| 1 | // SPDX-License-Identifier: GPL-2.0-only |
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| 2 | /* |
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| 3 | * isst_tpmi.c: SST TPMI interface |
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| 4 | * |
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| 5 | * Copyright (c) 2023, Intel Corporation. |
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| 6 | * All Rights Reserved. |
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| 7 | * |
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| 8 | */ |
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| 9 | |
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| 10 | #include <linux/auxiliary_bus.h> |
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| 11 | #include <linux/module.h> |
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| 12 | #include <linux/intel_tpmi.h> |
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| 13 | |
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| 14 | #include "isst_tpmi_core.h" |
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| 15 | |
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| 16 | static int intel_sst_probe(struct auxiliary_device *auxdev, const struct auxiliary_device_id *id) |
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| 17 | { |
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| 18 | int ret; |
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| 19 | |
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| 20 | ret = tpmi_sst_init(); |
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| 21 | if (ret) |
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| 22 | return ret; |
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| 23 | |
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| 24 | ret = tpmi_sst_dev_add(auxdev); |
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| 25 | if (ret) |
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| 26 | tpmi_sst_exit(); |
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| 27 | |
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| 28 | return ret; |
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| 29 | } |
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| 30 | |
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| 31 | static void intel_sst_remove(struct auxiliary_device *auxdev) |
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| 32 | { |
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| 33 | tpmi_sst_dev_remove(auxdev); |
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| 34 | tpmi_sst_exit(); |
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| 35 | } |
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| 36 | |
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| 37 | static int intel_sst_suspend(struct device *dev) |
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| 38 | { |
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| 39 | tpmi_sst_dev_suspend(auxdev: to_auxiliary_dev(dev)); |
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| 40 | |
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| 41 | return 0; |
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| 42 | } |
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| 43 | |
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| 44 | static int intel_sst_resume(struct device *dev) |
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| 45 | { |
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| 46 | tpmi_sst_dev_resume(auxdev: to_auxiliary_dev(dev)); |
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| 47 | |
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| 48 | return 0; |
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| 49 | } |
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| 50 | |
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| 51 | static DEFINE_SIMPLE_DEV_PM_OPS(intel_sst_pm, intel_sst_suspend, intel_sst_resume); |
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| 52 | |
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| 53 | static const struct auxiliary_device_id intel_sst_id_table[] = { |
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| 54 | { .name = "intel_vsec.tpmi-sst" }, |
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| 55 | {} |
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| 56 | }; |
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| 57 | MODULE_DEVICE_TABLE(auxiliary, intel_sst_id_table); |
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| 58 | |
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| 59 | static struct auxiliary_driver intel_sst_aux_driver = { |
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| 60 | .id_table = intel_sst_id_table, |
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| 61 | .remove = intel_sst_remove, |
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| 62 | .probe = intel_sst_probe, |
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| 63 | .driver = { |
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| 64 | .pm = pm_sleep_ptr(&intel_sst_pm), |
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| 65 | }, |
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| 66 | }; |
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| 67 | |
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| 68 | module_auxiliary_driver(intel_sst_aux_driver); |
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| 69 | |
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| 70 | MODULE_IMPORT_NS(INTEL_TPMI_SST); |
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| 71 | MODULE_DESCRIPTION("Intel TPMI SST Driver" ); |
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| 72 | MODULE_LICENSE("GPL" ); |
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| 73 | |
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