Ensure SYSCLK is enabled while running accessory detection on WM8958.
It is always required so there is no sense in requiring machine drivers
to individually do this.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Add support for loading the SigmaDSP firmware using regmap. This allows us
to transparently use SPI or I2C as the transport protocol on devices which
support them.
For now we keep the old I2C support since we have one user of this which is not
straight forward to convert to regmap, due to variable length registers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Provide some error messages when loading the firmware fails, so it is possible
to diagnose the reason for the failure.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
It has been pointed out previously, that the firmware subsystem is not the right
place for the SigmaDSP firmware loader. Furthermore the SigmaDSP is currently
only used in audio products and we are aiming for better integration into the
ASoC framework in the future, with support for ALSA controls for firmware
parameters and support dynamic power management as well. So the natural choice
for the SigmaDSP firmware loader is the ASoC subsystem.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
The SigmaDSP firmware loader currently does not perform enough boundary size
checks when processing the firmware. As a result it is possible that a
malformed firmware can cause an out of bounds memory access.
This patch adds checks which ensure that both the action header and the payload
are completely inside the firmware data boundaries before processing them.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
The Littlemill audio card supports a number of pluggable miniboards,
normally for the WM8994 family of devices. As all these devices look
mostly the same from an external configuration point of view and are
runtime enumerable we can write a standard machine driver which will
work out of the box with any of them. Start doing that with the bare
bones of a driver, only supporting AIF1.
Future patches will flesh this out to be more fully featured.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
We can reduce the code size here a bit by using snd_soc_update_bits instead of
open-coding the read-modify-write cycle. The conversion done in this patch is
not completely straightforward and some minor code restructuring has been
incorporated to further reduce the code size.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Add a DAPM supply widget for the internal sysclk, so it can be disabled
automatically when not needed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
DAPM route controls only take effect on paths where the sink is a mixer or a
mux, furthermore the control must be a control assigned to the mixer or mux.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This makes the output a bit less confusing on multi-CODEC systems as the
same pin may appear in multiple CODECs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
We need to enumerate all the CODECs that are part of the card we're
instantiating, not all the CODECs that are in the system as the system
may have multiple cards.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
It's never been updated so it can't be that useful and it makes the
driver needlessly chatty.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
