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>
124a98a6b2SBard Liao #include <linux/interrupt.h>
133fc40449SVinod Koul #include <linux/io.h>
144abbd783SPaul Gortmaker #include <linux/module.h>
1529a269c6SPierre-Louis Bossart #include <linux/auxiliary_bus.h>
16ebf878edSPierre-Louis Bossart #include <linux/pm_runtime.h>
17d62a7d41SVinod Koul #include <linux/soundwire/sdw_intel.h>
18b6109dd6SPierre-Louis Bossart #include "cadence_master.h"
19d62a7d41SVinod Koul #include "intel.h"
207cbf00bdSPierre-Louis Bossart #include "intel_auxdevice.h"
21d62a7d41SVinod Koul
intel_link_dev_release(struct device * dev)2229a269c6SPierre-Louis Bossart static void intel_link_dev_release(struct device *dev)
2329a269c6SPierre-Louis Bossart {
2429a269c6SPierre-Louis Bossart struct auxiliary_device *auxdev = to_auxiliary_dev(dev);
2529a269c6SPierre-Louis Bossart struct sdw_intel_link_dev *ldev = auxiliary_dev_to_sdw_intel_link_dev(auxdev);
2629a269c6SPierre-Louis Bossart
2729a269c6SPierre-Louis Bossart kfree(ldev);
2829a269c6SPierre-Louis Bossart }
2929a269c6SPierre-Louis Bossart
3029a269c6SPierre-Louis Bossart /* alloc, init and add link devices */
intel_link_dev_register(struct sdw_intel_res * res,struct sdw_intel_ctx * ctx,struct fwnode_handle * fwnode,const char * name,int link_id)3129a269c6SPierre-Louis Bossart static struct sdw_intel_link_dev *intel_link_dev_register(struct sdw_intel_res *res,
3229a269c6SPierre-Louis Bossart struct sdw_intel_ctx *ctx,
3329a269c6SPierre-Louis Bossart struct fwnode_handle *fwnode,
3429a269c6SPierre-Louis Bossart const char *name,
3529a269c6SPierre-Louis Bossart int link_id)
3629a269c6SPierre-Louis Bossart {
3729a269c6SPierre-Louis Bossart struct sdw_intel_link_dev *ldev;
3829a269c6SPierre-Louis Bossart struct sdw_intel_link_res *link;
3929a269c6SPierre-Louis Bossart struct auxiliary_device *auxdev;
4029a269c6SPierre-Louis Bossart int ret;
4129a269c6SPierre-Louis Bossart
4229a269c6SPierre-Louis Bossart ldev = kzalloc(sizeof(*ldev), GFP_KERNEL);
4329a269c6SPierre-Louis Bossart if (!ldev)
4429a269c6SPierre-Louis Bossart return ERR_PTR(-ENOMEM);
4529a269c6SPierre-Louis Bossart
4629a269c6SPierre-Louis Bossart auxdev = &ldev->auxdev;
4729a269c6SPierre-Louis Bossart auxdev->name = name;
4829a269c6SPierre-Louis Bossart auxdev->dev.parent = res->parent;
4929a269c6SPierre-Louis Bossart auxdev->dev.fwnode = fwnode;
5029a269c6SPierre-Louis Bossart auxdev->dev.release = intel_link_dev_release;
5129a269c6SPierre-Louis Bossart
5229a269c6SPierre-Louis Bossart /* we don't use an IDA since we already have a link ID */
5329a269c6SPierre-Louis Bossart auxdev->id = link_id;
5429a269c6SPierre-Louis Bossart
5529a269c6SPierre-Louis Bossart /*
5629a269c6SPierre-Louis Bossart * keep a handle on the allocated memory, to be used in all other functions.
5729a269c6SPierre-Louis Bossart * Since the same pattern is used to skip links that are not enabled, there is
5829a269c6SPierre-Louis Bossart * no need to check if ctx->ldev[i] is NULL later on.
