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Takashi Iwai authored
Currently USB-audio driver manages the auto-pm of the primary interface although a card may consist of multiple interfaces. This may leave the secondary and other interfaces left running unnecessarily after the auto-suspend. This patch allows the driver managing the auto-pm of all bundled interfaces per card. The chip->pm_intf field is extended as chip->intf[] to contain the array of assigned interfaces, and the runtime-PM is performed to all those interfaces. Tested-by:
Macpaul Lin <macpaul.lin@mediatek.com> Link: https://lore.kernel.org/r/20200605064117.28504-1-tiwai@suse.deSigned-off-by:
Takashi Iwai <tiwai@suse.de>
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