From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu, 22 Sep 2011 05:45:58 +0000 (+0530)
Subject: drm/i915: read full receiver capability field during DP hot plug
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a2006cf5a7ad3463e7c1e9da2c4bc90499427558;p=linux-beck.git

drm/i915: read full receiver capability field during DP hot plug

Read link status first, followed by the full DPCD receiver cap field
rather than just the first 8 bytes.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 813939420cb4..e0ff9085fd86 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -36,7 +36,7 @@
 #include "i915_drv.h"
 #include "drm_dp_helper.h"
 
-
+#define DP_RECEIVER_CAP_SIZE	0xf
 #define DP_LINK_STATUS_SIZE	6
 #define DP_LINK_CHECK_TIMEOUT	(10 * 1000)
 
@@ -53,7 +53,7 @@ struct intel_dp {
 	int dpms_mode;
 	uint8_t link_bw;
 	uint8_t lane_count;
-	uint8_t dpcd[8];
+	uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 	struct i2c_adapter adapter;
 	struct i2c_algo_dp_aux_data algo;
 	bool is_pch_edp;