diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 7b1b18d8f45..8c4e384b8ae 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7951,12 +7951,17 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc, else i9xx_clock(refclk, &clock); } else { - bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN); + u32 lvds = I915_READ(LVDS); + bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN); if (is_lvds) { clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> DPLL_FPA01_P1_POST_DIV_SHIFT); - clock.p2 = 14; + + if (lvds & LVDS_CLKB_POWER_UP) + clock.p2 = 7; + else + clock.p2 = 14; } else { if (dpll & PLL_P1_DIVIDE_BY_TWO) clock.p1 = 2; |