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drm/i915: Set the Z inversion overlap field

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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
This commit is contained in:
Deepak M 2017-02-14 18:46:16 +05:30 committed by Jani Nikula
parent 3582ad1361
commit 6043801f93
1 changed files with 13 additions and 4 deletions
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17
drivers/gpu/drm/i915/intel_dsi.c
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@ -456,12 +456,21 @@ static void intel_dsi_port_enable(struct intel_encoder *encoder)
if (intel_dsi->dual_link == DSI_DUAL_LINK_FRONT_BACK) {
u32 temp;
temp = I915_READ(VLV_CHICKEN_3);
temp &= ~PIXEL_OVERLAP_CNT_MASK |
if (IS_GEN9_LP(dev_priv)) {
for_each_dsi_port(port, intel_dsi->ports) {
temp = I915_READ(MIPI_CTRL(port));
temp &= ~BXT_PIXEL_OVERLAP_CNT_MASK |
intel_dsi->pixel_overlap <<
BXT_PIXEL_OVERLAP_CNT_SHIFT;
I915_WRITE(MIPI_CTRL(port), temp);
}
} else {
temp = I915_READ(VLV_CHICKEN_3);
temp &= ~PIXEL_OVERLAP_CNT_MASK |
intel_dsi->pixel_overlap <<
PIXEL_OVERLAP_CNT_SHIFT;
I915_WRITE(VLV_CHICKEN_3, temp);
I915_WRITE(VLV_CHICKEN_3, temp);
}
}
for_each_dsi_port(port, intel_dsi->ports) {