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/* SPDX-License-Identifier: GPL-2.0 */
/*
* 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
#if IS_ENABLED(CONFIG_X86)
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include <asm/iosf_mbi.h>
#define ICPU(model) { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
#define SOC_INTEL_IS_CPU(soc, type) \
static inline bool soc_intel_is_##soc(void) \
{ \
static const struct x86_cpu_id soc##_cpu_ids[] = { \
ICPU(type), \
{} \
}; \
const struct x86_cpu_id *id; \
\
id = x86_match_cpu(soc##_cpu_ids); \
if (id) \
return true; \
return false; \
}
SOC_INTEL_IS_CPU(byt, INTEL_FAM6_ATOM_SILVERMONT);
SOC_INTEL_IS_CPU(cht, INTEL_FAM6_ATOM_AIRMONT);
SOC_INTEL_IS_CPU(apl, INTEL_FAM6_ATOM_GOLDMONT);
SOC_INTEL_IS_CPU(glk, INTEL_FAM6_ATOM_GOLDMONT_PLUS);
static inline bool soc_intel_is_byt_cr(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int status = 0;
if (!soc_intel_is_byt())
return false;
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;
}
static inline bool soc_intel_is_byt(void)
{
return false;
}
static inline bool soc_intel_is_cht(void)
{
return false;
}
static inline bool soc_intel_is_apl(void)
{
return false;
}
static inline bool soc_intel_is_glk(void)
{
return false;
}
#endif
#endif /* _SND_SOC_INTEL_QUIRKS_H */
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