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First, add an instance parameter to smu_dpm_set_vcn_enable() function, and calling dpm_set_vcn_enable() with this given instance. Second, modify vcn_gated to be an array, to track the gating status for each vcn instance separately. With these 2 changes, smu_dpm_set_vcn_enable() will check and set the gating status for the given vcn instance ONLY. v2: remove duplicated functions. remove for-loop in dpm_set_vcn_enable(), and temporarily move it to to smu_dpm_set_power_gate(), in order to keep the exact same logic as before, until further separation in next patch. v3: add instance number in error message. v4: declaring i at the top of the function. Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>