static int sst_acpi_probe(struct platform_device *pdev)
{
const struct acpi_device_id *id;
struct device *dev = &pdev->dev;
struct sst_acpi_priv *sst_acpi;
struct sst_pdata *sst_pdata;
struct sst_acpi_mach *mach;
struct sst_acpi_desc *desc;
struct resource *mmio;
int ret = 0;
sst_acpi = devm_kzalloc(dev, sizeof(*sst_acpi), GFP_KERNEL);
if (sst_acpi == NULL)
return -ENOMEM;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
desc = (struct sst_acpi_desc *)id->driver_data;
mach = sst_acpi_find_machine(desc->machines);
if (mach == NULL) {
dev_err(dev, "No matching ASoC machine driver found\n");
return -ENODEV;
}
sst_pdata = &sst_acpi->sst_pdata;
sst_pdata->id = desc->sst_id;
sst_acpi->desc = desc;
sst_acpi->mach = mach;
if (desc->resindex_dma_base >= 0) {
sst_pdata->dma_engine = desc->dma_engine;
sst_pdata->dma_base = desc->resindex_dma_base;
sst_pdata->dma_size = desc->dma_size;
}
if (desc->irqindex_host_ipc >= 0)
sst_pdata->irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
if (desc->resindex_lpe_base >= 0) {
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_lpe_base);
if (mmio) {
sst_pdata->lpe_base = mmio->start;
sst_pdata->lpe_size = resource_size(mmio);
}
}
if (desc->resindex_pcicfg_base >= 0) {
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_pcicfg_base);
if (mmio) {
sst_pdata->pcicfg_base = mmio->start;
sst_pdata->pcicfg_size = resource_size(mmio);
}
}
if (desc->resindex_fw_base >= 0) {
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_fw_base);
if (mmio) {
sst_pdata->fw_base = mmio->start;
sst_pdata->fw_size = resource_size(mmio);
}
}
platform_set_drvdata(pdev, sst_acpi);
/* register machine driver */
sst_acpi->pdev_mach =
platform_device_register_data(dev, mach->drv_name, -1,
sst_pdata, sizeof(*sst_pdata));
if (IS_ERR(sst_acpi->pdev_mach))
return PTR_ERR(sst_acpi->pdev_mach);
/* continue SST probing after firmware is loaded */
ret = request_firmware_nowait(THIS_MODULE, true, mach->fw_filename,
dev, GFP_KERNEL, pdev, sst_acpi_fw_cb);
if (ret)
platform_device_unregister(sst_acpi->pdev_mach);
return ret;
}
static int sst_acpi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int ret = 0;
struct intel_sst_drv *ctx;
const struct acpi_device_id *id;
struct sst_acpi_mach *mach;
struct platform_device *mdev;
struct platform_device *plat_dev;
struct sst_platform_info *pdata;
unsigned int dev_id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
dev_dbg(dev, "for %s", id->id);
mach = (struct sst_acpi_mach *)id->driver_data;
mach = sst_acpi_find_machine(mach);
if (mach == NULL) {
dev_err(dev, "No matching machine driver found\n");
return -ENODEV;
}
pdata = mach->pdata;
ret = kstrtouint(id->id, 16, &dev_id);
if (ret < 0) {
dev_err(dev, "Unique device id conversion error: %d\n", ret);
return ret;
}
dev_dbg(dev, "ACPI device id: %x\n", dev_id);
plat_dev = platform_device_register_data(dev, pdata->platform, -1,
NULL, 0);
if (IS_ERR(plat_dev)) {
dev_err(dev, "Failed to create machine device: %s\n",
pdata->platform);
return PTR_ERR(plat_dev);
}
/*
* Create platform device for sst machine driver,
* pass machine info as pdata
*/
mdev = platform_device_register_data(dev, mach->drv_name, -1,
(const void *)mach, sizeof(*mach));
if (IS_ERR(mdev)) {
dev_err(dev, "Failed to create machine device: %s\n",
mach->drv_name);
return PTR_ERR(mdev);
}
ret = sst_alloc_drv_context(&ctx, dev, dev_id);
if (ret < 0)
return ret;
/* Fill sst platform data */
ctx->pdata = pdata;
strcpy(ctx->firmware_name, mach->fw_filename);
ret = sst_platform_get_resources(ctx);
if (ret)
return ret;
ret = sst_context_init(ctx);
if (ret < 0)
return ret;
/* need to save shim registers in BYT */
ctx->shim_regs64 = devm_kzalloc(ctx->dev, sizeof(*ctx->shim_regs64),
GFP_KERNEL);
if (!ctx->shim_regs64) {
ret = -ENOMEM;
goto do_sst_cleanup;
}
sst_configure_runtime_pm(ctx);
platform_set_drvdata(pdev, ctx);
return ret;
do_sst_cleanup:
sst_context_cleanup(ctx);
platform_set_drvdata(pdev, NULL);
dev_err(ctx->dev, "failed with %d\n", ret);
return ret;
}
