PLANE_CUS_CTL has a restriction of 4096 width even though
PLANE_SIZE and scaler size registers supports max 5120.
Take care of this restriction in max_width.
Without this patch, when 5k content is sent on HDR plane
with NV12 content, FIFO underrun is seen and screen blanks
out.
v2: Addressed review comments from Ville. Added separate
functions for max_width - for HDR and SDR
v3: Addressed review comments from Ville. Changed names of
HDR and SDR max_width functions to icl_hdr_plane_max_width
and icl_sdr_plane_max_width
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxx
Signed-off-by: Vidya Srinivas <vidya.srinivas@xxxxxxxxx>
Signed-off-by: Yashashvi Shantam <shantam.yashashvi@xxxxxxxxx>
---
.../gpu/drm/i915/display/skl_universal_plane.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 28890876bdeb..e7205a53dc2f 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -420,7 +420,17 @@ static int icl_plane_min_width(const struct drm_framebuffer *fb,
}
}
-static int icl_plane_max_width(const struct drm_framebuffer *fb,
+static int icl_hdr_plane_max_width(const struct drm_framebuffer *fb,
+ int color_plane,
+ unsigned int rotation)
+{
+ if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier))
+ return 4096;
+ else
+ return 5120;
+}
+
+static int icl_sdr_plane_max_width(const struct drm_framebuffer *fb,
int color_plane,
unsigned int rotation)
{
@@ -2108,7 +2118,10 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
if (DISPLAY_VER(dev_priv) >= 11) {
plane->min_width = icl_plane_min_width;
- plane->max_width = icl_plane_max_width;
+ if (icl_is_hdr_plane(dev_priv, plane_id))
+ plane->max_width = icl_hdr_plane_max_width;
+ else
+ plane->max_width = icl_sdr_plane_max_width;
plane->max_height = icl_plane_max_height;
plane->min_cdclk = icl_plane_min_cdclk;
} else if (DISPLAY_VER(dev_priv) >= 10) {
--
2.33.0
