tree f476926d9d892058bcf455993574bb50f3baaa25
parent d75bc03f452f952dd3c997d3b524417dd614b58b
author Laurence Withers <lwithers@guralp.com> 1343188548 +0000
committer Tom Rini <trini@ti.com> 1349719927 -0700

GPIO: pca953x: fix error reporting

Use the standard CMD_RET_* constants to clearly report errors from the
pca953x command. In addition, print error messages when I2C communication
fails.

Signed-off-by: Laurence Withers <lwithers@guralp.com>