5929a269c6SPierre-Louis Bossart */
6029a269c6SPierre-Louis Bossart ctx->ldev[link_id] = ldev;
6129a269c6SPierre-Louis Bossart
6229a269c6SPierre-Louis Bossart /* Add link information used in the driver probe */
6329a269c6SPierre-Louis Bossart link = &ldev->link_res;
64b3ad31f3SPierre-Louis Bossart link->hw_ops = res->hw_ops;
6529a269c6SPierre-Louis Bossart link->mmio_base = res->mmio_base;
666ab915b9SPierre-Louis Bossart if (!res->ext) {
6729a269c6SPierre-Louis Bossart link->registers = res->mmio_base + SDW_LINK_BASE
6829a269c6SPierre-Louis Bossart + (SDW_LINK_SIZE * link_id);
69e40e0e11SPierre-Louis Bossart link->ip_offset = 0;
7060e9feb7SBard Liao link->shim = res->mmio_base + res->shim_base;
7160e9feb7SBard Liao link->alh = res->mmio_base + res->alh_base;
72*e52cae0bSPierre-Louis Bossart link->shim_lock = &ctx->shim_lock;
736ab915b9SPierre-Louis Bossart } else {
746ab915b9SPierre-Louis Bossart link->registers = res->mmio_base + SDW_IP_BASE(link_id);
75e40e0e11SPierre-Louis Bossart link->ip_offset = SDW_CADENCE_MCP_IP_OFFSET;
766ab915b9SPierre-Louis Bossart link->shim = res->mmio_base + SDW_SHIM2_GENERIC_BASE(link_id);
776ab915b9SPierre-Louis Bossart link->shim_vs = res->mmio_base + SDW_SHIM2_VS_BASE(link_id);
78*e52cae0bSPierre-Louis Bossart link->shim_lock = res->eml_lock;
796ab915b9SPierre-Louis Bossart }
8029a269c6SPierre-Louis Bossart
8129a269c6SPierre-Louis Bossart link->ops = res->ops;
8229a269c6SPierre-Louis Bossart link->dev = res->dev;
8329a269c6SPierre-Louis Bossart
8429a269c6SPierre-Louis Bossart link->clock_stop_quirks = res->clock_stop_quirks;
8529a269c6SPierre-Louis Bossart link->shim_mask = &ctx->shim_mask;
8629a269c6SPierre-Louis Bossart link->link_mask = ctx->link_mask;
8729a269c6SPierre-Louis Bossart
88881cf1e9SPierre-Louis Bossart link->hbus = res->hbus;
89881cf1e9SPierre-Louis Bossart
9029a269c6SPierre-Louis Bossart /* now follow the two-step init/add sequence */
9129a269c6SPierre-Louis Bossart ret = auxiliary_device_init(auxdev);
9229a269c6SPierre-Louis Bossart if (ret < 0) {
9329a269c6SPierre-Louis Bossart dev_err(res->parent, "failed to initialize link dev %s link_id %d\n",
9429a269c6SPierre-Louis Bossart name, link_id);
9529a269c6SPierre-Louis Bossart kfree(ldev);
9629a269c6SPierre-Louis Bossart return ERR_PTR(ret);
9729a269c6SPierre-Louis Bossart }
9829a269c6SPierre-Louis Bossart
9929a269c6SPierre-Louis Bossart ret = auxiliary_device_add(&ldev->auxdev);
10029a269c6SPierre-Louis Bossart if (ret < 0) {
10129a269c6SPierre-Louis Bossart dev_err(res->parent, "failed to add link dev %s link_id %d\n",
10229a269c6SPierre-Louis Bossart ldev->auxdev.name, link_id);
10329a269c6SPierre-Louis Bossart /* ldev will be freed with the put_device() and .release sequence */
10429a269c6SPierre-Louis Bossart auxiliary_device_uninit(&ldev->auxdev);
10529a269c6SPierre-Louis Bossart return ERR_PTR(ret);
10629a269c6SPierre-Louis Bossart }
10729a269c6SPierre-Louis Bossart
10829a269c6SPierre-Louis Bossart return ldev;
10929a269c6SPierre-Louis Bossart }
11029a269c6SPierre-Louis Bossart
