[mirror_ubuntu-focal-kernel.git] / sound / soc / intel / atom / sst / sst_acpi.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * sst_acpi.c - SST (LPE) driver init file for ACPI enumeration.
 *
 * Copyright (c) 2013, Intel Corporation.
 *
 *  Authors:	Ramesh Babu K V <Ramesh.Babu@intel.com>
 *  Authors:	Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
 */

#include <linux/module.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/firmware.h>
#include <linux/pm_runtime.h>
#include <linux/pm_qos.h>
#include <linux/dmi.h>
#include <linux/acpi.h>
#include <asm/platform_sst_audio.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/compress_driver.h>
#include <acpi/acbuffer.h>
#include <acpi/platform/acenv.h>
#include <acpi/platform/aclinux.h>
#include <acpi/actypes.h>
#include <acpi/acpi_bus.h>
#include <sound/soc-acpi.h>
#include <sound/soc-acpi-intel-match.h>
#include "../sst-mfld-platform.h"
#include "../../common/sst-dsp.h"
#include "../../common/soc-intel-quirks.h"
#include "sst.h"

/* LPE viewpoint addresses */
#define SST_BYT_IRAM_PHY_START	0xff2c0000
#define SST_BYT_IRAM_PHY_END	0xff2d4000
#define SST_BYT_DRAM_PHY_START	0xff300000
#define SST_BYT_DRAM_PHY_END	0xff320000
#define SST_BYT_IMR_VIRT_START	0xc0000000 /* virtual addr in LPE */
#define SST_BYT_IMR_VIRT_END	0xc01fffff
#define SST_BYT_SHIM_PHY_ADDR	0xff340000
#define SST_BYT_MBOX_PHY_ADDR	0xff344000
#define SST_BYT_DMA0_PHY_ADDR	0xff298000
#define SST_BYT_DMA1_PHY_ADDR	0xff29c000
#define SST_BYT_SSP0_PHY_ADDR	0xff2a0000
#define SST_BYT_SSP2_PHY_ADDR	0xff2a2000

#define BYT_FW_MOD_TABLE_OFFSET	0x80000
#define BYT_FW_MOD_TABLE_SIZE	0x100
#define BYT_FW_MOD_OFFSET	(BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE)

static const struct sst_info byt_fwparse_info = {
	.use_elf	= false,
	.max_streams	= 25,
	.iram_start	= SST_BYT_IRAM_PHY_START,
	.iram_end	= SST_BYT_IRAM_PHY_END,
	.iram_use	= true,
	.dram_start	= SST_BYT_DRAM_PHY_START,
	.dram_end	= SST_BYT_DRAM_PHY_END,
	.dram_use	= true,
	.imr_start	= SST_BYT_IMR_VIRT_START,
	.imr_end	= SST_BYT_IMR_VIRT_END,
	.imr_use	= true,
	.mailbox_start	= SST_BYT_MBOX_PHY_ADDR,
	.num_probes	= 0,
	.lpe_viewpt_rqd  = true,
};

static const struct sst_ipc_info byt_ipc_info = {
	.ipc_offset = 0,
	.mbox_recv_off = 0x400,
};

static const struct sst_lib_dnld_info  byt_lib_dnld_info = {
	.mod_base           = SST_BYT_IMR_VIRT_START,
	.mod_end            = SST_BYT_IMR_VIRT_END,
	.mod_table_offset   = BYT_FW_MOD_TABLE_OFFSET,
	.mod_table_size     = BYT_FW_MOD_TABLE_SIZE,
	.mod_ddr_dnld       = false,
};

static const struct sst_res_info byt_rvp_res_info = {
	.shim_offset = 0x140000,
	.shim_size = 0x000100,
	.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
	.ssp0_offset = 0xa0000,
	.ssp0_size = 0x1000,
	.dma0_offset = 0x98000,
	.dma0_size = 0x4000,
	.dma1_offset = 0x9c000,
	.dma1_size = 0x4000,
	.iram_offset = 0x0c0000,
	.iram_size = 0x14000,
	.dram_offset = 0x100000,
	.dram_size = 0x28000,
	.mbox_offset = 0x144000,
	.mbox_size = 0x1000,
	.acpi_lpe_res_index = 0,
	.acpi_ddr_index = 2,
	.acpi_ipc_irq_index = 5,
};

