Hi Damien,
Thanks for testing.

On 09/08/17 22:10, Damien Riegel wrote:
Hi Srinivas,

On Wed, Aug 09, 2017 at 06:49:25PM +0200, srinivas.kandaga...@linaro.org wrote:
From: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>

MBHC (MultiButton Headset Control) support is available in pm8921 in two
blocks, one to detect mechanical headset insertion and removal and other
block to support headset type detection and 5 button detection and othe
features like impedance calculation.

This patch adds support to:
1> Support to NC and NO type of headset Jacks.
2> Mechanical insertion and detection of headset jack.
3> Detect a 3 pole Headphone and a 4 pole Headset.
4> Detect 5 buttons.

Tested it on DB410c with Audio Mezz board with 4 pole and 3 pole

I have the same issue with this patchset, KEY_MEDIA is being reported
when unplugging a headset. I added a few traces and what I observe is
Am unable to reproduce the same issue, I tried atleast 6 different mix of headset/headphones.
here is my evtest log:  http://paste.ubuntu.com/25282592/

Could you explain bit more about your setup, so that I can try to reproduce the same issue.

My setup is DB410c + Audio Mezz board https://www.arrow.com/en/products/audiomezz/seeed-technology-limited

that the "button pressed" irq is fired when unplugging, but no "button
released" irq follows. To get a "button released" irq, I need to either
plug a headset, or plug-and-unplug headphones.

So basically, detection fails because we don't get the "button pressed"
irq prior to the mechanical switch irq. Do you know what could explain
the MBHC not firing the "button released" irq when unplugging headset?

Can you also share output of evetest and /proc/interrupts so that i can see if the extra logic of masking btn0 is creating the issue, we can also try removing the btn0 accessory detect logic and see if we get correct button press/releases.



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