intel_link_dev_unregister(struct sdw_intel_link_dev * ldev)11129a269c6SPierre-Louis Bossart static void intel_link_dev_unregister(struct sdw_intel_link_dev *ldev)
11229a269c6SPierre-Louis Bossart {
11329a269c6SPierre-Louis Bossart auxiliary_device_delete(&ldev->auxdev);
11429a269c6SPierre-Louis Bossart auxiliary_device_uninit(&ldev->auxdev);
11529a269c6SPierre-Louis Bossart }
11629a269c6SPierre-Louis Bossart
sdw_intel_cleanup(struct sdw_intel_ctx * ctx)1176d2c6669SPierre-Louis Bossart static int sdw_intel_cleanup(struct sdw_intel_ctx *ctx)
118d62a7d41SVinod Koul {
11929a269c6SPierre-Louis Bossart struct sdw_intel_link_dev *ldev;
1206d2c6669SPierre-Louis Bossart u32 link_mask;
121d62a7d41SVinod Koul int i;
122d62a7d41SVinod Koul
1236d2c6669SPierre-Louis Bossart link_mask = ctx->link_mask;
1246d2c6669SPierre-Louis Bossart
12529a269c6SPierre-Louis Bossart for (i = 0; i < ctx->count; i++) {
1266d2c6669SPierre-Louis Bossart if (!(link_mask & BIT(i)))
1276d2c6669SPierre-Louis Bossart continue;
1286d2c6669SPierre-Louis Bossart
12929a269c6SPierre-Louis Bossart ldev = ctx->ldev[i];
130ab996b29SPierre-Louis Bossart
13129a269c6SPierre-Louis Bossart pm_runtime_disable(&ldev->auxdev.dev);
13229a269c6SPierre-Louis Bossart if (!ldev->link_res.clock_stop_quirks)
13329a269c6SPierre-Louis Bossart pm_runtime_put_noidle(ldev->link_res.dev);
13429a269c6SPierre-Louis Bossart
13529a269c6SPierre-Louis Bossart intel_link_dev_unregister(ldev);
136ebf878edSPierre-Louis Bossart }
137d62a7d41SVinod Koul
138d62a7d41SVinod Koul return 0;
139d62a7d41SVinod Koul }
140d62a7d41SVinod Koul
sdw_intel_thread(int irq,void * dev_id)1414a98a6b2SBard Liao irqreturn_t sdw_intel_thread(int irq, void *dev_id)
1424a98a6b2SBard Liao {
1434a98a6b2SBard Liao struct sdw_intel_ctx *ctx = dev_id;
1444a98a6b2SBard Liao struct sdw_intel_link_res *link;
1454a98a6b2SBard Liao
1464a98a6b2SBard Liao list_for_each_entry(link, &ctx->link_list, list)
1474a98a6b2SBard Liao sdw_cdns_irq(irq, link->cdns);
1484a98a6b2SBard Liao
1494a98a6b2SBard Liao return IRQ_HANDLED;
1504a98a6b2SBard Liao }
1514a98a6b2SBard Liao EXPORT_SYMBOL_NS(sdw_intel_thread, SOUNDWIRE_INTEL_INIT);
1524a98a6b2SBard Liao
1536d2c6669SPierre-Louis Bossart static struct sdw_intel_ctx
sdw_intel_probe_controller(struct sdw_intel_res * res)1546d2c6669SPierre-Louis Bossart *sdw_intel_probe_controller(struct sdw_intel_res *res)
1556d2c6669SPierre-Louis Bossart {
1566d2c6669SPierre-Louis Bossart struct sdw_intel_link_res *link;
15729a269c6SPierre-Louis Bossart struct sdw_intel_link_dev *ldev;
1586d2c6669SPierre-Louis Bossart struct sdw_intel_ctx *ctx;
1596d2c6669SPierre-Louis Bossart struct acpi_device *adev;
160a8184403SBard Liao struct sdw_slave *slave;
161a8184403SBard Liao struct list_head *node;
162a8184403SBard Liao struct sdw_bus *bus;
1636d2c6669SPierre-Louis Bossart u32 link_mask;
164a8184403SBard Liao int num_slaves = 0;
1656d2c6669SPierre-Louis Bossart int count;
1666d2c6669SPierre-Louis Bossart int i;
1676d2c6669SPierre-Louis Bossart
1686d2c6669SPierre-Louis Bossart if (!res)
1696d2c6669SPierre-Louis Bossart return NULL;
1706d2c6669SPierre-Louis Bossart
