Attachment 144287 Details for Bug 110511 – [PATCH] drm/i915: Dump the full ESI register block on short pulse

[patch] [PATCH] drm/i915: Dump the full ESI register block on short pulse

0001-drm-i915-Dump-the-full-ESI-register-block-on-short-p.patch (text/plain), 1.32 KB, created by Ville Syrjala on 2019-05-17 15:10:20 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Ville Syrjala

Created: 2019-05-17 15:10:20 UTC

Size: 1.32 KB

patch

obsolete

>From e8403f92b46d0f1173e131d78c28e033c3203ea0 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
>Date: Fri, 17 May 2019 18:08:23 +0300
>Subject: [PATCH] drm/i915: Dump the full ESI register block on short pulse
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Let's see what the sink is trying to tell us.
>
>Signed-off-by: Ville SyrjÃ¤lÃ¤ <ville.syrjala@linux.intel.com>
>---
> drivers/gpu/drm/i915/intel_dp.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
>diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
>index 77ba4da6b981..f2f13c2e6850 100644
>--- a/drivers/gpu/drm/i915/intel_dp.c
>+++ b/drivers/gpu/drm/i915/intel_dp.c
>@@ -4798,6 +4798,7 @@ intel_dp_short_pulse(struct intel_dp *intel_dp)
> {
> 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> 	u8 old_sink_count = intel_dp->sink_count;
>+	u8 esi[14] = {};
> 	bool ret;
> 
> 	/*
>@@ -4814,6 +4815,10 @@ intel_dp_short_pulse(struct intel_dp *intel_dp)
> 	 */
> 	ret = intel_dp_get_dpcd(intel_dp);
> 
>+	drm_dp_dpcd_read(&intel_dp->aux, DP_SINK_COUNT_ESI,
>+			 esi, sizeof(esi));
>+	DRM_DEBUG_KMS("ESI: %*ph\n", (int)sizeof(esi), esi);
>+
> 	if ((old_sink_count != intel_dp->sink_count) || !ret) {
> 		/* No need to proceed if we are going to do full detect */
> 		return false;
>-- 
>2.21.0
>

Actions: View | Splinter Review

Attachments on bug 110511: 144092 | 144287 | 144318 | 144319 | 144325 | 144765 | 145270

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.