• Kuninori Morimoto's avatar
    ASoC: soc-core: remove DAI suspend/resume · 450312b6
    Kuninori Morimoto authored
    Historically, CPU and Codec were implemented different, but now it is
    merged as Component.
    ALSA SoC is supporting suspend/resume at DAI and Component level.
    The method is like below.
    
    	1) Suspend/Resume all CPU DAI if bus-control was 0
    	2) Suspend/Resume all Component
    	3) Suspend/Resume all CPU DAI if bus-control was 1
    
    Historically 2) was Codec special operation.
    Because CPU and Codec were merged into Component,
    CPU   suspend/resume has 3 chance to suspend(= 1/2/3), but
    Codec suspend/resume has 1 chance (= 2).
    
    Here, DAI side suspend/resume is caring bus-control, but no driver
    which is supporting suspend/resume is setting bus-control.
    This means 3) was never used.
    
    Here, used parameter for suspend/resume component->dev and dai->dev are
    same pointer.
    For that reason, we can merge DAI and Component suspend/resume.
    One note is that we should use 2), because it is caring BIAS level.
    
    This patch removes 1) and 3).
    Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
    Link: https://lore.kernel.org/r/87r1zvx7i8.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
    450312b6
soc-dai.h 13.1 KB