1718733729eSRafael J. Wysocki adev = acpi_fetch_acpi_dev(res->handle);
1728733729eSRafael J. Wysocki if (!adev)
1736d2c6669SPierre-Louis Bossart return NULL;
1746d2c6669SPierre-Louis Bossart
1756d2c6669SPierre-Louis Bossart if (!res->count)
1766d2c6669SPierre-Louis Bossart return NULL;
1776d2c6669SPierre-Louis Bossart
1786d2c6669SPierre-Louis Bossart count = res->count;
179d62a7d41SVinod Koul dev_dbg(&adev->dev, "Creating %d SDW Link devices\n", count);
180d62a7d41SVinod Koul
18129a269c6SPierre-Louis Bossart /*
18229a269c6SPierre-Louis Bossart * we need to alloc/free memory manually and can't use devm:
18329a269c6SPierre-Louis Bossart * this routine may be called from a workqueue, and not from
18429a269c6SPierre-Louis Bossart * the parent .probe.
18529a269c6SPierre-Louis Bossart * If devm_ was used, the memory might never be freed on errors.
18629a269c6SPierre-Louis Bossart */
18729a269c6SPierre-Louis Bossart ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
188d62a7d41SVinod Koul if (!ctx)
189d62a7d41SVinod Koul return NULL;
190d62a7d41SVinod Koul
191d62a7d41SVinod Koul ctx->count = count;
192d62a7d41SVinod Koul
19329a269c6SPierre-Louis Bossart /*
19429a269c6SPierre-Louis Bossart * allocate the array of pointers. The link-specific data is allocated
19529a269c6SPierre-Louis Bossart * as part of the first loop below and released with the auxiliary_device_uninit().
19629a269c6SPierre-Louis Bossart * If some links are disabled, the link pointer will remain NULL. Given that the
19729a269c6SPierre-Louis Bossart * number of links is small, this is simpler than using a list to keep track of links.
19829a269c6SPierre-Louis Bossart */
19929a269c6SPierre-Louis Bossart ctx->ldev = kcalloc(ctx->count, sizeof(*ctx->ldev), GFP_KERNEL);
20029a269c6SPierre-Louis Bossart if (!ctx->ldev) {
20129a269c6SPierre-Louis Bossart kfree(ctx);
20229a269c6SPierre-Louis Bossart return NULL;
20329a269c6SPierre-Louis Bossart }
20429a269c6SPierre-Louis Bossart
2056d2c6669SPierre-Louis Bossart ctx->mmio_base = res->mmio_base;
20660e9feb7SBard Liao ctx->shim_base = res->shim_base;
20760e9feb7SBard Liao ctx->alh_base = res->alh_base;
2086d2c6669SPierre-Louis Bossart ctx->link_mask = res->link_mask;
2096d2c6669SPierre-Louis Bossart ctx->handle = res->handle;
2104a17c441SPierre-Louis Bossart mutex_init(&ctx->shim_lock);
2116d2c6669SPierre-Louis Bossart
2126d2c6669SPierre-Louis Bossart link_mask = ctx->link_mask;
213d62a7d41SVinod Koul
2144a98a6b2SBard Liao INIT_LIST_HEAD(&ctx->link_list);
2154a98a6b2SBard Liao
21629a269c6SPierre-Louis Bossart for (i = 0; i < count; i++) {
21729a269c6SPierre-Louis Bossart if (!(link_mask & BIT(i)))
21850302fc7SPierre-Louis Bossart continue;
21950302fc7SPierre-Louis Bossart
22029a269c6SPierre-Louis Bossart /*
22129a269c6SPierre-Louis Bossart * init and add a device for each link
22229a269c6SPierre-Louis Bossart *
22329a269c6SPierre-Louis Bossart * The name of the device will be soundwire_intel.link.[i],
22429a269c6SPierre-Louis Bossart * with the "soundwire_intel" module prefix automatically added
22529a269c6SPierre-Louis Bossart * by the auxiliary bus core.
