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From: Mikita Lipski <mikita.lipski@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: <Harry.Wentland@amd.com>, <Sunpeng.Li@amd.com>,
	<Bhawanpreet.Lakha@amd.com>, <Rodrigo.Siqueira@amd.com>,
	<Aurabindo.Pillai@amd.com>, <qingqing.zhuo@amd.com>,
	<mikita.lipski@amd.com>,  <roman.li@amd.com>,
	<Anson.Jacob@amd.com>, <wayne.lin@amd.com>, <stylon.wang@amd.com>,
	<solomon.chiu@amd.com>, Wenjing Liu <wenjing.liu@amd.com>,
	George Shen <george.shen@amd.com>
Subject: [PATCH 04/33] drm/amd/display: update conditions to do dfp cap ext validation
Date: Wed, 8 Sep 2021 10:53:55 -0400	[thread overview]
Message-ID: <20210908145424.3311-5-mikita.lipski@amd.com> (raw)
In-Reply-To: <20210908145424.3311-1-mikita.lipski@amd.com>

From: Wenjing Liu <wenjing.liu@amd.com>

[why]
According to DP specs dfp cap ext validation is only for branch
device withou 128b/132b channel coding support and
downstream of the branch device doesn't have compression.
Therefore we are adding conditions to only do dfp cap
extension validation for branch devcie supporting 8b/10b
channel coding only and it has no DSC passthrough capability.

Acked-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Reviewed-by: George Shen <george.shen@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index f1c9ee53ac67..5d9460e0dbab 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -2606,7 +2606,9 @@ static bool dp_active_dongle_validate_timing(
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	}
 
-	if (dongle_caps->dfp_cap_ext.supported) {
+	if (dpcd_caps->channel_coding_cap.bits.DP_128b_132b_SUPPORTED == 0 &&
+			dpcd_caps->dsc_caps.dsc_basic_caps.fields.dsc_support.DSC_PASSTHROUGH_SUPPORT == 0 &&
+			dongle_caps->dfp_cap_ext.supported) {
 
 		if (dongle_caps->dfp_cap_ext.max_pixel_rate_in_mps < (timing->pix_clk_100hz / 10000))
 			return false;
-- 
2.25.1


  parent reply	other threads:[~2021-09-08 14:54 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08 14:53 [PATCH 00/33] DC Patches September 08, 2021 Mikita Lipski
2021-09-08 14:53 ` [PATCH 01/33] drm/amd/display: Add DPCD writes at key points Mikita Lipski
2021-09-08 14:53 ` [PATCH 02/33] drm/amd/display: Fix system hang at boot Mikita Lipski
2021-09-08 14:53 ` [PATCH 03/33] drm/amd/display: move bpp range decision in decide dsc bw range function Mikita Lipski
2021-09-08 14:53 ` Mikita Lipski [this message]
2021-09-08 14:53 ` [PATCH 05/33] drm/amd/display: Add option to defer works of hpd_rx_irq Mikita Lipski
2021-09-08 14:53 ` [PATCH 06/33] drm/amd/display: Fork thread to offload work " Mikita Lipski
2021-09-08 14:53 ` [PATCH 07/33] drm/amd/display: unblock abm when odm is enabled only on configs that support it Mikita Lipski
2021-09-08 14:53 ` [PATCH 08/33] drm/amd/display: Add flag to detect dpms force off during HPD Mikita Lipski
2021-09-08 14:54 ` [PATCH 09/33] drm/amd/display: Fix dynamic link encoder access Mikita Lipski
2021-09-08 14:54 ` [PATCH 10/33] drm/amd/display: Fix false BAD_FREE warning from Coverity Mikita Lipski
2021-09-08 14:54 ` [PATCH 11/33] drm/amd/display: Fix for null pointer access for ddc pin and aux engine Mikita Lipski
2021-09-08 14:54 ` [PATCH 12/33] drm/amd/display: [FW Promotion] Release 0.0.81 Mikita Lipski
2021-09-08 14:54 ` [PATCH 13/33] drm/amd/display: Revert "dc: w/a for hard hang on HPD on native DP" Mikita Lipski
2021-09-08 14:54 ` [PATCH 14/33] drm/amd/display: 3.2.151 Mikita Lipski
2021-09-08 14:54 ` [PATCH 15/33] drm/amd/display: Fix multiple memory leaks reported by coverity Mikita Lipski
2021-09-08 14:54 ` [PATCH 16/33] drm/amd/display: Get backlight from PWM if DMCU is not initialized Mikita Lipski
2021-09-08 14:54   ` Mikita Lipski
2021-09-08 14:54 ` [PATCH 17/33] drm/amd/display: Revert "Directly retrain link from debugfs" Mikita Lipski
2021-09-08 14:54 ` [PATCH 18/33] drm/amd/display: Add regamma/degamma coefficients and set sRGB when TF is BT709 Mikita Lipski
2021-09-08 14:54 ` [PATCH 19/33] drm/amd/display: Apply w/a for hard hang on HPD Mikita Lipski
2021-09-08 14:54 ` [PATCH 20/33] drm/amd/display: Optimize bandwidth on following fast update Mikita Lipski
2021-09-08 14:54 ` [PATCH 21/33] drm/amd/display: Refine condition of cursor visibility for pipe-split Mikita Lipski
2021-09-08 14:54 ` [PATCH 22/33] drm/amd/display: dsc mst 2 4K displays go dark with 2 lane HBR3 Mikita Lipski
2021-09-08 14:54   ` Mikita Lipski
2021-09-08 14:54 ` [PATCH 23/33] drm/amd/display: Add periodic detection when zstate is enabled Mikita Lipski
2021-09-08 14:54 ` [PATCH 24/33] drm/amd/display: Add helper for blanking all dp displays Mikita Lipski
2021-09-08 14:54 ` [PATCH 25/33] drm/amd/display: [FW Promotion] Release 0.0.82 Mikita Lipski
2021-09-08 14:54 ` [PATCH 26/33] drm/amd/display: Correct degamma coefficients Mikita Lipski
2021-09-08 14:54 ` [PATCH 27/33] drm/amd/display: 3.2.152 Mikita Lipski
2021-09-08 14:54 ` [PATCH 28/33] drm/amd/display: Fix unstable HPCP compliance on Chrome Barcelo Mikita Lipski
2021-09-08 14:54 ` [PATCH 29/33] drm/amd/display: Link training retry fix for abort case Mikita Lipski
2021-09-08 14:54 ` [PATCH 30/33] drm/amd/display: Revert adding degamma coefficients Mikita Lipski
2021-09-08 14:54 ` [PATCH 31/33] drm/amd/display: Add VPG and AFMT low power support for DCN3.1 Mikita Lipski
2021-09-08 14:54 ` [PATCH 32/33] drm/amd/display: remove force_enable_edp_fec param Mikita Lipski
2021-09-08 14:54 ` [PATCH 33/33] drm/amd/display: Enable mem low power control for DCN3.1 sub-IP blocks Mikita Lipski
2021-09-10 15:11 ` [PATCH 00/33] DC Patches September 08, 2021 Wheeler, Daniel

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