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[WHAT & HOW] We must wait for ODM double buffer updates to complete before exiting the pipe update sequence or we may reduce DISPCLK and hit some transient underflow (pixel rate is reduced before the pipes have ODM enabled). Reviewed-by: Samson Tam <samson.tam@amd.com> Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Alvin Lee <alvin.lee2@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>