[Intel-gfx] [PATCH v2] drm/i915: correct the pitch check for NV12 framebuffer

[Dongseong Hwang]

framebuffer for NV12 requires the pitch to the multiplier of 4, instead
of the width. This patch corrects it.

For instance, a 480p video, whose width and pitch are 854 and 896
respectively, is excluded for NV12 plane so far.

Signed-off-by: Dongseong Hwang <dongseong.hwang at intel.com>
Cc: Chandra Konduru <chandra.konduru at intel.com>
Cc: Vidya Srinivas <vidya.srinivas at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 drivers/gpu/drm/i915/intel_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 13e5650..8a3de12 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14600,7 +14600,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 	if (fb->format->format == DRM_FORMAT_NV12 &&
 	    (fb->width < SKL_MIN_YUV_420_SRC_W ||
 	     fb->height < SKL_MIN_YUV_420_SRC_H ||
-	     (fb->width % 4) != 0 || (fb->height % 4) != 0)) {
+	     (fb->pitches[0] % 4) != 0 || (fb->height % 4) != 0)) {
 		DRM_DEBUG_KMS("src dimensions not correct for NV12\n");
 		goto err;
 	}
-- 
2.7.4