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    ALSA: hda - Fix regression on ATI HDMI audio · 39669225
    Takashi Iwai 提交于
    The HDMI/DP audio output on ATI/AMD chips got broken due to the recent
    restructuring of chmap.  Fortunately, Daniel Exner could bisect, and
    pointed the culprit commit [739ffee9: ALSA: hda - Add hdmi chmap
    verb programming ops to chmap object].
    
    This commit moved some ops from hdmi_ops to chmap_ops, and reassigned
    the ops in the embedded chmap object in hdmi_spec instead.
    Unfortunately, the reassignment of these ops in patch_atihdmi() were
    moved into an if block that is performed only for old chips.  Thus, on
    newer chips, the generic ops is still used, which doesn't work for
    such ATI/AMD chips.
    
    This patch addresses the regression, simply by moving the assignment
    of chmap ops to the right place.
    
    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=114981
    Fixes: 739ffee9 ('ALSA: hda - Add hdmi chmap verb programming ops to chmap object')
    Reported-and-tested-by: NDaniel Exner <dex@dragonslave.de>
    Signed-off-by: NTakashi Iwai <tiwai@suse.de>
    39669225
patch_hdmi.c 94.7 KB