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video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training

The only INTERLANE_ALIGN_DONE bit should be checked for channel equalization
during Link Training. Previously, the other bits such as LINK_STATUS_UPDATED
were checked, and channel equalization procedure was repeated unnecessarily.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Jingoo Han 13 years ago
parent
commit
1f61ce508a
1 changed files with 1 additions and 1 deletions
  1. 1 1
      drivers/video/exynos/exynos_dp_core.c

+ 1 - 1
drivers/video/exynos/exynos_dp_core.c

@@ -336,7 +336,7 @@ static int exynos_dp_channel_eq_ok(u8 link_status[6], int lane_count)
 	u8 lane_status;
 
 	lane_align = link_status[2];
-	if ((lane_align == DPCD_INTERLANE_ALIGN_DONE) == 0)
+	if ((lane_align & DPCD_INTERLANE_ALIGN_DONE) == 0)
 		return -EINVAL;
 
 	for (lane = 0; lane < lane_count; lane++) {