c866d19518
[ Upstream commit dbcbfd662a725641d118fb3ae5ffb7be4e3d0fb0 ] On some devices the ACPI name of the touchscreen is e.g. either MSSL1680:00 or MSSL1680:01 depending on the BIOS version. This happens for example on the "Chuwi Hi8 Air" tablet where the initial commit's ts_data uses "MSSL1680:00" but the tablets from the github issue and linux-hardware.org probe linked below both use "MSSL1680:01". Replace the strcmp() match on ts_data->acpi_name with a strstarts() check to allow using a partial match on just the ACPI HID of "MSSL1680" and change the ts_data->acpi_name for the "Chuwi Hi8 Air" accordingly to fix the touchscreen not working on models where it is "MSSL1680:01". Note this drops the length check for I2C_NAME_SIZE. This never was necessary since the ACPI names used are never more then 11 chars and I2C_NAME_SIZE is 20 so the replaced strncmp() would always stop long before reaching I2C_NAME_SIZE. Link: https://linux-hardware.org/?computer=AC4301C0542A Fixes: bbb97d728f77 ("platform/x86: touchscreen_dmi: Add info for the Chuwi Hi8 Air tablet") Closes: https://github.com/onitake/gsl-firmware/issues/91 Cc: stable@vger.kernel.org Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240212120608.30469-1-hdegoede@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org> |
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