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drm/i915: add DP support to intel_enable_ddi

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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 <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2012-10-15 15:51:40 -03:00 committed by Daniel Vetter
parent fe43d3f5a3
commit 6547fef887
1 changed files with 12 additions and 9 deletions
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21
drivers/gpu/drm/i915/intel_ddi.c
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@ -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)