From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- sound/soc/intel/common/soc-intel-quirks.h | 98 +++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 sound/soc/intel/common/soc-intel-quirks.h (limited to 'sound/soc/intel/common/soc-intel-quirks.h') diff --git a/sound/soc/intel/common/soc-intel-quirks.h b/sound/soc/intel/common/soc-intel-quirks.h new file mode 100644 index 0000000000..de4e550c5b --- /dev/null +++ b/sound/soc/intel/common/soc-intel-quirks.h @@ -0,0 +1,98 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * soc-intel-quirks.h - prototypes for quirk autodetection + * + * Copyright (c) 2019, Intel Corporation. + * + */ + +#ifndef _SND_SOC_INTEL_QUIRKS_H +#define _SND_SOC_INTEL_QUIRKS_H + +#include + +#if IS_ENABLED(CONFIG_X86) + +#include +#include + +static inline bool soc_intel_is_byt_cr(struct platform_device *pdev) +{ + /* + * List of systems which: + * 1. Use a non CR version of the Bay Trail SoC + * 2. Contain at least 6 interrupt resources so that the + * platform_get_resource(pdev, IORESOURCE_IRQ, 5) check below + * succeeds + * 3. Despite 1. and 2. still have their IPC IRQ at index 0 rather then 5 + * + * This needs to be here so that it can be shared between the SST and + * SOF drivers. We rely on the compiler to optimize this out in files + * where soc_intel_is_byt_cr is not used. + */ + static const struct dmi_system_id force_bytcr_table[] = { + { /* Lenovo Yoga Tablet 2 series */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_FAMILY, "YOGATablet2"), + }, + }, + {} + }; + struct device *dev = &pdev->dev; + int status = 0; + + if (!soc_intel_is_byt()) + return false; + + if (dmi_check_system(force_bytcr_table)) + return true; + + if (iosf_mbi_available()) { + u32 bios_status; + + status = iosf_mbi_read(BT_MBI_UNIT_PMC, /* 0x04 PUNIT */ + MBI_REG_READ, /* 0x10 */ + 0x006, /* BIOS_CONFIG */ + &bios_status); + + if (status) { + dev_err(dev, "could not read PUNIT BIOS_CONFIG\n"); + } else { + /* bits 26:27 mirror PMIC options */ + bios_status = (bios_status >> 26) & 3; + + if (bios_status == 1 || bios_status == 3) { + dev_info(dev, "Detected Baytrail-CR platform\n"); + return true; + } + + dev_info(dev, "BYT-CR not detected\n"); + } + } else { + dev_info(dev, "IOSF_MBI not available, no BYT-CR detection\n"); + } + + if (!platform_get_resource(pdev, IORESOURCE_IRQ, 5)) { + /* + * Some devices detected as BYT-T have only a single IRQ listed, + * causing platform_get_irq with index 5 to return -ENXIO. + * The correct IRQ in this case is at index 0, as on BYT-CR. + */ + dev_info(dev, "Falling back to Baytrail-CR platform\n"); + return true; + } + + return false; +} + +#else + +static inline bool soc_intel_is_byt_cr(struct platform_device *pdev) +{ + return false; +} + +#endif + +#endif /* _SND_SOC_INTEL_QUIRKS_H */ -- cgit v1.2.3