HSW_PWR_WELL_CTL4 2710 drivers/gpu/drm/i915/display/intel_display_power.c .debug = HSW_PWR_WELL_CTL4, HSW_PWR_WELL_CTL4 2527 drivers/gpu/drm/i915/gvt/handlers.c MMIO_DH(HSW_PWR_WELL_CTL4, D_BDW, NULL, power_well_ctl_mmio_write);