The ad7924 is software compatible with the ad7923. The ad7904 and ad7914 are the
8 and 10 bit version of the ad7924.

While we are at it also drop the "with temperature sensor" from the Kconfig
entry, since the chips do not have a temperature sensor.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The driver already claims to support scale reporting in its channel spec, but
doesn't actually implement this yet. This patch uses the regulator API to get
the reference voltage and calculates the scale based on that. The patch also
moves the global configuration bits into a field in the ad7923_state struct,
since depending on the RANGE bit, the range goes either from 0 to VREF or from 0
to 2 * VREF. So we need to know the setting of the RANGE bit when calculating
the scale.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Instead of leaving 'val' uninitialized return an error if the result's address
did not match that of the channel we were trying to read.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Signed-off-by: NGe Gao <ggao@invensense.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

As the exynos_adc driver only supports device tree registration.
Making driver depend on CONFIG_OF solves possible errors during probe.
Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Currently it is not save to call iio_push_event() from hard IRQ context since
the IIO event code uses spin_lock()/spin_unlock() and it is not save to mix
calls to spin_lock()/spin_unlock() from different contexts on the same lock.
E.g. if the lock is being held in iio_event_chrdev_read() and an interrupts
kicks in and the interrupt handler calls iio_push_event() we end uo with a
deadlock.

This patch updates iio_push_event() to use spin_lock_irqsave()/
spin_unlock_irqstrestore(), since it can be called from both IRQ and non-IRQ
context. All other other users of the lock, which are always run in non-IRQ
context, are updated to spin_lock_irq()/spin_unlock_irq().
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This has been replaced by the pair of masks info_mask_separate
and info_mask_shared_by_type.  Other variants may follow.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Roland Stigge <stigge@antcom.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Reviewed-by: NMarek Vasut <marex@denx.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NStefan Roese <sr@denx.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>
cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
cc: Christophe Leroy <christophe.leroy@c-s.fr>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Shubhrajyoti D <shubhrajyoti@ti.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Andrew Chew <achew@nvidia.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Jon Brenner <jon.brenner@ams.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLaxman Dewangan <ldewangan@nvidia.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NRhyland Klein <rklein@nvidia.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NMichael Hennerich <michael.hennerich@analog.com>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLars-Peter Clausen <lars@metafoo.de>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Peter Meerwald <pmeerw@pmeerw.net>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Jon Brenner <jbrenner@taosinc.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Johan Hovold <jhovold@gmail.com>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Peter Meerwald <pmeerw@pmeerw.net>

The original info_mask is going away in favour of the broken out versions.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
cc: Ge Gao <ggao@invensense.com>