1d62a7d41SVinod Koul // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) 2d62a7d41SVinod Koul // Copyright(c) 2015-17 Intel Corporation. 3d62a7d41SVinod Koul 4d62a7d41SVinod Koul /* 5d62a7d41SVinod Koul * SDW Intel Init Routines 6d62a7d41SVinod Koul * 7d62a7d41SVinod Koul * Initializes and creates SDW devices based on ACPI and Hardware values 8d62a7d41SVinod Koul */ 9d62a7d41SVinod Koul 10d62a7d41SVinod Koul #include <linux/acpi.h> 114abbd783SPaul Gortmaker #include <linux/export.h> 123fc40449SVinod Koul #include <linux/io.h> 134abbd783SPaul Gortmaker #include <linux/module.h> 14d62a7d41SVinod Koul #include <linux/platform_device.h> 15d62a7d41SVinod Koul #include <linux/soundwire/sdw_intel.h> 16b6109dd6SPierre-Louis Bossart #include "cadence_master.h" 17d62a7d41SVinod Koul #include "intel.h" 18d62a7d41SVinod Koul 196f11586fSPierre-Louis Bossart #define SDW_LINK_TYPE 4 /* from Intel ACPI documentation */ 20d62a7d41SVinod Koul #define SDW_MAX_LINKS 4 21d62a7d41SVinod Koul #define SDW_SHIM_LCAP 0x0 22d62a7d41SVinod Koul #define SDW_SHIM_BASE 0x2C000 23d62a7d41SVinod Koul #define SDW_ALH_BASE 0x2C800 24d62a7d41SVinod Koul #define SDW_LINK_BASE 0x30000 25d62a7d41SVinod Koul #define SDW_LINK_SIZE 0x10000 26d62a7d41SVinod Koul 276d2c6669SPierre-Louis Bossart static int ctrl_link_mask; 286d2c6669SPierre-Louis Bossart module_param_named(sdw_link_mask, ctrl_link_mask, int, 0444); 2950302fc7SPierre-Louis Bossart MODULE_PARM_DESC(sdw_link_mask, "Intel link mask (one bit per link)"); 3050302fc7SPierre-Louis Bossart 316d2c6669SPierre-Louis Bossart static bool is_link_enabled(struct fwnode_handle *fw_node, int i) 326d2c6669SPierre-Louis Bossart { 336d2c6669SPierre-Louis Bossart struct fwnode_handle *link; 346d2c6669SPierre-Louis Bossart char name[32]; 356d2c6669SPierre-Louis Bossart u32 quirk_mask = 0; 366d2c6669SPierre-Louis Bossart 376d2c6669SPierre-Louis Bossart /* Find master handle */ 386d2c6669SPierre-Louis Bossart snprintf(name, sizeof(name), 396d2c6669SPierre-Louis Bossart "mipi-sdw-link-%d-subproperties", i); 406d2c6669SPierre-Louis Bossart 416d2c6669SPierre-Louis Bossart link = fwnode_get_named_child_node(fw_node, name); 426d2c6669SPierre-Louis Bossart if (!link) 436d2c6669SPierre-Louis Bossart return false; 446d2c6669SPierre-Louis Bossart 456d2c6669SPierre-Louis Bossart fwnode_property_read_u32(link, 466d2c6669SPierre-Louis Bossart "intel-quirk-mask", 476d2c6669SPierre-Louis Bossart &quirk_mask); 486d2c6669SPierre-Louis Bossart 496d2c6669SPierre-Louis Bossart if (quirk_mask & SDW_INTEL_QUIRK_MASK_BUS_DISABLE) 506d2c6669SPierre-Louis Bossart return false; 516d2c6669SPierre-Louis Bossart 526d2c6669SPierre-Louis Bossart return true; 536d2c6669SPierre-Louis Bossart } 546d2c6669SPierre-Louis Bossart 556d2c6669SPierre-Louis Bossart static int sdw_intel_cleanup(struct sdw_intel_ctx *ctx) 56d62a7d41SVinod Koul { 57f98f690fSPierre-Louis Bossart struct sdw_intel_link_res *link = ctx->links; 586d2c6669SPierre-Louis Bossart u32 link_mask; 59d62a7d41SVinod Koul int i; 60d62a7d41SVinod Koul 61d62a7d41SVinod Koul if (!link) 62d62a7d41SVinod Koul return 0; 63d62a7d41SVinod Koul 646d2c6669SPierre-Louis Bossart link_mask = ctx->link_mask; 656d2c6669SPierre-Louis Bossart 666d2c6669SPierre-Louis Bossart for (i = 0; i < ctx->count; i++, link++) { 676d2c6669SPierre-Louis Bossart if (!