/* BYTCR has different BIOS from BYT */
static const struct sst_res_info bytcr_res_info = {
	.shim_offset = 0x140000,
	.shim_size = 0x000100,
	.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
	.ssp0_offset = 0xa0000,
	.ssp0_size = 0x1000,
	.dma0_offset = 0x98000,
	.dma0_size = 0x4000,
	.dma1_offset = 0x9c000,
	.dma1_size = 0x4000,
	.iram_offset = 0x0c0000,
	.iram_size = 0x14000,
	.dram_offset = 0x100000,
	.dram_size = 0x28000,
	.mbox_offset = 0x144000,
	.mbox_size = 0x1000,
	.acpi_lpe_res_index = 0,
	.acpi_ddr_index = 2,
	.acpi_ipc_irq_index = 0
};

static struct sst_platform_info byt_rvp_platform_data = {
	.probe_data = &byt_fwparse_info,
	.ipc_info = &byt_ipc_info,
	.lib_info = &byt_lib_dnld_info,
	.res_info = &byt_rvp_res_info,
	.platform = "sst-mfld-platform",
	.streams_lost_on_suspend = true,
};

/* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail,
 * so pdata is same as Baytrail, minus the streams_lost_on_suspend quirk.
 */
static struct sst_platform_info chv_platform_data = {
	.probe_data = &byt_fwparse_info,
	.ipc_info = &byt_ipc_info,
	.lib_info = &byt_lib_dnld_info,
	.res_info = &byt_rvp_res_info,
	.platform = "sst-mfld-platform",
};

static int sst_platform_get_resources(struct intel_sst_drv *ctx)
{
	struct resource *rsrc;
	struct platform_device *pdev = to_platform_device(ctx->dev);

	/* All ACPI resource request here */
	/* Get Shim addr */
	rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
					ctx->pdata->res_info->acpi_lpe_res_index);
	if (!rsrc) {
		dev_err(ctx->dev, "Invalid SHIM base from IFWI\n");
		return -EIO;
	}
	dev_info(ctx->dev, "LPE base: %#x size:%#x", (unsigned int) rsrc->start,
					(unsigned int)resource_size(rsrc));

	ctx->iram_base = rsrc->start + ctx->pdata->res_info->iram_offset;
	ctx->iram_end =  ctx->iram_base + ctx->pdata->res_info->iram_size - 1;
	dev_info(ctx->dev, "IRAM base: %#x", ctx->iram_base);
	ctx->iram = devm_ioremap_nocache(ctx->dev, ctx->iram_base,
					 ctx->pdata->res_info->iram_size);
	if (!ctx->iram) {
		dev_err(ctx->dev, "unable to map IRAM\n");
		return -EIO;
	}

	ctx->dram_base = rsrc->start + ctx->pdata->res_info->dram_offset;
	ctx->dram_end = ctx->dram_base + ctx->pdata->res_info->dram_size - 1;
	dev_info(ctx->dev, "DRAM base: %#x", ctx->dram_base);
	ctx->dram = devm_ioremap_nocache(ctx->dev, ctx->dram_base,
					 ctx->pdata->res_info->dram_size);
	if (!ctx->dram) {
		dev_err(ctx->dev, "unable to map DRAM\n");
		return -EIO;
	}

	ctx->shim_phy_add = rsrc->start + ctx->pdata->res_info->shim_offset;
	dev_info(ctx->dev, "SHIM base: %#x", ctx->shim_phy_add);
	ctx->shim = devm_ioremap_nocache(ctx->dev, ctx->shim_phy_add,
					ctx->pdata->res_info->shim_size);
	if (!ctx->shim) {
		dev_err(ctx->dev, "unable to map SHIM\n");
		return -EIO;
	}

	/* reassign physical address to LPE viewpoint address */
	ctx->shim_phy_add = ctx->pdata->res_info->shim_phy_addr;

	/* Get mailbox addr */
	ctx->mailbox_add = rsrc->start + ctx->pdata->res_info->mbox_offset;
	dev_info(ctx->dev, "Mailbox base: %#x", ctx->mailbox_add);
	ctx->mailbox = devm_ioremap_nocache(ctx->dev, ctx->mailbox_add,
					    ctx->pdata->res_info->mbox_size);
	if (!ctx->mailbox) {
		dev_err(ctx->dev, "unable to map mailbox\n");
		return -EIO;
	}

