VLV_GFX_CLK_FORCE_ON_BIT
val &= VLV_GFX_CLK_FORCE_ON_BIT;
val |= s->gtlc_survive & ~VLV_GFX_CLK_FORCE_ON_BIT;
val &= ~VLV_GFX_CLK_FORCE_ON_BIT;
val |= VLV_GFX_CLK_FORCE_ON_BIT;