75 lines
2.4 KiB
Diff
75 lines
2.4 KiB
Diff
From ba9a97d8fcc4b07e4ef7ff988f6cac69ed2e0fef Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Mon, 21 Dec 2020 16:29:47 +0100
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Subject: [PATCH 12/14] ASoC: Intel: Add DMI quirk table to
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soc_intel_is_byt_cr()
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Some Bay Trail systems:
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1. Use a non CR version of the Bay Trail SoC
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2. Contain at least 6 interrupt resources so that the
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platform_get_resource(pdev, IORESOURCE_IRQ, 5) check to workaround
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non CR systems which list their IPC IRQ at index 0 despite being
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non CR does not work
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3. Despite 1. and 2. still have their IPC IRQ at index 0 rather then 5
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Add a DMI quirk table to check for the few known models with this issue,
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so that the right IPC IRQ index is used on these systems.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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sound/soc/intel/common/soc-intel-quirks.h | 25 +++++++++++++++++++++++
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1 file changed, 25 insertions(+)
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diff --git a/sound/soc/intel/common/soc-intel-quirks.h b/sound/soc/intel/common/soc-intel-quirks.h
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index b07df3059926..a93987ab7f4d 100644
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--- a/sound/soc/intel/common/soc-intel-quirks.h
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+++ b/sound/soc/intel/common/soc-intel-quirks.h
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@@ -11,6 +11,7 @@
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#if IS_ENABLED(CONFIG_X86)
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+#include <linux/dmi.h>
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#include <asm/cpu_device_id.h>
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#include <asm/intel-family.h>
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#include <asm/iosf_mbi.h>
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@@ -38,12 +39,36 @@ SOC_INTEL_IS_CPU(cml, KABYLAKE_L);
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static inline bool soc_intel_is_byt_cr(struct platform_device *pdev)
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{
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+ /*
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+ * List of systems which:
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+ * 1. Use a non CR version of the Bay Trail SoC
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+ * 2. Contain at least 6 interrupt resources so that the
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+ * platform_get_resource(pdev, IORESOURCE_IRQ, 5) check below
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+ * succeeds
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+ * 3. Despite 1. and 2. still have their IPC IRQ at index 0 rather then 5
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+ *
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+ * This needs to be here so that it can be shared between the SST and
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+ * SOF drivers. We rely on the compiler to optimize this out in files
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+ * where soc_intel_is_byt_cr is not used.
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+ */
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+ static const struct dmi_system_id force_bytcr_table[] = {
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+ { /* Lenovo Yoga Tablet 2 series */
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+ .matches = {
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+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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+ DMI_MATCH(DMI_PRODUCT_FAMILY, "YOGATablet2"),
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+ },
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+ },
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+ {}
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+ };
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struct device *dev = &pdev->dev;
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int status = 0;
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if (!soc_intel_is_byt())
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return false;
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+ if (dmi_check_system(force_bytcr_table))
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+ return true;
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+
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if (iosf_mbi_available()) {
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u32 bios_status;
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--
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2.28.0
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