1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (c) 2016, NVIDIA CORPORATION. 4 */ 5 6#include <common.h> 7#include <dm.h> 8#include <log.h> 9#include <malloc.h> 10#include <reset.h> 11#include <asm/io.h> 12#include <asm/reset.h> 13#include <linux/err.h> 14 15struct sandbox_reset_test { 16 struct reset_ctl ctl; 17 struct reset_ctl_bulk bulk; 18 19 struct reset_ctl *ctlp; 20 struct reset_ctl_bulk *bulkp; 21}; 22 23int sandbox_reset_test_get(struct udevice *dev) 24{ 25 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 26 27 sbrt->ctlp = &sbrt->ctl; 28 return reset_get_by_name(dev, "test", &sbrt->ctl); 29} 30 31int sandbox_reset_test_get_devm(struct udevice *dev) 32{ 33 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 34 struct reset_ctl *r; 35 36 r = devm_reset_control_get(dev, "not-a-valid-reset-ctl"); 37 if (!IS_ERR(r)) 38 return -EINVAL; 39 40 r = devm_reset_control_get_optional(dev, "not-a-valid-reset-ctl"); 41 if (r) 42 return -EINVAL; 43 44 sbrt->ctlp = devm_reset_control_get(dev, "test"); 45 if (IS_ERR(sbrt->ctlp)) 46 return PTR_ERR(sbrt->ctlp); 47 48 return 0; 49} 50 51int sandbox_reset_test_get_bulk(struct udevice *dev) 52{ 53 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 54 55 sbrt->bulkp = &sbrt->bulk; 56 return reset_get_bulk(dev, &sbrt->bulk); 57} 58 59int sandbox_reset_test_get_bulk_devm(struct udevice *dev) 60{ 61 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 62 struct reset_ctl_bulk *r; 63 64 r = devm_reset_bulk_get_optional(dev); 65 if (IS_ERR(r)) 66 return PTR_ERR(r); 67 68 sbrt->bulkp = r; 69 return 0; 70} 71 72int sandbox_reset_test_assert(struct udevice *dev) 73{ 74 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 75 76 return reset_assert(sbrt->ctlp); 77} 78 79int sandbox_reset_test_assert_bulk(struct udevice *dev) 80{ 81 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 82 83 return reset_assert_bulk(sbrt->bulkp); 84} 85 86int sandbox_reset_test_deassert(struct udevice *dev) 87{ 88 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 89 90 return reset_deassert(sbrt->ctlp); 91} 92 93int sandbox_reset_test_deassert_bulk(struct udevice *dev) 94{ 95 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 96 97 return reset_deassert_bulk(sbrt->bulkp); 98} 99 100int sandbox_reset_test_free(struct udevice *dev) 101{ 102 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 103 104 return reset_free(sbrt->ctlp); 105} 106 107int sandbox_reset_test_release_bulk(struct udevice *dev) 108{ 109 struct sandbox_reset_test *sbrt = dev_get_priv(dev); 110 111 return reset_release_bulk(sbrt->bulkp); 112} 113 114static const struct udevice_id sandbox_reset_test_ids[] = { 115 { .compatible = "sandbox,reset-ctl-test" }, 116 { } 117}; 118 119U_BOOT_DRIVER(sandbox_reset_test) = { 120 .name = "sandbox_reset_test", 121 .id = UCLASS_MISC, 122 .of_match = sandbox_reset_test_ids, 123 .priv_auto = sizeof(struct sandbox_reset_test), 124}; 125