[Intel-gfx] [PATCH 09/10] drm/i915: check for supported depth at fb init time

[Jesse Barnes]

This will catch bad fb configs earlier.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_display.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index db88f15..f5c2012 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6946,6 +6946,11 @@ int intel_framebuffer_init(struct drm_device *dev,
 	switch (mode_cmd->bpp) {
 	case 8:
 	case 16:
+		/* Only pre-ILK can handle 5:5:5 */
+		if (mode_cmd->depth == 15 && !HAS_PCH_SPLIT(dev))
+			return -EINVAL;
+		break;
+
 	case 24:
 	case 32:
 		break;
-- 
1.7.4.1