^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * AMD Secure Processor device driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2014,2018 Advanced Micro Devices, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Tom Lendacky <thomas.lendacky@amd.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/kthread.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/ccp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include "ccp-dev.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct sp_platform {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) int coherent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) unsigned int irq_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static const struct sp_dev_vdata dev_vdata[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .bar = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #ifdef CONFIG_CRYPTO_DEV_SP_CCP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .ccp_vdata = &ccpv3_platform,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static const struct acpi_device_id sp_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) { "AMDI0C00", (kernel_ulong_t)&dev_vdata[0] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) MODULE_DEVICE_TABLE(acpi, sp_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static const struct of_device_id sp_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) { .compatible = "amd,ccp-seattle-v1a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .data = (const void *)&dev_vdata[0] },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) MODULE_DEVICE_TABLE(of, sp_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static struct sp_dev_vdata *sp_get_of_version(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) const struct of_device_id *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) match = of_match_node(sp_of_match, pdev->dev.of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (match && match->data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return (struct sp_dev_vdata *)match->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static struct sp_dev_vdata *sp_get_acpi_version(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) const struct acpi_device_id *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) match = acpi_match_device(sp_acpi_match, &pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (match && match->driver_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return (struct sp_dev_vdata *)match->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static int sp_get_irqs(struct sp_device *sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct sp_platform *sp_platform = sp->dev_specific;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct device *dev = sp->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) unsigned int i, count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) for (i = 0, count = 0; i < pdev->num_resources; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct resource *res = &pdev->resource[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (resource_type(res) == IORESOURCE_IRQ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) sp_platform->irq_count = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) ret = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) dev_notice(dev, "unable to get IRQ (%d)\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) sp->psp_irq = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (count == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) sp->ccp_irq = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) ret = platform_get_irq(pdev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) dev_notice(dev, "unable to get IRQ (%d)\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) sp->ccp_irq = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int sp_platform_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct sp_device *sp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct sp_platform *sp_platform;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) enum dev_dma_attr attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) sp = sp_alloc_struct(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (!sp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) sp_platform = devm_kzalloc(dev, sizeof(*sp_platform), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (!sp_platform)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) sp->dev_specific = sp_platform;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) sp->dev_vdata = pdev->dev.of_node ? sp_get_of_version(pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) : sp_get_acpi_version(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (!sp->dev_vdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) ret = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) dev_err(dev, "missing driver data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) sp->io_map = devm_platform_ioremap_resource(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (IS_ERR(sp->io_map)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) ret = PTR_ERR(sp->io_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) attr = device_get_dma_attr(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (attr == DEV_DMA_NOT_SUPPORTED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) dev_err(dev, "DMA is not supported");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) sp_platform->coherent = (attr == DEV_DMA_COHERENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (sp_platform->coherent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) sp->axcache = CACHE_WB_NO_ALLOC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) sp->axcache = CACHE_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ret = sp_get_irqs(sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) dev_set_drvdata(dev, sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) ret = sp_init(sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) goto e_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) dev_notice(dev, "enabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) e_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) dev_notice(dev, "initialization failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static int sp_platform_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct sp_device *sp = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) sp_destroy(sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) dev_notice(dev, "disabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static int sp_platform_suspend(struct platform_device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) pm_message_t state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct sp_device *sp = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return sp_suspend(sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int sp_platform_resume(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct sp_device *sp = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return sp_resume(sp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static struct platform_driver sp_platform_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) .name = "ccp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .acpi_match_table = sp_acpi_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) .of_match_table = sp_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) .probe = sp_platform_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) .remove = sp_platform_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) .suspend = sp_platform_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) .resume = sp_platform_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) int sp_platform_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) return platform_driver_register(&sp_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) void sp_platform_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) platform_driver_unregister(&sp_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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