Re: [Intel-gfx] [GLK MIPI DSI V5 4/8] drm/i915: Set the Z inversion overlap field

[Jani Nikula]

On Tue, 14 Feb 2017, Madhav Chauhan  wrote:
> From: Deepak M 
>
> 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 
> Signed-off-by: Madhav Chauhan 

Pushed this one patch to dinq. This one is really bxt specific, and
should have been first in the series.

BR,
Jani.

> ---
>  drivers/gpu/drm/i915/intel_dsi.c | 17 +
>  1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dsi.c 
> b/drivers/gpu/drm/i915/intel_dsi.c
> index a72a10f..ef643c1 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.c
> +++ b/drivers/gpu/drm/i915/intel_dsi.c
> @@ -561,12 +561,21 @@ 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) {

-- 
Jani Nikula, Intel Open Source Technology Center
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[Intel-gfx] [GLK MIPI DSI V5 4/8] drm/i915: Set the Z inversion overlap field

[Madhav Chauhan]

From: Deepak M 

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 
Signed-off-by: Madhav Chauhan 
---
 drivers/gpu/drm/i915/intel_dsi.c | 17 +
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index a72a10f..ef643c1 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -561,12 +561,21 @@ 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) {
-- 
1.9.1

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