tree 48e948a4280720cebc824335dab61f68558e13fc
parent 7a8979591171676417ab36852d8811a8c46accd8
author Peter Tyser <ptyser@xes-inc.com> 1229553381 -0600
committer Andrew Fleming-AFLEMING <afleming@freescale.com> 1229731909 -0600

Add support for PCA953x I2C gpio devices

Initial support for NXP's 4 and 8 bit I2C gpio expanders
(eg pca9537, pca9557, etc). The CONFIG_PCA953X define
enables support for the devices while the CONFIG_CMD_PCA953X
define enables the pca953x command. The CONFIG_CMD_PCA953X_INFO
define enables an 'info' sub-command which provides summary
information for the given pca953x device.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>