(link_mask & BIT(i))) 686d2c6669SPierre-Louis Bossart continue; 696d2c6669SPierre-Louis Bossart 70d62a7d41SVinod Koul if (link->pdev) 71d62a7d41SVinod Koul platform_device_unregister(link->pdev); 72d62a7d41SVinod Koul } 73d62a7d41SVinod Koul 74d62a7d41SVinod Koul return 0; 75d62a7d41SVinod Koul } 76d62a7d41SVinod Koul 776d2c6669SPierre-Louis Bossart static int 786d2c6669SPierre-Louis Bossart sdw_intel_scan_controller(struct sdw_intel_acpi_info *info) 79d62a7d41SVinod Koul { 80d62a7d41SVinod Koul struct acpi_device *adev; 81d62a7d41SVinod Koul int ret, i; 82d62a7d41SVinod Koul u8 count; 83d62a7d41SVinod Koul 846d2c6669SPierre-Louis Bossart if (acpi_bus_get_device(info->handle, &adev)) 856d2c6669SPierre-Louis Bossart return -EINVAL; 86d62a7d41SVinod Koul 87d62a7d41SVinod Koul /* Found controller, find links supported */ 88d62a7d41SVinod Koul count = 0; 89d62a7d41SVinod Koul ret = fwnode_property_read_u8_array(acpi_fwnode_handle(adev), 90d62a7d41SVinod Koul "mipi-sdw-master-count", &count, 1); 91d62a7d41SVinod Koul 926d2c6669SPierre-Louis Bossart /* 936d2c6669SPierre-Louis Bossart * In theory we could check the number of links supported in 946d2c6669SPierre-Louis Bossart * hardware, but in that step we cannot assume SoundWire IP is 956d2c6669SPierre-Louis Bossart * powered. 966d2c6669SPierre-Louis Bossart * 976d2c6669SPierre-Louis Bossart * In addition, if the BIOS doesn't even provide this 986d2c6669SPierre-Louis Bossart * 'master-count' property then all the inits based on link 996d2c6669SPierre-Louis Bossart * masks will fail as well. 1006d2c6669SPierre-Louis Bossart * 1016d2c6669SPierre-Louis Bossart * We will check the hardware capabilities in the startup() step 1026d2c6669SPierre-Louis Bossart */ 1036d2c6669SPierre-Louis Bossart 104d62a7d41SVinod Koul if (ret) { 105d62a7d41SVinod Koul dev_err(&adev->dev, 106d62a7d41SVinod Koul "Failed to read mipi-sdw-master-count: %d\n", ret); 1076d2c6669SPierre-Louis Bossart return -EINVAL; 108d62a7d41SVinod Koul } 109d62a7d41SVinod Koul 110d62a7d41SVinod Koul /* Check count is within bounds */ 111d62a7d41SVinod Koul if (count > SDW_MAX_LINKS) { 112d62a7d41SVinod Koul dev_err(&adev->dev, "Link count %d exceeds max %d\n", 113d62a7d41SVinod Koul count, SDW_MAX_LINKS); 1146d2c6669SPierre-Louis Bossart return -EINVAL; 1156f7219feSGuennadi Liakhovetski } 1166f7219feSGuennadi Liakhovetski 1176f7219feSGuennadi Liakhovetski if (!count) { 118432732b8SPierre-Louis Bossart dev_warn(&adev->dev, "No SoundWire links detected\n"); 1196d2c6669SPierre-Louis Bossart return -EINVAL; 1206d2c6669SPierre-Louis Bossart } 1216d2c6669SPierre-Louis Bossart dev_dbg(&adev->dev, "ACPI reports %d SDW Link devices\n", count); 1226d2c6669SPierre-Louis Bossart 1236d2c6669SPierre-Louis Bossart info->count = count; 1246d2c6669SPierre-Louis Bossart info->link_mask = 0; 1256d2c6669SPierre-Louis Bossart 1266d2c6669SPierre-Louis Bossart for (i = 0; i < count; i++) { 1276d2c6669SPierre-Louis Bossart if (ctrl_link_mask && !