Re: [PATCH v3 6/7] drm/mediatek: Add programming flow for unsupported subsys ID hardware

[PATCH v3 6/7] drm/mediatek: Add programming flow for unsupported subsys ID hardware

To support hardware without subsys IDs on new SoCs, add a programming flow that checks whether the subsys ID is valid. If the subsys ID is invalid, the flow will call 2 alternative CMDQ APIs: cmdq_pkt_assign() and cmdq_pkt_write_s_value() to achieve the same functionality. Signed-off-by: Jason-JH.