• Jerome Anand's avatar
    ALSA: add Intel HDMI LPE audio driver for BYT/CHT-T · 287599cf
    Jerome Anand authored
    On Baytrail and Cherrytrail, HDaudio may be fused out or disabled
    by the BIOS. This driver enables an alternate path to the i915
    display registers and DMA.
    Although there is no hardware path between i915 display and LPE/SST
    audio clusters, this HDMI capability is referred to in the documentation
    as "HDMI LPE Audio" so we keep the name for consistency. There is no
    hardware path or control dependencies with the LPE/SST DSP functionality.
    The hdmi-lpe-audio driver will be probed when the i915 driver creates
    a child platform device.
    Since this driver is neither SoC nor PCI, a new x86 folder is added
    Additional indirections in the code will be cleaned up in the next series
    to aid smoother DP integration
    Signed-off-by: Pierre Bossart's avatarPierre-Louis Bossart <[email protected]>
    Signed-off-by: default avatarJerome Anand <[email protected]>
    Signed-off-by: default avatarTakashi Iwai <[email protected]>
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