(ctrl_link_mask & BIT(i))) { 1286d2c6669SPierre-Louis Bossart dev_dbg(&adev->dev, 1296d2c6669SPierre-Louis Bossart "Link %d masked, will not be enabled\n", i); 1306d2c6669SPierre-Louis Bossart continue; 131d62a7d41SVinod Koul } 132d62a7d41SVinod Koul 1336d2c6669SPierre-Louis Bossart if (!is_link_enabled(acpi_fwnode_handle(adev), i)) { 1346d2c6669SPierre-Louis Bossart dev_dbg(&adev->dev, 1356d2c6669SPierre-Louis Bossart "Link %d not selected in firmware\n", i); 1366d2c6669SPierre-Louis Bossart continue; 1376d2c6669SPierre-Louis Bossart } 1386d2c6669SPierre-Louis Bossart 1396d2c6669SPierre-Louis Bossart info->link_mask |= BIT(i); 1406d2c6669SPierre-Louis Bossart } 1416d2c6669SPierre-Louis Bossart 1426d2c6669SPierre-Louis Bossart return 0; 1436d2c6669SPierre-Louis Bossart } 1446d2c6669SPierre-Louis Bossart 14512b16146SPierre-Louis Bossart #define HDA_DSP_REG_ADSPIC2 (0x10) 14612b16146SPierre-Louis Bossart #define HDA_DSP_REG_ADSPIS2 (0x14) 14712b16146SPierre-Louis Bossart #define HDA_DSP_REG_ADSPIC2_SNDW BIT(5) 14812b16146SPierre-Louis Bossart 14912b16146SPierre-Louis Bossart /** 15012b16146SPierre-Louis Bossart * sdw_intel_enable_irq() - enable/disable Intel SoundWire IRQ 15112b16146SPierre-Louis Bossart * @mmio_base: The mmio base of the control register 15212b16146SPierre-Louis Bossart * @enable: true if enable 15312b16146SPierre-Louis Bossart */ 15412b16146SPierre-Louis Bossart void sdw_intel_enable_irq(void __iomem *mmio_base, bool enable) 15512b16146SPierre-Louis Bossart { 15612b16146SPierre-Louis Bossart u32 val; 15712b16146SPierre-Louis Bossart 15812b16146SPierre-Louis Bossart val = readl(mmio_base + HDA_DSP_REG_ADSPIC2); 15912b16146SPierre-Louis Bossart 16012b16146SPierre-Louis Bossart if (enable) 16112b16146SPierre-Louis Bossart val |= HDA_DSP_REG_ADSPIC2_SNDW; 16212b16146SPierre-Louis Bossart else 16312b16146SPierre-Louis Bossart val &= ~HDA_DSP_REG_ADSPIC2_SNDW; 16412b16146SPierre-Louis Bossart 16512b16146SPierre-Louis Bossart writel(val, mmio_base + HDA_DSP_REG_ADSPIC2); 16612b16146SPierre-Louis Bossart } 1678459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_enable_irq, SOUNDWIRE_INTEL_INIT); 16812b16146SPierre-Louis Bossart 1696d2c6669SPierre-Louis Bossart static struct sdw_intel_ctx 1706d2c6669SPierre-Louis Bossart *sdw_intel_probe_controller(struct sdw_intel_res *res) 1716d2c6669SPierre-Louis Bossart { 1726d2c6669SPierre-Louis Bossart struct platform_device_info pdevinfo; 1736d2c6669SPierre-Louis Bossart struct platform_device *pdev; 1746d2c6669SPierre-Louis Bossart struct sdw_intel_link_res *link; 1756d2c6669SPierre-Louis Bossart struct sdw_intel_ctx *ctx; 1766d2c6669SPierre-Louis Bossart struct acpi_device *adev; 