On Wed, Mar 06, 2013 at 08:03:08PM -0300, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni at intel.com>
>
> We already have the same check on intel_enable_ddi. This patch
> prevents "unclaimed register" messages when the power well is
> disabled.
>
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
> ---
> drivers/gpu/drm/i915/intel_ddi.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> index 56bb7cb..cd2f519 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -1347,9 +1347,12 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder)
> ironlake_edp_backlight_off(intel_dp);
> }
>
> - tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
> - tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4));
> - I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp);
> + if (intel_crtc->eld_vld) {
> + tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
> + tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) <<
> + (pipe * 4));
> + I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp);
> + }
We set eld_vld=false before disabling the crtc in intel_crtc_disable().
I think you need to rearrange that so that we clear eld_vld only
after ->crtc_disable has been called.
> }
>
> int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)
> --
> 1.7.10.4
>
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--
Ville Syrj?l?
Intel OTC