22629a269c6SPierre-Louis Bossart */
22729a269c6SPierre-Louis Bossart ldev = intel_link_dev_register(res,
22829a269c6SPierre-Louis Bossart ctx,
22929a269c6SPierre-Louis Bossart acpi_fwnode_handle(adev),
23029a269c6SPierre-Louis Bossart "link",
23129a269c6SPierre-Louis Bossart i);
23229a269c6SPierre-Louis Bossart if (IS_ERR(ldev))
2336d2c6669SPierre-Louis Bossart goto err;
23429a269c6SPierre-Louis Bossart
23529a269c6SPierre-Louis Bossart link = &ldev->link_res;
2363edac08eSDavid E. Box link->cdns = auxiliary_get_drvdata(&ldev->auxdev);
2374a98a6b2SBard Liao
23814968dd3SBard Liao if (!link->cdns) {
23914968dd3SBard Liao dev_err(&adev->dev, "failed to get link->cdns\n");
24014968dd3SBard Liao /*
24114968dd3SBard Liao * 1 will be subtracted from i in the err label, but we need to call
24214968dd3SBard Liao * intel_link_dev_unregister for this ldev, so plus 1 now
24314968dd3SBard Liao */
24414968dd3SBard Liao i++;
24514968dd3SBard Liao goto err;
24614968dd3SBard Liao }
2474a98a6b2SBard Liao list_add_tail(&link->list, &ctx->link_list);
248a8184403SBard Liao bus = &link->cdns->bus;
249a8184403SBard Liao /* Calculate number of slaves */
250a8184403SBard Liao list_for_each(node, &bus->slaves)
251a8184403SBard Liao num_slaves++;
252a8184403SBard Liao }
253a8184403SBard Liao
25429a269c6SPierre-Louis Bossart ctx->ids = kcalloc(num_slaves, sizeof(*ctx->ids), GFP_KERNEL);
255a8184403SBard Liao if (!ctx->ids)
256a8184403SBard Liao goto err;
257a8184403SBard Liao
258a8184403SBard Liao ctx->num_slaves = num_slaves;
259a8184403SBard Liao i = 0;
260a8184403SBard Liao list_for_each_entry(link, &ctx->link_list, list) {
261a8184403SBard Liao bus = &link->cdns->bus;
262a8184403SBard Liao list_for_each_entry(slave, &bus->slaves, node) {
263a8184403SBard Liao ctx->ids[i].id = slave->id;
264a8184403SBard Liao ctx->ids[i].link_id = bus->link_id;
265a8184403SBard Liao i++;
266a8184403SBard Liao }
267d62a7d41SVinod Koul }
268d62a7d41SVinod Koul
269d62a7d41SVinod Koul return ctx;
270d62a7d41SVinod Koul
2716d2c6669SPierre-Louis Bossart err:
27229a269c6SPierre-Louis Bossart while (i--) {
27329a269c6SPierre-Louis Bossart if (!(link_mask & BIT(i)))
27429a269c6SPierre-Louis Bossart continue;
27529a269c6SPierre-Louis Bossart ldev = ctx->ldev[i];
27629a269c6SPierre-Louis Bossart intel_link_dev_unregister(ldev);
27729a269c6SPierre-Louis Bossart }
27829a269c6SPierre-Louis Bossart kfree(ctx->ldev);
27929a269c6SPierre-Louis Bossart kfree(ctx);
280d62a7d41SVinod Koul return NULL;
281d62a7d41SVinod Koul }
282d62a7d41SVinod Koul
2836d2c6669SPierre-Louis Bossart static int
