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2013-12-17iio:adc:ad7887 Fix channel reported endianness from cpu to big endianJonathan Cameron1-2/+14
Note this also sets the endianness to big endian whereas it would previously have defaulted to the cpu endian. Hence technically this is a bug fix on LE platforms. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: stable@vger.kernel.org
2013-12-17iio:imu:adis16400 fix pressure channel scan typeJonathan Cameron1-1/+6
A single channel in this driver was using the IIO_ST macro. This does not provide a parameter for setting the endianness of the channel. Thus this channel will have been reported as whatever is the native endianness of the cpu rather than big endian. This means it would be incorrect on little endian platforms. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: stable@vger.kernel.org
2013-12-15iio: cm36651: Changed return value of read functionBeomho Seo1-1/+1
A return value of callback have been changed to IIO_VAL_INT. If not IIO_VAL_INT, driver will print wrong value(*_read_int_time). A follow up patch will deal with a related bug in the new event handling code. Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-02Fix build failure for gp2ap020a00f.cRussell King - ARM Linux1-0/+1
drivers/built-in.o: In function `gp2ap020a00f_thresh_event_handler': powercap_sys.c:(.text+0x15f90c): undefined reference to `irq_work_queue' make[1]: *** [vmlinux] Error 1 make[1]: Target `uImage' not remade because of errors. make: *** [sub-make] Error 2 make: Target `uImage' not remade because of errors. You need the IRQ work support, but GP2AP020A00F is not selecting this symbol. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-02iio: hid-sensors: Fix power and report stateSrinivas Pandruvada2-14/+15
In the original HID sensor hub firmwares all Named array enums were to 0-based. But the most recent hub implemented as 1-based, because of the implementation by one of the major OS vendor. Using logical minimum for the field as the base of enum. So we add logical minimum to the selector values before setting those fields. Some sensor hub FWs already changed logical minimum from 0 to 1 to reflect this and hope every other vendor will follow. There is no easy way to add a common HID quirk for NAry elements, even if the standard specifies these field as NAry, the collection used to describe selectors is still just "logical". Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-25Merge tag 'fixes-for-3.13a' of ↵Greg Kroah-Hartman13-24/+41
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First round of fixes for IIO in the 3.13 cycle. The usual mixed bag of fixes. * 3 cases where kconfig dependencies were missing. We need to keep a closer eye on this in new drivers. * hid_sensors was abusing the iio_dev->trigger pointer. We had a round of clearing this out some time ago but this driver clearly slipped through. * A misuse of the IIO_ST macro, in mcp3422, which we should really make a concertive effort to finish removing. * Avoid a double free introduced by recent buffer reference counting in the one driver that (quite reasonably!) does things differently (am335x) * A missing mutex_unlock in kxsd9 that means that driver has been non functional for some time and no one noticed (including me who for once actually has one of the supported devices). * An incorrect assumption about the parameters of sign_extend32 in mcp3422. So nothing controversial. The only substantial patch is the hid_sensors one and that is actually just adding a new pointer to the devices private state then moving the code over to it.
2013-11-17iio:accel:kxsd9 fix missing mutex unlockFrank Zago1-3/+4
This will leave a lock held after reading from the device, preventing any further reads. Signed-off-by: Frank Zago <frank@zago.net> Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-15kfifo API type safetyStefani Seibold1-1/+1
This patch enhances the type safety for the kfifo API. It is now safe to put const data into a non const FIFO and the API will now generate a compiler warning when reading from the fifo where the destination address is pointing to a const variable. As a side effect the kfifo_put() does now expect the value of an element instead a pointer to the element. This was suggested Russell King. It make the handling of the kfifo_put easier since there is no need to create a helper variable for getting the address of a pointer or to pass integers of different sizes. IMHO the API break is okay, since there are currently only six users of kfifo_put(). The code is also cleaner by kicking out the "if (0)" expressions. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Stefani Seibold <stefani@seibold.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15tree-wide: use reinit_completion instead of INIT_COMPLETIONWolfram Sang2-4/+4
Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-09iio: adc: ti_am335x_adc: avoid double free of buffer.Lars-Peter Clausen1-2/+5
The driver is missing the iio_buffer_attach() call. As such it will attempt to free the buffer twice on removal. Introduced in commit 9e69c9 ("iio: Add reference counting for buffers"). Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09iio: Fix tcs3472 Kconfig dependenciesPeter Meerwald1-0/+2
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09iio: Fix mag3110 Kconfig dependenciesPeter Meerwald1-0/+2
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09iio: Fix mag3110 scan_typePeter Meerwald1-1/+6
last argument of IIO_ST is shift, not endianness Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-05iio: Fix sign extension table in mcp3422 driverPeter Meerwald1-4/+4
the index argument to sign_extend32() gives the bit position (from 0) to the sign bit so e.g. if the measurement has 16-bit resolution, we need to pass 15; a measurement of 0x8000 should be reported as -32768, not 32768 Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Angelo Compagnucci <angelo.compagnucci@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-02iio: hid_Sensors: fix crash during trigger unregisterSrinivas Pandruvada6-14/+17
We can't store the trigger instance created by iio_trigger_alloc, in trig field of iio_device structure. This needs to be stored in the driver private data. Othewise it can result in crash during module unload. Hence created a trig_ptr in the common data structure for each HID sensor IIO driver and storing here. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-02iio: at91: fix error return code in at91_adc_probe()Wei Yongjun1-0/+1
Fix to return -ENODEV instead of 0 if non-TSMR adc don't support, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: light: vcnl4000: Remove redundant codeSachin Kamat1-5/+1
The if check is redundant as the value obtained from iio_device_register() is already in the required format. Hence return the function directly. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: dac: mcp4725: Remove redundant codeSachin Kamat1-7/+1
Remove an inconsequential print message and return directly thereby cleaning up some code. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: dac: max517: Remove redundant variableSachin Kamat1-8/+1
