[PATCH v3 2/2] iommu: arm-smmu-qcom: add sdm670 compatible

[Richard Acayan]

The Snapdragon 670 needs the IOMMU for GENI I2C. Even though there is a
generic compatible string to support it, it still needs special
handling. The Adreno SMMU is separate, like Snapdragon 845, but the lack
of PCI on SDM670 makes a reset quirk unnecessary. Add a compatible
string to remove both built-in Adreno handling and reset quirk handling
in SDM670.

Signed-off-by: Richard Acayan <mailingradian at gmail.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index 3be81338a25b..89242aa2f29d 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -481,6 +481,13 @@ static const struct qcom_smmu_match_data qcom_smmu_data = {
 	.adreno_impl = &qcom_adreno_smmu_500_impl,
 };
 
+static const struct qcom_smmu_match_data sdm670_smmu_500_data = {
+	/* SDM670 is the same as SDM845 except it doesn't have the reset quirk */
+	.impl = &qcom_smmu_500_impl,
+	/* No adreno impl, on sdm670 it is handled by separete sdm670-smmu-v2. */
+	/* No debug configuration */
+};
+
 static const struct qcom_smmu_match_data sdm845_smmu_500_data = {
 	.impl = &sdm845_smmu_500_impl,
 	/* No adreno impl, on sdm845 it is handled by separete sdm845-smmu-v2. */
@@ -506,6 +513,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = {
 	{ .compatible = "qcom,sc8180x-smmu-500", .data = &qcom_smmu_500_impl0_data },
 	{ .compatible = "qcom,sc8280xp-smmu-500", .data = &qcom_smmu_500_impl0_data },
 	{ .compatible = "qcom,sdm630-smmu-v2", .data = &qcom_smmu_v2_data },
+	{ .compatible = "qcom,sdm670-smmu-500", .data = &sdm670_smmu_500_data },
 	{ .compatible = "qcom,sdm845-smmu-v2", .data = &qcom_smmu_v2_data },
 	{ .compatible = "qcom,sdm845-smmu-500", .data = &sdm845_smmu_500_data },
 	{ .compatible = "qcom,sm6125-smmu-500", .data = &qcom_smmu_500_impl0_data },
-- 
2.38.1