diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-10-08 01:01:24 +0200 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-10-08 11:28:28 +0200 |
| commit | 298b0b392c750137f148fda056a7d4c42019814c (patch) | |
| tree | 2514e05bf6117851af6aa60bc4543984d13a067b /drivers/gpu/drm | |
| parent | drm/i915/dp: don't bother with DP PLL for PCH attached eDP (diff) | |
| download | linux-298b0b392c750137f148fda056a7d4c42019814c.tar.xz linux-298b0b392c750137f148fda056a7d4c42019814c.zip | |
drm/i915/dp: make eDP PLL functions work as advertised
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ada7319f0eaf..128c2fefd541 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -891,8 +891,10 @@ static void ironlake_edp_pll_on(struct drm_encoder *encoder) DRM_DEBUG_KMS("\n"); dpa_ctl = I915_READ(DP_A); - dpa_ctl &= ~DP_PLL_ENABLE; + dpa_ctl |= DP_PLL_ENABLE; I915_WRITE(DP_A, dpa_ctl); + POSTING_READ(DP_A); + udelay(200); } static void ironlake_edp_pll_off(struct drm_encoder *encoder) @@ -902,7 +904,7 @@ static void ironlake_edp_pll_off(struct drm_encoder *encoder) u32 dpa_ctl; dpa_ctl = I915_READ(DP_A); - dpa_ctl |= DP_PLL_ENABLE; + dpa_ctl &= ~DP_PLL_ENABLE; I915_WRITE(DP_A, dpa_ctl); POSTING_READ(DP_A); udelay(200); |