ata_acpi_push_timing — set the channel (controller) timings
void ata_acpi_push_timing (
struct ata_port * ap)
;
For PATA ACPI, this function executes the _STM ACPI method for the target channel.
_STM only applies to ATA controllers in PATA (legacy) mode, not to SATA. In legacy mode, ap->hard_port_no is channel (controller) number.
_STM requires Identify Drive data, which must already be present in ata_device->id[] (i.e., it's not fetched here).