The GPD WIN (I55) has a bug in its ACPI tables where putting the unused 80860F14 UID 2 (SDIO) device in PS0 toggles a gpio disabling the pcie wifi until the next reboot. Add a quirk to skip probing of the unused SDIO controller, fixing this. Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> --- drivers/mmc/host/sdhci-acpi.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index 873beae..957d0b8 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -36,6 +36,7 @@ #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/delay.h> +#include <linux/dmi.h> #include <linux/mmc/host.h> #include <linux/mmc/pm.h> @@ -397,6 +398,18 @@ static int sdhci_acpi_probe(struct platform_device *pdev) if (acpi_bus_get_status(device) || !device->status.present) return -ENODEV; + hid = acpi_device_hid(device); + uid = device->pnp.unique_id; + + /* + * The GPD WIN (I55) has a bug in its ACPI tables where putting the + * unused 80860F14 UID 2 (SDIO) device in PS0 toggles a gpio + * disabling the pcie wifi. + */ + if (strcmp(hid, "80860F14") == 0 && strcmp(uid, "2") == 0 && + dmi_match(DMI_PRODUCT_NAME, "GPD-WINI55")) + return -ENODEV; + /* Power on the SDHCI controller and its children */ acpi_device_fix_up_power(device); list_for_each_entry(child, &device->children, node) @@ -406,9 +419,6 @@ static int sdhci_acpi_probe(struct platform_device *pdev) if (sdhci_acpi_byt_defer(dev)) return -EPROBE_DEFER; - hid = acpi_device_hid(device); - uid = device->pnp.unique_id; - iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!iomem) return -ENOMEM; -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