	/* reassign physical address to LPE viewpoint address */
	ctx->mailbox_add = ctx->info.mailbox_start;

	rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
					ctx->pdata->res_info->acpi_ddr_index);
	if (!rsrc) {
		dev_err(ctx->dev, "Invalid DDR base from IFWI\n");
		return -EIO;
	}
	ctx->ddr_base = rsrc->start;
	ctx->ddr_end = rsrc->end;
	dev_info(ctx->dev, "DDR base: %#x", ctx->ddr_base);
	ctx->ddr = devm_ioremap_nocache(ctx->dev, ctx->ddr_base,
					resource_size(rsrc));
	if (!ctx->ddr) {
		dev_err(ctx->dev, "unable to map DDR\n");
		return -EIO;
	}

	/* Find the IRQ */
	ctx->irq_num = platform_get_irq(pdev,
				ctx->pdata->res_info->acpi_ipc_irq_index);
	if (ctx->irq_num <= 0)
		return ctx->irq_num < 0 ? ctx->irq_num : -EIO;

	return 0;
}

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 snd_soc_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\n", id->id);

	mach = (struct snd_soc_acpi_mach *)id->driver_data;
	mach = snd_soc_acpi_find_machine(mach);
	if (mach == NULL) {
		dev_err(dev, "No matching machine driver found\n");
		return -ENODEV;
	}

	if (soc_intel_is_byt())
		mach->pdata = &byt_rvp_platform_data;
	else
		mach->pdata = &chv_platform_data;
	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);

	ret = sst_alloc_drv_context(&ctx, dev, dev_id);
	if (ret < 0)
		return ret;

	if (soc_intel_is_byt_cr(pdev)) {
		/* override resource info */
		byt_rvp_platform_data.res_info = &bytcr_res_info;
	}

	/* update machine parameters */
	mach->mach_params.acpi_ipc_irq_index =
		pdata->res_info->acpi_ipc_irq_index;

	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);
	}

	/* 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;

	sst_configure_runtime_pm(ctx);
	platform_set_drvdata(pdev, ctx);
	return ret;
}

/**
* intel_sst_remove - remove function
*
* @pdev:	platform device structure
*
* This function is called by OS when a device is unloaded
* This frees the interrupt etc
*/
static int sst_acpi_remove(struct platform_device *pdev)
{
	struct intel_sst_drv *ctx;

	ctx = platform_get_drvdata(pdev);
	sst_context_cleanup(ctx);
	platform_set_drvdata(pdev, NULL);
	return 0;
}

static const struct acpi_device_id sst_acpi_ids[] = {
	{ "80860F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
	{ "808622A8", (unsigned long)&snd_soc_acpi_intel_cherrytrail_machines},
	{ },
};

MODULE_DEVICE_TABLE(acpi, sst_acpi_ids);

static struct platform_driver sst_acpi_driver = {
	.driver = {
		.name			= "intel_sst_acpi",
		.acpi_match_table	= ACPI_PTR(sst_acpi_ids),
		.pm			= &intel_sst_pm,
	},
	.probe	= sst_acpi_probe,
	.remove	= sst_acpi_remove,
};

module_platform_driver(sst_acpi_driver);

MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver");
MODULE_AUTHOR("Ramesh Babu K V");
MODULE_AUTHOR("Omair Mohammed Abdullah");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("sst");
Commit	Line	Data
2025cf9e	1	// SPDX-License-Identifier: GPL-2.0-only
336cfbb0 VK	2	/*
	3	* sst_acpi.c - SST (LPE) driver init file for ACPI enumeration.
	4	*
	5	* Copyright (c) 2013, Intel Corporation.
	6	*
	7	* Authors: Ramesh Babu K V <Ramesh.Babu@intel.com>
	8	* Authors: Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
336cfbb0 VK	9	*/
	10
	11	#include <linux/module.h>
	12	#include <linux/fs.h>
	13	#include <linux/interrupt.h>
	14	#include <linux/slab.h>
	15	#include <linux/io.h>
336cfbb0 VK	16	#include <linux/platform_device.h>
	17	#include <linux/firmware.h>
	18	#include <linux/pm_runtime.h>
	19	#include <linux/pm_qos.h>
73a33f6f	20	#include <linux/dmi.h>
336cfbb0 VK	21	#include <linux/acpi.h>
	22	#include <asm/platform_sst_audio.h>
	23	#include <sound/core.h>
	24	#include <sound/soc.h>
	25	#include <sound/compress_driver.h>
	26	#include <acpi/acbuffer.h>
	27	#include <acpi/platform/acenv.h>
	28	#include <acpi/platform/aclinux.h>
	29	#include <acpi/actypes.h>
	30	#include <acpi/acpi_bus.h>
7feb2f78	31	#include <sound/soc-acpi.h>
60046406	32	#include <sound/soc-acpi-intel-match.h>
336cfbb0	33	#include "../sst-mfld-platform.h"
b97169da	34	#include "../../common/sst-dsp.h"
536cfd2f	35	#include "../../common/soc-intel-quirks.h"
336cfbb0 VK	36	#include "sst.h"
336cfbb0 VK	37
336cfbb0 VK	38	/* LPE viewpoint addresses */
	39	#define SST_BYT_IRAM_PHY_START 0xff2c0000
	40	#define SST_BYT_IRAM_PHY_END 0xff2d4000
	41	#define SST_BYT_DRAM_PHY_START 0xff300000
	42	#define SST_BYT_DRAM_PHY_END 0xff320000
	43	#define SST_BYT_IMR_VIRT_START 0xc0000000 /* virtual addr in LPE */
	44	#define SST_BYT_IMR_VIRT_END 0xc01fffff
	45	#define SST_BYT_SHIM_PHY_ADDR 0xff340000
	46	#define SST_BYT_MBOX_PHY_ADDR 0xff344000
	47	#define SST_BYT_DMA0_PHY_ADDR 0xff298000
	48	#define SST_BYT_DMA1_PHY_ADDR 0xff29c000
	49	#define SST_BYT_SSP0_PHY_ADDR 0xff2a0000
	50	#define SST_BYT_SSP2_PHY_ADDR 0xff2a2000
	51
	52	#define BYT_FW_MOD_TABLE_OFFSET 0x80000
	53	#define BYT_FW_MOD_TABLE_SIZE 0x100
	54	#define BYT_FW_MOD_OFFSET (BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE)
	55
	56	static const struct sst_info byt_fwparse_info = {
	57	.use_elf = false,
	58	.max_streams = 25,
	59	.iram_start = SST_BYT_IRAM_PHY_START,
	60	.iram_end = SST_BYT_IRAM_PHY_END,
	61	.iram_use = true,
	62	.dram_start = SST_BYT_DRAM_PHY_START,
	63	.dram_end = SST_BYT_DRAM_PHY_END,
	64	.dram_use = true,
	65	.imr_start = SST_BYT_IMR_VIRT_START,
	66	.imr_end = SST_BYT_IMR_VIRT_END,
	67	.imr_use = true,
	68	.mailbox_start = SST_BYT_MBOX_PHY_ADDR,
	69	.num_probes = 0,
	70	.lpe_viewpt_rqd = true,
	71	};
	72
	73	static const struct sst_ipc_info byt_ipc_info = {
	74	.ipc_offset = 0,
	75	.mbox_recv_off = 0x400,
	76	};
	77
	78	static const struct sst_lib_dnld_info byt_lib_dnld_info = {
	79	.mod_base = SST_BYT_IMR_VIRT_START,
	80	.mod_end = SST_BYT_IMR_VIRT_END,
	81	.mod_table_offset = BYT_FW_MOD_TABLE_OFFSET,
	82	.mod_table_size = BYT_FW_MOD_TABLE_SIZE,
	83	.mod_ddr_dnld = false,
	84	};
