Re: [Intel-gfx] [PATCH 3/7] drm/i915: Treat PCH eDP like DP in most places

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On 11/2/11 2:20 AM, Keith Packard wrote:

+		if (intel_dp->link_configuration [1] & DP_LANE_COUNT_ENHANCED_FRAME_EN)
+			intel_dp->DP |= DP_ENHANCED_FRAMING;
+
+		/*
+		 * Check for DPCD version>  1.1 and enhanced framing support
+		 */
+		if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 &&
+		    (intel_dp->dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP)) {
+			intel_dp->link_configuration[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN;
+			intel_dp->DP |= DP_ENHANCED_FRAMING;
+		}

Redundant. You've already done the link_configuration |= above in the common code. You can drop the second if chunk altogether.

In related news, the corresponding section for this in TRANS_DP_CTL setup appears to turn on enhanced framing unconditionally. This is probably not a big deal, I don't think I've ever seen a display not support it, but.

- ajax
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