From: Paulo Zanoni Date: Mon, 15 Oct 2012 18:51:40 +0000 (-0300) Subject: drm/i915: add DP support to intel_enable_ddi X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=6547fef887b057ee860f4266fa2923b7bbbf1850;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git drm/i915: add DP support to intel_enable_ddi We should only write the DDI_BUF_CTL at this point for HDMI/DVI. For DP we need to do this earlier, and the values written to the register are also different. Signed-off-by: Paulo Zanoni Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 197ea9abf66f..aabbeb850ac7 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1122,18 +1122,21 @@ void intel_ddi_post_disable(struct intel_encoder *intel_encoder) I915_WRITE(PORT_CLK_SEL(port), PORT_CLK_SEL_NONE); } -void intel_enable_ddi(struct intel_encoder *encoder) +void intel_enable_ddi(struct intel_encoder *intel_encoder) { - struct drm_device *dev = encoder->base.dev; + struct drm_encoder *encoder = &intel_encoder->base; + struct drm_device *dev = encoder->dev; struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); - int port = intel_hdmi->ddi_port; + enum port port = intel_ddi_get_encoder_port(intel_encoder); + int type = intel_encoder->type; - /* Enable DDI_BUF_CTL. In HDMI/DVI mode, the port width, - * and swing/emphasis values are ignored so nothing special needs - * to be done besides enabling the port. - */ - I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE); + if (type == INTEL_OUTPUT_HDMI) { + /* In HDMI/DVI mode, the port width, and swing/emphasis values + * are ignored so nothing special needs to be done besides + * enabling the port. + */ + I915_WRITE(DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE); + } } void intel_disable_ddi(struct intel_encoder *encoder)