	85
	86	static const struct sst_res_info byt_rvp_res_info = {
	87	.shim_offset = 0x140000,
	88	.shim_size = 0x000100,
	89	.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
	90	.ssp0_offset = 0xa0000,
	91	.ssp0_size = 0x1000,
	92	.dma0_offset = 0x98000,
	93	.dma0_size = 0x4000,
	94	.dma1_offset = 0x9c000,
	95	.dma1_size = 0x4000,
	96	.iram_offset = 0x0c0000,
	97	.iram_size = 0x14000,
	98	.dram_offset = 0x100000,
	99	.dram_size = 0x28000,
	100	.mbox_offset = 0x144000,
	101	.mbox_size = 0x1000,
102	.acpi_lpe_res_index = 0,
103	.acpi_ddr_index = 2,
104	.acpi_ipc_irq_index = 5,
105	};
106
a68bc0d4 PLB	107	/* BYTCR has different BIOS from BYT */
	108	static const struct sst_res_info bytcr_res_info = {
	109	.shim_offset = 0x140000,
	110	.shim_size = 0x000100,
	111	.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
	112	.ssp0_offset = 0xa0000,
	113	.ssp0_size = 0x1000,
	114	.dma0_offset = 0x98000,
	115	.dma0_size = 0x4000,
	116	.dma1_offset = 0x9c000,
	117	.dma1_size = 0x4000,
	118	.iram_offset = 0x0c0000,
	119	.iram_size = 0x14000,
	120	.dram_offset = 0x100000,
	121	.dram_size = 0x28000,
	122	.mbox_offset = 0x144000,
	123	.mbox_size = 0x1000,
	124	.acpi_lpe_res_index = 0,
	125	.acpi_ddr_index = 2,
	126	.acpi_ipc_irq_index = 0
	127	};
	128
1a28fc19	129	static struct sst_platform_info byt_rvp_platform_data = {
336cfbb0 VK	130	.probe_data = &byt_fwparse_info,
	131	.ipc_info = &byt_ipc_info,
	132	.lib_info = &byt_lib_dnld_info,
	133	.res_info = &byt_rvp_res_info,
	134	.platform = "sst-mfld-platform",
bf642bf5	135	.streams_lost_on_suspend = true,
336cfbb0 VK	136	};
336cfbb0 VK	137
bd01fdc3	138	/* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail,
bf642bf5	139	* so pdata is same as Baytrail, minus the streams_lost_on_suspend quirk.
bd01fdc3	140	*/
14cd7923	141	static struct sst_platform_info chv_platform_data = {
bd01fdc3 ML	142	.probe_data = &byt_fwparse_info,
	143	.ipc_info = &byt_ipc_info,
	144	.lib_info = &byt_lib_dnld_info,
	145	.res_info = &byt_rvp_res_info,
	146	.platform = "sst-mfld-platform",
	147	};
	148
336cfbb0 VK	149	static int sst_platform_get_resources(struct intel_sst_drv *ctx)
	150	{
	151	struct resource *rsrc;
	152	struct platform_device *pdev = to_platform_device(ctx->dev);
	153
	154	/* All ACPI resource request here */
	155	/* Get Shim addr */
	156	rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
	157	ctx->pdata->res_info->acpi_lpe_res_index);
	158	if (!rsrc) {
1635c694	159	dev_err(ctx->dev, "Invalid SHIM base from IFWI\n");
336cfbb0 VK	160	return -EIO;
	161	}
	162	dev_info(ctx->dev, "LPE base: %#x size:%#x", (unsigned int) rsrc->start,
	163	(unsigned int)resource_size(rsrc));
	164
	165	ctx->iram_base = rsrc->start + ctx->pdata->res_info->iram_offset;
	166	ctx->iram_end = ctx->iram_base + ctx->pdata->res_info->iram_size - 1;
	167	dev_info(ctx->dev, "IRAM base: %#x", ctx->iram_base);
	168	ctx->iram = devm_ioremap_nocache(ctx->dev, ctx->iram_base,
	169	ctx->pdata->res_info->iram_size);
	170	if (!ctx->iram) {
1635c694	171	dev_err(ctx->dev, "unable to map IRAM\n");
336cfbb0 VK	172	return -EIO;
	173	}
	174
	175	ctx->dram_base = rsrc->start + ctx->pdata->res_info->dram_offset;
