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372 lines
10 KiB
372 lines
10 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* sst_acpi.c - SST (LPE) driver init file for ACPI enumeration. |
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* |
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* Copyright (c) 2013, Intel Corporation. |
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* |
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* Authors: Ramesh Babu K V <[email protected]> |
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* Authors: Omair Mohammed Abdullah <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/fs.h> |
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#include <linux/interrupt.h> |
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#include <linux/slab.h> |
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#include <linux/io.h> |
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#include <linux/platform_device.h> |
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#include <linux/firmware.h> |
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#include <linux/pm_runtime.h> |
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#include <linux/pm_qos.h> |
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#include <linux/dmi.h> |
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#include <linux/acpi.h> |
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#include <asm/platform_sst_audio.h> |
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#include <sound/core.h> |
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#include <sound/intel-dsp-config.h> |
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#include <sound/soc.h> |
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#include <sound/compress_driver.h> |
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#include <acpi/acbuffer.h> |
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#include <acpi/platform/acenv.h> |
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#include <acpi/platform/aclinux.h> |
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#include <acpi/actypes.h> |
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#include <acpi/acpi_bus.h> |
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#include <sound/soc-acpi.h> |
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#include <sound/soc-acpi-intel-match.h> |
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#include "../sst-mfld-platform.h" |
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#include "../../common/soc-intel-quirks.h" |
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#include "sst.h" |
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/* LPE viewpoint addresses */ |
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#define SST_BYT_IRAM_PHY_START 0xff2c0000 |
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#define SST_BYT_IRAM_PHY_END 0xff2d4000 |
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#define SST_BYT_DRAM_PHY_START 0xff300000 |
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#define SST_BYT_DRAM_PHY_END 0xff320000 |
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#define SST_BYT_IMR_VIRT_START 0xc0000000 /* virtual addr in LPE */ |
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#define SST_BYT_IMR_VIRT_END 0xc01fffff |
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#define SST_BYT_SHIM_PHY_ADDR 0xff340000 |
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#define SST_BYT_MBOX_PHY_ADDR 0xff344000 |
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#define SST_BYT_DMA0_PHY_ADDR 0xff298000 |
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#define SST_BYT_DMA1_PHY_ADDR 0xff29c000 |
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#define SST_BYT_SSP0_PHY_ADDR 0xff2a0000 |
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#define SST_BYT_SSP2_PHY_ADDR 0xff2a2000 |
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#define BYT_FW_MOD_TABLE_OFFSET 0x80000 |
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#define BYT_FW_MOD_TABLE_SIZE 0x100 |
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#define BYT_FW_MOD_OFFSET (BYT_FW_MOD_TABLE_OFFSET + BYT_FW_MOD_TABLE_SIZE) |
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static const struct sst_info byt_fwparse_info = { |
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.use_elf = false, |
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.max_streams = 25, |
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.iram_start = SST_BYT_IRAM_PHY_START, |
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.iram_end = SST_BYT_IRAM_PHY_END, |
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.iram_use = true, |
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.dram_start = SST_BYT_DRAM_PHY_START, |
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.dram_end = SST_BYT_DRAM_PHY_END, |
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.dram_use = true, |
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.imr_start = SST_BYT_IMR_VIRT_START, |
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.imr_end = SST_BYT_IMR_VIRT_END, |
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.imr_use = true, |
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.mailbox_start = SST_BYT_MBOX_PHY_ADDR, |
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.num_probes = 0, |
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.lpe_viewpt_rqd = true, |
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}; |
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static const struct sst_ipc_info byt_ipc_info = { |
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.ipc_offset = 0, |
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.mbox_recv_off = 0x400, |
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}; |
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static const struct sst_lib_dnld_info byt_lib_dnld_info = { |
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.mod_base = SST_BYT_IMR_VIRT_START, |
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.mod_end = SST_BYT_IMR_VIRT_END, |
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.mod_table_offset = BYT_FW_MOD_TABLE_OFFSET, |
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.mod_table_size = BYT_FW_MOD_TABLE_SIZE, |
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.mod_ddr_dnld = false, |
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}; |
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static const struct sst_res_info byt_rvp_res_info = { |
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.shim_offset = 0x140000, |
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.shim_size = 0x000100, |
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.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR, |
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.ssp0_offset = 0xa0000, |
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.ssp0_size = 0x1000, |
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.dma0_offset = 0x98000, |
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.dma0_size = 0x4000, |
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.dma1_offset = 0x9c000, |
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.dma1_size = 0x4000, |
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.iram_offset = 0x0c0000, |
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.iram_size = 0x14000, |
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.dram_offset = 0x100000, |
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.dram_size = 0x28000, |
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.mbox_offset = 0x144000, |
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.mbox_size = 0x1000, |
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.acpi_lpe_res_index = 0, |
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.acpi_ddr_index = 2, |
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.acpi_ipc_irq_index = 5, |
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}; |
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/* BYTCR has different BIOS from BYT */ |
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static const struct sst_res_info bytcr_res_info = { |
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.shim_offset = 0x140000, |
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.shim_size = 0x000100, |
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.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR, |
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.ssp0_offset = 0xa0000, |
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.ssp0_size = 0x1000, |
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.dma0_offset = 0x98000, |
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.dma0_size = 0x4000, |
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.dma1_offset = 0x9c000, |
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.dma1_size = 0x4000, |
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.iram_offset = 0x0c0000, |
