From: Esteban Urrutia <esteuwu@proton.me>

Add the compatible for the MDSS client on the Snapdragon 8 Gen 1 so it can
be properly configured by the IOMMU driver.

Otherwise, there is an unhandled context fault, because the framebuffer is
already configured in UEFI.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Esteban Urrutia <esteuwu@proton.me>
---
This patch allows the MDSS driver to properly function on SM8450 based
devices.
---
Changes in v2:
- Split series in subseries (dispcc, dts, qmp, smmu)
- Link to v1: https://patch.msgid.link/20260622-sm8450-qol-v1-0-37e2ee8df9da@proton.me
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index e2c914fccd6f..795e8ec7e8fa 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -425,6 +425,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,sm6375-mdss" },
 	{ .compatible = "qcom,sm8150-mdss" },
 	{ .compatible = "qcom,sm8250-mdss" },
+	{ .compatible = "qcom,sm8450-mdss" },
 	{ .compatible = "qcom,x1e80100-mdss" },
 	{ }
 };

---
base-commit: bee763d5f341b99cf472afeb508d4988f62a6ca1
change-id: 20260711-sm8450-qol-smmu-57ed91ed0397

Best regards,
--  
Esteban Urrutia <esteuwu@proton.me>

On Sat, 11 Jul 2026 23:14:01 -0400, Esteban Urrutia wrote:
> Add the compatible for the MDSS client on the Snapdragon 8 Gen 1 so it can
> be properly configured by the IOMMU driver.
> 
> Otherwise, there is an unhandled context fault, because the framebuffer is
> already configured in UEFI.
> 
> 
> [...]

Applied to iommu (arm/smmu/updates), thanks!

[1/1] iommu/arm-smmu-qcom: Add SM8450 MDSS compatible
      https://git.kernel.org/iommu/c/d149c8b2c014

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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