diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 53cf6efa67b..05bd97e3e3e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1542,6 +1542,7 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, int pch_fp_reg = (pipe == 0) ? PCH_FPA0 : PCH_FPB0; int pch_dpll_reg = (pipe == 0) ? PCH_DPLL_A : PCH_DPLL_B; int fdi_rx_reg = (pipe == 0) ? FDI_RXA_CTL : FDI_RXB_CTL; + int lvds_reg = LVDS; u32 temp; int sdvo_pixel_multiply; @@ -1772,8 +1773,12 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, * things on. */ if (is_lvds) { - u32 lvds = I915_READ(LVDS); + u32 lvds; + if (IS_IGDNG(dev)) + lvds_reg = PCH_LVDS; + + lvds = I915_READ(lvds_reg); lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT; /* Set the B0-B3 data pairs corresponding to whether we're going to * set the DPLLs for dual-channel mode or not. @@ -1788,8 +1793,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, * panels behave in the two modes. */ - I915_WRITE(LVDS, lvds); - I915_READ(LVDS); + I915_WRITE(lvds_reg, lvds); + I915_READ(lvds_reg); } I915_WRITE(fp_reg, fp); @@ -2428,7 +2433,7 @@ static void intel_setup_outputs(struct drm_device *dev) intel_crt_init(dev); /* Set up integrated LVDS */ - if (IS_MOBILE(dev) && !IS_I830(dev) && !IS_IGDNG(dev)) + if (IS_MOBILE(dev) && !IS_I830(dev)) intel_lvds_init(dev); if (IS_IGDNG(dev)) { |