DPLL_VGA_MODE_DIS
WARN_ON((I915_READ(DPLL(PIPE_B)) & DPLL_VGA_MODE_DIS) == 0);
DPLL_VGA_MODE_DIS |
I915_WRITE(DPLL(pipe), dpll & ~DPLL_VGA_MODE_DIS);
I915_WRITE(DPLL(pipe), DPLL_VGA_MODE_DIS);
I915_WRITE(DPLL(pipe), DPLL_VGA_MODE_DIS);
DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
dpll = DPLL_VGA_MODE_DIS;
dpll = DPLL_VGA_MODE_DIS;
val |= DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;