1776d2c6669SPierre-Louis Bossart u32 link_mask; 1786d2c6669SPierre-Louis Bossart int count; 1796d2c6669SPierre-Louis Bossart int i; 1806d2c6669SPierre-Louis Bossart 1816d2c6669SPierre-Louis Bossart if (!res) 1826d2c6669SPierre-Louis Bossart return NULL; 1836d2c6669SPierre-Louis Bossart 1846d2c6669SPierre-Louis Bossart if (acpi_bus_get_device(res->handle, &adev)) 1856d2c6669SPierre-Louis Bossart return NULL; 1866d2c6669SPierre-Louis Bossart 1876d2c6669SPierre-Louis Bossart if (!res->count) 1886d2c6669SPierre-Louis Bossart return NULL; 1896d2c6669SPierre-Louis Bossart 1906d2c6669SPierre-Louis Bossart count = res->count; 191d62a7d41SVinod Koul dev_dbg(&adev->dev, "Creating %d SDW Link devices\n", count); 192d62a7d41SVinod Koul 193dd906cc6SPierre-Louis Bossart ctx = devm_kzalloc(&adev->dev, sizeof(*ctx), GFP_KERNEL); 194d62a7d41SVinod Koul if (!ctx) 195d62a7d41SVinod Koul return NULL; 196d62a7d41SVinod Koul 197d62a7d41SVinod Koul ctx->count = count; 198dd906cc6SPierre-Louis Bossart ctx->links = devm_kcalloc(&adev->dev, ctx->count, 199dd906cc6SPierre-Louis Bossart sizeof(*ctx->links), GFP_KERNEL); 200d62a7d41SVinod Koul if (!ctx->links) 201dd906cc6SPierre-Louis Bossart return NULL; 202d62a7d41SVinod Koul 2036d2c6669SPierre-Louis Bossart ctx->count = count; 2046d2c6669SPierre-Louis Bossart ctx->mmio_base = res->mmio_base; 2056d2c6669SPierre-Louis Bossart ctx->link_mask = res->link_mask; 2066d2c6669SPierre-Louis Bossart ctx->handle = res->handle; 2074a17c441SPierre-Louis Bossart mutex_init(&ctx->shim_lock); 2086d2c6669SPierre-Louis Bossart 209d62a7d41SVinod Koul link = ctx->links; 2106d2c6669SPierre-Louis Bossart link_mask = ctx->link_mask; 211d62a7d41SVinod Koul 212d62a7d41SVinod Koul /* Create SDW Master devices */ 2136d2c6669SPierre-Louis Bossart for (i = 0; i < count; i++, link++) { 2149cd1c5a7SPierre-Louis Bossart if (!(link_mask & BIT(i))) { 21550302fc7SPierre-Louis Bossart dev_dbg(&adev->dev, 21650302fc7SPierre-Louis Bossart "Link %d masked, will not be enabled\n", i); 21750302fc7SPierre-Louis Bossart continue; 21850302fc7SPierre-Louis Bossart } 21950302fc7SPierre-Louis Bossart 2206d2c6669SPierre-Louis Bossart link->mmio_base = res->mmio_base; 221f98f690fSPierre-Louis Bossart link->registers = res->mmio_base + SDW_LINK_BASE 222d62a7d41SVinod Koul + (SDW_LINK_SIZE * i); 223f98f690fSPierre-Louis Bossart link->shim = res->mmio_base + SDW_SHIM_BASE; 224f98f690fSPierre-Louis Bossart link->alh = res->mmio_base + SDW_ALH_BASE; 225d62a7d41SVinod Koul 226f98f690fSPierre-Louis Bossart link->ops = res->ops; 2274b206d34SRander Wang link->dev = res->dev; 228c46302ecSVinod Koul 2294a17c441SPierre-Louis Bossart link->shim_lock = &ctx->shim_lock; 2304a17c441SPierre-Louis Bossart link->shim_mask = &ctx->shim_mask; 2314a17c441SPierre-Louis Bossart 232d62a7d41SVinod Koul memset(&pdevinfo, 0, sizeof(pdevinfo)); 233d62a7d41SVinod Koul 234d62a7d41SVinod Koul pdevinfo.parent = res->parent; 2356d2c6669SPierre-Louis Bossart pdevinfo.name = "intel-sdw"; 