Attachment 131989 Details for Bug 101144 – debug_with_power_cycle_0615

[patch] debug_with_power_cycle_0615

0001-Wait-for-a-bit-and-power-cycle-the-panel-again.patch (text/plain), 1.52 KB, created by Manasi on 2017-06-16 00:34:28 UTC

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Creator: Manasi

Created: 2017-06-16 00:34:28 UTC

Size: 1.52 KB

patch

obsolete

>From e92b7384ceb472d6d366ed4bc8992814768a322e Mon Sep 17 00:00:00 2001
>From: Manasi Navare <manasi.d.navare@intel.com>
>Date: Thu, 15 Jun 2017 17:36:40 -0700
>Subject: [PATCH] Wait for a bit and power cycle the panel again
>
>Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
>---
> drivers/gpu/drm/i915/intel_ddi.c | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
>diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
>index c011d74..5fbd407 100644
>--- a/drivers/gpu/drm/i915/intel_ddi.c
>+++ b/drivers/gpu/drm/i915/intel_ddi.c
>@@ -2017,6 +2017,19 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
> 		intel_edp_panel_on(intel_dp);
> 		test = intel_digital_port_connected(dev_priv, dig_port);
> 		DRM_DEBUG_KMS("\nManasi Debug: HPD Live status after turning Panel On = %d", test);
>+		usleep_range(1000, 2000);
>+		test = intel_digital_port_connected(dev_priv, dig_port);
>+		DRM_DEBUG_KMS("\nManasi Debug: HPD Live status after turning Panel On = %d", test);
>+		if (!test) {
>+			DRM_DEBUG_KMS("\nManasi: HPD not active still so power off and power on");
>+			intel_edp_panel_off(intel_dp);
>+			test = intel_digital_port_connected(dev_priv, dig_port);
>+			DRM_DEBUG_KMS("\nManasi Debug: HPD Live status after turning Panel On = %d", test);
>+			usleep_range(1000, 2000);
>+			intel_edp_panel_on(intel_dp);
>+			test = intel_digital_port_connected(dev_priv, dig_port);
>+			DRM_DEBUG_KMS("\nManasi Debug: HPD Live status after turning Panel On = %d", test);
>+		}
> 	}
> 
> 	intel_ddi_clk_select(encoder, pll);
>-- 
>2.1.4
>

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Attachments on bug 101144: 131702 | 131941 | 131945 | 131965 | 131988 | 131989 | 131996 | 131997 | 131998 | 131999 | 132000 | 132103 | 132104 | 132105 | 132106 | 132107 | 132108

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