	176	ctx->dram_end = ctx->dram_base + ctx->pdata->res_info->dram_size - 1;
	177	dev_info(ctx->dev, "DRAM base: %#x", ctx->dram_base);
	178	ctx->dram = devm_ioremap_nocache(ctx->dev, ctx->dram_base,
	179	ctx->pdata->res_info->dram_size);
	180	if (!ctx->dram) {
1635c694	181	dev_err(ctx->dev, "unable to map DRAM\n");
336cfbb0 VK	182	return -EIO;
	183	}
	184
	185	ctx->shim_phy_add = rsrc->start + ctx->pdata->res_info->shim_offset;
	186	dev_info(ctx->dev, "SHIM base: %#x", ctx->shim_phy_add);
	187	ctx->shim = devm_ioremap_nocache(ctx->dev, ctx->shim_phy_add,
	188	ctx->pdata->res_info->shim_size);
	189	if (!ctx->shim) {
1635c694	190	dev_err(ctx->dev, "unable to map SHIM\n");
336cfbb0 VK	191	return -EIO;
	192	}
	193
	194	/* reassign physical address to LPE viewpoint address */
	195	ctx->shim_phy_add = ctx->pdata->res_info->shim_phy_addr;
	196
	197	/* Get mailbox addr */
	198	ctx->mailbox_add = rsrc->start + ctx->pdata->res_info->mbox_offset;
	199	dev_info(ctx->dev, "Mailbox base: %#x", ctx->mailbox_add);
	200	ctx->mailbox = devm_ioremap_nocache(ctx->dev, ctx->mailbox_add,
	201	ctx->pdata->res_info->mbox_size);
	202	if (!ctx->mailbox) {
1635c694	203	dev_err(ctx->dev, "unable to map mailbox\n");
336cfbb0 VK	204	return -EIO;
	205	}
	206
	207	/* reassign physical address to LPE viewpoint address */
	208	ctx->mailbox_add = ctx->info.mailbox_start;
	209
	210	rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
	211	ctx->pdata->res_info->acpi_ddr_index);
	212	if (!rsrc) {
1635c694	213	dev_err(ctx->dev, "Invalid DDR base from IFWI\n");
336cfbb0 VK	214	return -EIO;
	215	}
	216	ctx->ddr_base = rsrc->start;
	217	ctx->ddr_end = rsrc->end;
	218	dev_info(ctx->dev, "DDR base: %#x", ctx->ddr_base);
	219	ctx->ddr = devm_ioremap_nocache(ctx->dev, ctx->ddr_base,
	220	resource_size(rsrc));
	221	if (!ctx->ddr) {
1635c694	222	dev_err(ctx->dev, "unable to map DDR\n");
336cfbb0 VK	223	return -EIO;
	224	}
	225
	226	/* Find the IRQ */
	227	ctx->irq_num = platform_get_irq(pdev,
	228	ctx->pdata->res_info->acpi_ipc_irq_index);
eee44bfc AY	229	if (ctx->irq_num <= 0)
	230	return ctx->irq_num < 0 ? ctx->irq_num : -EIO;
	231
336cfbb0 VK	232	return 0;
	233	}
	234
5129ad6e	235	static int sst_acpi_probe(struct platform_device *pdev)
336cfbb0 VK	236	{
	237	struct device *dev = &pdev->dev;
	238	int ret = 0;
	239	struct intel_sst_drv *ctx;
	240	const struct acpi_device_id *id;
7feb2f78	241	struct snd_soc_acpi_mach *mach;
336cfbb0 VK	242	struct platform_device *mdev;
336cfbb0 VK	243	struct platform_device *plat_dev;
12cc291b	244	struct sst_platform_info *pdata;
336cfbb0 VK	245	unsigned int dev_id;
	246
	247	id = acpi_match_device(dev->driver->acpi_match_table, dev);
	248	if (!id)
	249	return -ENODEV;
1635c694	250	dev_dbg(dev, "for %s\n", id->id);
336cfbb0	251
7feb2f78 PLB	252	mach = (struct snd_soc_acpi_mach *)id->driver_data;
7feb2f78 PLB	253	mach = snd_soc_acpi_find_machine(mach);
336cfbb0 VK	254	if (mach == NULL) {
	255	dev_err(dev, "No matching machine driver found\n");
	256	return -ENODEV;
	257	}
73a33f6f	258
536cfd2f	259	if (soc_intel_is_byt())
60046406 PLB	260	mach->pdata = &byt_rvp_platform_data;
	261	else
	262	mach->pdata = &chv_platform_data;
12cc291b	263	pdata = mach->pdata;
