v4.19.13 snapshot.
diff --git a/sound/soc/intel/common/sst-acpi.c b/sound/soc/intel/common/sst-acpi.c
new file mode 100644
index 0000000..cf6fbbd
--- /dev/null
+++ b/sound/soc/intel/common/sst-acpi.c
@@ -0,0 +1,244 @@
+/*
+ * Intel SST loader on ACPI systems
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "sst-dsp.h"
+#include <sound/soc-acpi.h>
+#include <sound/soc-acpi-intel-match.h>
+
+#define SST_LPT_DSP_DMA_ADDR_OFFSET 0x0F0000
+#define SST_WPT_DSP_DMA_ADDR_OFFSET 0x0FE000
+#define SST_LPT_DSP_DMA_SIZE (1024 - 1)
+
+/* Descriptor for setting up SST platform data */
+struct sst_acpi_desc {
+ const char *drv_name;
+ struct snd_soc_acpi_mach *machines;
+ /* Platform resource indexes. Must set to -1 if not used */
+ int resindex_lpe_base;
+ int resindex_pcicfg_base;
+ int resindex_fw_base;
+ int irqindex_host_ipc;
+ int resindex_dma_base;
+ /* Unique number identifying the SST core on platform */
+ int sst_id;
+ /* DMA only valid when resindex_dma_base != -1*/
+ int dma_engine;
+ int dma_size;
+};
+
+struct sst_acpi_priv {
+ struct platform_device *pdev_mach;
+ struct platform_device *pdev_pcm;
+ struct sst_pdata sst_pdata;
+ struct sst_acpi_desc *desc;
+ struct snd_soc_acpi_mach *mach;
+};
+
+static void sst_acpi_fw_cb(const struct firmware *fw, void *context)
+{
+ struct platform_device *pdev = context;
+ struct device *dev = &pdev->dev;
+ struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
+ struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
+ struct sst_acpi_desc *desc = sst_acpi->desc;
+ struct snd_soc_acpi_mach *mach = sst_acpi->mach;
+
+ sst_pdata->fw = fw;
+ if (!fw) {
+ dev_err(dev, "Cannot load firmware %s\n", mach->fw_filename);
+ return;
+ }
+
+ /* register PCM and DAI driver */
+ sst_acpi->pdev_pcm =
+ platform_device_register_data(dev, desc->drv_name, -1,
+ sst_pdata, sizeof(*sst_pdata));
+ if (IS_ERR(sst_acpi->pdev_pcm)) {
+ dev_err(dev, "Cannot register device %s. Error %d\n",
+ desc->drv_name, (int)PTR_ERR(sst_acpi->pdev_pcm));
+ }
+
+ return;
+}
+
+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 snd_soc_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 = snd_soc_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_pdata->dma_dev = dev;
+ sst_acpi->desc = desc;
+ sst_acpi->mach = mach;
+
+ sst_pdata->resindex_dma_base = desc->resindex_dma_base;
+ 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_remove(struct platform_device *pdev)
+{
+ struct sst_acpi_priv *sst_acpi = platform_get_drvdata(pdev);
+ struct sst_pdata *sst_pdata = &sst_acpi->sst_pdata;
+
+ platform_device_unregister(sst_acpi->pdev_mach);
+ if (!IS_ERR_OR_NULL(sst_acpi->pdev_pcm))
+ platform_device_unregister(sst_acpi->pdev_pcm);
+ release_firmware(sst_pdata->fw);
+
+ return 0;
+}
+
+static struct sst_acpi_desc sst_acpi_haswell_desc = {
+ .drv_name = "haswell-pcm-audio",
+ .machines = snd_soc_acpi_intel_haswell_machines,
+ .resindex_lpe_base = 0,
+ .resindex_pcicfg_base = 1,
+ .resindex_fw_base = -1,
+ .irqindex_host_ipc = 0,
+ .sst_id = SST_DEV_ID_LYNX_POINT,
+ .dma_engine = SST_DMA_TYPE_DW,
+ .resindex_dma_base = SST_LPT_DSP_DMA_ADDR_OFFSET,
+ .dma_size = SST_LPT_DSP_DMA_SIZE,
+};
+
+static struct sst_acpi_desc sst_acpi_broadwell_desc = {
+ .drv_name = "haswell-pcm-audio",
+ .machines = snd_soc_acpi_intel_broadwell_machines,
+ .resindex_lpe_base = 0,
+ .resindex_pcicfg_base = 1,
+ .resindex_fw_base = -1,
+ .irqindex_host_ipc = 0,
+ .sst_id = SST_DEV_ID_WILDCAT_POINT,
+ .dma_engine = SST_DMA_TYPE_DW,
+ .resindex_dma_base = SST_WPT_DSP_DMA_ADDR_OFFSET,
+ .dma_size = SST_LPT_DSP_DMA_SIZE,
+};
+
+#if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
+static struct sst_acpi_desc sst_acpi_baytrail_desc = {
+ .drv_name = "baytrail-pcm-audio",
+ .machines = snd_soc_acpi_intel_baytrail_legacy_machines,
+ .resindex_lpe_base = 0,
+ .resindex_pcicfg_base = 1,
+ .resindex_fw_base = 2,
+ .irqindex_host_ipc = 5,
+ .sst_id = SST_DEV_ID_BYT,
+ .resindex_dma_base = -1,
+};
+#endif
+
+static const struct acpi_device_id sst_acpi_match[] = {
+ { "INT33C8", (unsigned long)&sst_acpi_haswell_desc },
+ { "INT3438", (unsigned long)&sst_acpi_broadwell_desc },
+#if !IS_ENABLED(CONFIG_SND_SST_IPC_ACPI)
+ { "80860F28", (unsigned long)&sst_acpi_baytrail_desc },
+#endif
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, sst_acpi_match);
+
+static struct platform_driver sst_acpi_driver = {
+ .probe = sst_acpi_probe,
+ .remove = sst_acpi_remove,
+ .driver = {
+ .name = "sst-acpi",
+ .acpi_match_table = ACPI_PTR(sst_acpi_match),
+ },
+};
+module_platform_driver(sst_acpi_driver);
+
+MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@linux.intel.com>");
+MODULE_DESCRIPTION("Intel SST loader on ACPI systems");
+MODULE_LICENSE("GPL v2");