236d62a7d41SVinod Koul pdevinfo.id = i; 237d62a7d41SVinod Koul pdevinfo.fwnode = acpi_fwnode_handle(adev); 2384ab34412SPierre-Louis Bossart pdevinfo.data = link; 2394ab34412SPierre-Louis Bossart pdevinfo.size_data = sizeof(*link); 240d62a7d41SVinod Koul 241d62a7d41SVinod Koul pdev = platform_device_register_full(&pdevinfo); 242d62a7d41SVinod Koul if (IS_ERR(pdev)) { 243d62a7d41SVinod Koul dev_err(&adev->dev, 244d62a7d41SVinod Koul "platform device creation failed: %ld\n", 245d62a7d41SVinod Koul PTR_ERR(pdev)); 2466d2c6669SPierre-Louis Bossart goto err; 247d62a7d41SVinod Koul } 248d62a7d41SVinod Koul link->pdev = pdev; 249d62a7d41SVinod Koul } 250d62a7d41SVinod Koul 251d62a7d41SVinod Koul return ctx; 252d62a7d41SVinod Koul 2536d2c6669SPierre-Louis Bossart err: 254dd906cc6SPierre-Louis Bossart ctx->count = i; 2556d2c6669SPierre-Louis Bossart sdw_intel_cleanup(ctx); 256d62a7d41SVinod Koul return NULL; 257d62a7d41SVinod Koul } 258d62a7d41SVinod Koul 2596d2c6669SPierre-Louis Bossart static int 2606d2c6669SPierre-Louis Bossart sdw_intel_startup_controller(struct sdw_intel_ctx *ctx) 2616d2c6669SPierre-Louis Bossart { 2626d2c6669SPierre-Louis Bossart struct acpi_device *adev; 2636d2c6669SPierre-Louis Bossart struct sdw_intel_link_res *link; 2646d2c6669SPierre-Louis Bossart u32 caps; 2656d2c6669SPierre-Louis Bossart u32 link_mask; 2666d2c6669SPierre-Louis Bossart int i; 2676d2c6669SPierre-Louis Bossart 2686d2c6669SPierre-Louis Bossart if (acpi_bus_get_device(ctx->handle, &adev)) 2696d2c6669SPierre-Louis Bossart return -EINVAL; 2706d2c6669SPierre-Louis Bossart 2716d2c6669SPierre-Louis Bossart /* Check SNDWLCAP.LCOUNT */ 2726d2c6669SPierre-Louis Bossart caps = ioread32(ctx->mmio_base + SDW_SHIM_BASE + SDW_SHIM_LCAP); 2736d2c6669SPierre-Louis Bossart caps &= GENMASK(2, 0); 2746d2c6669SPierre-Louis Bossart 2756d2c6669SPierre-Louis Bossart /* Check HW supported vs property value */ 2766d2c6669SPierre-Louis Bossart if (caps < ctx->count) { 2776d2c6669SPierre-Louis Bossart dev_err(&adev->dev, 2786d2c6669SPierre-Louis Bossart "BIOS master count is larger than hardware capabilities\n"); 2796d2c6669SPierre-Louis Bossart return -EINVAL; 2806d2c6669SPierre-Louis Bossart } 2816d2c6669SPierre-Louis Bossart 2826d2c6669SPierre-Louis Bossart if (!ctx->links) 2836d2c6669SPierre-Louis Bossart return -EINVAL; 2846d2c6669SPierre-Louis Bossart 2856d2c6669SPierre-Louis Bossart link = ctx->links; 2866d2c6669SPierre-Louis Bossart link_mask = ctx->link_mask; 2876d2c6669SPierre-Louis Bossart 2886d2c6669SPierre-Louis Bossart /* Startup SDW Master devices */ 2896d2c6669SPierre-Louis Bossart for (i = 0; i < ctx->count; i++, link++) { 2906d2c6669SPierre-Louis Bossart if (!