Re: [PATCHv5 5/6] iommu: arm-smmu-impl: Use table to list QCOM implementations

From: Sai Prakash Ranjan
Date: Mon Sep 28 2020 - 08:28:59 EST


On 2020-09-23 20:54, Robin Murphy wrote:
On 2020-09-22 07:18, Sai Prakash Ranjan wrote:
Use table and of_match_node() to match qcom implementation
instead of multiple of_device_compatible() calls for each
QCOM SMMU implementation.

Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx>
---
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
index d199b4bff15d..ce78295cfa78 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
@@ -9,6 +9,13 @@
#include "arm-smmu.h"
+static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
+ { .compatible = "qcom,sc7180-smmu-500" },
+ { .compatible = "qcom,sdm845-smmu-500" },
+ { .compatible = "qcom,sm8150-smmu-500" },
+ { .compatible = "qcom,sm8250-smmu-500" },
+ { }
+};

Can you push the table itself into arm-smmu-qcom? That way you'll be
free to add new SoCs willy-nilly without any possibility of
conflicting with anything else.

Bonus points if you can fold in the Adreno variant and keep everything
together ;)


Sure I can get bonus points :)

Thanks,
Sai

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