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Add genirq wakeup support for the ucb1x00 device. This allows an
attached gpio_keys driver to wakeup the system. Touchscreen is also
possible.
When there are no wakeup sources, ask the platform to assert the reset
signal to avoid any unexpected behaviour; this also puts the reset
signal at the right level when power is removed from the device.
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert the ucb1x00 driver to use genirq's interrupt services, rather
than its own private implementation. This allows a wider range of
drivers to use the GPIO interrupts (such as the gpio_keys driver)
without being aware of the UCB1x00's private IRQ system.
This prevents the UCB1x00 core driver from being built as a module,
so adjust the configuration to add that restriction.
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert the ucb1x00-core driver to use dev_pm_ops rather than the legacy
members in the mcp driver.
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Convert the ucb1x00 driver to use mutexes rather than the depreciated
semaphores for exclusive access to the ADC.
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Provide a way to handle the software controlled ucb1x00 reset signal
from the ucb1x00-core driver without having to code platform specifics
into these drivers.
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Patch taken from 5dd7bf59e0 (ARM: sa11x0: Implement autoloading of codec
and codec pdata for mcp bus.) by Jochen Friedrich <jochen@scram.de>.
This adds just the codec data part of the patch.
Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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bus."
This reverts commit 5dd7bf59e0e8563265b3e5b33276099ef628fcc7.
Conflicts:
scripts/mod/file2alias.c
This change is wrong on many levels. First and foremost, it causes a
regression. On boot on Assabet, which this patch gives a codec id of
'ucb1x00', it gives:
ucb1x00 ID not found: 1005
0x1005 is a valid ID for the UCB1300 device.
Secondly, this patch is way over the top in terms of complexity. The
only device which has been seen to be connected with this MCP code is
the UCB1x00 (UCB1200, UCB1300 etc) devices, and they all use the same
driver. Adding a match table, requiring the codec string to match the
hardware ID read out of the ID register, etc is completely over the top
when we can just read the hardware ID register.
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Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This patch fixes a build failure[1], by adding the missing semaphore.h include
References:
[1] http://kisskb.ellerman.id.au/kisskb/buildresult/2234322/
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The old access methods to the gpios will be removed when
all users has been converted. (mainly ucb1x00-ts)
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So drivers like collie_battery driver can use
those files easier.
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