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.iram_size = 0x14000, |
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.dram_offset = 0x100000, |
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.dram_size = 0x28000, |
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.mbox_offset = 0x144000, |
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.mbox_size = 0x1000, |
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.acpi_lpe_res_index = 0, |
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.acpi_ddr_index = 2, |
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.acpi_ipc_irq_index = 0 |
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}; |
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static struct sst_platform_info byt_rvp_platform_data = { |
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.probe_data = &byt_fwparse_info, |
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.ipc_info = &byt_ipc_info, |
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.lib_info = &byt_lib_dnld_info, |
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.res_info = &byt_rvp_res_info, |
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.platform = "sst-mfld-platform", |
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.streams_lost_on_suspend = true, |
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}; |
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/* Cherryview (Cherrytrail and Braswell) uses same mrfld dpcm fw as Baytrail, |
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* so pdata is same as Baytrail, minus the streams_lost_on_suspend quirk. |
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*/ |
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static struct sst_platform_info chv_platform_data = { |
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.probe_data = &byt_fwparse_info, |
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.ipc_info = &byt_ipc_info, |
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.lib_info = &byt_lib_dnld_info, |
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.res_info = &byt_rvp_res_info, |
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.platform = "sst-mfld-platform", |
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}; |
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static int sst_platform_get_resources(struct intel_sst_drv *ctx) |
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{ |
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struct resource *rsrc; |
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struct platform_device *pdev = to_platform_device(ctx->dev); |
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/* All ACPI resource request here */ |
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/* Get Shim addr */ |
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rsrc = platform_get_resource(pdev, IORESOURCE_MEM, |
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ctx->pdata->res_info->acpi_lpe_res_index); |
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if (!rsrc) { |
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dev_err(ctx->dev, "Invalid SHIM base from IFWI\n"); |
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return -EIO; |
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} |
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dev_info(ctx->dev, "LPE base: %#x size:%#x", (unsigned int) rsrc->start, |
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(unsigned int)resource_size(rsrc)); |
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ctx->iram_base = rsrc->start + ctx->pdata->res_info->iram_offset; |
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ctx->iram_end = ctx->iram_base + ctx->pdata->res_info->iram_size - 1; |
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dev_info(ctx->dev, "IRAM base: %#x", ctx->iram_base); |
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ctx->iram = devm_ioremap(ctx->dev, ctx->iram_base, |
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ctx->pdata->res_info->iram_size); |
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if (!ctx->iram) { |
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dev_err(ctx->dev, "unable to map IRAM\n"); |
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return -EIO; |
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} |
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ctx->dram_base = rsrc->start + ctx->pdata->res_info->dram_offset; |
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ctx->dram_end = ctx->dram_base + ctx->pdata->res_info->dram_size - 1; |
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dev_info(ctx->dev, "DRAM base: %#x", ctx->dram_base); |
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ctx->dram = devm_ioremap(ctx->dev, ctx->dram_base, |
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ctx->pdata->res_info->dram_size); |
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if (!ctx->dram) { |
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dev_err(ctx->dev, "unable to map DRAM\n"); |
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return -EIO; |
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} |
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ctx->shim_phy_add = rsrc->start + ctx->pdata->res_info->shim_offset; |
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dev_info(ctx->dev, "SHIM base: %#x", ctx->shim_phy_add); |
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ctx->shim = devm_ioremap(ctx->dev, ctx->shim_phy_add, |
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ctx->pdata->res_info->shim_size); |
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if (!ctx->shim) { |
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dev_err(ctx->dev, "unable to map SHIM\n"); |
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return -EIO; |
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} |
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/* reassign physical address to LPE viewpoint address */ |
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ctx->shim_phy_add = ctx->pdata->res_info->shim_phy_addr; |
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/* Get mailbox addr */ |
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ctx->mailbox_add = rsrc->start + ctx->pdata->res_info->mbox_offset; |
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dev_info(ctx->dev, "Mailbox base: %#x", ctx->mailbox_add); |
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ctx->mailbox = devm_ioremap(ctx->dev, ctx->mailbox_add, |
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ctx->pdata->res_info->mbox_size); |
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if (!ctx->mailbox) { |
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dev_err(ctx->dev, "unable to map mailbox\n"); |
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return -EIO; |
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} |
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/* reassign physical address to LPE viewpoint address */ |
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ctx->mailbox_add = ctx->info.mailbox_start; |
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rsrc = platform_get_resource(pdev, IORESOURCE_MEM, |
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ctx->pdata->res_info->acpi_ddr_index); |
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if (!rsrc) { |
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dev_err(ctx->dev, "Invalid DDR base from IFWI\n"); |
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return -EIO; |
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} |
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ctx->ddr_base = rsrc->start; |
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ctx->ddr_end = rsrc->end; |
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dev_info(ctx->dev, "DDR base: %#x", ctx->ddr_base); |
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ctx->ddr = devm_ioremap(ctx->dev, ctx->ddr_base, |
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resource_size(rsrc)); |
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if (!ctx->ddr) { |
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dev_err(ctx->dev, "unable to map DDR\n"); |
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return -EIO; |
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} |
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/* Find the IRQ */ |
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ctx->irq_num = platform_get_irq(pdev, |
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ctx->pdata->res_info->acpi_ipc_irq_index); |
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if (ctx->irq_num <= 0) |
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return ctx->irq_num < 0 ? ctx->irq_num : -EIO; |
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return 0; |
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} |
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static int sst_acpi_probe(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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int ret = 0; |