sdw_intel_startup_controller(struct sdw_intel_ctx * ctx)2846d2c6669SPierre-Louis Bossart sdw_intel_startup_controller(struct sdw_intel_ctx *ctx)
2856d2c6669SPierre-Louis Bossart {
2868733729eSRafael J. Wysocki struct acpi_device *adev = acpi_fetch_acpi_dev(ctx->handle);
28729a269c6SPierre-Louis Bossart struct sdw_intel_link_dev *ldev;
2886d2c6669SPierre-Louis Bossart u32 link_mask;
2896d2c6669SPierre-Louis Bossart int i;
2906d2c6669SPierre-Louis Bossart
2918733729eSRafael J. Wysocki if (!adev)
2926d2c6669SPierre-Louis Bossart return -EINVAL;
2936d2c6669SPierre-Louis Bossart
29429a269c6SPierre-Louis Bossart if (!ctx->ldev)
2956d2c6669SPierre-Louis Bossart return -EINVAL;
2966d2c6669SPierre-Louis Bossart
2976d2c6669SPierre-Louis Bossart link_mask = ctx->link_mask;
2986d2c6669SPierre-Louis Bossart
2996d2c6669SPierre-Louis Bossart /* Startup SDW Master devices */
30029a269c6SPierre-Louis Bossart for (i = 0; i < ctx->count; i++) {
3016d2c6669SPierre-Louis Bossart if (!(link_mask & BIT(i)))
3026d2c6669SPierre-Louis Bossart continue;
3036d2c6669SPierre-Louis Bossart
30429a269c6SPierre-Louis Bossart ldev = ctx->ldev[i];
305ab996b29SPierre-Louis Bossart
30629a269c6SPierre-Louis Bossart intel_link_startup(&ldev->auxdev);
30729a269c6SPierre-Louis Bossart
30829a269c6SPierre-Louis Bossart if (!ldev->link_res.clock_stop_quirks) {
309ab996b29SPierre-Louis Bossart /*
310ab996b29SPierre-Louis Bossart * we need to prevent the parent PCI device
311ab996b29SPierre-Louis Bossart * from entering pm_runtime suspend, so that
312ab996b29SPierre-Louis Bossart * power rails to the SoundWire IP are not
313ab996b29SPierre-Louis Bossart * turned off.
314ab996b29SPierre-Louis Bossart */
31529a269c6SPierre-Louis Bossart pm_runtime_get_noresume(ldev->link_res.dev);
316ab996b29SPierre-Louis Bossart }
3176d2c6669SPierre-Louis Bossart }
3186d2c6669SPierre-Louis Bossart
3196d2c6669SPierre-Louis Bossart return 0;
3206d2c6669SPierre-Louis Bossart }
3216d2c6669SPierre-Louis Bossart
322d62a7d41SVinod Koul /**
3236d2c6669SPierre-Louis Bossart * sdw_intel_probe() - SoundWire Intel probe routine
3246d2c6669SPierre-Louis Bossart * @res: resource data
3256d2c6669SPierre-Louis Bossart *
32629a269c6SPierre-Louis Bossart * This registers an auxiliary device for each Master handled by the controller,
32729a269c6SPierre-Louis Bossart * and SoundWire Master and Slave devices will be created by the auxiliary
3286d2c6669SPierre-Louis Bossart * device probe. All the information necessary is stored in the context, and
3296d2c6669SPierre-Louis Bossart * the res argument pointer can be freed after this step.
3306d2c6669SPierre-Louis Bossart * This function will be called after sdw_intel_acpi_scan() by SOF probe.
