linux-kernel - [PATCH v5 11/14] soc: qcom: ubwc: Fix SM6125's ubwc

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Message-Id: <20250625-topic-ubwc_central-v5-11-e256d18219e2@oss.qualcomm.com>
Date: Wed, 25 Jun 2025 15:10:19 +0200
From: Konrad Dybcio <konradybcio@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Dmitry Baryshkov <lumag@...nel.org>, Sean Paul <sean@...rly.run>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Clark <robin.clark@....qualcomm.com>, 
 Abhinav Kumar <abhinav.kumar@...ux.dev>, 
 Jessica Zhang <jessica.zhang@....qualcomm.com>, 
 Rob Clark <robin.clark@....qualcomm.com>, 
 Akhil P Oommen <akhilpo@....qualcomm.com>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Subject: [PATCH v5 11/14] soc: qcom: ubwc: Fix SM6125's ubwc_swizzle value

From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

The value of 7 (a.k.a. GENMASK(2, 0), a.k.a. disabling levels 1-3 of
swizzling) is what we want on this platform (and others with a UBWC
1.0 encoder).

Fix it to make mesa happy (the hardware doesn't care about the 2 higher
bits, as they weren't consumed on this platform).

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
---
 drivers/soc/qcom/ubwc_config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/ubwc_config.c b/drivers/soc/qcom/ubwc_config.c
index ef2dfaa6730f7f5cb08bac3cff6486e5f3f99570..49ec20901f607b77fb297764b97d75c0537b1db2 100644
--- a/drivers/soc/qcom/ubwc_config.c
+++ b/drivers/soc/qcom/ubwc_config.c
@@ -103,7 +103,7 @@ static const struct qcom_ubwc_cfg_data sm6115_data = {
 static const struct qcom_ubwc_cfg_data sm6125_data = {
 	.ubwc_enc_version = UBWC_1_0,
 	.ubwc_dec_version = UBWC_3_0,
-	.ubwc_swizzle = 1,
+	.ubwc_swizzle = 7,
 	.highest_bank_bit = 14,
 };
 

-- 
2.50.0