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Libin Yang authored
Dynamically bind/unbind the PCM to pin when HDMI/DP monitor hotplug. When monitor is connected, find a proper PCM for the monitor. When monitor is disconnected, unbind the PCM from the pin. The binding policy (use Intel platform as example) is: 1. Try to use the legacy pin-pcm mapping for the device entry 0 of the pin. 2. If step 1 fails, try to bind pin to the backup PCMs. For example, on Intel platform, if DP MST is enabled, 5 PCMs will be created. PCM 3, PCM 7, PCM 8 are supposed to be used by device entry 0 of pin 5, pin 6 and pin 7. PCM 9 and PCM 10 are the backup PCMs. 3. If step 2 fails, try to find any PCM to bind to the pin. Signed-off-by:
Libin Yang <libin.yang@linux.intel.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de>
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