Remove an inconsequential print message and return directly thereby eliminating an intermediate variable. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: dac: ad5755: Remove redundant codeSachin Kamat1-7/+1
The if check is redundant as the value obtained from iio_device_register() is already in the required format. Error messages are already printed by iio_device_register(); hence not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: dac: ad5421: Remove redundant codeSachin Kamat1-7/+1
The if check is redundant as the value obtained from iio_device_register() is already in the required format. Hence return the function directly. Error messages are already printed by iio_device_register(); hence not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: adc: twl6030-gpadc: Remove redundant codeSachin Kamat1-3/+1
The if check is redundant as the value obtained from iio_device_register() is already in the required format. Hence return the function directly. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: accel: kxsd9: Remove redundant variableSachin Kamat1-6/+1
Return directly thereby eliminating an intermediate variable. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: core: Add misssing bracesSachin Kamat1-1/+1
Silences the following checkpatch warning: WARNING: sizeof *iio_attr should be sizeof(*iio_attr) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24iio: core: Use pr_err instead of printkSachin Kamat1-6/+5
Use of pr_err is preferred to printk. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio:pressure: Adds LPS001WP support also on spi interface and Kconfig fixDenis CIOCCA2-1/+2
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio: adc: ti_am335x_adc: Remove redundant of_match_ptrSachin Kamat1-1/+1
ti_adc_dt_ids is always compiled in. Hence of_match_ptr is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio: adc: nau7802: Remove redundant of_match_ptrSachin Kamat1-1/+1
nau7802_dt_ids is always compiled in. Hence of_match_ptr is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio: adc: twl6030-gpadc: Remove redundant of_match_ptrSachin Kamat1-1/+1
of_twl6030_match_tbl is always compiled in. Hence of_match_ptr is not necessary. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio: Add Freescale mag3110 magnetometer driverPeter Meerwald3-0/+412
three-axis digital magnetometer with I2C interface datasheet is available from http://cache.freescale.com/files/sensors/doc/data_sheet/MAG3110.pdf Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-20iio:adc:max1363 support SMBus for 8-bit devicesVivien Didelot1-19/+57
The driver currently supports only I2C access. But supported devices with an accuracy of 8-bit are compatible with the SMBus byte access routines. This patch wraps the send and receive routines depending on the chip accuracy and fonctionnalities of its adapter. For instance, this allows us to use a MAX11603 on a ICH7 controller. This patch also simplifies the max1363_write_basic_config() routine to use the struct max1363_state fields directly. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-20iio: Correct description how to convert microtesla to gaussPeter Meerwald1-1/+1
this just fixes the comment; however, I'm not sure if the driver reports measurements correctly; the raw values are 0.3 uT / LSB; IIO is supposed to report magnetic fields in Gauss, so the scale should be around 1/300 (ignoring ASA) -- but value and scale are returned as VAL_INT Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-19Merge 3.12-rc6 into staging-next.Greg Kroah-Hartman2-2/+7
We want these fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-18iio: light: gp2ap020a00f: Include linux/of.h headerSachin Kamat1-0/+1
'of_match_ptr' is defined in linux/of.h. Include it explicitly to avoid build breakage in the future. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18iio: adc: ti-adc081c: Include linux/of.h headerSachin Kamat1-0/+1
'of_match_ptr' is defined in linux/of.h. Include it explicitly to avoid build breakage in the future. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18iio: adc: nau7802: Include linux/of.h headerSachin Kamat1-0/+1
'of_match_ptr' is defined in linux/of.h. Include it explicitly to avoid build breakage in the future. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18iio: adc: mcp3422: Include linux/of.h headerSachin Kamat1-0/+1
'of_match_ptr' is defined in linux/of.h. Include it explicitly to avoid build breakage in the future. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-17iio: at91: introduce touch screen support in iio adc driverJosh Wu1-24/+364
AT91 ADC hardware integrate touch screen support. So this patch add touch screen support for at91 adc iio driver. To enable touch screen support in adc, you need to add the dt parameters: 1. which type of touch are used? (4 or 5 wires), sample period time. 2. correct pressure detect threshold value. In the meantime, since touch screen will use a interal period trigger of adc, so it is conflict to other hardware triggers. Driver will disable the hardware trigger support if touch screen is enabled. This driver has been tested in AT91SAM9X5-EK and SAMA5D3x-EK. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> CC: devicetree@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-17iio: cm36651: Add CM36651 proximity/light sensorBeomho Seo3-0/+720
This patch adds a new driver for Capella CM36651 proximity and RGB sensor. Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio: Remove unused iio_sw_buffer_preenable()Lars-Peter Clausen1-18/+0
The functionality implemented by iio_sw_buffer_preenable() is now done directly in the IIO core and previous users of iio_sw_buffer_preenable() have all been updated to not use it anymore. It is unused now and can be remove. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:gp2ap020a00f: Remove redundant call to iio_sw_buffer_preenable()Lars-Peter Clausen1-1/+0
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:st_pressure: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-10/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:st_magn: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-10/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:triggered-buffer: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-1/+0
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:st_gyro: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-10/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:ti_am335x: Remove redundant call to iio_sw_buffer_preenable()Lars-Peter Clausen1-1/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Zubair Lutfullah <zubair.lutfullah@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:ad_sigma_delta: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-1/+0
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:ad7887: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen1-5/+0
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:ad7266: Remove redundant call to iio_sw_preenable()Lars-Peter Clausen1-11/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16iio:st_accel: Drop redundant call to iio_sw_buffer_preenable()Lars-Peter Clausen1-10/+1
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>