Cássio Gabriel
713e0f0111
The SoundScape ISA driver has lacked suspend and resume callbacks since commit277e926c9b("[ALSA] sscape - Use platform_device"). A plain snd_wss resume is not sufficient for SoundScape. Resume also needs to restore the board-specific gate-array routing, and non-VIVO boards need to reinitialize the probe-time MIDI firmware and MIDI control state when the MPU-401 side was enabled during probe. That firmware reload can be handled in-kernel because commitacd4710091("ALSA: sscape: convert to firmware loader framework") moved the driver to request_firmware(). Add ISA and ISA-PnP PM callbacks, reconfigure the board on resume, reload the non-VIVO MIDI firmware, restore the MIDI state, and then resume the WSS codec. If MIDI firmware reload fails, keep the WSS resume path alive and leave MIDI unavailable instead of failing the whole device resume. Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com> Link: https://patch.msgid.link/20260411-alsa-sscape-pm-v2-2-aeb5682e14b0@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linux kernel ============ The Linux kernel is the core of any Linux operating system. It manages hardware, system resources, and provides the fundamental services for all other software. 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