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HDMI Audio Hotplug detection Issue on IMX6

Question asked by Vishnu Motghare on Mar 6, 2018
Latest reply on Mar 11, 2018 by Joan Xie

Hi,

 

I've tried to test HDMI Audio hot plug detection on imx6 board. I'm using mainline-4.14 kernel version & DRM subsystem (drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c)

 

I've verified following two cases

 

case a:

  • boot target
  • connect cable
  • play back (No Sound)

 

case b:

  • boot target
  • play back
  • connect cable (No sound )

 

Both, case a & case b are failing only working case is case c,

 

case c:  

  • connect cable
  • boot target
  • play back (Can Hear sound)
  • disconnect cable
  • connect it back (Can hear sound)

 

Is this known issue? 

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