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struct intel_sst_drv *ctx; |
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const struct acpi_device_id *id; |
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struct snd_soc_acpi_mach *mach; |
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struct platform_device *mdev; |
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struct platform_device *plat_dev; |
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struct sst_platform_info *pdata; |
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unsigned int dev_id; |
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id = acpi_match_device(dev->driver->acpi_match_table, dev); |
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if (!id) |
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return -ENODEV; |
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ret = snd_intel_acpi_dsp_driver_probe(dev, id->id); |
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if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SST) { |
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dev_dbg(dev, "SST ACPI driver not selected, aborting probe\n"); |
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return -ENODEV; |
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} |
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dev_dbg(dev, "for %s\n", id->id); |
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mach = (struct snd_soc_acpi_mach *)id->driver_data; |
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mach = snd_soc_acpi_find_machine(mach); |
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if (mach == NULL) { |
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dev_err(dev, "No matching machine driver found\n"); |
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return -ENODEV; |
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} |
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if (soc_intel_is_byt()) |
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mach->pdata = &byt_rvp_platform_data; |
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else |
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mach->pdata = &chv_platform_data; |
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pdata = mach->pdata; |
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ret = kstrtouint(id->id, 16, &dev_id); |
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if (ret < 0) { |
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dev_err(dev, "Unique device id conversion error: %d\n", ret); |
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return ret; |
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} |
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dev_dbg(dev, "ACPI device id: %x\n", dev_id); |
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ret = sst_alloc_drv_context(&ctx, dev, dev_id); |
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if (ret < 0) |
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return ret; |
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if (soc_intel_is_byt_cr(pdev)) { |
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/* override resource info */ |
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byt_rvp_platform_data.res_info = &bytcr_res_info; |
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} |
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/* update machine parameters */ |
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mach->mach_params.acpi_ipc_irq_index = |
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pdata->res_info->acpi_ipc_irq_index; |
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plat_dev = platform_device_register_data(dev, pdata->platform, -1, |
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NULL, 0); |
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if (IS_ERR(plat_dev)) { |
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dev_err(dev, "Failed to create machine device: %s\n", |
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pdata->platform); |
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return PTR_ERR(plat_dev); |
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} |
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/* |
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* Create platform device for sst machine driver, |
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* pass machine info as pdata |
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*/ |
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mdev = platform_device_register_data(dev, mach->drv_name, -1, |
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(const void *)mach, sizeof(*mach)); |
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if (IS_ERR(mdev)) { |
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dev_err(dev, "Failed to create machine device: %s\n", |
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mach->drv_name); |
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return PTR_ERR(mdev); |
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} |
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/* Fill sst platform data */ |
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ctx->pdata = pdata; |
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strcpy(ctx->firmware_name, mach->fw_filename); |
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ret = sst_platform_get_resources(ctx); |
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if (ret) |
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return ret; |
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ret = sst_context_init(ctx); |
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if (ret < 0) |
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return ret; |
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sst_configure_runtime_pm(ctx); |
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platform_set_drvdata(pdev, ctx); |
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return ret; |
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} |
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/** |
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* sst_acpi_remove - remove function |
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* |
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* @pdev: platform device structure |
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* |
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* This function is called by OS when a device is unloaded |
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* This frees the interrupt etc |
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*/ |
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static int sst_acpi_remove(struct platform_device *pdev) |
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{ |
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struct intel_sst_drv *ctx; |
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ctx = platform_get_drvdata(pdev); |
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sst_context_cleanup(ctx); |
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platform_set_drvdata(pdev, NULL); |
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return 0; |
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} |
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static const struct acpi_device_id sst_acpi_ids[] = { |
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{ "80860F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines}, |
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{ "808622A8", (unsigned long)&snd_soc_acpi_intel_cherrytrail_machines}, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(acpi, sst_acpi_ids); |
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static struct platform_driver sst_acpi_driver = { |
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.driver = { |
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.name = "intel_sst_acpi", |
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.acpi_match_table = ACPI_PTR(sst_acpi_ids), |
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.pm = &intel_sst_pm, |
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}, |
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.probe = sst_acpi_probe, |
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.remove = sst_acpi_remove, |
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}; |
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module_platform_driver(sst_acpi_driver); |
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MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine ACPI Driver"); |
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MODULE_AUTHOR("Ramesh Babu K V"); |
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MODULE_AUTHOR("Omair Mohammed Abdullah"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("sst");
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