Attachment 35783 Details for Bug 28070 – [Patch 2/2]: try the max link rate

[patch] [Patch 2/2]: try the max link rate

0002-drm-i915-Use-the-max-link-rate.patch (text/plain), 1.46 KB, created by ykzhao on 2010-05-21 07:14:15 UTC

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Creator: ykzhao

Created: 2010-05-21 07:14:15 UTC

Size: 1.46 KB

patch

obsolete

>From 4e497d4b6539ab07546d08fa3a392d224480a03c Mon Sep 17 00:00:00 2001
>From: Zhao Yakui <yakui.zhao@intel.com>
>Date: Fri, 21 May 2010 22:06:26 +0800
>Subject: [PATCH] drm/i915: Use the max link rate
>
>Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
>---
> drivers/gpu/drm/i915/intel_dp.c |    7 +++----
> 1 files changed, 3 insertions(+), 4 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
>index 48ce732..0fecf60 100644
>--- a/drivers/gpu/drm/i915/intel_dp.c
>+++ b/drivers/gpu/drm/i915/intel_dp.c
>@@ -496,12 +496,12 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
> 	static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
> 
> 	for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
>-		for (clock = 0; clock <= max_clock; clock++) {
>-			int link_avail = intel_dp_link_clock(bws[clock]) * lane_count;
>+			int link_avail = intel_dp_link_clock(bws[max_clock]) *
>+						lane_count;
> 
> 			if (intel_dp_link_required(encoder->dev, intel_output, mode->clock)
> 					<= link_avail) {
>-				dp_priv->link_bw = bws[clock];
>+				dp_priv->link_bw = bws[max_clock];
> 				dp_priv->lane_count = lane_count;
> 				adjusted_mode->clock = intel_dp_link_clock(dp_priv->link_bw);
> 				DRM_DEBUG_KMS("Display port link bw %02x lane "
>@@ -510,7 +510,6 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
> 				       adjusted_mode->clock);
> 				return true;
> 			}
>-		}
> 	}
> 	return false;
> }
>-- 
>1.5.4.5
>

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Attachments on bug 28070: 35578 | 35579 | 35580 | 35584 | 35585 | 35586 | 35587 | 35588 | 35625 | 35629 | 35782 | 35783 | 35789 | 35790 | 35958 | 35959 | 35974 | 36650

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