mmc: sdhci-acpi: Disable write protect detection on Toshiba Encore 2 WT8-B

On the Toshiba Encore 2 WT8-B the  microSD slot always reports the card
being write-protected even though microSD cards do not have a write-protect
switch at all.

Add a new DMI_QUIRK_SD_NO_WRITE_PROTECT quirk entry to sdhci-acpi.c's
DMI quirk table for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20210503092157.5689-1-hdegoede@redhat.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index c3fbf8c..8fe65f1 100644 (file)
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -822,6 +822,17 @@ static const struct dmi_system_id sdhci_acpi_quirks[] = {
                },
                .driver_data = (void *)DMI_QUIRK_SD_NO_WRITE_PROTECT,
        },
+       {
+               /*
+                * The Toshiba WT8-B's microSD slot always reports the card being
+                * write-protected.
+                */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "TOSHIBA ENCORE 2 WT8-B"),
+               },
+               .driver_data = (void *)DMI_QUIRK_SD_NO_WRITE_PROTECT,
+       },
        {} /* Terminating entry */
 };