(link_mask & BIT(i))) 2916d2c6669SPierre-Louis Bossart continue; 2926d2c6669SPierre-Louis Bossart 2936d2c6669SPierre-Louis Bossart intel_master_startup(link->pdev); 2946d2c6669SPierre-Louis Bossart } 2956d2c6669SPierre-Louis Bossart 2966d2c6669SPierre-Louis Bossart return 0; 2976d2c6669SPierre-Louis Bossart } 2986d2c6669SPierre-Louis Bossart 299d62a7d41SVinod Koul static acpi_status sdw_intel_acpi_cb(acpi_handle handle, u32 level, 300d62a7d41SVinod Koul void *cdata, void **return_value) 301d62a7d41SVinod Koul { 3026d2c6669SPierre-Louis Bossart struct sdw_intel_acpi_info *info = cdata; 303d62a7d41SVinod Koul struct acpi_device *adev; 3046f11586fSPierre-Louis Bossart acpi_status status; 3056f11586fSPierre-Louis Bossart u64 adr; 3066f11586fSPierre-Louis Bossart 3076f11586fSPierre-Louis Bossart status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr); 3086f11586fSPierre-Louis Bossart if (ACPI_FAILURE(status)) 3096f11586fSPierre-Louis Bossart return AE_OK; /* keep going */ 310d62a7d41SVinod Koul 311d62a7d41SVinod Koul if (acpi_bus_get_device(handle, &adev)) { 312e1c815f4SVinod Koul pr_err("%s: Couldn't find ACPI handle\n", __func__); 313d62a7d41SVinod Koul return AE_NOT_FOUND; 314d62a7d41SVinod Koul } 315d62a7d41SVinod Koul 3166d2c6669SPierre-Louis Bossart info->handle = handle; 3176f11586fSPierre-Louis Bossart 3186f11586fSPierre-Louis Bossart /* 3196f11586fSPierre-Louis Bossart * On some Intel platforms, multiple children of the HDAS 3206f11586fSPierre-Louis Bossart * device can be found, but only one of them is the SoundWire 3216f11586fSPierre-Louis Bossart * controller. The SNDW device is always exposed with 3226f11586fSPierre-Louis Bossart * Name(_ADR, 0x40000000), with bits 31..28 representing the 3236f11586fSPierre-Louis Bossart * SoundWire link so filter accordingly 3246f11586fSPierre-Louis Bossart */ 3256f11586fSPierre-Louis Bossart if ((adr & GENMASK(31, 28)) >> 28 != SDW_LINK_TYPE) 3266f11586fSPierre-Louis Bossart return AE_OK; /* keep going */ 3276f11586fSPierre-Louis Bossart 3286f11586fSPierre-Louis Bossart /* device found, stop namespace walk */ 3296f11586fSPierre-Louis Bossart return AE_CTRL_TERMINATE; 330d62a7d41SVinod Koul } 331d62a7d41SVinod Koul 332d62a7d41SVinod Koul /** 3336d2c6669SPierre-Louis Bossart * sdw_intel_acpi_scan() - SoundWire Intel init routine 334d62a7d41SVinod Koul * @parent_handle: ACPI parent handle 3356d2c6669SPierre-Louis Bossart * @info: description of what firmware/DSDT tables expose 336d62a7d41SVinod Koul * 3376d2c6669SPierre-Louis Bossart * This scans the namespace and queries firmware to figure out which 3386d2c6669SPierre-Louis Bossart * links to enable. A follow-up use of sdw_intel_probe() and 3396d2c6669SPierre-Louis Bossart * sdw_intel_startup() is required for creation of devices and bus 3406d2c6669SPierre-Louis Bossart * startup 341d62a7d41SVinod Koul */ 3426d2c6669SPierre-Louis Bossart int sdw_intel_acpi_scan(acpi_handle *parent_handle, 3436d2c6669SPierre-Louis Bossart struct sdw_intel_acpi_info *info) 344d62a7d41SVinod Koul { 345d62a7d41SVinod Koul acpi_status status; 346d62a7d41SVinod Koul 347d62a7d41SVinod Koul status = acpi_walk_namespace(ACPI_TYPE_DEVICE, 348d62a7d41SVinod Koul parent_handle, 1, 349d62a7d41SVinod Koul sdw_intel_acpi_cb, 3506d2c6669SPierre-Louis Bossart NULL, info, NULL); 351d62a7d41SVinod