On Fri, Jul 01, 2016 at 11:19:06PM +0300, Octavian Purdila wrote: > If the ACPI tables changes as a result of a dinamically loaded table and > a bus rescan is required the enumeration/visited flag are not > consistent. > > I2C/SPI are not directly enumerated in acpi_bus_attach(), however the > visited flag is set. This makes it impossible to check if an ACPI device > has already been enumerated by the I2C and SPI subsystems. To fix this > issue we only set the visited flags if the device is not I2C or SPI. > > With this change we also need to remove setting visited to false from > acpi_bus_attach(), otherwise if we rescan already enumerated I2C/SPI > devices we try to re-enumerate them. > > Note that I2C/SPI devices can be enumerated either via a scan handler > (when using PRP0001) or via regular device_attach(). In either case > the flow goes through acpi_default_enumeration() which makes it the > ideal place to mark the ACPI device as enumerated. > > Signed-off-by: Octavian Purdila <octavian.purdila@xxxxxxxxx> Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
