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platform/x86: touchscreen_dmi: Add EFI embedded firmware info support

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Sofar we have been unable to get permission from the vendors to put the
firmware for touchscreens listed in touchscreen_dmi in linux-firmware.

Some of the tablets with such a touchscreen have a touchscreen driver, and
thus a copy of the firmware, as part of their EFI code.

This commit adds the necessary info for the new EFI embedded-firmware code
to extract these firmwares, making the touchscreen work OOTB without the
user needing to manually add the firmware.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-10-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede
2020-01-15 17:35:53 +01:00
committed by Greg Kroah-Hartman
parent 85bfb4af14
commit 835e1b86ef
4 changed files with 46 additions and 1 deletions
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3
drivers/firmware/efi/embedded-firmware.c
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@@ -21,6 +21,9 @@ EXPORT_SYMBOL_GPL(efi_embedded_fw_list);
static bool checked_for_fw;
static const struct dmi_system_id * const embedded_fw_table[] = {
#ifdef CONFIG_TOUCHSCREEN_DMI
touchscreen_dmi_table,
#endif
NULL
};