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drm/i915: Set the Z inversion overlap field
Dual link Z-inversion overlap field is present in MIPI_CTRL register unlike the older platforms, hence setting the same in this patch. Signed-off-by: Deepak M <m.deepak@intel.com> Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1487078180-15147-5-git-send-email-madhav.chauhan@intel.com
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@ -456,12 +456,21 @@ static void intel_dsi_port_enable(struct intel_encoder *encoder)
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if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) {
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u32 temp;
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temp = I915_READ(VLV_CHICKEN_3);
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temp &= ~PIXEL_OVERLAP_CNT_MASK |
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if (IS_GEN9_LP(dev_priv)) {
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for_each_dsi_port(port, intel_dsi->ports) {
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temp = I915_READ(MIPI_CTRL(port));
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temp &= ~BXT_PIXEL_OVERLAP_CNT_MASK |
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intel_dsi->pixel_overlap <<
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BXT_PIXEL_OVERLAP_CNT_SHIFT;
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I915_WRITE(MIPI_CTRL(port), temp);
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}
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} else {
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temp = I915_READ(VLV_CHICKEN_3);
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temp &= ~PIXEL_OVERLAP_CNT_MASK |
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intel_dsi->pixel_overlap <<
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PIXEL_OVERLAP_CNT_SHIFT;
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I915_WRITE(VLV_CHICKEN_3, temp);
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I915_WRITE(VLV_CHICKEN_3, temp);
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}
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}
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for_each_dsi_port(port, intel_dsi->ports) {
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