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2a78e42104
Modify the rtc-cmos driver to bind to a platform device on systems with ACPI via acpi_match_table and advertise the CMOST RTC ACPI device IDs for driver auto-loading. Note that adding the requisite device IDs to it and exposing them via MODULE_DEVICE_TABLE() is sufficient for this purpose. Since the ACPI device IDs in question are the same as for the CMOS RTC ACPI scan handler, put them into a common header file and use the definition from there in both places. Additionally, to prevent a PNP device from being created for the CMOS RTC if a platform one is present already, make is_cmos_rtc_device() check cmos_rtc_platform_device_present introduced previously. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://patch.msgid.link/13969123.uLZWGnKmhe@rafael.j.wysocki