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    Subject[PATCH 4.16 13/26] drm/i915/audio: Fix audio detection issue on GLK
    Date
    4.16-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Gaurav K Singh <gaurav.k.singh@intel.com>

    commit b4615730530be85fc45ab4631c2ad6d8e2d0b97d upstream.

    On Geminilake, sometimes audio card is not getting
    detected after reboot. This is a spurious issue happening on
    Geminilake. HW codec and HD audio controller link was going
    out of sync for which there was a fix in i915 driver but
    was not getting invoked for GLK. Extending this fix to GLK as well.

    Tested by Du,Wenkai on GLK board.

    Bspec: 21829

    v2: Instead of checking GEN9_BC, BXT and GLK macros, use IS_GEN9 macro (Jani N)

    Cc: <stable@vger.kernel.org> # b651bd2a3ae3 ("drm/i915/audio: Fix audio enumeration issue on BXT")
    Cc: <stable@vger.kernel.org>
    Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com>
    Reviewed-by: Abhay Kumar <abhay.Kumar@intel.com>
    Signed-off-by: Jani Nikula <jani.nikula@intel.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/1523989338-29677-1-git-send-email-gaurav.k.singh@intel.com
    (cherry picked from commit 8221229046e862977ae93ec9d34aa583fbd10397)
    Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/gpu/drm/i915/intel_audio.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/gpu/drm/i915/intel_audio.c
    +++ b/drivers/gpu/drm/i915/intel_audio.c
    @@ -729,7 +729,7 @@ static void i915_audio_component_codec_w
    struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
    u32 tmp;

    - if (!IS_GEN9_BC(dev_priv))
    + if (!IS_GEN9(dev_priv))
    return;

    i915_audio_component_get_power(kdev);

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