From b45649fbd5bf94199a84bdeb4515bca926f698a9 Mon Sep 17 00:00:00 2001
From: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Date: Fri, 24 Aug 2018 13:38:56 -0700
Subject: drm/i915: Do not advertize support for NV12 on ICL yet.
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Git-commit: b45649fbd5bf94199a84bdeb4515bca926f698a9
Patch-mainline: v4.20-rc1
References: fate#326289
ICL requires two planes for scanning out a NV12 framebuffer. Do
not advertize support for creating NV12 framebuffers until required
plane programming is implemented.
v2: Do not allow adding buffers.
Check inside skl_plane_has_planar (Ville)
Bspec: Plane Planar YUV programming (18566)
Cc: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180824203856.17700-2-dhinakaran.pandiyan@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/intel_display.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13622,6 +13622,13 @@ static bool skl_plane_has_fbc(struct drm
bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
enum pipe pipe, enum plane_id plane_id)
{
+ /*
+ * FIXME: ICL requires two hardware planes for scanning out NV12
+ * framebuffers. Do not advertize support until this is implemented.
+ */
+ if (INTEL_GEN(dev_priv) >= 11)
+ return false;
+
if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
return false;
@@ -14540,7 +14547,7 @@ static int intel_framebuffer_init(struct
break;
case DRM_FORMAT_NV12:
if (INTEL_GEN(dev_priv) < 9 || IS_SKYLAKE(dev_priv) ||
- IS_BROXTON(dev_priv)) {
+ IS_BROXTON(dev_priv) || INTEL_GEN(dev_priv) >= 11) {
DRM_DEBUG_KMS("unsupported pixel format: %s\n",
drm_get_format_name(mode_cmd->pixel_format,
&format_name));