[PATCH v3] ASoC: rockchip: spdif: restore register during runtime_suspend/resume cycle

when step into runtime_suspend, spdif pd will be disabled and loss state. so need to restore register when runtime_resume. Signed-off-by: Sugar Zhang --- Changes in v3: - remove unneeded initialization Changes in v2: - remove system suspend/resume and restore

[PATCH v3] ASoC: rockchip: spdif: restore register during runtime_suspend/resume cycle

when step into runtime_suspend, spdif pd will be disabled and loss state. so need to restore register when runtime_resume. Signed-off-by: Sugar Zhang --- Changes in v3: - remove unneeded initialization Changes in v2: - remove system suspend/resume and restore register in