WCD934x supports Multi Button Headset control which enable headset detection
along with headset button detection.

This patch adds interrupts required for MBHC functionality.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Currently only two interrupts supported is added in wcd934x interrupt controller,
however if we are adding more interrupts the file will become too much unreadable.

So add a macro to make adding new interrupts easy and also convert existing
slim and soundwire interrupts to use it.
This is in preparation to enable Multi Button Headset Control support on this
codec.

WCD934x supports Multi Button Headset control which enable headset detection
along with headset button detection.

This patch adds interrupts required for MBHC functionality.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.

Fixes: 6ac7e4d7ad70 ("mfd: wcd934x: Add support to wcd9340/wcd9341 codec")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Qualcomm WCD9340/WCD9341 Codec is a standalone Hi-Fi audio codec IC.

This codec has integrated SoundWire controller, pin controller and
interrupt controller.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>