arm/arm-smmu/arm-smmu-qcom.c

1 // SPDX-License-Identifier: GPL-2.0-only
9 #include "arm-smmu.h"
19 	{ .compatible = "qcom,sc7180-mdss" },
20 	{ .compatible = "qcom,sc7180-mss-pil" },
21 	{ .compatible = "qcom,sdm845-mdss" },
22 	{ .compatible = "qcom,sdm845-mss-pil" },
39 	 * To address performance degradation in non-real time clients,  in qcom_sdm845_smmu500_reset()
40 	 * such as USB and UFS, turn off wait-for-safe on sdm845 based boards,  in qcom_sdm845_smmu500_reset()
42 	 * call handlers to turn on/off the wait-for-safe logic.  in qcom_sdm845_smmu500_reset()
46 		dev_warn(smmu->dev, "Failed to turn off SAFE logic\n");  in qcom_sdm845_smmu500_reset()
53 	const struct device_node *np = smmu->dev->of_node;  in qcom_smmu500_reset()
57 	if (of_device_is_compatible(np, "qcom,sdm845-smmu-500"))  in qcom_smmu500_reset()
74 		return ERR_PTR(-EPROBE_DEFER);  in qcom_smmu_impl_init()
76 	qsmmu = devm_kzalloc(smmu->dev, sizeof(*qsmmu), GFP_KERNEL);  in qcom_smmu_impl_init()
78 		return ERR_PTR(-ENOMEM);  in qcom_smmu_impl_init()
80 	qsmmu->smmu = *smmu;  in qcom_smmu_impl_init()
82 	qsmmu->smmu.impl = &qcom_smmu_impl;  in qcom_smmu_impl_init()
83 	devm_kfree(smmu->dev, smmu);  in qcom_smmu_impl_init()
85 	return &qsmmu->smmu;  in qcom_smmu_impl_init()