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Tue, 20 Jan 2026 07:11:14 -0800 (PST) X-Received: by 2002:a17:90b:1e0b:b0:34c:f5b5:c1b6 with SMTP id 98e67ed59e1d1-35272f028a0mr14267256a91.12.1768921874153; Tue, 20 Jan 2026 07:11:14 -0800 (PST) Received: from hu-bibekkum-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3527306c41esm11517836a91.5.2026.01.20.07.11.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jan 2026 07:11:13 -0800 (PST) From: bibek.patro@oss.qualcomm.com To: will@kernel.org Cc: bibek.patro@oss.qualcomm.com, catalin.marinas@arm.com, charan.kalla@oss.qualcomm.com, dmitry.baryshkov@oss.qualcomm.com, iommu@lists.linux.dev, joro@8bytes.org, kernel-team@android.com, konrad.dybcio@oss.qualcomm.com, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, robin.clark@oss.qualcomm.com, robin.murphy@arm.com Subject: [PATCH] iommu/arm-smmu-qcom: Restore ACTLR settings for MDSS on sa8775p Date: Tue, 20 Jan 2026 20:41:05 +0530 Message-Id: <20260120151105.614792-1-bibek.patro@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=QohTHFyd c=1 sm=1 tr=0 ts=696f9b13 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=X4sqO_BnIXgP0qhT90oA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIwMDEyNiBTYWx0ZWRfX0jKufmD530k8 OgO7QtzSH/hYR2Z1QP0ovpjWTYcdUUL/Th7+/qar0piQlSiq8FaE2c/P9yURFCCOAwqojn3C5GU 82WS+RPedEzkBUqtoW8PZTzaASAKWUdZPMtXXzqYgP9afBcpct7yPHTOrUGeC7WiK1fbnuD0l3/ OVicuruZVCizz6NR+tzZD1/mg6T9Teac1r9jTOajGCM/DK/lkzfSrrVshz/NIUCgJHb4O4/Etbm SeoCamrGvWcL2OGeuMlbs2p/Z69ULQKVVZqK23EkrdsXJM6d8oyr2AU933sDJuvlTg7TwWhsYb6 lhKwD7KZ3O/5t0pR32lMulK8qOmukezxYnnA5xP8QnXwUTDYKXgQw4/ccFsNEAav2pcb9/NBi7X /2uhJpjBJAnIDYY2yPvaXWh9uudM4C6B9pNptKe2QKYmzFSpaTHJXNbYiXw6XBh4S79U+sD+c2X ScAZEtcZdxYr9+rMYYg== X-Proofpoint-GUID: y-iLhmscdYRiACuampO6WGohxDrQOjbW X-Proofpoint-ORIG-GUID: y-iLhmscdYRiACuampO6WGohxDrQOjbW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.20,FMLib:17.12.100.49 definitions=2026-01-20_04,2026-01-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 malwarescore=0 priorityscore=1501 adultscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601200126 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260120_071117_798418_8870AB80 X-CRM114-Status: GOOD ( 15.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Bibek Kumar Patro The ACTLR configuration for the sa8775p MDSS client was inadvertently dropped while reworking the commit f91879fdf70b ("iommu/arm-smmu-qcom: Add actlr settings for mdss on Qualcomm platforms"). Without this entry, the sa8775p MDSS block does not receive the intended default ACTLR configuration. Restore the missing compatible entry so that the platform receives the expected behavior. Signed-off-by: Bibek Kumar Patro --- Hello community, Resending this patch as the earlier version was sent as an in‑reply‑to within an ongoing discussion thread [1], instead of being sent as a new standalone patch submission. This may have caused it to inherit the same message-id and appear threaded incorrectly. Please consider this as the correct patch submission. [1]: https://lore.kernel.org/all/20260109204551.845959-1-bibek.patro@oss.qualcomm.com/ Thanks & regards, Bibek drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 456d5146831e..718d102356d9 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -43,6 +43,8 @@ static const struct of_device_id qcom_smmu_actlr_client_of_match[] = { .data = (const void *) (PREFETCH_DEEP | CPRE | CMTLB) }, { .compatible = "qcom,qcm2290-mdss", .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, + { .compatible = "qcom,sa8775p-mdss", + .data = (const void *) (PREFETCH_DEFAULT | CMTLB) }, { .compatible = "qcom,sc7280-mdss", .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, { .compatible = "qcom,sc7280-venus", -- 2.34.1