Messages in this thread Patch in this message | | | From | Hans de Goede <> | Subject | [PATCH v2 4/5] ASoC: Intel: Add DMI quirk table to soc_intel_is_byt_cr() | Date | Sun, 17 Jan 2021 16:47:16 +0100 |
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Some Bay Trail systems: 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 to workaround non CR systems which list their IPC IRQ at index 0 despite being non CR does not work 3. Despite 1. and 2. still have their IPC IRQ at index 0 rather then 5
Add a DMI quirk table to check for the few known models with this issue, so that the right IPC IRQ index is used on these systems.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- sound/soc/intel/common/soc-intel-quirks.h | 25 +++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/sound/soc/intel/common/soc-intel-quirks.h b/sound/soc/intel/common/soc-intel-quirks.h index b07df3059926..a93987ab7f4d 100644 --- a/sound/soc/intel/common/soc-intel-quirks.h +++ b/sound/soc/intel/common/soc-intel-quirks.h @@ -11,6 +11,7 @@ #if IS_ENABLED(CONFIG_X86) +#include <linux/dmi.h> #include <asm/cpu_device_id.h> #include <asm/intel-family.h> #include <asm/iosf_mbi.h> @@ -38,12 +39,36 @@ SOC_INTEL_IS_CPU(cml, KABYLAKE_L); 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; -- 2.28.0
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