3316d2c6669SPierre-Louis Bossart */
3326d2c6669SPierre-Louis Bossart struct sdw_intel_ctx
sdw_intel_probe(struct sdw_intel_res * res)3336d2c6669SPierre-Louis Bossart *sdw_intel_probe(struct sdw_intel_res *res)
3346d2c6669SPierre-Louis Bossart {
3356d2c6669SPierre-Louis Bossart return sdw_intel_probe_controller(res);
3366d2c6669SPierre-Louis Bossart }
3378459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_probe, SOUNDWIRE_INTEL_INIT);
3386d2c6669SPierre-Louis Bossart
3396d2c6669SPierre-Louis Bossart /**
3406d2c6669SPierre-Louis Bossart * sdw_intel_startup() - SoundWire Intel startup
3416d2c6669SPierre-Louis Bossart * @ctx: SoundWire context allocated in the probe
3426d2c6669SPierre-Louis Bossart *
3436d2c6669SPierre-Louis Bossart * Startup Intel SoundWire controller. This function will be called after
3446d2c6669SPierre-Louis Bossart * Intel Audio DSP is powered up.
3456d2c6669SPierre-Louis Bossart */
sdw_intel_startup(struct sdw_intel_ctx * ctx)3466d2c6669SPierre-Louis Bossart int sdw_intel_startup(struct sdw_intel_ctx *ctx)
3476d2c6669SPierre-Louis Bossart {
3486d2c6669SPierre-Louis Bossart return sdw_intel_startup_controller(ctx);
3496d2c6669SPierre-Louis Bossart }
3508459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_startup, SOUNDWIRE_INTEL_INIT);
3516d2c6669SPierre-Louis Bossart /**
352d62a7d41SVinod Koul * sdw_intel_exit() - SoundWire Intel exit
3536d2c6669SPierre-Louis Bossart * @ctx: SoundWire context allocated in the probe
354d62a7d41SVinod Koul *
355d62a7d41SVinod Koul * Delete the controller instances created and cleanup
356d62a7d41SVinod Koul */
sdw_intel_exit(struct sdw_intel_ctx * ctx)357f98f690fSPierre-Louis Bossart void sdw_intel_exit(struct sdw_intel_ctx *ctx)
358d62a7d41SVinod Koul {
3596d2c6669SPierre-Louis Bossart sdw_intel_cleanup(ctx);
36029a269c6SPierre-Louis Bossart kfree(ctx->ids);
36129a269c6SPierre-Louis Bossart kfree(ctx->ldev);
36229a269c6SPierre-Louis Bossart kfree(ctx);
363d62a7d41SVinod Koul }
3648459cea7SPierre-Louis Bossart EXPORT_SYMBOL_NS(sdw_intel_exit, SOUNDWIRE_INTEL_INIT);
365d62a7d41SVinod Koul
sdw_intel_process_wakeen_event(struct sdw_intel_ctx * ctx)366ab2c9132SRander Wang void sdw_intel_process_wakeen_event(struct sdw_intel_ctx *ctx)
367ab2c9132SRander Wang {
36829a269c6SPierre-Louis Bossart struct sdw_intel_link_dev *ldev;
369ab2c9132SRander Wang u32 link_mask;
370ab2c9132SRander Wang int i;
371ab2c9132SRander Wang
37229a269c6SPierre-Louis Bossart if (!ctx->ldev)
373ab2c9132SRander Wang return;
374ab2c9132SRander Wang
375ab2c9132SRander Wang link_mask = ctx->link_mask;
376ab2c9132SRander Wang
377ab2c9132SRander Wang /* Startup SDW Master devices */
37829a269c6SPierre-Louis Bossart for (i = 0; i < ctx->count; i++) {
379ab2c9132SRander Wang if (!(link_mask & BIT(i)))
380ab2c9132SRander Wang continue;
381ab2c9132SRander Wang
38229a269c6SPierre-Louis Bossart ldev = ctx->ldev[i];
38329a269c6SPierre-Louis Bossart
38429a269c6SPierre-Louis Bossart intel_link_process_wakeen_event(&ldev->auxdev);
385ab2c9132SRander Wang }
386ab2c9132SRander Wang }
387ab2c9132SRander Wang EXPORT_SYMBOL_NS(sdw_intel_process_wakeen_event, SOUNDWIRE_INTEL_INIT);
388ab2c9132SRander Wang
389d62a7d41SVinod Koul MODULE_LICENSE("Dual BSD/GPL");
390d62a7d41SVinod Koul MODULE_DESCRIPTION("Intel Soundwire Init Library");
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