ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/sound/soc/intel/common/soc-intel-quirks.h b/marvell/linux/sound/soc/intel/common/soc-intel-quirks.h
new file mode 100644
index 0000000..a7960b4
--- /dev/null
+++ b/marvell/linux/sound/soc/intel/common/soc-intel-quirks.h
@@ -0,0 +1,98 @@
+/* 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
+
+#include <linux/platform_data/x86/soc.h>
+
+#if IS_REACHABLE(CONFIG_IOSF_MBI)
+
+#include <linux/dmi.h>
+#include <asm/iosf_mbi.h>
+
+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 */