Changes in sysfs-driver-fsi-master-gpio en Copyright 2015 Java b8bd146d - fsi: master-gpio: Add external mode http://172.16.0.5:8080/history/linux-6.15/Documentation/ABI/testing/sysfs-driver-fsi-master-gpio#b8bd146d fsi: master-gpio: Add external modeThis change introduces an 'external mode' for GPIO-based FSI masters,allowing the clock and data lines to be driven by an external source.For example, external mode is selected by a user when an external debugdevice is attached to the FSI pins.To do this, we need to set specific states for the trans, mux and enableGPIOs, and prevent access to clk & data from the FSI core code (byreturning EBUSY).External mode is controlled by a sysfs attribute, so add the relevantinformation to Documentation/ABI/Signed-off-by: Jeremy Kerr <jk@ozlabs.org>Reviewed-by: Joel Stanley <joel@jms.id.au>Signed-off-by: Joel Stanley <joel@jms.id.au>Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> List of files: /linux-6.15/Documentation/ABI/testing/sysfs-driver-fsi-master-gpio Mon, 12 Feb 2018 05:15:42 +0000 Jeremy Kerr <jk@ozlabs.org>