* [PATCH] iommu/arm-smmu-qcom: Add SM8550 MDSS compatible
@ 2026-11-07 20:00 Nizat Mikayilli via B4 Relay
2026-11-09 13:18 ` Konrad Dybcio
0 siblings, 1 reply; 2+ messages in thread
From: Nizat Mikayilli via B4 Relay @ 2026-11-07 20:00 UTC (permalink / raw)
To: Rob Clark, Will Deacon, Robin Murphy, Joerg Roedel (AMD)
Cc: iommu, linux-arm-msm, linux-arm-kernel, linux-kernel, Nizat Mikayilli
From: Nizat Mikayilli <nacht@dxdmail.cc>
Add the SM8550 MDSS compatible to the clients list, as it also needs an
identity domain at boot. Otherwise the scanout of the bootloader's
splash screen causes unhandled context faults and the screen goes
black.
Signed-off-by: Nizat Mikayilli <nacht@dxdmail.cc>
---
Found while bringing up the display on the Samsung Galaxy Tab S9 Wi-Fi.
---
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 795e8ec7e8fa..483e9e4147b3 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -426,6 +426,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
{ .compatible = "qcom,sm8150-mdss" },
{ .compatible = "qcom,sm8250-mdss" },
{ .compatible = "qcom,sm8450-mdss" },
+ { .compatible = "qcom,sm8550-mdss" },
{ .compatible = "qcom,x1e80100-mdss" },
{ }
};
---
base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
change-id: 20261107-b4-smmu-sm8550-98521d49ecd4
Best regards,
--
Nizat Mikayilli <nacht@dxdmail.cc>
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] iommu/arm-smmu-qcom: Add SM8550 MDSS compatible
2026-11-07 20:00 [PATCH] iommu/arm-smmu-qcom: Add SM8550 MDSS compatible Nizat Mikayilli via B4 Relay
@ 2026-11-09 13:18 ` Konrad Dybcio
0 siblings, 0 replies; 2+ messages in thread
From: Konrad Dybcio @ 2026-11-09 13:18 UTC (permalink / raw)
To: nacht, Rob Clark, Will Deacon, Robin Murphy, Joerg Roedel (AMD)
Cc: iommu, linux-arm-msm, linux-arm-kernel, linux-kernel
On 11/7/26 9:00 PM, Nizat Mikayilli via B4 Relay wrote:
> From: Nizat Mikayilli <nacht@dxdmail.cc>
>
> Add the SM8550 MDSS compatible to the clients list, as it also needs an
> identity domain at boot. Otherwise the scanout of the bootloader's
> splash screen causes unhandled context faults and the screen goes
> black.
>
> Signed-off-by: Nizat Mikayilli <nacht@dxdmail.cc>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Konrad
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-11-07 20:00 [PATCH] iommu/arm-smmu-qcom: Add SM8550 MDSS compatible Nizat Mikayilli via B4 Relay
2026-11-09 13:18 ` Konrad Dybcio
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