iommu/arm-smmu-qcom: Add generic qcom,smmu-500 match entry

Add generic qcom,smmu-500 compatibility string. Newer platforms should
use this generic entry rather than declaring per-SoC entries.

Reviewed-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Tested-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221114170635.1406534-11-dmitry.baryshkov@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index 07372db..c94daf8 100644 (file)
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -491,6 +491,10 @@ static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = {
        .cfg = &qcom_smmu_impl0_cfg,
 };
 
+/*
+ * Do not add any more qcom,SOC-smmu-500 entries to this list, unless they need
+ * special handling and can not be covered by the qcom,smmu-500 entry.
+ */
 static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
        { .compatible = "qcom,msm8996-smmu-v2", .data = &msm8996_smmu_data },
        { .compatible = "qcom,msm8998-smmu-v2", .data = &qcom_smmu_v2_data },
@@ -511,6 +515,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
        { .compatible = "qcom,sm8250-smmu-500", .data = &qcom_smmu_500_impl0_data },
        { .compatible = "qcom,sm8350-smmu-500", .data = &qcom_smmu_500_impl0_data },
        { .compatible = "qcom,sm8450-smmu-500", .data = &qcom_smmu_500_impl0_data },
+       { .compatible = "qcom,smmu-500", .data = &qcom_smmu_500_impl0_data },
        { }
 };