MASK) to
report touch coordinates to userland. A 12 bit mask should be used instead
or else the touch libraries will expect a coordinates range between 0
and 0x3ffff (18 bits), instead of between 0 and 0xfff (12 bits).
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Using devm_iio_device_alloc makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Christian Strobel <christian.strobel@iis.fraunhofer.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Using devm_iio_device_alloc makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
the TI TMP006 is a non-contact temperature sensor with I2C interface;
it measures the surface temperature of a distance object using a
thermopile to absorb IR energy emitted from the object
the sensor has two channels: IR sensor voltage (16-bit) and reference
temperature of the chip (14-bit); datasheet is here:
http://www.ti.com/lit/ds/symlink/tmp006.pdf
v2 (thanks to Grygorii Strashko, Lars-Peter Clausen, Jonathan Cameron
for review comments):
* power down device on driver remove
* use sign_extend32()
* style cleanup
* add comments what channel raw LSBs mean
* spelling of thermopile
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: LM Sensors <lm-sensors@lm-sensors.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Macro get_unused_fd() is used to allocate a file descriptor with
default flags. Those default flags (0) can be "unsafe":
O_CLOEXEC must be used by default to not leak file descriptor
across exec().
Instead of macro get_unused_fd(), functions anon_inode_getfd()
or get_unused_fd_flags() should be used with flags given by userspace.
If not possible, flags should be set to O_CLOEXEC to provide userspace
with a default safe behavor.
In a further patch, get_unused_fd() will be removed so that
new code start using anon_inode_getfd() or get_unused_fd_flags()
with correct flags.
This patch replaces calls to get_unused_fd() with call to
get_unused_fd_flags(O_CLOEXEC) following advice from Erik Gilling.
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Colin Cross <ccross@google.com>
Link: http://lkml.kernel.org/r/CACSP8SjXGMk2_kX_+RgzqqQwqKernvF1Wt3K5tw991W5dfAnCA@mail.gmail.com
Link: http://lkml.kernel.org/r/cover.1376327678.git.ydroneaud@opteya.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Macro get_unused_fd() is used to allocate a file descriptor with
default flags. Those default flags (0) can be "unsafe":
O_CLOEXEC must be used by default to not leak file descriptor
across exec().
Instead of macro get_unused_fd(), functions anon_inode_getfd()
or get_unused_fd_flags() should be used with flags given by userspace.
If not possible, flags should be set to O_CLOEXEC to provide userspace
with a default safe behavor.
In a further patch, get_unused_fd() will be removed so that
new code start using anon_inode_getfd() or get_unused_fd_flags()
with correct flags.
This patch replaces calls to get_unused_fd() with call to
get_unused_fd_flags(O_CLOEXEC) following advice from Erik Gilling.
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Colin Cross <ccross@google.com>
Link: http://lkml.kernel.org/r/CACSP8SjZcpcpEtQHzcGYhf-MP7QGo0XpN7-uN7rmD=vNtopG=w@mail.gmail.com
Link: http://lkml.kernel.org/r/cover.1376327678.git.ydroneaud@opteya.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The new structures being
typedef struct tagSCTS -> struct vnt_cts
typedef struct tagSCTS_FB -> struct vnt_cts_fb
These are only needed by rxtc.c so moved to rxtx.h and
will eventually form part of the structure of
struct vnt_tx_buffer.
The linux/ieee80211.h in desc.h is no longer needed.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The new structures being
typedef struct tagSRTS_g -> struct vnt_rts_g
typedef struct tagSRTS_g_FB -> struct vnt_rts_g_fb
typedef struct tagSRTS_ab -> struct vnt_rts_ab
typedef struct tagSRTS_a_FB -> struct vnt_rts_a_fb
These are only needed by rxtc.c so moved to rxtx.h and
will eventually form part of the structure of
struct vnt_tx_buffer.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Using an int which is casted to unsigned char as inbuf is messy.
The code won't work on big endian systems. The patch should fix
this.
Signed-off-by: Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replace some magic numbers. I believe it makes
the driver more readable.
The magic number 0x26 is the XO system embedded controller
(EC) command 'DCON power enable/disable'.
Number 0x41, and 0x42 are special memory controller settings
register. The 0x41 initialize bit sequence 0x101 means:
enable memory power down function and special SDRAM clock
delay for synchronize SDRAM output and clock signal.
The 0x42 initialize squence 0x101 is wrong. According to
the specification Bit 8 is reserved, thus not in use.
I removed it.
Signed-off-by: Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move vnt_tx_buffer *pTxBufHead to argument u8 *usbPacketBuf position.
Fix the calling to s_bPacketToWirelessUsb so it attached to
the calling struct vnt_tx_buffer pTX_Buffer.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
