diff mbox series

iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS

Message ID 20230113041104.4189152-1-quic_bjorande@quicinc.com (mailing list archive)
State New, archived
Headers show
Series iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS | expand

Commit Message

Bjorn Andersson Jan. 13, 2023, 4:11 a.m. UTC
The Qualcomm display driver installs a translation domain once it has
mapped a framebuffer. Use the identity domain for this device on
SC8280XP as well, to avoid faults from EFI FB accessing the framebuffer
while this is being set up.

Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Konrad Dybcio Jan. 13, 2023, 4:16 a.m. UTC | #1
On 13.01.2023 05:11, Bjorn Andersson wrote:
> The Qualcomm display driver installs a translation domain once it has
> mapped a framebuffer. Use the identity domain for this device on
> SC8280XP as well, to avoid faults from EFI FB accessing the framebuffer
> while this is being set up.
> 
> Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
>  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 4c53824582d4..cebc10c0492d 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
> @@ -250,6 +250,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
>  	{ .compatible = "qcom,sc7280-mdss" },
>  	{ .compatible = "qcom,sc7280-mss-pil" },
>  	{ .compatible = "qcom,sc8180x-mdss" },
> +	{ .compatible = "qcom,sc8280xp-mdss" },
>  	{ .compatible = "qcom,sm8250-mdss" },
>  	{ .compatible = "qcom,sdm845-mdss" },
>  	{ .compatible = "qcom,sdm845-mss-pil" },
Will Deacon Jan. 19, 2023, 7:08 p.m. UTC | #2
On Thu, 12 Jan 2023 20:11:04 -0800, Bjorn Andersson wrote:
> The Qualcomm display driver installs a translation domain once it has
> mapped a framebuffer. Use the identity domain for this device on
> SC8280XP as well, to avoid faults from EFI FB accessing the framebuffer
> while this is being set up.
> 
> 

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu-qcom: Select identity domain for sc8280xp MDSS
      https://git.kernel.org/will/c/1d6316e50572

Cheers,
diff mbox series

Patch

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index 4c53824582d4..cebc10c0492d 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -250,6 +250,7 @@  static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,sc7280-mdss" },
 	{ .compatible = "qcom,sc7280-mss-pil" },
 	{ .compatible = "qcom,sc8180x-mdss" },
+	{ .compatible = "qcom,sc8280xp-mdss" },
 	{ .compatible = "qcom,sm8250-mdss" },
 	{ .compatible = "qcom,sdm845-mdss" },
 	{ .compatible = "qcom,sdm845-mss-pil" },