linux-kernel - [PATCH v2] drm/msm/dp: enable widebus on all relevant chipsets

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Message-ID: <20240730195012.2595980-1-quic_abhinavk@quicinc.com>
Date: Tue, 30 Jul 2024 12:50:11 -0700
From: Abhinav Kumar <quic_abhinavk@...cinc.com>
To: <freedreno@...ts.freedesktop.org>, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, "Daniel
 Vetter" <daniel@...ll.ch>,
        Abel Vesa <abel.vesa@...aro.org>,
        Bjorn Andersson
	<quic_bjorande@...cinc.com>,
        Neil Armstrong <neil.armstrong@...aro.org>
CC: <dri-devel@...ts.freedesktop.org>, <quic_jesszhan@...cinc.com>,
        <swboyd@...omium.org>, <dianders@...omium.org>, <andersson@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] drm/msm/dp: enable widebus on all relevant chipsets

Hardware document indicates that widebus is recommended on DP on all
MDSS chipsets starting version 5.x.x and above.

Follow the guideline and mark widebus support on all relevant
chipsets for DP.

Fixes: 766f705204a0 ("drm/msm/dp: Remove now unused connector_type from desc")
Fixes: 1b2d98bdd7b7 ("drm/msm/dp: Add DisplayPort controller for SM8650")
Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index aead7d27305d..bbba016ebff7 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -119,7 +119,7 @@ struct msm_dp_desc {
 };
 
 static const struct msm_dp_desc sc7180_dp_descs[] = {
-	{ .io_start = 0x0ae90000, .id = MSM_DP_CONTROLLER_0 },
+	{ .io_start = 0x0ae90000, .id = MSM_DP_CONTROLLER_0, .wide_bus_supported = true },
 	{}
 };
 
@@ -130,9 +130,9 @@ static const struct msm_dp_desc sc7280_dp_descs[] = {
 };
 
 static const struct msm_dp_desc sc8180x_dp_descs[] = {
-	{ .io_start = 0x0ae90000, .id = MSM_DP_CONTROLLER_0 },
-	{ .io_start = 0x0ae98000, .id = MSM_DP_CONTROLLER_1 },
-	{ .io_start = 0x0ae9a000, .id = MSM_DP_CONTROLLER_2 },
+	{ .io_start = 0x0ae90000, .id = MSM_DP_CONTROLLER_0, .wide_bus_supported = true },
+	{ .io_start = 0x0ae98000, .id = MSM_DP_CONTROLLER_1, .wide_bus_supported = true },
+	{ .io_start = 0x0ae9a000, .id = MSM_DP_CONTROLLER_2, .wide_bus_supported = true },
 	{}
 };
 
@@ -149,7 +149,7 @@ static const struct msm_dp_desc sc8280xp_dp_descs[] = {
 };
 
 static const struct msm_dp_desc sm8650_dp_descs[] = {
-	{ .io_start = 0x0af54000, .id = MSM_DP_CONTROLLER_0 },
+	{ .io_start = 0x0af54000, .id = MSM_DP_CONTROLLER_0, .wide_bus_supported = true },
 	{}
 };
 
-- 
2.44.0