Commit Graph

4 Commits

Author SHA1 Message Date
Greg Kroah-Hartman 055655a9f0 First set of IIO fixes for the 4.13 cycle.
* ad2s1210
   - Fix negative angular velocity reads (identified by a gcc 7 warning)
 * aspeed-adc
   - Wait for initialization sequence to finish before enabling channels.
   Without it no channels work.
 * axp288
   - Revert a patch that dropped some bogus register mods.  No one is entirely
   sure why but it breaks charging on some devices.
   - Fix GPADC pin read returning 0. Turns out a small sleep is needed.
 * bmc150
   - Make sure device is restored to normal state after suspend / resume
   cycle.  Otherwise, simple sysfs reads are broken.
 * tsl2563
   - fix wrong event code.
 * st-accel
   - add spi 3-wire support. Needed to fix the lsm303agr accelerometer
   which only had 3 wires in all cases.  Side effect is to enable optional
   3-wire support for other devices.
 * st-pressure
   - disable multiread by default for LPS22HB (only effects SPI)
 * sun4i-gpadc-iio
   - fix unbalanced irq enable / disable
 * vf610
   - Fix VALT slection for REFSEL bits - ensures we are using the
   right reference pins.
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Merge tag 'iio-fixes-for-4.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.13 cycle.

* ad2s1210
  - Fix negative angular velocity reads (identified by a gcc 7 warning)
* aspeed-adc
  - Wait for initialization sequence to finish before enabling channels.
  Without it no channels work.
* axp288
  - Revert a patch that dropped some bogus register mods.  No one is entirely
  sure why but it breaks charging on some devices.
  - Fix GPADC pin read returning 0. Turns out a small sleep is needed.
* bmc150
  - Make sure device is restored to normal state after suspend / resume
  cycle.  Otherwise, simple sysfs reads are broken.
* tsl2563
  - fix wrong event code.
* st-accel
  - add spi 3-wire support. Needed to fix the lsm303agr accelerometer
  which only had 3 wires in all cases.  Side effect is to enable optional
  3-wire support for other devices.
* st-pressure
  - disable multiread by default for LPS22HB (only effects SPI)
* sun4i-gpadc-iio
  - fix unbalanced irq enable / disable
* vf610
  - Fix VALT slection for REFSEL bits - ensures we are using the
  right reference pins.
2017-07-23 20:54:31 -07:00
Mykola Kostenok 737cc2a593 iio: aspeed-adc: wait for initial sequence.
This patch enables adc engine at initialization time and waits
for the initial sequence completion before enabling adc channels.

Without this code adc channels are not functional and shows
zeros for all connected channels.

Tested on mellanox msn platform.

v1 -> v2:
Pointed by Rick Altherr:
 - Wait init sequence code enabled by bool
from OF match table.

Signed-off-by: Mykola Kostenok <c_mykolak@mellanox.com>
Reviewed-by: Rick Altherr <raltherr@google.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-23 12:02:40 +01:00
Arvind Yadav 4e36a8ad4d iio: Aspeed ADC - Handle return value of clk_prepare_enable
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Rick Altherr <raltherr@google.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-11 15:08:20 +01:00
Rick Altherr 573803234e iio: Aspeed ADC
Aspeed BMC SoCs include a 16 channel, 10-bit ADC. Low and high threshold
interrupts are supported by the hardware but are not currently implemented.

Signed-off-by: Rick Altherr <raltherr@google.com>
Tested-by: Xo Wang <xow@google.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-01 11:53:20 +01:00