[PATCH 03/10] drm/exynos: check if raw edid data is fake or not for test

[Inki Dae]

if raw edid data isn't same as fake data then it can't be tested.

Signed-off-by: Inki Dae <inki.dae at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_vidi.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 88dae6b..dbbf2fc 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -533,6 +533,12 @@ static int vidi_store_connection(struct device *dev,
 	if (!ctx->raw_edid)
 		ctx->raw_edid = (struct edid *)fake_edid_info;
 
+	/* if raw_edid isn't same as fake data then it can't be tested. */
+	if (ctx->raw_edid != (struct edid *)fake_edid_info) {
+		DRM_DEBUG_KMS("edid data is not fake data.\n");
+		return -EINVAL;
+	}
+
 	DRM_DEBUG_KMS("requested connection.\n");
 
 	drm_helper_hpd_irq_event(ctx->subdrv.drm_dev);
-- 
1.7.4.1