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    Subject[PATCH 4.14 48/54] drm/amdgpu: disable MMHUB power gating on raven
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

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

    From: Huang Rui <ray.huang@amd.com>

    commit 400b6afbaa949914460e5fd1d769c5e26ef1f6b8 upstream.

    MMHUB power gating still has issue, and doesn't work on raven at current. So
    disable it for the moment.

    Signed-off-by: Huang Rui <ray.huang@amd.com>
    Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
    Acked-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/gpu/drm/amd/amdgpu/soc15.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/drivers/gpu/drm/amd/amdgpu/soc15.c
    +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
    @@ -661,8 +661,8 @@ static int soc15_common_early_init(void
    AMD_CG_SUPPORT_MC_LS |
    AMD_CG_SUPPORT_SDMA_MGCG |
    AMD_CG_SUPPORT_SDMA_LS;
    - adev->pg_flags = AMD_PG_SUPPORT_SDMA |
    - AMD_PG_SUPPORT_MMHUB;
    + adev->pg_flags = AMD_PG_SUPPORT_SDMA;
    +
    adev->external_rev_id = 0x1;
    break;
    default:

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