Hey Will,
On 2020-05-11 23:25, Sibi Sankar wrote:
The modem remote processor has two access paths to DDR. One path is
directly connected to DDR and another path goes through an SMMU. The
SMMU path is configured to be a direct mapping because it's used by
various peripherals in the modem subsystem. Typically this direct
mapping is configured statically at EL2 by QHEE (Qualcomm's Hypervisor
Execution Environment) before the kernel is entered.
In certain firmware configuration, especially when the kernel is
already
in full control of the SMMU, defer programming the modem SIDs to the
kernel. Let's add compatibles here so that we can have the kernel
program the SIDs for the modem in these cases.
Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
---
Now that the patch is reworded can
you please pick it up since its the
only pending path from the series.
V6
* Rebased on Will's for-joerg/arm-smmu/updates
* Reword commit message and add more details [Stephen]
drivers/iommu/arm-smmu-qcom.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/arm-smmu-qcom.c
b/drivers/iommu/arm-smmu-qcom.c
index 5bedf21587a56..cf01d0215a397 100644
--- a/drivers/iommu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm-smmu-qcom.c
@@ -17,7 +17,9 @@ static const struct of_device_id
qcom_smmu_client_of_match[] = {
{ .compatible = "qcom,mdp4" },
{ .compatible = "qcom,mdss" },
{ .compatible = "qcom,sc7180-mdss" },
+ { .compatible = "qcom,sc7180-mss-pil" },
{ .compatible = "qcom,sdm845-mdss" },
+ { .compatible = "qcom,sdm845-mss-pil" },
{ }
};
--
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