Koul if (ACPI_FAILURE(status)) 3526d2c6669SPierre-Louis Bossart return -ENODEV; 353d62a7d41SVinod Koul 3546d2c6669SPierre-Louis Bossart return sdw_intel_scan_controller(info); 355d62a7d41SVinod Koul } 3568459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_acpi_scan, SOUNDWIRE_INTEL_INIT); 357d62a7d41SVinod Koul 358d62a7d41SVinod Koul /** 3596d2c6669SPierre-Louis Bossart * sdw_intel_probe() - SoundWire Intel probe routine 3606d2c6669SPierre-Louis Bossart * @res: resource data 3616d2c6669SPierre-Louis Bossart * 3626d2c6669SPierre-Louis Bossart * This registers a platform device for each Master handled by the controller, 3636d2c6669SPierre-Louis Bossart * and SoundWire Master and Slave devices will be created by the platform 3646d2c6669SPierre-Louis Bossart * device probe. All the information necessary is stored in the context, and 3656d2c6669SPierre-Louis Bossart * the res argument pointer can be freed after this step. 3666d2c6669SPierre-Louis Bossart * This function will be called after sdw_intel_acpi_scan() by SOF probe. 3676d2c6669SPierre-Louis Bossart */ 3686d2c6669SPierre-Louis Bossart struct sdw_intel_ctx 3696d2c6669SPierre-Louis Bossart *sdw_intel_probe(struct sdw_intel_res *res) 3706d2c6669SPierre-Louis Bossart { 3716d2c6669SPierre-Louis Bossart return sdw_intel_probe_controller(res); 3726d2c6669SPierre-Louis Bossart } 3738459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_probe, SOUNDWIRE_INTEL_INIT); 3746d2c6669SPierre-Louis Bossart 3756d2c6669SPierre-Louis Bossart /** 3766d2c6669SPierre-Louis Bossart * sdw_intel_startup() - SoundWire Intel startup 3776d2c6669SPierre-Louis Bossart * @ctx: SoundWire context allocated in the probe 3786d2c6669SPierre-Louis Bossart * 3796d2c6669SPierre-Louis Bossart * Startup Intel SoundWire controller. This function will be called after 3806d2c6669SPierre-Louis Bossart * Intel Audio DSP is powered up. 3816d2c6669SPierre-Louis Bossart */ 3826d2c6669SPierre-Louis Bossart int sdw_intel_startup(struct sdw_intel_ctx *ctx) 3836d2c6669SPierre-Louis Bossart { 3846d2c6669SPierre-Louis Bossart return sdw_intel_startup_controller(ctx); 3856d2c6669SPierre-Louis Bossart } 3868459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_startup, SOUNDWIRE_INTEL_INIT); 3876d2c6669SPierre-Louis Bossart /** 388d62a7d41SVinod Koul * sdw_intel_exit() - SoundWire Intel exit 3896d2c6669SPierre-Louis Bossart * @ctx: SoundWire context allocated in the probe 390d62a7d41SVinod Koul * 391d62a7d41SVinod Koul * Delete the controller instances created and cleanup 392d62a7d41SVinod Koul */ 393f98f690fSPierre-Louis Bossart void sdw_intel_exit(struct sdw_intel_ctx *ctx) 394d62a7d41SVinod Koul { 3956d2c6669SPierre-Louis Bossart sdw_intel_cleanup(ctx); 396d62a7d41SVinod Koul } 3978459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_exit, SOUNDWIRE_INTEL_INIT); 398d62a7d41SVinod Koul 399d62a7d41SVinod Koul MODULE_LICENSE("Dual BSD/GPL"); 400d62a7d41SVinod Koul MODULE_DESCRIPTION("Intel Soundwire Init Library"); 401