336cfbb0 VK	264
	265	ret = kstrtouint(id->id, 16, &dev_id);
	266	if (ret < 0) {
	267	dev_err(dev, "Unique device id conversion error: %d\n", ret);
	268	return ret;
	269	}
	270
	271	dev_dbg(dev, "ACPI device id: %x\n", dev_id);
	272
a68bc0d4 PLB	273	ret = sst_alloc_drv_context(&ctx, dev, dev_id);
	274	if (ret < 0)
	275	return ret;
	276
536cfd2f	277	if (soc_intel_is_byt_cr(pdev)) {
a68bc0d4 PLB	278	/* override resource info */
	279	byt_rvp_platform_data.res_info = &bytcr_res_info;
	280	}
	281
3ee1cd4f PLB	282	/* update machine parameters */
	283	mach->mach_params.acpi_ipc_irq_index =
	284	pdata->res_info->acpi_ipc_irq_index;
	285
caf94ed8 PLB	286	plat_dev = platform_device_register_data(dev, pdata->platform, -1,
caf94ed8 PLB	287	NULL, 0);
f5d40b40	288	if (IS_ERR(plat_dev)) {
caf94ed8 PLB	289	dev_err(dev, "Failed to create machine device: %s\n",
caf94ed8 PLB	290	pdata->platform);
f5d40b40	291	return PTR_ERR(plat_dev);
336cfbb0 VK	292	}
336cfbb0 VK	293
caf94ed8 PLB	294	/*
	295	* Create platform device for sst machine driver,
	296	* pass machine info as pdata
	297	*/
	298	mdev = platform_device_register_data(dev, mach->drv_name, -1,
	299	(const void )mach, sizeof(mach));
f5d40b40	300	if (IS_ERR(mdev)) {
caf94ed8 PLB	301	dev_err(dev, "Failed to create machine device: %s\n",
caf94ed8 PLB	302	mach->drv_name);
f5d40b40	303	return PTR_ERR(mdev);
336cfbb0 VK	304	}
336cfbb0 VK	305
336cfbb0	306	/* Fill sst platform data */
12cc291b VK	307	ctx->pdata = pdata;
12cc291b VK	308	strcpy(ctx->firmware_name, mach->fw_filename);
336cfbb0 VK	309
	310	ret = sst_platform_get_resources(ctx);
	311	if (ret)
	312	return ret;
	313
	314	ret = sst_context_init(ctx);
	315	if (ret < 0)
	316	return ret;
	317
336cfbb0 VK	318	sst_configure_runtime_pm(ctx);
	319	platform_set_drvdata(pdev, ctx);
	320	return ret;
336cfbb0 VK	321	}
	322
	323	/**
	324	* intel_sst_remove - remove function
	325	*
	326	* @pdev: platform device structure
	327	*
	328	* This function is called by OS when a device is unloaded
	329	* This frees the interrupt etc
	330	*/
5129ad6e	331	static int sst_acpi_remove(struct platform_device *pdev)
336cfbb0 VK	332	{
	333	struct intel_sst_drv *ctx;
	334
	335	ctx = platform_get_drvdata(pdev);
	336	sst_context_cleanup(ctx);
	337	platform_set_drvdata(pdev, NULL);
	338	return 0;
	339	}
	340
336cfbb0	341	static const struct acpi_device_id sst_acpi_ids[] = {
60046406 PLB	342	{ "80860F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
60046406 PLB	343	{ "808622A8", (unsigned long)&snd_soc_acpi_intel_cherrytrail_machines},
336cfbb0 VK	344	{ },
	345	};
	346
eb826a35 ML	347	MODULE_DEVICE_TABLE(acpi, sst_acpi_ids);
eb826a35 ML	348
336cfbb0 VK	349	static struct platform_driver sst_acpi_driver = {
	350	.driver = {
	351	.name = "intel_sst_acpi",
336cfbb0 VK	352	.acpi_match_table = ACPI_PTR(sst_acpi_ids),
	353	.pm = &intel_sst_pm,
	354	},
	355	.probe = sst_acpi_probe,
	356	.remove = sst_acpi_remove,
	357	};
	358
	359	module_platform_driver(sst_acpi_driver);
	360
	361	MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver");
	362	MODULE_AUTHOR("Ramesh Babu K V");
	363	MODULE_AUTHOR("Omair Mohammed Abdullah");
	364	MODULE_LICENSE("GPL v2");
	365	MODULE_ALIAS("sst");