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    Subject[PATCH 5.3 063/140] drm/komeda: Dont flush inactive pipes
    Date
    From: Mihail Atanassov <Mihail.Atanassov@arm.com>

    [ Upstream commit b88639b8e3808c948169af390bd7e84e909bde8d ]

    HW doesn't allow flushing inactive pipes and raises an MERR interrupt
    if you try to do so. Stop triggering the MERR interrupt in the
    middle of a commit by calling drm_atomic_helper_commit_planes
    with the ACTIVE_ONLY flag.

    Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
    Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/20191010102950.56253-1-mihail.atanassov@arm.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
    index 69d9e26c60c81..9e110d51dc1f3 100644
    --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
    +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
    @@ -85,7 +85,8 @@ static void komeda_kms_commit_tail(struct drm_atomic_state *old_state)

    drm_atomic_helper_commit_modeset_disables(dev, old_state);

    - drm_atomic_helper_commit_planes(dev, old_state, 0);
    + drm_atomic_helper_commit_planes(dev, old_state,
    + DRM_PLANE_COMMIT_ACTIVE_ONLY);

    drm_atomic_helper_commit_modeset_enables(dev, old_state);

    --
    2.20.1


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