Attachment 143783 Details for Bug 109959 – i915 use the EDID quirk

[patch] i915 use the EDID quirk

0002-drm-i915-edp-Use-max-link-rate-and-lane-count-if-eDP.patch (text/plain), 1.88 KB, created by Manasi on 2019-03-26 22:14:40 UTC

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Creator: Manasi

Created: 2019-03-26 22:14:40 UTC

Size: 1.88 KB

patch

obsolete

>From bc622cbf8e705205296cdf79582801a27f666ffb Mon Sep 17 00:00:00 2001
>From: Manasi Navare <manasi.d.navare@intel.com>
>Date: Tue, 26 Mar 2019 15:10:33 -0700
>Subject: [PATCH 2/2] drm/i915/edp: Use max link rate and lane count if eDP
> EDID quirk
>
>Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
>---
> drivers/gpu/drm/i915/intel_dp.c  | 5 ++++-
> drivers/gpu/drm/i915/intel_drv.h | 3 +++
> 2 files changed, 7 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
>index 326de12c3f44..15c32be81979 100644
>--- a/drivers/gpu/drm/i915/intel_dp.c
>+++ b/drivers/gpu/drm/i915/intel_dp.c
>@@ -2034,7 +2034,8 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
> 	limits.min_bpp = 6 * 3;
> 	limits.max_bpp = intel_dp_compute_bpp(intel_dp, pipe_config);
> 
>-	if (intel_dp_is_edp(intel_dp) && intel_dp->edp_dpcd[0] < DP_EDP_14) {
>+	if (intel_dp->edp_force_max_lane_count || (intel_dp_is_edp(intel_dp) &&
>+						   intel_dp->edp_dpcd[0] < DP_EDP_14)) {
> 		/*
> 		 * Use the maximum clock and number of lanes the eDP panel
> 		 * advertizes being capable of. The eDP 1.3 and earlier panels
>@@ -7098,6 +7099,8 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
> 		if (drm_add_edid_modes(connector, edid)) {
> 			drm_connector_update_edid_property(connector,
> 								edid);
>+			if (connector->display_info.force_max_lane_count)
>+				intel_dp->edp_force_max_lane_count = true;
> 		} else {
> 			kfree(edid);
> 			edid = ERR_PTR(-EINVAL);
>diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
>index 7180e2238a18..8d88e978428a 100644
>--- a/drivers/gpu/drm/i915/intel_drv.h
>+++ b/drivers/gpu/drm/i915/intel_drv.h
>@@ -1327,6 +1327,9 @@ struct intel_dp {
> 
> 	/* Display stream compression testing */
> 	bool force_dsc_en;
>+
>+	/* eDP 1.4 EDID quirk to use max lane count */
>+	bool edp_force_max_lane_count;
> };
> 
> enum lspcon_vendor {
>-- 
>2.19.1
>

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Attachments on bug 109959: 143621 | 143624 | 143729 | 143776 | 143782 | 143783 | 143791 | 143792 | 143793 | 143794 | 143795 | 143796 | 143797 | 143801 | 143817 | 143862 | 143865 | 143874 | 143967 | 143987 | 143988 | 143990 | 143993 | 144000 | 144002

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